diff options
Diffstat (limited to 'src/pulsecore')
145 files changed, 27456 insertions, 0 deletions
diff --git a/src/pulsecore/Makefile b/src/pulsecore/Makefile new file mode 120000 index 00000000..c110232d --- /dev/null +++ b/src/pulsecore/Makefile @@ -0,0 +1 @@ +../pulse/Makefile
\ No newline at end of file diff --git a/src/pulsecore/authkey-prop.c b/src/pulsecore/authkey-prop.c new file mode 100644 index 00000000..7eda1e49 --- /dev/null +++ b/src/pulsecore/authkey-prop.c @@ -0,0 +1,89 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <assert.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/props.h> +#include <pulsecore/log.h> + +#include "authkey-prop.h" + +struct authkey_data { + int ref; + size_t length; +}; + +int pa_authkey_prop_get(pa_core *c, const char *name, void *data, size_t len) { + struct authkey_data *a; + assert(c && name && data && len > 0); + + if (!(a = pa_property_get(c, name))) + return -1; + + assert(a->length == len); + memcpy(data, a+1, len); + return 0; +} + +int pa_authkey_prop_put(pa_core *c, const char *name, const void *data, size_t len) { + struct authkey_data *a; + assert(c && name); + + if (pa_property_get(c, name)) + return -1; + + a = pa_xmalloc(sizeof(struct authkey_data) + len); + a->ref = 1; + a->length = len; + memcpy(a+1, data, len); + + pa_property_set(c, name, a); + + return 0; +} + +void pa_authkey_prop_ref(pa_core *c, const char *name) { + struct authkey_data *a; + assert(c && name); + + a = pa_property_get(c, name); + assert(a && a->ref >= 1); + + a->ref++; +} + +void pa_authkey_prop_unref(pa_core *c, const char *name) { + struct authkey_data *a; + assert(c && name); + + a = pa_property_get(c, name); + assert(a && a->ref >= 1); + + if (!(--a->ref)) { + pa_property_remove(c, name); + pa_xfree(a); + } +} + + diff --git a/src/pulsecore/authkey-prop.h b/src/pulsecore/authkey-prop.h new file mode 100644 index 00000000..b1da28be --- /dev/null +++ b/src/pulsecore/authkey-prop.h @@ -0,0 +1,43 @@ +#ifndef fooauthkeyprophfoo +#define fooauthkeyprophfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> + +/* The authkey-prop uses a central property to store a previously + * loaded cookie in memory. Useful for sharing the same cookie between + * several modules. */ + +/* Return the data of the specified authorization key property. Doesn't alter the refernce count of the key */ +int pa_authkey_prop_get(pa_core *c, const char *name, void *data, size_t len); + +/* Store data in the specified authorization key property. The initial reference count is set to 1 */ +int pa_authkey_prop_put(pa_core *c, const char *name, const void *data, size_t len); + +/* Increase the reference count of the specified authorization key */ +void pa_authkey_prop_ref(pa_core *c, const char *name); + +/* Decrease the reference count of the specified authorization key */ +void pa_authkey_prop_unref(pa_core *c, const char *name); + +#endif diff --git a/src/pulsecore/authkey.c b/src/pulsecore/authkey.c new file mode 100644 index 00000000..064209d9 --- /dev/null +++ b/src/pulsecore/authkey.c @@ -0,0 +1,209 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <unistd.h> +#include <fcntl.h> +#include <string.h> +#include <errno.h> +#include <stdio.h> +#include <inttypes.h> +#include <stdlib.h> +#include <time.h> +#include <limits.h> +#include <sys/stat.h> + +#include <pulse/util.h> +#include <pulsecore/core-error.h> +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> +#include <pulsecore/random.h> + +#include "authkey.h" + +/* Generate a new authorization key, store it in file fd and return it in *data */ +static int generate(int fd, void *ret_data, size_t length) { + ssize_t r; + assert(fd >= 0 && ret_data && length); + + pa_random(ret_data, length); + + lseek(fd, 0, SEEK_SET); + ftruncate(fd, 0); + + if ((r = pa_loop_write(fd, ret_data, length)) < 0 || (size_t) r != length) { + pa_log(__FILE__": failed to write cookie file: %s", pa_cstrerror(errno)); + return -1; + } + + return 0; +} + +#ifndef O_BINARY +#define O_BINARY 0 +#endif + +/* Load an euthorization cookie from file fn and store it in data. If + * the cookie file doesn't exist, create it */ +static int load(const char *fn, void *data, size_t length) { + int fd = -1; + int writable = 1; + int unlock = 0, ret = -1; + ssize_t r; + assert(fn && data && length); + + if ((fd = open(fn, O_RDWR|O_CREAT|O_BINARY, S_IRUSR|S_IWUSR)) < 0) { + if (errno != EACCES || (fd = open(fn, O_RDONLY|O_BINARY)) < 0) { + pa_log(__FILE__": failed to open cookie file '%s': %s", fn, pa_cstrerror(errno)); + goto finish; + } else + writable = 0; + } + + unlock = pa_lock_fd(fd, 1) >= 0; + + if ((r = pa_loop_read(fd, data, length)) < 0) { + pa_log(__FILE__": failed to read cookie file '%s': %s", fn, pa_cstrerror(errno)); + goto finish; + } + + if ((size_t) r != length) { + pa_log_debug(__FILE__": got %d bytes from cookie file '%s', expected %d", (int)r, fn, (int)length); + + if (!writable) { + pa_log(__FILE__": unable to write cookie to read only file"); + goto finish; + } + + if (generate(fd, data, length) < 0) + goto finish; + } + + ret = 0; + +finish: + + if (fd >= 0) { + + if (unlock) + pa_lock_fd(fd, 0); + + close(fd); + } + + return ret; +} + +/* Load a cookie from a cookie file. If the file doesn't exist, create it. */ +int pa_authkey_load(const char *path, void *data, size_t length) { + int ret; + + assert(path && data && length); + + ret = load(path, data, length); + + if (ret < 0) + pa_log(__FILE__": Failed to load authorization key '%s': %s", path, + (ret == -1) ? pa_cstrerror(errno) : "file corrupt"); + + return ret; +} + +/* If the specified file path starts with / return it, otherwise + * return path prepended with home directory */ +static const char *normalize_path(const char *fn, char *s, size_t l) { + assert(fn && s && l > 0); + +#ifndef OS_IS_WIN32 + if (fn[0] != '/') { +#else + if (strlen(fn) < 3 || !isalpha(fn[0]) || fn[1] != ':' || fn[2] != '\\') { +#endif + char homedir[PATH_MAX]; + if (!pa_get_home_dir(homedir, sizeof(homedir))) + return NULL; + +#ifndef OS_IS_WIN32 + snprintf(s, l, "%s/%s", homedir, fn); +#else + snprintf(s, l, "%s\\%s", homedir, fn); +#endif + return s; + } + + return fn; +} + +/* Load a cookie from a file in the home directory. If the specified + * path starts with /, use it as absolute path instead. */ +int pa_authkey_load_auto(const char *fn, void *data, size_t length) { + char path[PATH_MAX]; + const char *p; + assert(fn && data && length); + + if (!(p = normalize_path(fn, path, sizeof(path)))) + return -2; + + return pa_authkey_load(p, data, length); +} + +/* Store the specified cookie in the speicified cookie file */ +int pa_authkey_save(const char *fn, const void *data, size_t length) { + int fd = -1; + int unlock = 0, ret = -1; + ssize_t r; + char path[PATH_MAX]; + const char *p; + assert(fn && data && length); + + if (!(p = normalize_path(fn, path, sizeof(path)))) + return -2; + + if ((fd = open(p, O_RDWR|O_CREAT, S_IRUSR|S_IWUSR)) < 0) { + pa_log(__FILE__": failed to open cookie file '%s': %s", fn, pa_cstrerror(errno)); + goto finish; + } + + unlock = pa_lock_fd(fd, 1) >= 0; + + if ((r = pa_loop_write(fd, data, length)) < 0 || (size_t) r != length) { + pa_log(__FILE__": failed to read cookie file '%s': %s", fn, pa_cstrerror(errno)); + goto finish; + } + + ret = 0; + +finish: + + if (fd >= 0) { + + if (unlock) + pa_lock_fd(fd, 0); + + close(fd); + } + + return ret; +} diff --git a/src/pulsecore/authkey.h b/src/pulsecore/authkey.h new file mode 100644 index 00000000..cc8a565c --- /dev/null +++ b/src/pulsecore/authkey.h @@ -0,0 +1,32 @@ +#ifndef fooauthkeyhfoo +#define fooauthkeyhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> + +int pa_authkey_load(const char *path, void *data, size_t len); +int pa_authkey_load_auto(const char *fn, void *data, size_t length); + +int pa_authkey_save(const char *path, const void *data, size_t length); + +#endif diff --git a/src/pulsecore/autoload.c b/src/pulsecore/autoload.c new file mode 100644 index 00000000..f6869097 --- /dev/null +++ b/src/pulsecore/autoload.c @@ -0,0 +1,182 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/module.h> +#include <pulsecore/memchunk.h> +#include <pulsecore/sound-file.h> +#include <pulsecore/log.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/core-subscribe.h> + +#include "autoload.h" + +static void entry_free(pa_autoload_entry *e) { + assert(e); + pa_subscription_post(e->core, PA_SUBSCRIPTION_EVENT_AUTOLOAD|PA_SUBSCRIPTION_EVENT_REMOVE, PA_INVALID_INDEX); + pa_xfree(e->name); + pa_xfree(e->module); + pa_xfree(e->argument); + pa_xfree(e); +} + +static void entry_remove_and_free(pa_autoload_entry *e) { + assert(e && e->core); + + pa_idxset_remove_by_data(e->core->autoload_idxset, e, NULL); + pa_hashmap_remove(e->core->autoload_hashmap, e->name); + entry_free(e); +} + +static pa_autoload_entry* entry_new(pa_core *c, const char *name) { + pa_autoload_entry *e = NULL; + assert(c && name); + + if (c->autoload_hashmap && (e = pa_hashmap_get(c->autoload_hashmap, name))) + return NULL; + + e = pa_xmalloc(sizeof(pa_autoload_entry)); + e->core = c; + e->name = pa_xstrdup(name); + e->module = e->argument = NULL; + e->in_action = 0; + + if (!c->autoload_hashmap) + c->autoload_hashmap = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); + assert(c->autoload_hashmap); + + pa_hashmap_put(c->autoload_hashmap, e->name, e); + + if (!c->autoload_idxset) + c->autoload_idxset = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + pa_idxset_put(c->autoload_idxset, e, &e->index); + + pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_AUTOLOAD|PA_SUBSCRIPTION_EVENT_NEW, e->index); + + return e; +} + +int pa_autoload_add(pa_core *c, const char*name, pa_namereg_type_t type, const char*module, const char *argument, uint32_t *idx) { + pa_autoload_entry *e = NULL; + assert(c && name && module && (type == PA_NAMEREG_SINK || type == PA_NAMEREG_SOURCE)); + + if (!(e = entry_new(c, name))) + return -1; + + e->module = pa_xstrdup(module); + e->argument = pa_xstrdup(argument); + e->type = type; + + if (idx) + *idx = e->index; + + return 0; +} + +int pa_autoload_remove_by_name(pa_core *c, const char*name, pa_namereg_type_t type) { + pa_autoload_entry *e; + assert(c && name && type); + + if (!c->autoload_hashmap || !(e = pa_hashmap_get(c->autoload_hashmap, name)) || e->type != type) + return -1; + + entry_remove_and_free(e); + return 0; +} + +int pa_autoload_remove_by_index(pa_core *c, uint32_t idx) { + pa_autoload_entry *e; + assert(c && idx != PA_IDXSET_INVALID); + + if (!c->autoload_idxset || !(e = pa_idxset_get_by_index(c->autoload_idxset, idx))) + return -1; + + entry_remove_and_free(e); + return 0; +} + +void pa_autoload_request(pa_core *c, const char *name, pa_namereg_type_t type) { + pa_autoload_entry *e; + pa_module *m; + assert(c && name); + + if (!c->autoload_hashmap || !(e = pa_hashmap_get(c->autoload_hashmap, name)) || (e->type != type)) + return; + + if (e->in_action) + return; + + e->in_action = 1; + + if (type == PA_NAMEREG_SINK || type == PA_NAMEREG_SOURCE) { + if ((m = pa_module_load(c, e->module, e->argument))) + m->auto_unload = 1; + } + + e->in_action = 0; +} + +static void free_func(void *p, PA_GCC_UNUSED void *userdata) { + pa_autoload_entry *e = p; + pa_idxset_remove_by_data(e->core->autoload_idxset, e, NULL); + entry_free(e); +} + +void pa_autoload_free(pa_core *c) { + if (c->autoload_hashmap) { + pa_hashmap_free(c->autoload_hashmap, free_func, NULL); + c->autoload_hashmap = NULL; + } + + if (c->autoload_idxset) { + pa_idxset_free(c->autoload_idxset, NULL, NULL); + c->autoload_idxset = NULL; + } +} + +const pa_autoload_entry* pa_autoload_get_by_name(pa_core *c, const char*name, pa_namereg_type_t type) { + pa_autoload_entry *e; + assert(c && name); + + if (!c->autoload_hashmap || !(e = pa_hashmap_get(c->autoload_hashmap, name)) || e->type != type) + return NULL; + + return e; +} + +const pa_autoload_entry* pa_autoload_get_by_index(pa_core *c, uint32_t idx) { + pa_autoload_entry *e; + assert(c && idx != PA_IDXSET_INVALID); + + if (!c->autoload_idxset || !(e = pa_idxset_get_by_index(c->autoload_idxset, idx))) + return NULL; + + return e; +} diff --git a/src/pulsecore/autoload.h b/src/pulsecore/autoload.h new file mode 100644 index 00000000..65bdd6da --- /dev/null +++ b/src/pulsecore/autoload.h @@ -0,0 +1,58 @@ +#ifndef fooautoloadhfoo +#define fooautoloadhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/namereg.h> + +/* Using the autoloading facility, modules by be loaded on-demand and + * synchronously. The user may register a "ghost sink" or "ghost + * source". Whenever this sink/source is requested but not available a + * specified module is loaded. */ + +/* An autoload entry, or "ghost" sink/source */ +typedef struct pa_autoload_entry { + pa_core *core; + uint32_t index; + char *name; + pa_namereg_type_t type; /* Type of the autoload entry */ + int in_action; /* Currently loaded */ + char *module, *argument; +} pa_autoload_entry; + +/* Add a new autoload entry of the given time, with the speicified + * sink/source name, module name and argument. Return the entry's + * index in *index */ +int pa_autoload_add(pa_core *c, const char*name, pa_namereg_type_t type, const char*module, const char *argument, uint32_t *idx); + +/* Free all autoload entries */ +void pa_autoload_free(pa_core *c); +int pa_autoload_remove_by_name(pa_core *c, const char*name, pa_namereg_type_t type); +int pa_autoload_remove_by_index(pa_core *c, uint32_t idx); + +/* Request an autoload entry by its name, effectively causing a module to be loaded */ +void pa_autoload_request(pa_core *c, const char *name, pa_namereg_type_t type); + +const pa_autoload_entry* pa_autoload_get_by_name(pa_core *c, const char*name, pa_namereg_type_t type); +const pa_autoload_entry* pa_autoload_get_by_index(pa_core *c, uint32_t idx); + +#endif diff --git a/src/pulsecore/cli-command.c b/src/pulsecore/cli-command.c new file mode 100644 index 00000000..4ba3e0af --- /dev/null +++ b/src/pulsecore/cli-command.c @@ -0,0 +1,947 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <stdlib.h> +#include <errno.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/module.h> +#include <pulsecore/sink.h> +#include <pulsecore/source.h> +#include <pulsecore/client.h> +#include <pulsecore/sink-input.h> +#include <pulsecore/source-output.h> +#include <pulsecore/tokenizer.h> +#include <pulsecore/strbuf.h> +#include <pulsecore/namereg.h> +#include <pulsecore/cli-text.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/sound-file.h> +#include <pulsecore/play-memchunk.h> +#include <pulsecore/autoload.h> +#include <pulsecore/sound-file-stream.h> +#include <pulsecore/props.h> +#include <pulsecore/core-util.h> +#include <pulsecore/core-error.h> + +#include "cli-command.h" + +struct command { + const char *name; + int (*proc) (pa_core *c, pa_tokenizer*t, pa_strbuf *buf, int *fail); + const char *help; + unsigned args; +}; + +#define INCLUDE_META ".include" +#define FAIL_META ".fail" +#define NOFAIL_META ".nofail" + +/* Prototypes for all available commands */ +static int pa_cli_command_exit(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_help(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_modules(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_clients(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_sinks(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_sources(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_sink_inputs(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_source_outputs(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_stat(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_info(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_load(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_unload(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_sink_volume(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_sink_input_volume(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_source_volume(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_sink_mute(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_source_mute(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_sink_default(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_source_default(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_kill_client(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_kill_sink_input(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_kill_source_output(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_scache_play(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_scache_remove(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_scache_list(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_scache_load(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_scache_load_dir(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_play_file(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_autoload_list(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_autoload_add(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_autoload_remove(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_dump(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); +static int pa_cli_command_list_props(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail); + + +/* A method table for all available commands */ + +static const struct command commands[] = { + { "exit", pa_cli_command_exit, "Terminate the daemon", 1 }, + { "help", pa_cli_command_help, "Show this help", 1 }, + { "list-modules", pa_cli_command_modules, "List loaded modules", 1 }, + { "list-sinks", pa_cli_command_sinks, "List loaded sinks", 1 }, + { "list-sources", pa_cli_command_sources, "List loaded sources", 1 }, + { "list-clients", pa_cli_command_clients, "List loaded clients", 1 }, + { "list-sink-inputs", pa_cli_command_sink_inputs, "List sink inputs", 1 }, + { "list-source-outputs", pa_cli_command_source_outputs, "List source outputs", 1 }, + { "stat", pa_cli_command_stat, "Show memory block statistics", 1 }, + { "info", pa_cli_command_info, "Show comprehensive status", 1 }, + { "ls", pa_cli_command_info, NULL, 1 }, + { "list", pa_cli_command_info, NULL, 1 }, + { "load-module", pa_cli_command_load, "Load a module (args: name, arguments)", 3}, + { "unload-module", pa_cli_command_unload, "Unload a module (args: index)", 2}, + { "set-sink-volume", pa_cli_command_sink_volume, "Set the volume of a sink (args: index|name, volume)", 3}, + { "set-sink-input-volume", pa_cli_command_sink_input_volume, "Set the volume of a sink input (args: index|name, volume)", 3}, + { "set-source-volume", pa_cli_command_source_volume, "Set the volume of a source (args: index|name, volume)", 3}, + { "set-sink-mute", pa_cli_command_sink_mute, "Set the mute switch of a sink (args: index|name, mute)", 3}, + { "set-source-mute", pa_cli_command_source_mute, "Set the mute switch of a source (args: index|name, mute)", 3}, + { "set-default-sink", pa_cli_command_sink_default, "Set the default sink (args: index|name)", 2}, + { "set-default-source", pa_cli_command_source_default, "Set the default source (args: index|name)", 2}, + { "kill-client", pa_cli_command_kill_client, "Kill a client (args: index)", 2}, + { "kill-sink-input", pa_cli_command_kill_sink_input, "Kill a sink input (args: index)", 2}, + { "kill-source-output", pa_cli_command_kill_source_output, "Kill a source output (args: index)", 2}, + { "list-samples", pa_cli_command_scache_list, "List all entries in the sample cache", 1}, + { "play-sample", pa_cli_command_scache_play, "Play a sample from the sample cache (args: name, sink|index)", 3}, + { "remove-sample", pa_cli_command_scache_remove, "Remove a sample from the sample cache (args: name)", 2}, + { "load-sample", pa_cli_command_scache_load, "Load a sound file into the sample cache (args: name, filename)", 3}, + { "load-sample-lazy", pa_cli_command_scache_load, "Lazily load a sound file into the sample cache (args: name, filename)", 3}, + { "load-sample-dir-lazy", pa_cli_command_scache_load_dir, "Lazily load all files in a directory into the sample cache (args: pathname)", 2}, + { "play-file", pa_cli_command_play_file, "Play a sound file (args: filename, sink|index)", 3}, + { "list-autoload", pa_cli_command_autoload_list, "List autoload entries", 1}, + { "add-autoload-sink", pa_cli_command_autoload_add, "Add autoload entry for a sink (args: sink, module name, arguments)", 4}, + { "add-autoload-source", pa_cli_command_autoload_add, "Add autoload entry for a source (args: source, module name, arguments)", 4}, + { "remove-autoload-sink", pa_cli_command_autoload_remove, "Remove autoload entry for a sink (args: name)", 2}, + { "remove-autoload-source", pa_cli_command_autoload_remove, "Remove autoload entry for a source (args: name)", 2}, + { "dump", pa_cli_command_dump, "Dump daemon configuration", 1}, + { "list-props", pa_cli_command_list_props, NULL, 1}, + { NULL, NULL, NULL, 0 } +}; + +static const char whitespace[] = " \t\n\r"; +static const char linebreak[] = "\n\r"; + +static uint32_t parse_index(const char *n) { + uint32_t idx; + + if (pa_atou(n, &idx) < 0) + return (uint32_t) PA_IDXSET_INVALID; + + return idx; +} + +static int pa_cli_command_exit(pa_core *c, pa_tokenizer *t, PA_GCC_UNUSED pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + assert(c && c->mainloop && t); + c->mainloop->quit(c->mainloop, 0); + return 0; +} + +static int pa_cli_command_help(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const struct command*command; + assert(c && t && buf); + + pa_strbuf_puts(buf, "Available commands:\n"); + + for (command = commands; command->name; command++) + if (command->help) + pa_strbuf_printf(buf, " %-25s %s\n", command->name, command->help); + return 0; +} + +static int pa_cli_command_modules(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_module_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_clients(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_client_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_sinks(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_sink_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_sources(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_source_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_sink_inputs(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_sink_input_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_source_outputs(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_source_output_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_stat(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char s[256]; + assert(c && t); + + pa_bytes_snprint(s, sizeof(s), c->memblock_stat->total_size); + pa_strbuf_printf(buf, "Memory blocks currently allocated: %u, size: %s.\n", + c->memblock_stat->total, + s); + + pa_bytes_snprint(s, sizeof(s), c->memblock_stat->allocated_size); + pa_strbuf_printf(buf, "Memory blocks allocated during the whole lifetime: %u, size: %s.\n", + c->memblock_stat->allocated, + s); + + pa_bytes_snprint(s, sizeof(s), pa_scache_total_size(c)); + pa_strbuf_printf(buf, "Total sample cache size: %s.\n", s); + + pa_sample_spec_snprint(s, sizeof(s), &c->default_sample_spec); + pa_strbuf_printf(buf, "Default sample spec: %s\n", s); + + pa_strbuf_printf(buf, "Default sink name: %s\n" + "Default source name: %s\n", + pa_namereg_get_default_sink_name(c), + pa_namereg_get_default_source_name(c)); + + return 0; +} + +static int pa_cli_command_info(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + assert(c && t); + pa_cli_command_stat(c, t, buf, fail); + pa_cli_command_modules(c, t, buf, fail); + pa_cli_command_sinks(c, t, buf, fail); + pa_cli_command_sources(c, t, buf, fail); + pa_cli_command_clients(c, t, buf, fail); + pa_cli_command_sink_inputs(c, t, buf, fail); + pa_cli_command_source_outputs(c, t, buf, fail); + pa_cli_command_scache_list(c, t, buf, fail); + pa_cli_command_autoload_list(c, t, buf, fail); + return 0; +} + +static int pa_cli_command_load(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + pa_module *m; + const char *name; + assert(c && t); + + if (!(name = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify the module name and optionally arguments.\n"); + return -1; + } + + if (!(m = pa_module_load(c, name, pa_tokenizer_get(t, 2)))) { + pa_strbuf_puts(buf, "Module load failed.\n"); + return -1; + } + + return 0; +} + +static int pa_cli_command_unload(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + pa_module *m; + uint32_t idx; + const char *i; + char *e; + assert(c && t); + + if (!(i = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify the module index.\n"); + return -1; + } + + idx = (uint32_t) strtoul(i, &e, 10); + if (*e || !(m = pa_idxset_get_by_index(c->modules, idx))) { + pa_strbuf_puts(buf, "Invalid module index.\n"); + return -1; + } + + pa_module_unload_request(m); + return 0; +} + +static int pa_cli_command_sink_volume(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n, *v; + pa_sink *sink; + uint32_t volume; + pa_cvolume cvolume; + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a sink either by its name or its index.\n"); + return -1; + } + + if (!(v = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a volume >= 0. (0 is muted, 0x100 is normal volume)\n"); + return -1; + } + + if (pa_atou(v, &volume) < 0) { + pa_strbuf_puts(buf, "Failed to parse volume.\n"); + return -1; + } + + if (!(sink = pa_namereg_get(c, n, PA_NAMEREG_SINK, 1))) { + pa_strbuf_puts(buf, "No sink found by this name or index.\n"); + return -1; + } + + pa_cvolume_set(&cvolume, sink->sample_spec.channels, volume); + pa_sink_set_volume(sink, PA_MIXER_HARDWARE, &cvolume); + return 0; +} + +static int pa_cli_command_sink_input_volume(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n, *v; + pa_sink_input *si; + pa_volume_t volume; + pa_cvolume cvolume; + uint32_t idx; + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a sink input by its index.\n"); + return -1; + } + + if ((idx = parse_index(n)) == PA_IDXSET_INVALID) { + pa_strbuf_puts(buf, "Failed to parse index.\n"); + return -1; + } + + if (!(v = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a volume >= 0. (0 is muted, 0x100 is normal volume)\n"); + return -1; + } + + if (pa_atou(v, &volume) < 0) { + pa_strbuf_puts(buf, "Failed to parse volume.\n"); + return -1; + } + + if (!(si = pa_idxset_get_by_index(c->sink_inputs, (uint32_t) idx))) { + pa_strbuf_puts(buf, "No sink input found with this index.\n"); + return -1; + } + + pa_cvolume_set(&cvolume, si->sample_spec.channels, volume); + pa_sink_input_set_volume(si, &cvolume); + return 0; +} + +static int pa_cli_command_source_volume(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n, *v; + pa_source *source; + uint32_t volume; + pa_cvolume cvolume; + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a source either by its name or its index.\n"); + return -1; + } + + if (!(v = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a volume >= 0. (0 is muted, 0x100 is normal volume)\n"); + return -1; + } + + if (pa_atou(v, &volume) < 0) { + pa_strbuf_puts(buf, "Failed to parse volume.\n"); + return -1; + } + + if (!(source = pa_namereg_get(c, n, PA_NAMEREG_SOURCE, 1))) { + pa_strbuf_puts(buf, "No source found by this name or index.\n"); + return -1; + } + + pa_cvolume_set(&cvolume, source->sample_spec.channels, volume); + pa_source_set_volume(source, PA_MIXER_HARDWARE, &cvolume); + return 0; +} + +static int pa_cli_command_sink_mute(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n, *m; + pa_sink *sink; + int mute; + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a sink either by its name or its index.\n"); + return -1; + } + + if (!(m = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a mute switch setting (0/1).\n"); + return -1; + } + + if (pa_atoi(m, &mute) < 0) { + pa_strbuf_puts(buf, "Failed to parse mute switch.\n"); + return -1; + } + + if (!(sink = pa_namereg_get(c, n, PA_NAMEREG_SINK, 1))) { + pa_strbuf_puts(buf, "No sink found by this name or index.\n"); + return -1; + } + + pa_sink_set_mute(sink, PA_MIXER_HARDWARE, mute); + return 0; +} + +static int pa_cli_command_source_mute(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n, *m; + pa_source *source; + int mute; + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a source either by its name or its index.\n"); + return -1; + } + + if (!(m = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a mute switch setting (0/1).\n"); + return -1; + } + + if (pa_atoi(m, &mute) < 0) { + pa_strbuf_puts(buf, "Failed to parse mute switch.\n"); + return -1; + } + + if (!(source = pa_namereg_get(c, n, PA_NAMEREG_SOURCE, 1))) { + pa_strbuf_puts(buf, "No sink found by this name or index.\n"); + return -1; + } + + pa_source_set_mute(source, PA_MIXER_HARDWARE, mute); + return 0; +} + +static int pa_cli_command_sink_default(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n; + assert(c && t); + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a sink either by its name or its index.\n"); + return -1; + } + + pa_namereg_set_default(c, n, PA_NAMEREG_SINK); + return 0; +} + +static int pa_cli_command_source_default(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n; + assert(c && t); + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a source either by its name or its index.\n"); + return -1; + } + + pa_namereg_set_default(c, n, PA_NAMEREG_SOURCE); + return 0; +} + +static int pa_cli_command_kill_client(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n; + pa_client *client; + uint32_t idx; + assert(c && t); + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a client by its index.\n"); + return -1; + } + + if ((idx = parse_index(n)) == PA_IDXSET_INVALID) { + pa_strbuf_puts(buf, "Failed to parse index.\n"); + return -1; + } + + if (!(client = pa_idxset_get_by_index(c->clients, idx))) { + pa_strbuf_puts(buf, "No client found by this index.\n"); + return -1; + } + + pa_client_kill(client); + return 0; +} + +static int pa_cli_command_kill_sink_input(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n; + pa_sink_input *sink_input; + uint32_t idx; + assert(c && t); + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a sink input by its index.\n"); + return -1; + } + + if ((idx = parse_index(n)) == PA_IDXSET_INVALID) { + pa_strbuf_puts(buf, "Failed to parse index.\n"); + return -1; + } + + if (!(sink_input = pa_idxset_get_by_index(c->sink_inputs, idx))) { + pa_strbuf_puts(buf, "No sink input found by this index.\n"); + return -1; + } + + pa_sink_input_kill(sink_input); + return 0; +} + +static int pa_cli_command_kill_source_output(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + const char *n; + pa_source_output *source_output; + uint32_t idx; + assert(c && t); + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a source output by its index.\n"); + return -1; + } + + if ((idx = parse_index(n)) == PA_IDXSET_INVALID) { + pa_strbuf_puts(buf, "Failed to parse index.\n"); + return -1; + } + + if (!(source_output = pa_idxset_get_by_index(c->source_outputs, idx))) { + pa_strbuf_puts(buf, "No source output found by this index.\n"); + return -1; + } + + pa_source_output_kill(source_output); + return 0; +} + +static int pa_cli_command_scache_list(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_scache_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_scache_play(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + const char *n, *sink_name; + pa_sink *sink; + assert(c && t && buf && fail); + + if (!(n = pa_tokenizer_get(t, 1)) || !(sink_name = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a sample name and a sink name.\n"); + return -1; + } + + if (!(sink = pa_namereg_get(c, sink_name, PA_NAMEREG_SINK, 1))) { + pa_strbuf_puts(buf, "No sink by that name.\n"); + return -1; + } + + if (pa_scache_play_item(c, n, sink, PA_VOLUME_NORM) < 0) { + pa_strbuf_puts(buf, "Failed to play sample.\n"); + return -1; + } + + return 0; +} + +static int pa_cli_command_scache_remove(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + const char *n; + assert(c && t && buf && fail); + + if (!(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a sample name.\n"); + return -1; + } + + if (pa_scache_remove_item(c, n) < 0) { + pa_strbuf_puts(buf, "Failed to remove sample.\n"); + return -1; + } + + return 0; +} + +static int pa_cli_command_scache_load(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + const char *fname, *n; + int r; + assert(c && t && buf && fail); + + if (!(fname = pa_tokenizer_get(t, 2)) || !(n = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a file name and a sample name.\n"); + return -1; + } + + if (strstr(pa_tokenizer_get(t, 0), "lazy")) + r = pa_scache_add_file_lazy(c, n, fname, NULL); + else + r = pa_scache_add_file(c, n, fname, NULL); + + if (r < 0) + pa_strbuf_puts(buf, "Failed to load sound file.\n"); + + return 0; +} + +static int pa_cli_command_scache_load_dir(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + const char *pname; + assert(c && t && buf && fail); + + if (!(pname = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a path name.\n"); + return -1; + } + + if (pa_scache_add_directory_lazy(c, pname) < 0) { + pa_strbuf_puts(buf, "Failed to load directory.\n"); + return -1; + } + + return 0; +} + +static int pa_cli_command_play_file(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + const char *fname, *sink_name; + pa_sink *sink; + assert(c && t && buf && fail); + + if (!(fname = pa_tokenizer_get(t, 1)) || !(sink_name = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a file name and a sink name.\n"); + return -1; + } + + if (!(sink = pa_namereg_get(c, sink_name, PA_NAMEREG_SINK, 1))) { + pa_strbuf_puts(buf, "No sink by that name.\n"); + return -1; + } + + + return pa_play_file(sink, fname, NULL); +} + +static int pa_cli_command_autoload_add(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + const char *a, *b; + assert(c && t && buf && fail); + + if (!(a = pa_tokenizer_get(t, 1)) || !(b = pa_tokenizer_get(t, 2))) { + pa_strbuf_puts(buf, "You need to specify a device name, a filename or a module name and optionally module arguments\n"); + return -1; + } + + pa_autoload_add(c, a, strstr(pa_tokenizer_get(t, 0), "sink") ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, b, pa_tokenizer_get(t, 3), NULL); + + return 0; +} + +static int pa_cli_command_autoload_remove(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, int *fail) { + const char *name; + assert(c && t && buf && fail); + + if (!(name = pa_tokenizer_get(t, 1))) { + pa_strbuf_puts(buf, "You need to specify a device name\n"); + return -1; + } + + if (pa_autoload_remove_by_name(c, name, strstr(pa_tokenizer_get(t, 0), "sink") ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE) < 0) { + pa_strbuf_puts(buf, "Failed to remove autload entry\n"); + return -1; + } + + return 0; +} + +static int pa_cli_command_autoload_list(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + char *s; + assert(c && t); + s = pa_autoload_list_to_string(c); + assert(s); + pa_strbuf_puts(buf, s); + pa_xfree(s); + return 0; +} + +static int pa_cli_command_list_props(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + assert(c && t); + pa_property_dump(c, buf); + return 0; +} + +static int pa_cli_command_dump(pa_core *c, pa_tokenizer *t, pa_strbuf *buf, PA_GCC_UNUSED int *fail) { + pa_module *m; + pa_sink *sink; + pa_source *source; + int nl; + const char *p; + uint32_t idx; + char txt[256]; + time_t now; + void *i; + pa_autoload_entry *a; + + assert(c && t); + + time(&now); + +#ifdef HAVE_CTIME_R + pa_strbuf_printf(buf, "### Configuration dump generated at %s\n", ctime_r(&now, txt)); +#else + pa_strbuf_printf(buf, "### Configuration dump generated at %s\n", ctime(&now)); +#endif + + + for (m = pa_idxset_first(c->modules, &idx); m; m = pa_idxset_next(c->modules, &idx)) { + if (m->auto_unload) + continue; + + pa_strbuf_printf(buf, "load-module %s", m->name); + + if (m->argument) + pa_strbuf_printf(buf, " %s", m->argument); + + pa_strbuf_puts(buf, "\n"); + } + + nl = 0; + + for (sink = pa_idxset_first(c->sinks, &idx); sink; sink = pa_idxset_next(c->sinks, &idx)) { + if (sink->owner && sink->owner->auto_unload) + continue; + + if (!nl) { + pa_strbuf_puts(buf, "\n"); + nl = 1; + } + + pa_strbuf_printf(buf, "set-sink-volume %s 0x%03x\n", sink->name, pa_cvolume_avg(pa_sink_get_volume(sink, PA_MIXER_HARDWARE))); + pa_strbuf_printf(buf, "set-sink-mute %s %d\n", sink->name, pa_sink_get_mute(sink, PA_MIXER_HARDWARE)); + } + + for (source = pa_idxset_first(c->sources, &idx); source; source = pa_idxset_next(c->sources, &idx)) { + if (source->owner && source->owner->auto_unload) + continue; + + if (!nl) { + pa_strbuf_puts(buf, "\n"); + nl = 1; + } + + pa_strbuf_printf(buf, "set-source-volume %s 0x%03x\n", source->name, pa_cvolume_avg(pa_source_get_volume(source, PA_MIXER_HARDWARE))); + pa_strbuf_printf(buf, "set-source-mute %s %d\n", source->name, pa_source_get_mute(source, PA_MIXER_HARDWARE)); + } + + + if (c->autoload_hashmap) { + nl = 0; + + i = NULL; + while ((a = pa_hashmap_iterate(c->autoload_hashmap, &i, NULL))) { + + if (!nl) { + pa_strbuf_puts(buf, "\n"); + nl = 1; + } + + pa_strbuf_printf(buf, "add-autoload-%s %s %s", a->type == PA_NAMEREG_SINK ? "sink" : "source", a->name, a->module); + + if (a->argument) + pa_strbuf_printf(buf, " %s", a->argument); + + pa_strbuf_puts(buf, "\n"); + } + } + + nl = 0; + + if ((p = pa_namereg_get_default_sink_name(c))) { + if (!nl) { + pa_strbuf_puts(buf, "\n"); + nl = 1; + } + pa_strbuf_printf(buf, "set-default-sink %s\n", p); + } + + if ((p = pa_namereg_get_default_source_name(c))) { + if (!nl) { + pa_strbuf_puts(buf, "\n"); + nl = 1; + } + pa_strbuf_printf(buf, "set-default-source %s\n", p); + } + + pa_strbuf_puts(buf, "\n### EOF\n"); + + return 0; +} + + +int pa_cli_command_execute_line(pa_core *c, const char *s, pa_strbuf *buf, int *fail) { + const char *cs; + + cs = s+strspn(s, whitespace); + + if (*cs == '#' || !*cs) + return 0; + else if (*cs == '.') { + if (!strcmp(cs, FAIL_META)) + *fail = 1; + else if (!strcmp(cs, NOFAIL_META)) + *fail = 0; + else { + size_t l; + l = strcspn(cs, whitespace); + + if (l == sizeof(INCLUDE_META)-1 && !strncmp(cs, INCLUDE_META, l)) { + const char *filename = cs+l+strspn(cs+l, whitespace); + + if (pa_cli_command_execute_file(c, filename, buf, fail) < 0) + if (*fail) return -1; + } else { + pa_strbuf_printf(buf, "Invalid meta command: %s\n", cs); + if (*fail) return -1; + } + } + } else { + const struct command*command; + int unknown = 1; + size_t l; + + l = strcspn(cs, whitespace); + + for (command = commands; command->name; command++) + if (strlen(command->name) == l && !strncmp(cs, command->name, l)) { + int ret; + pa_tokenizer *t = pa_tokenizer_new(cs, command->args); + assert(t); + ret = command->proc(c, t, buf, fail); + pa_tokenizer_free(t); + unknown = 0; + + if (ret < 0 && *fail) + return -1; + + break; + } + + if (unknown) { + pa_strbuf_printf(buf, "Unknown command: %s\n", cs); + if (*fail) + return -1; + } + } + + return 0; +} + +int pa_cli_command_execute_file(pa_core *c, const char *fn, pa_strbuf *buf, int *fail) { + char line[256]; + FILE *f = NULL; + int ret = -1; + assert(c && fn && buf); + + if (!(f = fopen(fn, "r"))) { + pa_strbuf_printf(buf, "open('%s') failed: %s\n", fn, pa_cstrerror(errno)); + if (!*fail) + ret = 0; + goto fail; + } + + while (fgets(line, sizeof(line), f)) { + char *e = line + strcspn(line, linebreak); + *e = 0; + + if (pa_cli_command_execute_line(c, line, buf, fail) < 0 && *fail) + goto fail; + } + + ret = 0; + +fail: + if (f) + fclose(f); + + return ret; +} + +int pa_cli_command_execute(pa_core *c, const char *s, pa_strbuf *buf, int *fail) { + const char *p; + assert(c && s && buf && fail); + + p = s; + while (*p) { + size_t l = strcspn(p, linebreak); + char *line = pa_xstrndup(p, l); + + if (pa_cli_command_execute_line(c, line, buf, fail) < 0&& *fail) { + pa_xfree(line); + return -1; + } + pa_xfree(line); + + p += l; + p += strspn(p, linebreak); + } + + return 0; +} diff --git a/src/pulsecore/cli-command.h b/src/pulsecore/cli-command.h new file mode 100644 index 00000000..c56c3ca0 --- /dev/null +++ b/src/pulsecore/cli-command.h @@ -0,0 +1,40 @@ +#ifndef fooclicommandhfoo +#define fooclicommandhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/strbuf.h> +#include <pulsecore/core.h> + +/* Execute a single CLI command. Write the results to the string + * buffer *buf. If *fail is non-zero the function will return -1 when + * one or more of the executed commands failed. *fail + * may be modified by the function call. */ +int pa_cli_command_execute_line(pa_core *c, const char *s, pa_strbuf *buf, int *fail); + +/* Execute a whole file of CLI commands */ +int pa_cli_command_execute_file(pa_core *c, const char *fn, pa_strbuf *buf, int *fail); + +/* Split the specified string into lines and run pa_cli_command_execute_line() for each. */ +int pa_cli_command_execute(pa_core *c, const char *s, pa_strbuf *buf, int *fail); + +#endif diff --git a/src/pulsecore/cli-text.c b/src/pulsecore/cli-text.c new file mode 100644 index 00000000..eecf68ff --- /dev/null +++ b/src/pulsecore/cli-text.c @@ -0,0 +1,387 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <string.h> + +#include <pulse/volume.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/module.h> +#include <pulsecore/client.h> +#include <pulsecore/sink.h> +#include <pulsecore/source.h> +#include <pulsecore/sink-input.h> +#include <pulsecore/source-output.h> +#include <pulsecore/strbuf.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/autoload.h> + +#include "cli-text.h" + +char *pa_module_list_to_string(pa_core *c) { + pa_strbuf *s; + pa_module *m; + uint32_t idx = PA_IDXSET_INVALID; + assert(c); + + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u module(s) loaded.\n", pa_idxset_size(c->modules)); + + for (m = pa_idxset_first(c->modules, &idx); m; m = pa_idxset_next(c->modules, &idx)) + pa_strbuf_printf(s, " index: %u\n\tname: <%s>\n\targument: <%s>\n\tused: %i\n\tauto unload: %s\n", m->index, m->name, m->argument, m->n_used, m->auto_unload ? "yes" : "no"); + + return pa_strbuf_tostring_free(s); +} + +char *pa_client_list_to_string(pa_core *c) { + pa_strbuf *s; + pa_client *client; + uint32_t idx = PA_IDXSET_INVALID; + assert(c); + + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u client(s) logged in.\n", pa_idxset_size(c->clients)); + + for (client = pa_idxset_first(c->clients, &idx); client; client = pa_idxset_next(c->clients, &idx)) { + pa_strbuf_printf(s, " index: %u\n\tname: <%s>\n\tdriver: <%s>\n", client->index, client->name, client->driver); + + if (client->owner) + pa_strbuf_printf(s, "\towner module: <%u>\n", client->owner->index); + } + + return pa_strbuf_tostring_free(s); +} + +char *pa_sink_list_to_string(pa_core *c) { + pa_strbuf *s; + pa_sink *sink; + uint32_t idx = PA_IDXSET_INVALID; + assert(c); + + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u sink(s) available.\n", pa_idxset_size(c->sinks)); + + for (sink = pa_idxset_first(c->sinks, &idx); sink; sink = pa_idxset_next(c->sinks, &idx)) { + char ss[PA_SAMPLE_SPEC_SNPRINT_MAX], cv[PA_CVOLUME_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX]; + + pa_strbuf_printf( + s, + " %c index: %u\n" + "\tname: <%s>\n" + "\tdriver: <%s>\n" + "\tvolume: <%s>\n" + "\tlatency: <%0.0f usec>\n" + "\tmonitor_source: <%u>\n" + "\tsample spec: <%s>\n" + "\tchannel map: <%s>\n", + c->default_sink_name && !strcmp(sink->name, c->default_sink_name) ? '*' : ' ', + sink->index, sink->name, + sink->driver, + pa_cvolume_snprint(cv, sizeof(cv), pa_sink_get_volume(sink, PA_MIXER_HARDWARE)), + (double) pa_sink_get_latency(sink), + sink->monitor_source->index, + pa_sample_spec_snprint(ss, sizeof(ss), &sink->sample_spec), + pa_channel_map_snprint(cm, sizeof(cm), &sink->channel_map)); + + if (sink->owner) + pa_strbuf_printf(s, "\towner module: <%u>\n", sink->owner->index); + if (sink->description) + pa_strbuf_printf(s, "\tdescription: <%s>\n", sink->description); + } + + return pa_strbuf_tostring_free(s); +} + +char *pa_source_list_to_string(pa_core *c) { + pa_strbuf *s; + pa_source *source; + uint32_t idx = PA_IDXSET_INVALID; + assert(c); + + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u source(s) available.\n", pa_idxset_size(c->sources)); + + for (source = pa_idxset_first(c->sources, &idx); source; source = pa_idxset_next(c->sources, &idx)) { + char ss[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX]; + + + pa_strbuf_printf( + s, + " %c index: %u\n" + "\tname: <%s>\n" + "\tdriver: <%s>\n" + "\tlatency: <%0.0f usec>\n" + "\tsample spec: <%s>\n" + "\tchannel map: <%s>\n", + c->default_source_name && !strcmp(source->name, c->default_source_name) ? '*' : ' ', + source->index, + source->name, + source->driver, + (double) pa_source_get_latency(source), + pa_sample_spec_snprint(ss, sizeof(ss), &source->sample_spec), + pa_channel_map_snprint(cm, sizeof(cm), &source->channel_map)); + + if (source->monitor_of) + pa_strbuf_printf(s, "\tmonitor_of: <%u>\n", source->monitor_of->index); + if (source->owner) + pa_strbuf_printf(s, "\towner module: <%u>\n", source->owner->index); + if (source->description) + pa_strbuf_printf(s, "\tdescription: <%s>\n", source->description); + } + + return pa_strbuf_tostring_free(s); +} + + +char *pa_source_output_list_to_string(pa_core *c) { + pa_strbuf *s; + pa_source_output *o; + uint32_t idx = PA_IDXSET_INVALID; + static const char* const state_table[] = { + "RUNNING", + "CORKED", + "DISCONNECTED" + }; + assert(c); + + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u source outputs(s) available.\n", pa_idxset_size(c->source_outputs)); + + for (o = pa_idxset_first(c->source_outputs, &idx); o; o = pa_idxset_next(c->source_outputs, &idx)) { + char ss[PA_SAMPLE_SPEC_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX]; + + assert(o->source); + + pa_strbuf_printf( + s, + " index: %u\n" + "\tname: '%s'\n" + "\tdriver: <%s>\n" + "\tstate: %s\n" + "\tsource: <%u> '%s'\n" + "\tsample spec: <%s>\n" + "\tchannel map: <%s>\n" + "\tresample method: %s\n", + o->index, + o->name, + o->driver, + state_table[o->state], + o->source->index, o->source->name, + pa_sample_spec_snprint(ss, sizeof(ss), &o->sample_spec), + pa_channel_map_snprint(cm, sizeof(cm), &o->channel_map), + pa_resample_method_to_string(pa_source_output_get_resample_method(o))); + if (o->owner) + pa_strbuf_printf(s, "\towner module: <%u>\n", o->owner->index); + if (o->client) + pa_strbuf_printf(s, "\tclient: <%u> '%s'\n", o->client->index, o->client->name); + } + + return pa_strbuf_tostring_free(s); +} + +char *pa_sink_input_list_to_string(pa_core *c) { + pa_strbuf *s; + pa_sink_input *i; + uint32_t idx = PA_IDXSET_INVALID; + static const char* const state_table[] = { + "RUNNING", + "CORKED", + "DISCONNECTED" + }; + + assert(c); + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u sink input(s) available.\n", pa_idxset_size(c->sink_inputs)); + + for (i = pa_idxset_first(c->sink_inputs, &idx); i; i = pa_idxset_next(c->sink_inputs, &idx)) { + char ss[PA_SAMPLE_SPEC_SNPRINT_MAX], cv[PA_CVOLUME_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX]; + + assert(i->sink); + + pa_strbuf_printf( + s, + " index: %u\n" + "\tname: <%s>\n" + "\tdriver: <%s>\n" + "\tstate: %s\n" + "\tsink: <%u> '%s'\n" + "\tvolume: <%s>\n" + "\tlatency: <%0.0f usec>\n" + "\tsample spec: <%s>\n" + "\tchannel map: <%s>\n" + "\tresample method: %s\n", + i->index, + i->name, + i->driver, + state_table[i->state], + i->sink->index, i->sink->name, + pa_cvolume_snprint(cv, sizeof(cv), pa_sink_input_get_volume(i)), + (double) pa_sink_input_get_latency(i), + pa_sample_spec_snprint(ss, sizeof(ss), &i->sample_spec), + pa_channel_map_snprint(cm, sizeof(cm), &i->channel_map), + pa_resample_method_to_string(pa_sink_input_get_resample_method(i))); + + if (i->owner) + pa_strbuf_printf(s, "\towner module: <%u>\n", i->owner->index); + if (i->client) + pa_strbuf_printf(s, "\tclient: <%u> '%s'\n", i->client->index, i->client->name); + } + + return pa_strbuf_tostring_free(s); +} + +char *pa_scache_list_to_string(pa_core *c) { + pa_strbuf *s; + assert(c); + + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u cache entries available.\n", c->scache ? pa_idxset_size(c->scache) : 0); + + if (c->scache) { + pa_scache_entry *e; + uint32_t idx = PA_IDXSET_INVALID; + + for (e = pa_idxset_first(c->scache, &idx); e; e = pa_idxset_next(c->scache, &idx)) { + double l = 0; + char ss[PA_SAMPLE_SPEC_SNPRINT_MAX] = "n/a", cv[PA_CVOLUME_SNPRINT_MAX], cm[PA_CHANNEL_MAP_SNPRINT_MAX] = "n/a"; + + if (e->memchunk.memblock) { + pa_sample_spec_snprint(ss, sizeof(ss), &e->sample_spec); + pa_channel_map_snprint(cm, sizeof(cm), &e->channel_map); + l = (double) e->memchunk.length / pa_bytes_per_second(&e->sample_spec); + } + + pa_strbuf_printf( + s, + " name: <%s>\n" + "\tindex: <%u>\n" + "\tsample spec: <%s>\n" + "\tchannel map: <%s>\n" + "\tlength: <%lu>\n" + "\tduration: <%0.1fs>\n" + "\tvolume: <%s>\n" + "\tlazy: %s\n" + "\tfilename: %s\n", + e->name, + e->index, + ss, + cm, + (long unsigned)(e->memchunk.memblock ? e->memchunk.length : 0), + l, + pa_cvolume_snprint(cv, sizeof(cv), &e->volume), + e->lazy ? "yes" : "no", + e->filename ? e->filename : "n/a"); + } + } + + return pa_strbuf_tostring_free(s); +} + +char *pa_autoload_list_to_string(pa_core *c) { + pa_strbuf *s; + assert(c); + + s = pa_strbuf_new(); + assert(s); + + pa_strbuf_printf(s, "%u autoload entries available.\n", c->autoload_hashmap ? pa_hashmap_size(c->autoload_hashmap) : 0); + + if (c->autoload_hashmap) { + pa_autoload_entry *e; + void *state = NULL; + + while ((e = pa_hashmap_iterate(c->autoload_hashmap, &state, NULL))) { + pa_strbuf_printf( + s, " name: <%s>\n\ttype: <%s>\n\tindex: <%u>\n\tmodule_name: <%s>\n\targuments: <%s>\n", + e->name, + e->type == PA_NAMEREG_SOURCE ? "source" : "sink", + e->index, + e->module, + e->argument); + + } + } + + return pa_strbuf_tostring_free(s); +} + +char *pa_full_status_string(pa_core *c) { + pa_strbuf *s; + int i; + + s = pa_strbuf_new(); + + for (i = 0; i < 8; i++) { + char *t = NULL; + + switch (i) { + case 0: + t = pa_sink_list_to_string(c); + break; + case 1: + t = pa_source_list_to_string(c); + break; + case 2: + t = pa_sink_input_list_to_string(c); + break; + case 3: + t = pa_source_output_list_to_string(c); + break; + case 4: + t = pa_client_list_to_string(c); + break; + case 5: + t = pa_module_list_to_string(c); + break; + case 6: + t = pa_scache_list_to_string(c); + break; + case 7: + t = pa_autoload_list_to_string(c); + break; + } + + pa_strbuf_puts(s, t); + pa_xfree(t); + } + + return pa_strbuf_tostring_free(s); +} diff --git a/src/pulsecore/cli-text.h b/src/pulsecore/cli-text.h new file mode 100644 index 00000000..cd3acdee --- /dev/null +++ b/src/pulsecore/cli-text.h @@ -0,0 +1,42 @@ +#ifndef fooclitexthfoo +#define fooclitexthfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> + +/* Some functions to generate pretty formatted listings of + * entities. The returned strings have to be freed manually. */ + +char *pa_sink_input_list_to_string(pa_core *c); +char *pa_source_output_list_to_string(pa_core *c); +char *pa_sink_list_to_string(pa_core *core); +char *pa_source_list_to_string(pa_core *c); +char *pa_client_list_to_string(pa_core *c); +char *pa_module_list_to_string(pa_core *c); +char *pa_scache_list_to_string(pa_core *c); +char *pa_autoload_list_to_string(pa_core *c); + +char *pa_full_status_string(pa_core *c); + +#endif + diff --git a/src/pulsecore/cli.c b/src/pulsecore/cli.c new file mode 100644 index 00000000..fbfa5009 --- /dev/null +++ b/src/pulsecore/cli.c @@ -0,0 +1,149 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/ioline.h> +#include <pulsecore/module.h> +#include <pulsecore/sink.h> +#include <pulsecore/source.h> +#include <pulsecore/client.h> +#include <pulsecore/sink-input.h> +#include <pulsecore/source-output.h> +#include <pulsecore/tokenizer.h> +#include <pulsecore/strbuf.h> +#include <pulsecore/namereg.h> +#include <pulsecore/cli-text.h> +#include <pulsecore/cli-command.h> +#include <pulsecore/log.h> + +#include "cli.h" + +#define PROMPT ">>> " + +struct pa_cli { + pa_core *core; + pa_ioline *line; + + void (*eof_callback)(pa_cli *c, void *userdata); + void *userdata; + + pa_client *client; + + int fail, kill_requested, defer_kill; +}; + +static void line_callback(pa_ioline *line, const char *s, void *userdata); +static void client_kill(pa_client *c); + +pa_cli* pa_cli_new(pa_core *core, pa_iochannel *io, pa_module *m) { + char cname[256]; + pa_cli *c; + assert(io); + + c = pa_xmalloc(sizeof(pa_cli)); + c->core = core; + c->line = pa_ioline_new(io); + assert(c->line); + + c->userdata = NULL; + c->eof_callback = NULL; + + pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname)); + c->client = pa_client_new(core, __FILE__, cname); + assert(c->client); + c->client->kill = client_kill; + c->client->userdata = c; + c->client->owner = m; + + pa_ioline_set_callback(c->line, line_callback, c); + pa_ioline_puts(c->line, "Welcome to pulseaudio! Use \"help\" for usage information.\n"PROMPT); + + c->fail = c->kill_requested = c->defer_kill = 0; + + return c; +} + +void pa_cli_free(pa_cli *c) { + assert(c); + pa_ioline_close(c->line); + pa_ioline_unref(c->line); + pa_client_free(c->client); + pa_xfree(c); +} + +static void client_kill(pa_client *client) { + pa_cli *c; + assert(client && client->userdata); + c = client->userdata; + + pa_log_debug(__FILE__": CLI client killed."); + if (c->defer_kill) + c->kill_requested = 1; + else { + if (c->eof_callback) + c->eof_callback(c, c->userdata); + } +} + +static void line_callback(pa_ioline *line, const char *s, void *userdata) { + pa_strbuf *buf; + pa_cli *c = userdata; + char *p; + assert(line && c); + + if (!s) { + pa_log_debug(__FILE__": CLI got EOF from user."); + if (c->eof_callback) + c->eof_callback(c, c->userdata); + + return; + } + + buf = pa_strbuf_new(); + assert(buf); + c->defer_kill++; + pa_cli_command_execute_line(c->core, s, buf, &c->fail); + c->defer_kill--; + pa_ioline_puts(line, p = pa_strbuf_tostring_free(buf)); + pa_xfree(p); + + if (c->kill_requested) { + if (c->eof_callback) + c->eof_callback(c, c->userdata); + } else + pa_ioline_puts(line, PROMPT); +} + +void pa_cli_set_eof_callback(pa_cli *c, void (*cb)(pa_cli*c, void *userdata), void *userdata) { + assert(c); + c->eof_callback = cb; + c->userdata = userdata; +} diff --git a/src/pulsecore/cli.h b/src/pulsecore/cli.h new file mode 100644 index 00000000..639fa952 --- /dev/null +++ b/src/pulsecore/cli.h @@ -0,0 +1,38 @@ +#ifndef fooclihfoo +#define fooclihfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/iochannel.h> +#include <pulsecore/core.h> +#include <pulsecore/module.h> + +typedef struct pa_cli pa_cli; + +/* Create a new command line session on the specified io channel owned by the specified module */ +pa_cli* pa_cli_new(pa_core *core, pa_iochannel *io, pa_module *m); +void pa_cli_free(pa_cli *cli); + +/* Set a callback function that is called whenever the command line session is terminated */ +void pa_cli_set_eof_callback(pa_cli *cli, void (*cb)(pa_cli*c, void *userdata), void *userdata); + +#endif diff --git a/src/pulsecore/client.c b/src/pulsecore/client.c new file mode 100644 index 00000000..bf2b13df --- /dev/null +++ b/src/pulsecore/client.c @@ -0,0 +1,96 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> + +#include "client.h" + +pa_client *pa_client_new(pa_core *core, const char *driver, const char *name) { + pa_client *c; + int r; + assert(core); + + c = pa_xmalloc(sizeof(pa_client)); + c->name = pa_xstrdup(name); + c->driver = pa_xstrdup(driver); + c->owner = NULL; + c->core = core; + + c->kill = NULL; + c->userdata = NULL; + + r = pa_idxset_put(core->clients, c, &c->index); + assert(c->index != PA_IDXSET_INVALID && r >= 0); + + pa_log_info(__FILE__": created %u \"%s\"", c->index, c->name); + pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_NEW, c->index); + + pa_core_check_quit(core); + + return c; +} + +void pa_client_free(pa_client *c) { + assert(c && c->core); + + pa_idxset_remove_by_data(c->core->clients, c, NULL); + + pa_core_check_quit(c->core); + + pa_log_info(__FILE__": freed %u \"%s\"", c->index, c->name); + pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_REMOVE, c->index); + pa_xfree(c->name); + pa_xfree(c->driver); + pa_xfree(c); +} + +void pa_client_kill(pa_client *c) { + assert(c); + if (!c->kill) { + pa_log_warn(__FILE__": kill() operation not implemented for client %u", c->index); + return; + } + + c->kill(c); +} + +void pa_client_set_name(pa_client *c, const char *name) { + assert(c); + + pa_log_info(__FILE__": client %u changed name from \"%s\" to \"%s\"", c->index, c->name, name); + + pa_xfree(c->name); + c->name = pa_xstrdup(name); + + pa_subscription_post(c->core, PA_SUBSCRIPTION_EVENT_CLIENT|PA_SUBSCRIPTION_EVENT_CHANGE, c->index); +} diff --git a/src/pulsecore/client.h b/src/pulsecore/client.h new file mode 100644 index 00000000..1e72baf7 --- /dev/null +++ b/src/pulsecore/client.h @@ -0,0 +1,57 @@ +#ifndef fooclienthfoo +#define fooclienthfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> +#include <pulsecore/module.h> + +/* Every connection to the server should have a pa_client + * attached. That way the user may generate a listing of all connected + * clients easily and kill them if he wants.*/ + +typedef struct pa_client pa_client; + +struct pa_client { + uint32_t index; + + pa_module *owner; + char *name, *driver; + pa_core *core; + + void (*kill)(pa_client *c); + void *userdata; +}; + +pa_client *pa_client_new(pa_core *c, const char *driver, const char *name); + +/* This function should be called only by the code that created the client */ +void pa_client_free(pa_client *c); + +/* Code that didn't create the client should call this function to + * request destruction of the client */ +void pa_client_kill(pa_client *c); + +/* Rename the client */ +void pa_client_set_name(pa_client *c, const char *name); + +#endif diff --git a/src/pulsecore/conf-parser.c b/src/pulsecore/conf-parser.c new file mode 100644 index 00000000..cc471ff9 --- /dev/null +++ b/src/pulsecore/conf-parser.c @@ -0,0 +1,181 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <errno.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-error.h> +#include <pulsecore/log.h> +#include <pulsecore/core-util.h> + +#include "conf-parser.h" + +#define WHITESPACE " \t\n" +#define COMMENTS "#;\n" + +/* Run the user supplied parser for an assignment */ +static int next_assignment(const char *filename, unsigned line, const pa_config_item *t, const char *lvalue, const char *rvalue, void *userdata) { + assert(filename && t && lvalue && rvalue); + + for (; t->parse; t++) + if (!strcmp(lvalue, t->lvalue)) + return t->parse(filename, line, lvalue, rvalue, t->data, userdata); + + pa_log(__FILE__": [%s:%u] Unknown lvalue '%s'.", filename, line, lvalue); + + return -1; +} + +/* Returns non-zero when c is contained in s */ +static int in_string(char c, const char *s) { + assert(s); + + for (; *s; s++) + if (*s == c) + return 1; + + return 0; +} + +/* Remove all whitepsapce from the beginning and the end of *s. *s may + * be modified. */ +static char *strip(char *s) { + char *b = s+strspn(s, WHITESPACE); + char *e, *l = NULL; + + for (e = b; *e; e++) + if (!in_string(*e, WHITESPACE)) + l = e; + + if (l) + *(l+1) = 0; + + return b; +} + +/* Parse a variable assignment line */ +static int parse_line(const char *filename, unsigned line, const pa_config_item *t, char *l, void *userdata) { + char *e, *c, *b = l+strspn(l, WHITESPACE); + + if ((c = strpbrk(b, COMMENTS))) + *c = 0; + + if (!*b) + return 0; + + if (!(e = strchr(b, '='))) { + pa_log(__FILE__": [%s:%u] Missing '='.", filename, line); + return -1; + } + + *e = 0; + e++; + + return next_assignment(filename, line, t, strip(b), strip(e), userdata); +} + +/* Go through the file and parse each line */ +int pa_config_parse(const char *filename, FILE *f, const pa_config_item *t, void *userdata) { + int r = -1; + unsigned line = 0; + int do_close = !f; + assert(filename && t); + + if (!f && !(f = fopen(filename, "r"))) { + if (errno == ENOENT) { + r = 0; + goto finish; + } + + pa_log_warn(__FILE__": WARNING: failed to open configuration file '%s': %s", + filename, pa_cstrerror(errno)); + goto finish; + } + + while (!feof(f)) { + char l[256]; + if (!fgets(l, sizeof(l), f)) { + if (feof(f)) + break; + + pa_log_warn(__FILE__": WARNING: failed to read configuration file '%s': %s", + filename, pa_cstrerror(errno)); + goto finish; + } + + if (parse_line(filename, ++line, t, l, userdata) < 0) + goto finish; + } + + r = 0; + +finish: + + if (do_close && f) + fclose(f); + + return r; +} + +int pa_config_parse_int(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) { + int *i = data; + int32_t k; + assert(filename && lvalue && rvalue && data); + + if (pa_atoi(rvalue, &k) < 0) { + pa_log(__FILE__": [%s:%u] Failed to parse numeric value: %s", filename, line, rvalue); + return -1; + } + + *i = (int) k; + return 0; +} + +int pa_config_parse_bool(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) { + int *b = data, k; + assert(filename && lvalue && rvalue && data); + + if ((k = pa_parse_boolean(rvalue)) < 0) { + pa_log(__FILE__": [%s:%u] Failed to parse boolean value: %s", filename, line, rvalue); + return -1; + } + + *b = k; + + return 0; +} + +int pa_config_parse_string(const char *filename, PA_GCC_UNUSED unsigned line, const char *lvalue, const char *rvalue, void *data, PA_GCC_UNUSED void *userdata) { + char **s = data; + assert(filename && lvalue && rvalue && data); + + pa_xfree(*s); + *s = *rvalue ? pa_xstrdup(rvalue) : NULL; + return 0; +} diff --git a/src/pulsecore/conf-parser.h b/src/pulsecore/conf-parser.h new file mode 100644 index 00000000..9c1a697a --- /dev/null +++ b/src/pulsecore/conf-parser.h @@ -0,0 +1,47 @@ +#ifndef fooconfparserhfoo +#define fooconfparserhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <stdio.h> + +/* An abstract parser for simple, line based, shallow configuration + * files consisting of variable assignments only. */ + +/* Wraps info for parsing a specific configuration variable */ +typedef struct pa_config_item { + const char *lvalue; /* name of the variable */ + int (*parse)(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata); /* Function that is called to parse the variable's value */ + void *data; /* Where to store the variable's data */ +} pa_config_item; + +/* The configuration file parsing routine. Expects a table of + * pa_config_items in *t that is terminated by an item where lvalue is + * NULL */ +int pa_config_parse(const char *filename, FILE *f, const pa_config_item *t, void *userdata); + +/* Generic parsers for integers, booleans and strings */ +int pa_config_parse_int(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata); +int pa_config_parse_bool(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata); +int pa_config_parse_string(const char *filename, unsigned line, const char *lvalue, const char *rvalue, void *data, void *userdata); + +#endif diff --git a/src/pulsecore/core-def.h b/src/pulsecore/core-def.h new file mode 100644 index 00000000..718499d1 --- /dev/null +++ b/src/pulsecore/core-def.h @@ -0,0 +1,30 @@ +#ifndef foocoredefhfoo +#define foocoredefhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef enum pa_mixer { + PA_MIXER_SOFTWARE, + PA_MIXER_HARDWARE +} pa_mixer_t; + +#endif diff --git a/src/pulsecore/core-error.c b/src/pulsecore/core-error.c new file mode 100644 index 00000000..e42070d1 --- /dev/null +++ b/src/pulsecore/core-error.c @@ -0,0 +1,205 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#ifdef HAVE_PTHREAD +#include <pthread.h> +#endif + +#ifdef HAVE_WINDOWS_H +#include <windows.h> +#endif + +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/core-util.h> +#include <pulsecore/native-common.h> + +#include "core-error.h" + +#ifdef HAVE_PTHREAD + +static pthread_once_t cstrerror_once = PTHREAD_ONCE_INIT; +static pthread_key_t tlsstr_key; + +static void inittls(void) { + int ret; + + ret = pthread_key_create(&tlsstr_key, pa_xfree); + if (ret) { + fprintf(stderr, __FILE__ ": CRITICAL: Unable to allocate TLS key (%d)\n", errno); + exit(-1); + } +} + +#elif HAVE_WINDOWS_H + +static DWORD tlsstr_key = TLS_OUT_OF_INDEXES; +static DWORD monitor_key = TLS_OUT_OF_INDEXES; + +static void inittls(void) { + HANDLE mutex; + char name[64]; + + sprintf(name, "pulseaudio%d", (int)GetCurrentProcessId()); + + mutex = CreateMutex(NULL, FALSE, name); + if (!mutex) { + fprintf(stderr, __FILE__ ": CRITICAL: Unable to create named mutex (%d)\n", (int)GetLastError()); + exit(-1); + } + + WaitForSingleObject(mutex, INFINITE); + + if (tlsstr_key == TLS_OUT_OF_INDEXES) { + tlsstr_key = TlsAlloc(); + monitor_key = TlsAlloc(); + if ((tlsstr_key == TLS_OUT_OF_INDEXES) || (monitor_key == TLS_OUT_OF_INDEXES)) { + fprintf(stderr, __FILE__ ": CRITICAL: Unable to allocate TLS key (%d)\n", (int)GetLastError()); + exit(-1); + } + } + + ReleaseMutex(mutex); + + CloseHandle(mutex); +} + +/* + * This is incredibly brain dead, but this is necessary when dealing with + * the hell that is Win32. + */ +struct monitor_data { + HANDLE thread; + void *data; +}; + +static DWORD WINAPI monitor_thread(LPVOID param) { + struct monitor_data *data; + + data = (struct monitor_data*)param; + assert(data); + + WaitForSingleObject(data->thread, INFINITE); + + CloseHandle(data->thread); + pa_xfree(data->data); + pa_xfree(data); + + return 0; +} + +static void start_monitor(void) { + HANDLE thread; + struct monitor_data *data; + + data = pa_xnew(struct monitor_data, 1); + assert(data); + + DuplicateHandle(GetCurrentProcess(), GetCurrentThread(), + GetCurrentProcess(), &data->thread, 0, FALSE, DUPLICATE_SAME_ACCESS); + + thread = CreateThread(NULL, 0, monitor_thread, data, 0, NULL); + assert(thread); + + TlsSetValue(monitor_key, data); + + CloseHandle(thread); +} + +#else + +/* Unsafe, but we have no choice */ +static char *tlsstr; + +#endif + +const char* pa_cstrerror(int errnum) { + const char *origbuf; + +#ifdef HAVE_STRERROR_R + char errbuf[128]; +#endif + +#ifdef HAVE_PTHREAD + char *tlsstr; + + pthread_once(&cstrerror_once, inittls); + + tlsstr = pthread_getspecific(tlsstr_key); +#elif defined(HAVE_WINDOWS_H) + char *tlsstr; + struct monitor_data *data; + + inittls(); + + tlsstr = TlsGetValue(tlsstr_key); + if (!tlsstr) + start_monitor(); + data = TlsGetValue(monitor_key); +#endif + + if (tlsstr) + pa_xfree(tlsstr); + +#ifdef HAVE_STRERROR_R + +#ifdef __GLIBC__ + origbuf = strerror_r(errnum, errbuf, sizeof(errbuf)); + if (origbuf == NULL) + origbuf = ""; +#else + if (strerror_r(errnum, errbuf, sizeof(errbuf)) == 0) { + origbuf = errbuf; + errbuf[sizeof(errbuf) - 1] = '\0'; + } else + origbuf = ""; +#endif + +#else + /* This might not be thread safe, but we hope for the best */ + origbuf = strerror(errnum); +#endif + + tlsstr = pa_locale_to_utf8(origbuf); + if (!tlsstr) { + fprintf(stderr, "Unable to convert, filtering\n"); + tlsstr = pa_utf8_filter(origbuf); + } + +#ifdef HAVE_PTHREAD + pthread_setspecific(tlsstr_key, tlsstr); +#elif defined(HAVE_WINDOWS_H) + TlsSetValue(tlsstr_key, tlsstr); + data->data = tlsstr; +#endif + + return tlsstr; +} diff --git a/src/pulsecore/core-error.h b/src/pulsecore/core-error.h new file mode 100644 index 00000000..32da8bf2 --- /dev/null +++ b/src/pulsecore/core-error.h @@ -0,0 +1,41 @@ +#ifndef foocoreerrorhfoo +#define foocoreerrorhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> +#include <pulse/cdecl.h> + +/** \file + * Error management */ + +PA_C_DECL_BEGIN + +/** A wrapper around the standard strerror() function that converts the + * string to UTF-8. The function is thread safe but the returned string is + * only guaranteed to exist until the thread exits or pa_cstrerror() is + * called again from the same thread. */ +const char* pa_cstrerror(int errnum); + +PA_C_DECL_END + +#endif diff --git a/src/pulsecore/core-scache.c b/src/pulsecore/core-scache.c new file mode 100644 index 00000000..377dd569 --- /dev/null +++ b/src/pulsecore/core-scache.c @@ -0,0 +1,412 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdlib.h> +#include <string.h> +#include <stdio.h> +#include <sys/types.h> +#include <dirent.h> +#include <sys/stat.h> +#include <errno.h> +#include <limits.h> + +#ifdef HAVE_GLOB_H +#include <glob.h> +#endif + +#ifdef HAVE_WINDOWS_H +#include <windows.h> +#endif + +#include <pulse/mainloop.h> +#include <pulse/channelmap.h> +#include <pulse/timeval.h> +#include <pulse/util.h> +#include <pulse/volume.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/sink-input.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/play-memchunk.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/namereg.h> +#include <pulsecore/sound-file.h> +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> +#include <pulsecore/core-error.h> + +#include "core-scache.h" + +#define UNLOAD_POLL_TIME 2 + +static void timeout_callback(pa_mainloop_api *m, pa_time_event*e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) { + pa_core *c = userdata; + struct timeval ntv; + assert(c && c->mainloop == m && c->scache_auto_unload_event == e); + + pa_scache_unload_unused(c); + + pa_gettimeofday(&ntv); + ntv.tv_sec += UNLOAD_POLL_TIME; + m->time_restart(e, &ntv); +} + +static void free_entry(pa_scache_entry *e) { + assert(e); + pa_namereg_unregister(e->core, e->name); + pa_subscription_post(e->core, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_REMOVE, e->index); + pa_xfree(e->name); + pa_xfree(e->filename); + if (e->memchunk.memblock) + pa_memblock_unref(e->memchunk.memblock); + pa_xfree(e); +} + +static pa_scache_entry* scache_add_item(pa_core *c, const char *name) { + pa_scache_entry *e; + assert(c && name); + + if ((e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 0))) { + if (e->memchunk.memblock) + pa_memblock_unref(e->memchunk.memblock); + + pa_xfree(e->filename); + + assert(e->core == c); + + pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_CHANGE, e->index); + } else { + e = pa_xmalloc(sizeof(pa_scache_entry)); + + if (!pa_namereg_register(c, name, PA_NAMEREG_SAMPLE, e, 1)) { + pa_xfree(e); + return NULL; + } + + e->name = pa_xstrdup(name); + e->core = c; + + if (!c->scache) { + c->scache = pa_idxset_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func); + assert(c->scache); + } + + pa_idxset_put(c->scache, e, &e->index); + + pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_NEW, e->index); + } + + e->last_used_time = 0; + e->memchunk.memblock = NULL; + e->memchunk.index = e->memchunk.length = 0; + e->filename = NULL; + e->lazy = 0; + e->last_used_time = 0; + + memset(&e->sample_spec, 0, sizeof(e->sample_spec)); + pa_channel_map_init(&e->channel_map); + pa_cvolume_reset(&e->volume, PA_CHANNELS_MAX); + + return e; +} + +int pa_scache_add_item(pa_core *c, const char *name, const pa_sample_spec *ss, const pa_channel_map *map, const pa_memchunk *chunk, uint32_t *idx) { + pa_scache_entry *e; + assert(c && name); + + if (chunk && chunk->length > PA_SCACHE_ENTRY_SIZE_MAX) + return -1; + + if (!(e = scache_add_item(c, name))) + return -1; + + if (ss) { + e->sample_spec = *ss; + pa_channel_map_init_auto(&e->channel_map, ss->channels, PA_CHANNEL_MAP_DEFAULT); + e->volume.channels = e->sample_spec.channels; + } + + if (map) + e->channel_map = *map; + + if (chunk) { + e->memchunk = *chunk; + pa_memblock_ref(e->memchunk.memblock); + } + + if (idx) + *idx = e->index; + + return 0; +} + +int pa_scache_add_file(pa_core *c, const char *name, const char *filename, uint32_t *idx) { + pa_sample_spec ss; + pa_channel_map map; + pa_memchunk chunk; + int r; + +#ifdef OS_IS_WIN32 + char buf[MAX_PATH]; + + if (ExpandEnvironmentStrings(filename, buf, MAX_PATH)) + filename = buf; +#endif + + if (pa_sound_file_load(filename, &ss, &map, &chunk, c->memblock_stat) < 0) + return -1; + + r = pa_scache_add_item(c, name, &ss, &map, &chunk, idx); + pa_memblock_unref(chunk.memblock); + + return r; +} + +int pa_scache_add_file_lazy(pa_core *c, const char *name, const char *filename, uint32_t *idx) { + pa_scache_entry *e; + +#ifdef OS_IS_WIN32 + char buf[MAX_PATH]; + + if (ExpandEnvironmentStrings(filename, buf, MAX_PATH)) + filename = buf; +#endif + + assert(c && name); + + if (!(e = scache_add_item(c, name))) + return -1; + + e->lazy = 1; + e->filename = pa_xstrdup(filename); + + if (!c->scache_auto_unload_event) { + struct timeval ntv; + pa_gettimeofday(&ntv); + ntv.tv_sec += UNLOAD_POLL_TIME; + c->scache_auto_unload_event = c->mainloop->time_new(c->mainloop, &ntv, timeout_callback, c); + } + + if (idx) + *idx = e->index; + + return 0; +} + +int pa_scache_remove_item(pa_core *c, const char *name) { + pa_scache_entry *e; + assert(c && name); + + if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 0))) + return -1; + + if (pa_idxset_remove_by_data(c->scache, e, NULL) != e) + assert(0); + + free_entry(e); + return 0; +} + +static void free_cb(void *p, PA_GCC_UNUSED void *userdata) { + pa_scache_entry *e = p; + assert(e); + free_entry(e); +} + +void pa_scache_free(pa_core *c) { + assert(c); + + if (c->scache) { + pa_idxset_free(c->scache, free_cb, NULL); + c->scache = NULL; + } + + if (c->scache_auto_unload_event) + c->mainloop->time_free(c->scache_auto_unload_event); +} + +int pa_scache_play_item(pa_core *c, const char *name, pa_sink *sink, pa_volume_t volume) { + pa_scache_entry *e; + char *t; + pa_cvolume r; + + assert(c); + assert(name); + assert(sink); + + if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 1))) + return -1; + + if (e->lazy && !e->memchunk.memblock) { + if (pa_sound_file_load(e->filename, &e->sample_spec, &e->channel_map, &e->memchunk, c->memblock_stat) < 0) + return -1; + + pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_CHANGE, e->index); + + if (e->volume.channels > e->sample_spec.channels) + e->volume.channels = e->sample_spec.channels; + } + + if (!e->memchunk.memblock) + return -1; + + t = pa_sprintf_malloc("sample:%s", name); + + pa_cvolume_set(&r, e->volume.channels, volume); + pa_sw_cvolume_multiply(&r, &r, &e->volume); + + if (pa_play_memchunk(sink, t, &e->sample_spec, &e->channel_map, &e->memchunk, &r) < 0) { + pa_xfree(t); + return -1; + } + + pa_xfree(t); + + if (e->lazy) + time(&e->last_used_time); + + return 0; +} + +const char * pa_scache_get_name_by_id(pa_core *c, uint32_t id) { + pa_scache_entry *e; + assert(c && id != PA_IDXSET_INVALID); + + if (!c->scache || !(e = pa_idxset_get_by_index(c->scache, id))) + return NULL; + + return e->name; +} + +uint32_t pa_scache_get_id_by_name(pa_core *c, const char *name) { + pa_scache_entry *e; + assert(c && name); + + if (!(e = pa_namereg_get(c, name, PA_NAMEREG_SAMPLE, 0))) + return PA_IDXSET_INVALID; + + return e->index; +} + +uint32_t pa_scache_total_size(pa_core *c) { + pa_scache_entry *e; + uint32_t idx, sum = 0; + assert(c); + + if (!c->scache || !pa_idxset_size(c->scache)) + return 0; + + for (e = pa_idxset_first(c->scache, &idx); e; e = pa_idxset_next(c->scache, &idx)) + if (e->memchunk.memblock) + sum += e->memchunk.length; + + return sum; +} + +void pa_scache_unload_unused(pa_core *c) { + pa_scache_entry *e; + time_t now; + uint32_t idx; + assert(c); + + if (!c->scache || !pa_idxset_size(c->scache)) + return; + + time(&now); + + for (e = pa_idxset_first(c->scache, &idx); e; e = pa_idxset_next(c->scache, &idx)) { + + if (!e->lazy || !e->memchunk.memblock) + continue; + + if (e->last_used_time + c->scache_idle_time > now) + continue; + + pa_memblock_unref(e->memchunk.memblock); + e->memchunk.memblock = NULL; + e->memchunk.index = e->memchunk.length = 0; + + pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SAMPLE_CACHE|PA_SUBSCRIPTION_EVENT_CHANGE, e->index); + } +} + +static void add_file(pa_core *c, const char *pathname) { + struct stat st; + const char *e; + + e = pa_path_get_filename(pathname); + + if (stat(pathname, &st) < 0) { + pa_log(__FILE__": stat('%s'): %s", pathname, pa_cstrerror(errno)); + return; + } + +#if defined(S_ISREG) && defined(S_ISLNK) + if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) +#endif + pa_scache_add_file_lazy(c, e, pathname, NULL); +} + +int pa_scache_add_directory_lazy(pa_core *c, const char *pathname) { + DIR *dir; + assert(c && pathname); + + /* First try to open this as directory */ + if (!(dir = opendir(pathname))) { +#ifdef HAVE_GLOB_H + glob_t p; + unsigned int i; + /* If that fails, try to open it as shell glob */ + + if (glob(pathname, GLOB_ERR|GLOB_NOSORT, NULL, &p) < 0) { + pa_log(__FILE__": failed to open directory '%s': %s", pathname, pa_cstrerror(errno)); + return -1; + } + + for (i = 0; i < p.gl_pathc; i++) + add_file(c, p.gl_pathv[i]); + + globfree(&p); +#else + return -1; +#endif + } else { + struct dirent *e; + + while ((e = readdir(dir))) { + char p[PATH_MAX]; + + if (e->d_name[0] == '.') + continue; + + snprintf(p, sizeof(p), "%s/%s", pathname, e->d_name); + add_file(c, p); + } + } + + closedir(dir); + return 0; +} diff --git a/src/pulsecore/core-scache.h b/src/pulsecore/core-scache.h new file mode 100644 index 00000000..d01aae9b --- /dev/null +++ b/src/pulsecore/core-scache.h @@ -0,0 +1,64 @@ +#ifndef foocorescachehfoo +#define foocorescachehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> +#include <pulsecore/memchunk.h> +#include <pulsecore/sink.h> + +#define PA_SCACHE_ENTRY_SIZE_MAX (1024*1024*2) + +typedef struct pa_scache_entry { + pa_core *core; + uint32_t index; + char *name; + + pa_cvolume volume; + pa_sample_spec sample_spec; + pa_channel_map channel_map; + pa_memchunk memchunk; + + char *filename; + + int lazy; + time_t last_used_time; +} pa_scache_entry; + +int pa_scache_add_item(pa_core *c, const char *name, const pa_sample_spec *ss, const pa_channel_map *map, const pa_memchunk *chunk, uint32_t *idx); +int pa_scache_add_file(pa_core *c, const char *name, const char *filename, uint32_t *idx); +int pa_scache_add_file_lazy(pa_core *c, const char *name, const char *filename, uint32_t *idx); + +int pa_scache_add_directory_lazy(pa_core *c, const char *pathname); + +int pa_scache_remove_item(pa_core *c, const char *name); +int pa_scache_play_item(pa_core *c, const char *name, pa_sink *sink, pa_volume_t volume); +void pa_scache_free(pa_core *c); + +const char *pa_scache_get_name_by_id(pa_core *c, uint32_t id); +uint32_t pa_scache_get_id_by_name(pa_core *c, const char *name); + +uint32_t pa_scache_total_size(pa_core *c); + +void pa_scache_unload_unused(pa_core *c); + +#endif diff --git a/src/pulsecore/core-subscribe.c b/src/pulsecore/core-subscribe.c new file mode 100644 index 00000000..e865256a --- /dev/null +++ b/src/pulsecore/core-subscribe.c @@ -0,0 +1,233 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <assert.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/queue.h> +#include <pulsecore/log.h> + +#include "core-subscribe.h" + +/* The subscription subsystem may be used to be notified whenever an + * entity (sink, source, ...) is created or deleted. Modules may + * register a callback function that is called whenever an event + * matching a subscription mask happens. The execution of the callback + * function is postponed to the next main loop iteration, i.e. is not + * called from within the stack frame the entity was created in. */ + +struct pa_subscription { + pa_core *core; + int dead; + void (*callback)(pa_core *c, pa_subscription_event_type_t t, uint32_t index, void *userdata); + void *userdata; + pa_subscription_mask_t mask; + + pa_subscription *prev, *next; +}; + +struct pa_subscription_event { + pa_subscription_event_type_t type; + uint32_t index; +}; + +static void sched_event(pa_core *c); + +/* Allocate a new subscription object for the given subscription mask. Use the specified callback function and user data */ +pa_subscription* pa_subscription_new(pa_core *c, pa_subscription_mask_t m, void (*callback)(pa_core *c, pa_subscription_event_type_t t, uint32_t index, void *userdata), void *userdata) { + pa_subscription *s; + assert(c); + + s = pa_xmalloc(sizeof(pa_subscription)); + s->core = c; + s->dead = 0; + s->callback = callback; + s->userdata = userdata; + s->mask = m; + + if ((s->next = c->subscriptions)) + s->next->prev = s; + s->prev = NULL; + c->subscriptions = s; + return s; +} + +/* Free a subscription object, effectively marking it for deletion */ +void pa_subscription_free(pa_subscription*s) { + assert(s && !s->dead); + s->dead = 1; + sched_event(s->core); +} + +static void free_item(pa_subscription *s) { + assert(s && s->core); + + if (s->prev) + s->prev->next = s->next; + else + s->core->subscriptions = s->next; + + if (s->next) + s->next->prev = s->prev; + + pa_xfree(s); +} + +/* Free all subscription objects */ +void pa_subscription_free_all(pa_core *c) { + pa_subscription_event *e; + assert(c); + + while (c->subscriptions) + free_item(c->subscriptions); + + if (c->subscription_event_queue) { + while ((e = pa_queue_pop(c->subscription_event_queue))) + pa_xfree(e); + + pa_queue_free(c->subscription_event_queue, NULL, NULL); + c->subscription_event_queue = NULL; + } + + if (c->subscription_defer_event) { + c->mainloop->defer_free(c->subscription_defer_event); + c->subscription_defer_event = NULL; + } +} + +#if 0 +static void dump_event(pa_subscription_event*e) { + switch (e->type & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) { + case PA_SUBSCRIPTION_EVENT_SINK: + pa_log(__FILE__": SINK_EVENT"); + break; + case PA_SUBSCRIPTION_EVENT_SOURCE: + pa_log(__FILE__": SOURCE_EVENT"); + break; + case PA_SUBSCRIPTION_EVENT_SINK_INPUT: + pa_log(__FILE__": SINK_INPUT_EVENT"); + break; + case PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT: + pa_log(__FILE__": SOURCE_OUTPUT_EVENT"); + break; + case PA_SUBSCRIPTION_EVENT_MODULE: + pa_log(__FILE__": MODULE_EVENT"); + break; + case PA_SUBSCRIPTION_EVENT_CLIENT: + pa_log(__FILE__": CLIENT_EVENT"); + break; + default: + pa_log(__FILE__": OTHER"); + break; + } + + switch (e->type & PA_SUBSCRIPTION_EVENT_TYPE_MASK) { + case PA_SUBSCRIPTION_EVENT_NEW: + pa_log(__FILE__": NEW"); + break; + case PA_SUBSCRIPTION_EVENT_CHANGE: + pa_log(__FILE__": CHANGE"); + break; + case PA_SUBSCRIPTION_EVENT_REMOVE: + pa_log(__FILE__": REMOVE"); + break; + default: + pa_log(__FILE__": OTHER"); + break; + } + + pa_log(__FILE__": %u", e->index); +} +#endif + +/* Deferred callback for dispatching subscirption events */ +static void defer_cb(pa_mainloop_api *m, pa_defer_event *de, void *userdata) { + pa_core *c = userdata; + pa_subscription *s; + assert(c && c->subscription_defer_event == de && c->mainloop == m); + + c->mainloop->defer_enable(c->subscription_defer_event, 0); + + /* Dispatch queued events */ + + if (c->subscription_event_queue) { + pa_subscription_event *e; + + while ((e = pa_queue_pop(c->subscription_event_queue))) { + + for (s = c->subscriptions; s; s = s->next) { + + if (!s->dead && pa_subscription_match_flags(s->mask, e->type)) + s->callback(c, e->type, e->index, s->userdata); + } + + pa_xfree(e); + } + } + + /* Remove dead subscriptions */ + + s = c->subscriptions; + while (s) { + pa_subscription *n = s->next; + if (s->dead) + free_item(s); + s = n; + } +} + +/* Schedule an mainloop event so that a pending subscription event is dispatched */ +static void sched_event(pa_core *c) { + assert(c); + + if (!c->subscription_defer_event) { + c->subscription_defer_event = c->mainloop->defer_new(c->mainloop, defer_cb, c); + assert(c->subscription_defer_event); + } + + c->mainloop->defer_enable(c->subscription_defer_event, 1); +} + +/* Append a new subscription event to the subscription event queue and schedule a main loop event */ +void pa_subscription_post(pa_core *c, pa_subscription_event_type_t t, uint32_t index) { + pa_subscription_event *e; + assert(c); + + e = pa_xmalloc(sizeof(pa_subscription_event)); + e->type = t; + e->index = index; + + if (!c->subscription_event_queue) { + c->subscription_event_queue = pa_queue_new(); + assert(c->subscription_event_queue); + } + + pa_queue_push(c->subscription_event_queue, e); + sched_event(c); +} + + diff --git a/src/pulsecore/core-subscribe.h b/src/pulsecore/core-subscribe.h new file mode 100644 index 00000000..c2467033 --- /dev/null +++ b/src/pulsecore/core-subscribe.h @@ -0,0 +1,37 @@ +#ifndef foocoresubscribehfoo +#define foocoresubscribehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef struct pa_subscription pa_subscription; +typedef struct pa_subscription_event pa_subscription_event; + +#include <pulsecore/core.h> +#include <pulsecore/native-common.h> + +pa_subscription* pa_subscription_new(pa_core *c, pa_subscription_mask_t m, void (*callback)(pa_core *c, pa_subscription_event_type_t t, uint32_t index, void *userdata), void *userdata); +void pa_subscription_free(pa_subscription*s); +void pa_subscription_free_all(pa_core *c); + +void pa_subscription_post(pa_core *c, pa_subscription_event_type_t t, uint32_t idx); + +#endif diff --git a/src/pulsecore/core-util.c b/src/pulsecore/core-util.c new file mode 100644 index 00000000..8e3587eb --- /dev/null +++ b/src/pulsecore/core-util.c @@ -0,0 +1,1023 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdarg.h> +#include <stdlib.h> +#include <signal.h> +#include <errno.h> +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <fcntl.h> +#include <unistd.h> +#include <limits.h> +#include <time.h> +#include <ctype.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/time.h> + +#ifdef HAVE_SCHED_H +#include <sched.h> +#endif + +#ifdef HAVE_SYS_RESOURCE_H +#include <sys/resource.h> +#endif + +#ifdef HAVE_PTHREAD +#include <pthread.h> +#endif + +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif + +#ifdef HAVE_WINDOWS_H +#include <windows.h> +#endif + +#ifdef HAVE_PWD_H +#include <pwd.h> +#endif + +#ifdef HAVE_GRP_H +#include <grp.h> +#endif + +#include <samplerate.h> + +#include <pulse/xmalloc.h> +#include <pulse/util.h> + +#include <pulsecore/core-error.h> +#include <pulsecore/winsock.h> +#include <pulsecore/log.h> + +#include "core-util.h" + +#ifndef OS_IS_WIN32 +#define PA_RUNTIME_PATH_PREFIX "/tmp/pulseaudio-" +#define PATH_SEP '/' +#else +#define PA_RUNTIME_PATH_PREFIX "%TEMP%\\pulseaudio-" +#define PATH_SEP '\\' +#endif + +#ifdef OS_IS_WIN32 + +#define POLYP_ROOTENV "POLYP_ROOT" + +int pa_set_root(HANDLE handle) { + char library_path[MAX_PATH + sizeof(POLYP_ROOTENV) + 1], *sep; + + strcpy(library_path, POLYP_ROOTENV "="); + + if (!GetModuleFileName(handle, library_path + sizeof(POLYP_ROOTENV), MAX_PATH)) + return 0; + + sep = strrchr(library_path, '\\'); + if (sep) + *sep = '\0'; + + if (_putenv(library_path) < 0) + return 0; + + return 1; +} + +#endif + +/** Make a file descriptor nonblock. Doesn't do any error checking */ +void pa_make_nonblock_fd(int fd) { +#ifdef O_NONBLOCK + int v; + assert(fd >= 0); + + if ((v = fcntl(fd, F_GETFL)) >= 0) + if (!(v & O_NONBLOCK)) + fcntl(fd, F_SETFL, v|O_NONBLOCK); +#elif defined(OS_IS_WIN32) + u_long arg = 1; + if (ioctlsocket(fd, FIONBIO, &arg) < 0) { + if (WSAGetLastError() == WSAENOTSOCK) + pa_log_warn(__FILE__": WARNING: Only sockets can be made non-blocking!"); + } +#else + pa_log_warn(__FILE__": WARNING: Non-blocking I/O not supported.!"); +#endif +} + +/** Creates a directory securely */ +int pa_make_secure_dir(const char* dir) { + struct stat st; + assert(dir); + +#ifdef OS_IS_WIN32 + if (mkdir(dir) < 0) +#else + if (mkdir(dir, 0700) < 0) +#endif + if (errno != EEXIST) + return -1; + +#ifdef HAVE_CHOWN + chown(dir, getuid(), getgid()); +#endif +#ifdef HAVE_CHMOD + chmod(dir, 0700); +#endif + +#ifdef HAVE_LSTAT + if (lstat(dir, &st) < 0) +#else + if (stat(dir, &st) < 0) +#endif + goto fail; + +#ifndef OS_IS_WIN32 + if (!S_ISDIR(st.st_mode) || (st.st_uid != getuid()) || ((st.st_mode & 0777) != 0700)) + goto fail; +#else + fprintf(stderr, "FIXME: pa_make_secure_dir()\n"); +#endif + + return 0; + +fail: + rmdir(dir); + return -1; +} + +/* Return a newly allocated sting containing the parent directory of the specified file */ +char *pa_parent_dir(const char *fn) { + char *slash, *dir = pa_xstrdup(fn); + + slash = (char*) pa_path_get_filename(dir); + if (slash == fn) + return NULL; + + *(slash-1) = 0; + return dir; +} + +/* Creates a the parent directory of the specified path securely */ +int pa_make_secure_parent_dir(const char *fn) { + int ret = -1; + char *dir; + + if (!(dir = pa_parent_dir(fn))) + goto finish; + + if (pa_make_secure_dir(dir) < 0) + goto finish; + + ret = 0; + +finish: + pa_xfree(dir); + return ret; +} + +/** Platform independent read function. Necessary since not all systems + * treat all file descriptors equal. */ +ssize_t pa_read(int fd, void *buf, size_t count) { + ssize_t r; + +#ifdef OS_IS_WIN32 + r = recv(fd, buf, count, 0); + if (r < 0) { + if (WSAGetLastError() != WSAENOTSOCK) { + errno = WSAGetLastError(); + return r; + } + } + + if (r < 0) +#endif + r = read(fd, buf, count); + + return r; +} + +/** Similar to pa_read(), but handles writes */ +ssize_t pa_write(int fd, const void *buf, size_t count) { + ssize_t r; + +#ifdef OS_IS_WIN32 + r = send(fd, buf, count, 0); + if (r < 0) { + if (WSAGetLastError() != WSAENOTSOCK) { + errno = WSAGetLastError(); + return r; + } + } + + if (r < 0) +#endif + r = write(fd, buf, count); + + return r; +} + +/** Calls read() in a loop. Makes sure that as much as 'size' bytes, + * unless EOF is reached or an error occured */ +ssize_t pa_loop_read(int fd, void*data, size_t size) { + ssize_t ret = 0; + assert(fd >= 0 && data && size); + + while (size > 0) { + ssize_t r; + + if ((r = pa_read(fd, data, size)) < 0) + return r; + + if (r == 0) + break; + + ret += r; + data = (uint8_t*) data + r; + size -= r; + } + + return ret; +} + +/** Similar to pa_loop_read(), but wraps write() */ +ssize_t pa_loop_write(int fd, const void*data, size_t size) { + ssize_t ret = 0; + assert(fd >= 0 && data && size); + + while (size > 0) { + ssize_t r; + + if ((r = pa_write(fd, data, size)) < 0) + return r; + + if (r == 0) + break; + + ret += r; + data = (const uint8_t*) data + r; + size -= r; + } + + return ret; +} + +/* Print a warning messages in case that the given signal is not + * blocked or trapped */ +void pa_check_signal_is_blocked(int sig) { +#ifdef HAVE_SIGACTION + struct sigaction sa; + sigset_t set; + + /* If POSIX threads are supported use thread-aware + * pthread_sigmask() function, to check if the signal is + * blocked. Otherwise fall back to sigprocmask() */ + +#ifdef HAVE_PTHREAD + if (pthread_sigmask(SIG_SETMASK, NULL, &set) < 0) { +#endif + if (sigprocmask(SIG_SETMASK, NULL, &set) < 0) { + pa_log(__FILE__": sigprocmask(): %s", pa_cstrerror(errno)); + return; + } +#ifdef HAVE_PTHREAD + } +#endif + + if (sigismember(&set, sig)) + return; + + /* Check whether the signal is trapped */ + + if (sigaction(sig, NULL, &sa) < 0) { + pa_log(__FILE__": sigaction(): %s", pa_cstrerror(errno)); + return; + } + + if (sa.sa_handler != SIG_DFL) + return; + + pa_log(__FILE__": WARNING: %s is not trapped. This might cause malfunction!", pa_strsignal(sig)); +#else /* HAVE_SIGACTION */ + pa_log(__FILE__": WARNING: %s might not be trapped. This might cause malfunction!", pa_strsignal(sig)); +#endif +} + +/* The following function is based on an example from the GNU libc + * documentation. This function is similar to GNU's asprintf(). */ +char *pa_sprintf_malloc(const char *format, ...) { + int size = 100; + char *c = NULL; + + assert(format); + + for(;;) { + int r; + va_list ap; + + c = pa_xrealloc(c, size); + + va_start(ap, format); + r = vsnprintf(c, size, format, ap); + va_end(ap); + + if (r > -1 && r < size) + return c; + + if (r > -1) /* glibc 2.1 */ + size = r+1; + else /* glibc 2.0 */ + size *= 2; + } +} + +/* Same as the previous function, but use a va_list instead of an + * ellipsis */ +char *pa_vsprintf_malloc(const char *format, va_list ap) { + int size = 100; + char *c = NULL; + + assert(format); + + for(;;) { + int r; + va_list aq; + + va_copy(aq, ap); + + c = pa_xrealloc(c, size); + r = vsnprintf(c, size, format, aq); + + va_end(aq); + + if (r > -1 && r < size) + return c; + + if (r > -1) /* glibc 2.1 */ + size = r+1; + else /* glibc 2.0 */ + size *= 2; + } +} + +/* Similar to OpenBSD's strlcpy() function */ +char *pa_strlcpy(char *b, const char *s, size_t l) { + assert(b && s && l > 0); + + strncpy(b, s, l); + b[l-1] = 0; + return b; +} + +#define NICE_LEVEL (-15) + +/* Raise the priority of the current process as much as possible and +sensible: set the nice level to -15 and enable realtime scheduling if +supported.*/ +void pa_raise_priority(void) { + +#ifdef HAVE_SYS_RESOURCE_H + if (setpriority(PRIO_PROCESS, 0, NICE_LEVEL) < 0) + pa_log_warn(__FILE__": setpriority(): %s", pa_cstrerror(errno)); + else + pa_log_info(__FILE__": Successfully gained nice level %i.", NICE_LEVEL); +#endif + +#ifdef _POSIX_PRIORITY_SCHEDULING + { + struct sched_param sp; + + if (sched_getparam(0, &sp) < 0) { + pa_log(__FILE__": sched_getparam(): %s", pa_cstrerror(errno)); + return; + } + + sp.sched_priority = 1; + if (sched_setscheduler(0, SCHED_FIFO, &sp) < 0) { + pa_log_warn(__FILE__": sched_setscheduler(): %s", pa_cstrerror(errno)); + return; + } + + pa_log_info(__FILE__": Successfully enabled SCHED_FIFO scheduling."); + } +#endif + +#ifdef OS_IS_WIN32 + if (!SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS)) + pa_log_warn(__FILE__": SetPriorityClass() failed: 0x%08X", GetLastError()); + else + pa_log_info(__FILE__": Successfully gained high priority class."); +#endif +} + +/* Reset the priority to normal, inverting the changes made by pa_raise_priority() */ +void pa_reset_priority(void) { +#ifdef OS_IS_WIN32 + SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS); +#endif + +#ifdef _POSIX_PRIORITY_SCHEDULING + { + struct sched_param sp; + sched_getparam(0, &sp); + sp.sched_priority = 0; + sched_setscheduler(0, SCHED_OTHER, &sp); + } +#endif + +#ifdef HAVE_SYS_RESOURCE_H + setpriority(PRIO_PROCESS, 0, 0); +#endif +} + +/* Set the FD_CLOEXEC flag for a fd */ +int pa_fd_set_cloexec(int fd, int b) { + +#ifdef FD_CLOEXEC + int v; + assert(fd >= 0); + + if ((v = fcntl(fd, F_GETFD, 0)) < 0) + return -1; + + v = (v & ~FD_CLOEXEC) | (b ? FD_CLOEXEC : 0); + + if (fcntl(fd, F_SETFD, v) < 0) + return -1; +#endif + + return 0; +} + +/* Try to parse a boolean string value.*/ +int pa_parse_boolean(const char *v) { + + if (!strcmp(v, "1") || v[0] == 'y' || v[0] == 'Y' || v[0] == 't' || v[0] == 'T' || !strcasecmp(v, "on")) + return 1; + else if (!strcmp(v, "0") || v[0] == 'n' || v[0] == 'N' || v[0] == 'f' || v[0] == 'F' || !strcasecmp(v, "off")) + return 0; + + return -1; +} + +/* Split the specified string wherever one of the strings in delimiter + * occurs. Each time it is called returns a newly allocated string + * with pa_xmalloc(). The variable state points to, should be + * initiallized to NULL before the first call. */ +char *pa_split(const char *c, const char *delimiter, const char**state) { + const char *current = *state ? *state : c; + size_t l; + + if (!*current) + return NULL; + + l = strcspn(current, delimiter); + *state = current+l; + + if (**state) + (*state)++; + + return pa_xstrndup(current, l); +} + +/* What is interpreted as whitespace? */ +#define WHITESPACE " \t\n" + +/* Split a string into words. Otherwise similar to pa_split(). */ +char *pa_split_spaces(const char *c, const char **state) { + const char *current = *state ? *state : c; + size_t l; + + if (!*current || *c == 0) + return NULL; + + current += strspn(current, WHITESPACE); + l = strcspn(current, WHITESPACE); + + *state = current+l; + + return pa_xstrndup(current, l); +} + +/* Return the name of an UNIX signal. Similar to GNU's strsignal() */ +const char *pa_strsignal(int sig) { + switch(sig) { + case SIGINT: return "SIGINT"; + case SIGTERM: return "SIGTERM"; +#ifdef SIGUSR1 + case SIGUSR1: return "SIGUSR1"; +#endif +#ifdef SIGUSR2 + case SIGUSR2: return "SIGUSR2"; +#endif +#ifdef SIGXCPU + case SIGXCPU: return "SIGXCPU"; +#endif +#ifdef SIGPIPE + case SIGPIPE: return "SIGPIPE"; +#endif +#ifdef SIGCHLD + case SIGCHLD: return "SIGCHLD"; +#endif +#ifdef SIGHUP + case SIGHUP: return "SIGHUP"; +#endif + default: return "UNKNOWN SIGNAL"; + } +} + +#ifdef HAVE_GRP_H + +/* Check whether the specified GID and the group name match */ +static int is_group(gid_t gid, const char *name) { + struct group group, *result = NULL; + long n; + void *data; + int r = -1; + +#ifdef HAVE_GETGRGID_R +#ifdef _SC_GETGR_R_SIZE_MAX + n = sysconf(_SC_GETGR_R_SIZE_MAX); +#else + n = -1; +#endif + if (n < 0) n = 512; + data = pa_xmalloc(n); + + if (getgrgid_r(gid, &group, data, n, &result) < 0 || !result) { + pa_log(__FILE__": getgrgid_r(%u): %s", (unsigned)gid, pa_cstrerror(errno)); + goto finish; + } + + r = strcmp(name, result->gr_name) == 0; + +finish: + pa_xfree(data); +#else + /* XXX Not thread-safe, but needed on OSes (e.g. FreeBSD 4.X) that do not + * support getgrgid_r. */ + if ((result = getgrgid(gid)) == NULL) { + pa_log(__FILE__": getgrgid(%u): %s", gid, pa_cstrerror(errno)); + goto finish; + } + + r = strcmp(name, result->gr_name) == 0; + +finish: +#endif + + return r; +} + +/* Check the current user is member of the specified group */ +int pa_own_uid_in_group(const char *name, gid_t *gid) { + GETGROUPS_T *gids, tgid; + int n = sysconf(_SC_NGROUPS_MAX); + int r = -1, i; + + assert(n > 0); + + gids = pa_xmalloc(sizeof(GETGROUPS_T)*n); + + if ((n = getgroups(n, gids)) < 0) { + pa_log(__FILE__": getgroups(): %s", pa_cstrerror(errno)); + goto finish; + } + + for (i = 0; i < n; i++) { + if (is_group(gids[i], name) > 0) { + *gid = gids[i]; + r = 1; + goto finish; + } + } + + if (is_group(tgid = getgid(), name) > 0) { + *gid = tgid; + r = 1; + goto finish; + } + + r = 0; + +finish: + + pa_xfree(gids); + return r; +} + +int pa_uid_in_group(uid_t uid, const char *name) { + char *g_buf, *p_buf; + long g_n, p_n; + struct group grbuf, *gr; + char **i; + int r = -1; + + g_n = sysconf(_SC_GETGR_R_SIZE_MAX); + g_buf = pa_xmalloc(g_n); + + p_n = sysconf(_SC_GETPW_R_SIZE_MAX); + p_buf = pa_xmalloc(p_n); + + if (getgrnam_r(name, &grbuf, g_buf, (size_t) g_n, &gr) != 0 || !gr) + goto finish; + + r = 0; + for (i = gr->gr_mem; *i; i++) { + struct passwd pwbuf, *pw; + + if (getpwnam_r(*i, &pwbuf, p_buf, (size_t) p_n, &pw) != 0 || !pw) + continue; + + if (pw->pw_uid == uid) { + r = 1; + break; + } + } + +finish: + pa_xfree(g_buf); + pa_xfree(p_buf); + + return r; +} + +#else /* HAVE_GRP_H */ + +int pa_own_uid_in_group(const char *name, gid_t *gid) { + return -1; + +} + +int pa_uid_in_group(uid_t uid, const char *name) { + return -1; +} + +#endif + +/* Lock or unlock a file entirely. + (advisory on UNIX, mandatory on Windows) */ +int pa_lock_fd(int fd, int b) { +#ifdef F_SETLKW + struct flock flock; + + /* Try a R/W lock first */ + + flock.l_type = b ? F_WRLCK : F_UNLCK; + flock.l_whence = SEEK_SET; + flock.l_start = 0; + flock.l_len = 0; + + if (fcntl(fd, F_SETLKW, &flock) >= 0) + return 0; + + /* Perhaps the file descriptor qas opened for read only, than try again with a read lock. */ + if (b && errno == EBADF) { + flock.l_type = F_RDLCK; + if (fcntl(fd, F_SETLKW, &flock) >= 0) + return 0; + } + + pa_log(__FILE__": %slock: %s", !b? "un" : "", + pa_cstrerror(errno)); +#endif + +#ifdef OS_IS_WIN32 + HANDLE h = (HANDLE)_get_osfhandle(fd); + + if (b && LockFile(h, 0, 0, 0xFFFFFFFF, 0xFFFFFFFF)) + return 0; + if (!b && UnlockFile(h, 0, 0, 0xFFFFFFFF, 0xFFFFFFFF)) + return 0; + + pa_log(__FILE__": %slock failed: 0x%08X", !b ? "un" : "", GetLastError()); +#endif + + return -1; +} + +/* Remove trailing newlines from a string */ +char* pa_strip_nl(char *s) { + assert(s); + + s[strcspn(s, "\r\n")] = 0; + return s; +} + +/* Create a temporary lock file and lock it. */ +int pa_lock_lockfile(const char *fn) { + int fd = -1; + assert(fn); + + for (;;) { + struct stat st; + + if ((fd = open(fn, O_CREAT|O_RDWR, S_IRUSR|S_IWUSR)) < 0) { + pa_log(__FILE__": failed to create lock file '%s': %s", fn, + pa_cstrerror(errno)); + goto fail; + } + + if (pa_lock_fd(fd, 1) < 0) { + pa_log(__FILE__": failed to lock file '%s'.", fn); + goto fail; + } + + if (fstat(fd, &st) < 0) { + pa_log(__FILE__": failed to fstat() file '%s'.", fn); + goto fail; + } + + /* Check wheter the file has been removed meanwhile. When yes, restart this loop, otherwise, we're done */ + if (st.st_nlink >= 1) + break; + + if (pa_lock_fd(fd, 0) < 0) { + pa_log(__FILE__": failed to unlock file '%s'.", fn); + goto fail; + } + + if (close(fd) < 0) { + pa_log(__FILE__": failed to close file '%s'.", fn); + goto fail; + } + + fd = -1; + } + + return fd; + +fail: + + if (fd >= 0) + close(fd); + + return -1; +} + +/* Unlock a temporary lcok file */ +int pa_unlock_lockfile(const char *fn, int fd) { + int r = 0; + assert(fn && fd >= 0); + + if (unlink(fn) < 0) { + pa_log_warn(__FILE__": WARNING: unable to remove lock file '%s': %s", + fn, pa_cstrerror(errno)); + r = -1; + } + + if (pa_lock_fd(fd, 0) < 0) { + pa_log_warn(__FILE__": WARNING: failed to unlock file '%s'.", fn); + r = -1; + } + + if (close(fd) < 0) { + pa_log_warn(__FILE__": WARNING: failed to close lock file '%s': %s", + fn, pa_cstrerror(errno)); + r = -1; + } + + return r; +} + +/* Try to open a configuration file. If "env" is specified, open the + * value of the specified environment variable. Otherwise look for a + * file "local" in the home directory or a file "global" in global + * file system. If "result" is non-NULL, a pointer to a newly + * allocated buffer containing the used configuration file is + * stored there.*/ +FILE *pa_open_config_file(const char *global, const char *local, const char *env, char **result, const char *mode) { + const char *fn; + char h[PATH_MAX]; + +#ifdef OS_IS_WIN32 + char buf[PATH_MAX]; + + if (!getenv(POLYP_ROOTENV)) + pa_set_root(NULL); +#endif + + if (env && (fn = getenv(env))) { +#ifdef OS_IS_WIN32 + if (!ExpandEnvironmentStrings(fn, buf, PATH_MAX)) + return NULL; + fn = buf; +#endif + + if (result) + *result = pa_xstrdup(fn); + + return fopen(fn, mode); + } + + if (local && pa_get_home_dir(h, sizeof(h))) { + FILE *f; + char *lfn; + + fn = lfn = pa_sprintf_malloc("%s/%s", h, local); + +#ifdef OS_IS_WIN32 + if (!ExpandEnvironmentStrings(lfn, buf, PATH_MAX)) + return NULL; + fn = buf; +#endif + + f = fopen(fn, mode); + + if (f || errno != ENOENT) { + if (result) + *result = pa_xstrdup(fn); + pa_xfree(lfn); + return f; + } + + pa_xfree(lfn); + } + + if (!global) { + if (result) + *result = NULL; + errno = ENOENT; + return NULL; + } + +#ifdef OS_IS_WIN32 + if (!ExpandEnvironmentStrings(global, buf, PATH_MAX)) + return NULL; + global = buf; +#endif + + if (result) + *result = pa_xstrdup(global); + + return fopen(global, mode); +} + +/* Format the specified data as a hexademical string */ +char *pa_hexstr(const uint8_t* d, size_t dlength, char *s, size_t slength) { + size_t i = 0, j = 0; + const char hex[] = "0123456789abcdef"; + assert(d && s && slength > 0); + + while (i < dlength && j+3 <= slength) { + s[j++] = hex[*d >> 4]; + s[j++] = hex[*d & 0xF]; + + d++; + i++; + } + + s[j < slength ? j : slength] = 0; + return s; +} + +/* Convert a hexadecimal digit to a number or -1 if invalid */ +static int hexc(char c) { + if (c >= '0' && c <= '9') + return c - '0'; + + if (c >= 'A' && c <= 'F') + return c - 'A' + 10; + + if (c >= 'a' && c <= 'f') + return c - 'a' + 10; + + return -1; +} + +/* Parse a hexadecimal string as created by pa_hexstr() to a BLOB */ +size_t pa_parsehex(const char *p, uint8_t *d, size_t dlength) { + size_t j = 0; + assert(p && d); + + while (j < dlength && *p) { + int b; + + if ((b = hexc(*(p++))) < 0) + return (size_t) -1; + + d[j] = (uint8_t) (b << 4); + + if (!*p) + return (size_t) -1; + + if ((b = hexc(*(p++))) < 0) + return (size_t) -1; + + d[j] |= (uint8_t) b; + j++; + } + + return j; +} + +/* Returns nonzero when *s starts with *pfx */ +int pa_startswith(const char *s, const char *pfx) { + size_t l; + + assert(s); + assert(pfx); + + l = strlen(pfx); + + return strlen(s) >= l && strncmp(s, pfx, l) == 0; +} + +/* Returns nonzero when *s ends with *sfx */ +int pa_endswith(const char *s, const char *sfx) { + size_t l1, l2; + + assert(s); + assert(sfx); + + l1 = strlen(s); + l2 = strlen(sfx); + + return l1 >= l2 && strcmp(s+l1-l2, sfx) == 0; +} + +/* if fn is null return the pulseaudio run time path in s (/tmp/pulseaudio) + * if fn is non-null and starts with / return fn in s + * otherwise append fn to the run time path and return it in s */ +char *pa_runtime_path(const char *fn, char *s, size_t l) { + char u[256]; + +#ifndef OS_IS_WIN32 + if (fn && *fn == '/') +#else + if (fn && strlen(fn) >= 3 && isalpha(fn[0]) && fn[1] == ':' && fn[2] == '\\') +#endif + return pa_strlcpy(s, fn, l); + + if (fn) + snprintf(s, l, "%s%s%c%s", PA_RUNTIME_PATH_PREFIX, pa_get_user_name(u, sizeof(u)), PATH_SEP, fn); + else + snprintf(s, l, "%s%s", PA_RUNTIME_PATH_PREFIX, pa_get_user_name(u, sizeof(u))); + +#ifdef OS_IS_WIN32 + { + char buf[l]; + strcpy(buf, s); + ExpandEnvironmentStrings(buf, s, l); + } +#endif + + return s; +} + +/* Convert the string s to a signed integer in *ret_i */ +int pa_atoi(const char *s, int32_t *ret_i) { + char *x = NULL; + long l; + assert(s && ret_i); + + l = strtol(s, &x, 0); + + if (!x || *x) + return -1; + + *ret_i = (int32_t) l; + + return 0; +} + +/* Convert the string s to an unsigned integer in *ret_u */ +int pa_atou(const char *s, uint32_t *ret_u) { + char *x = NULL; + unsigned long l; + assert(s && ret_u); + + l = strtoul(s, &x, 0); + + if (!x || *x) + return -1; + + *ret_u = (uint32_t) l; + + return 0; +} diff --git a/src/pulsecore/core-util.h b/src/pulsecore/core-util.h new file mode 100644 index 00000000..0012afc6 --- /dev/null +++ b/src/pulsecore/core-util.h @@ -0,0 +1,88 @@ +#ifndef foocoreutilhfoo +#define foocoreutilhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> +#include <inttypes.h> +#include <stdarg.h> +#include <stdio.h> + +#include <pulsecore/gccmacro.h> + +struct timeval; + +void pa_make_nonblock_fd(int fd); + +int pa_make_secure_dir(const char* dir); +int pa_make_secure_parent_dir(const char *fn); + +ssize_t pa_read(int fd, void *buf, size_t count); +ssize_t pa_write(int fd, const void *buf, size_t count); +ssize_t pa_loop_read(int fd, void*data, size_t size); +ssize_t pa_loop_write(int fd, const void*data, size_t size); + +void pa_check_signal_is_blocked(int sig); + +char *pa_sprintf_malloc(const char *format, ...) PA_GCC_PRINTF_ATTR(1,2); +char *pa_vsprintf_malloc(const char *format, va_list ap); + +char *pa_strlcpy(char *b, const char *s, size_t l); + +char *pa_parent_dir(const char *fn); + +void pa_raise_priority(void); +void pa_reset_priority(void); + +int pa_fd_set_cloexec(int fd, int b); + +int pa_parse_boolean(const char *s); + +char *pa_split(const char *c, const char*delimiters, const char **state); +char *pa_split_spaces(const char *c, const char **state); + +char *pa_strip_nl(char *s); + +const char *pa_strsignal(int sig); + +int pa_own_uid_in_group(const char *name, gid_t *gid); +int pa_uid_in_group(uid_t uid, const char *name); + +int pa_lock_fd(int fd, int b); + +int pa_lock_lockfile(const char *fn); +int pa_unlock_lockfile(const char *fn, int fd); + +FILE *pa_open_config_file(const char *global, const char *local, const char *env, char **result, const char *mode); + +char *pa_hexstr(const uint8_t* d, size_t dlength, char *s, size_t slength); +size_t pa_parsehex(const char *p, uint8_t *d, size_t dlength); + +int pa_startswith(const char *s, const char *pfx); +int pa_endswith(const char *s, const char *sfx); + +char *pa_runtime_path(const char *fn, char *s, size_t l); + +int pa_atoi(const char *s, int32_t *ret_i); +int pa_atou(const char *s, uint32_t *ret_u); + +#endif diff --git a/src/pulsecore/core.c b/src/pulsecore/core.c new file mode 100644 index 00000000..7c780ea8 --- /dev/null +++ b/src/pulsecore/core.c @@ -0,0 +1,160 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <stdio.h> +#include <signal.h> + +#include <pulse/timeval.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/module.h> +#include <pulsecore/sink.h> +#include <pulsecore/source.h> +#include <pulsecore/namereg.h> +#include <pulsecore/core-util.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/autoload.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/props.h> +#include <pulsecore/random.h> + +#include "core.h" + +pa_core* pa_core_new(pa_mainloop_api *m) { + pa_core* c; + c = pa_xmalloc(sizeof(pa_core)); + + c->mainloop = m; + c->clients = pa_idxset_new(NULL, NULL); + c->sinks = pa_idxset_new(NULL, NULL); + c->sources = pa_idxset_new(NULL, NULL); + c->source_outputs = pa_idxset_new(NULL, NULL); + c->sink_inputs = pa_idxset_new(NULL, NULL); + + c->default_source_name = c->default_sink_name = NULL; + + c->modules = NULL; + c->namereg = NULL; + c->scache = NULL; + c->autoload_idxset = NULL; + c->autoload_hashmap = NULL; + c->running_as_daemon = 0; + + c->default_sample_spec.format = PA_SAMPLE_S16NE; + c->default_sample_spec.rate = 44100; + c->default_sample_spec.channels = 2; + + c->module_auto_unload_event = NULL; + c->module_defer_unload_event = NULL; + c->scache_auto_unload_event = NULL; + + c->subscription_defer_event = NULL; + c->subscription_event_queue = NULL; + c->subscriptions = NULL; + + c->memblock_stat = pa_memblock_stat_new(); + + c->disallow_module_loading = 0; + + c->quit_event = NULL; + + c->exit_idle_time = -1; + c->module_idle_time = 20; + c->scache_idle_time = 20; + + c->resample_method = PA_RESAMPLER_SRC_SINC_FASTEST; + + pa_property_init(c); + + pa_random(&c->cookie, sizeof(c->cookie)); + +#ifdef SIGPIPE + pa_check_signal_is_blocked(SIGPIPE); +#endif + return c; +} + +void pa_core_free(pa_core *c) { + assert(c); + + pa_module_unload_all(c); + assert(!c->modules); + + assert(pa_idxset_isempty(c->clients)); + pa_idxset_free(c->clients, NULL, NULL); + + assert(pa_idxset_isempty(c->sinks)); + pa_idxset_free(c->sinks, NULL, NULL); + + assert(pa_idxset_isempty(c->sources)); + pa_idxset_free(c->sources, NULL, NULL); + + assert(pa_idxset_isempty(c->source_outputs)); + pa_idxset_free(c->source_outputs, NULL, NULL); + + assert(pa_idxset_isempty(c->sink_inputs)); + pa_idxset_free(c->sink_inputs, NULL, NULL); + + pa_scache_free(c); + pa_namereg_free(c); + pa_autoload_free(c); + pa_subscription_free_all(c); + + if (c->quit_event) + c->mainloop->time_free(c->quit_event); + + pa_xfree(c->default_source_name); + pa_xfree(c->default_sink_name); + + pa_memblock_stat_unref(c->memblock_stat); + + pa_property_cleanup(c); + + pa_xfree(c); +} + +static void quit_callback(pa_mainloop_api*m, pa_time_event *e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) { + pa_core *c = userdata; + assert(c->quit_event = e); + + m->quit(m, 0); +} + +void pa_core_check_quit(pa_core *c) { + assert(c); + + if (!c->quit_event && c->exit_idle_time >= 0 && pa_idxset_size(c->clients) == 0) { + struct timeval tv; + pa_gettimeofday(&tv); + tv.tv_sec+= c->exit_idle_time; + c->quit_event = c->mainloop->time_new(c->mainloop, &tv, quit_callback, c); + } else if (c->quit_event && pa_idxset_size(c->clients) > 0) { + c->mainloop->time_free(c->quit_event); + c->quit_event = NULL; + } +} + diff --git a/src/pulsecore/core.h b/src/pulsecore/core.h new file mode 100644 index 00000000..627d4239 --- /dev/null +++ b/src/pulsecore/core.h @@ -0,0 +1,82 @@ +#ifndef foocorehfoo +#define foocorehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef struct pa_core pa_core; + +#include <pulsecore/idxset.h> +#include <pulsecore/hashmap.h> +#include <pulse/mainloop-api.h> +#include <pulse/sample.h> +#include <pulsecore/memblock.h> +#include <pulsecore/resampler.h> +#include <pulsecore/queue.h> +#include <pulsecore/core-subscribe.h> + +/* The core structure of pulseaudio. Every pulseaudio daemon contains + * exactly one of these. It is used for storing kind of global + * variables for the daemon. */ + +struct pa_core { + /* A random value which may be used to identify this instance of + * pulseaudio. Not cryptographically secure in any way. */ + uint32_t cookie; + + pa_mainloop_api *mainloop; + + /* idxset of all kinds of entities */ + pa_idxset *clients, *sinks, *sources, *sink_inputs, *source_outputs, *modules, *scache, *autoload_idxset; + + /* Some hashmaps for all sorts of entities */ + pa_hashmap *namereg, *autoload_hashmap, *properties; + + /* The name of the default sink/source */ + char *default_source_name, *default_sink_name; + + pa_sample_spec default_sample_spec; + pa_time_event *module_auto_unload_event; + pa_defer_event *module_defer_unload_event; + + pa_defer_event *subscription_defer_event; + pa_queue *subscription_event_queue; + pa_subscription *subscriptions; + + pa_memblock_stat *memblock_stat; + + int disallow_module_loading, running_as_daemon; + int exit_idle_time, module_idle_time, scache_idle_time; + + pa_time_event *quit_event; + + pa_time_event *scache_auto_unload_event; + + pa_resample_method_t resample_method; +}; + +pa_core* pa_core_new(pa_mainloop_api *m); +void pa_core_free(pa_core*c); + +/* Check whether noone is connected to this core */ +void pa_core_check_quit(pa_core *c); + +#endif diff --git a/src/pulsecore/dllmain.c b/src/pulsecore/dllmain.c new file mode 100644 index 00000000..b86bf04f --- /dev/null +++ b/src/pulsecore/dllmain.c @@ -0,0 +1,55 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#ifdef OS_IS_WIN32 + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include <windows.h> + +extern pa_set_root(HANDLE handle); + +BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved) { + WSADATA data; + + switch (fdwReason) { + + case DLL_PROCESS_ATTACH: + if (!pa_set_root(hinstDLL)) + return FALSE; + WSAStartup(MAKEWORD(2, 0), &data); + break; + + case DLL_PROCESS_DETACH: + WSACleanup(); + break; + + } + return TRUE; +} + +#endif /* OS_IS_WIN32 */ diff --git a/src/pulsecore/dynarray.c b/src/pulsecore/dynarray.c new file mode 100644 index 00000000..d1ab1161 --- /dev/null +++ b/src/pulsecore/dynarray.c @@ -0,0 +1,103 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include "dynarray.h" + +/* If the array becomes to small, increase its size by 100 entries */ +#define INCREASE_BY 100 + +struct pa_dynarray { + void **data; + unsigned n_allocated, n_entries; +}; + +pa_dynarray* pa_dynarray_new(void) { + pa_dynarray *a; + a = pa_xnew(pa_dynarray, 1); + a->data = NULL; + a->n_entries = 0; + a->n_allocated = 0; + return a; +} + +void pa_dynarray_free(pa_dynarray* a, void (*func)(void *p, void *userdata), void *userdata) { + unsigned i; + assert(a); + + if (func) + for (i = 0; i < a->n_entries; i++) + if (a->data[i]) + func(a->data[i], userdata); + + pa_xfree(a->data); + pa_xfree(a); +} + +void pa_dynarray_put(pa_dynarray*a, unsigned i, void *p) { + assert(a); + + if (i >= a->n_allocated) { + unsigned n; + + if (!p) + return; + + n = i+INCREASE_BY; + a->data = pa_xrealloc(a->data, sizeof(void*)*n); + memset(a->data+a->n_allocated, 0, sizeof(void*)*(n-a->n_allocated)); + a->n_allocated = n; + } + + a->data[i] = p; + + if (i >= a->n_entries) + a->n_entries = i+1; +} + +unsigned pa_dynarray_append(pa_dynarray*a, void *p) { + unsigned i = a->n_entries; + pa_dynarray_put(a, i, p); + return i; +} + +void *pa_dynarray_get(pa_dynarray*a, unsigned i) { + assert(a); + if (i >= a->n_allocated) + return NULL; + + assert(a->data); + return a->data[i]; +} + +unsigned pa_dynarray_size(pa_dynarray*a) { + assert(a); + return a->n_entries; +} diff --git a/src/pulsecore/dynarray.h b/src/pulsecore/dynarray.h new file mode 100644 index 00000000..4ddb526c --- /dev/null +++ b/src/pulsecore/dynarray.h @@ -0,0 +1,49 @@ +#ifndef foodynarrayhfoo +#define foodynarrayhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef struct pa_dynarray pa_dynarray; + +/* Implementation of a simple dynamically sized array. The array + * expands if required, but doesn't shrink if possible. Memory + * management of the array's entries is the user's job. */ + +pa_dynarray* pa_dynarray_new(void); + +/* Free the array calling the specified function for every entry in + * the array. The function may be NULL. */ +void pa_dynarray_free(pa_dynarray* a, void (*func)(void *p, void *userdata), void *userdata); + +/* Store p at position i in the array */ +void pa_dynarray_put(pa_dynarray*a, unsigned i, void *p); + +/* Store p a the first free position in the array. Returns the index + * of that entry. If entries are removed from the array their position + * are not filled any more by this function. */ +unsigned pa_dynarray_append(pa_dynarray*a, void *p); + +void *pa_dynarray_get(pa_dynarray*a, unsigned i); + +unsigned pa_dynarray_size(pa_dynarray*a); + +#endif diff --git a/src/pulsecore/endianmacros.h b/src/pulsecore/endianmacros.h new file mode 100644 index 00000000..65db3feb --- /dev/null +++ b/src/pulsecore/endianmacros.h @@ -0,0 +1,77 @@ +#ifndef fooendianmacroshfoo +#define fooendianmacroshfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#define INT16_SWAP(x) ( (int16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) ) +#define UINT16_SWAP(x) ( (uint16_t) ( ((uint16_t) x >> 8) | ((uint16_t) x << 8) ) ) +#define INT32_SWAP(x) ( (int32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) ) +#define UINT32_SWAP(x) ( (uint32_t) ( ((uint32_t) x >> 24) | ((uint32_t) x << 24) | (((uint32_t) x & 0xFF00) << 8) | ((((uint32_t) x) >> 8) & 0xFF00) ) ) + +#define MAYBE_INT32_SWAP(c,x) ((c) ? INT32_SWAP(x) : x) +#define MAYBE_UINT32_SWAP(c,x) ((c) ? UINT32_SWAP(x) : x) + +#ifdef WORDS_BIGENDIAN + #define INT16_FROM_LE(x) INT16_SWAP(x) + #define INT16_FROM_BE(x) ((int16_t)(x)) + + #define INT16_TO_LE(x) INT16_SWAP(x) + #define INT16_TO_BE(x) ((int16_t)(x)) + + #define UINT16_FROM_LE(x) UINT16_SWAP(x) + #define UINT16_FROM_BE(x) ((uint16_t)(x)) + + #define INT32_FROM_LE(x) INT32_SWAP(x) + #define INT32_FROM_BE(x) ((int32_t)(x)) + + #define UINT32_FROM_LE(x) UINT32_SWAP(x) + #define UINT32_FROM_BE(x) ((uint32_t)(x)) + + #define UINT32_TO_LE(x) UINT32_SWAP(x) + #define UINT32_TO_BE(x) ((uint32_t)(x)) +#else + #define INT16_FROM_LE(x) ((int16_t)(x)) + #define INT16_FROM_BE(x) INT16_SWAP(x) + + #define INT16_TO_LE(x) ((int16_t)(x)) + #define INT16_TO_BE(x) INT16_SWAP(x) + + #define UINT16_FROM_LE(x) ((uint16_t)(x)) + #define UINT16_FROM_BE(x) UINT16_SWAP(x) + + #define INT32_FROM_LE(x) ((int32_t)(x)) + #define INT32_FROM_BE(x) INT32_SWAP(x) + + #define UINT32_FROM_LE(x) ((uint32_t)(x)) + #define UINT32_FROM_BE(x) UINT32_SWAP(x) + + #define UINT32_TO_LE(x) ((uint32_t)(x)) + #define UINT32_TO_BE(x) UINT32_SWAP(x) +#endif + +#endif diff --git a/src/pulsecore/esound.h b/src/pulsecore/esound.h new file mode 100644 index 00000000..9d44f65c --- /dev/null +++ b/src/pulsecore/esound.h @@ -0,0 +1,209 @@ +#ifndef fooesoundhfoo +#define fooesoundhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +/* Most of the following is blatantly stolen from esound. */ + + +/* path and name of the default EsounD domain socket */ +#define ESD_UNIX_SOCKET_DIR "/tmp/.esd" +#define ESD_UNIX_SOCKET_NAME "/tmp/.esd/socket" + +/* length of the audio buffer size */ +#define ESD_BUF_SIZE (4 * 1024) +/* maximum size we can write(). Otherwise we might overflow */ +#define ESD_MAX_WRITE_SIZE (21 * 4096) + +/* length of the authorization key, octets */ +#define ESD_KEY_LEN (16) + +/* default port for the EsounD server */ +#define ESD_DEFAULT_PORT (16001) + +/* default sample rate for the EsounD server */ +#define ESD_DEFAULT_RATE (44100) + +/* maximum length of a stream/sample name */ +#define ESD_NAME_MAX (128) + +/* a magic number to identify the relative endianness of a client */ +#define ESD_ENDIAN_KEY ((uint32_t) (('E' << 24) + ('N' << 16) + ('D' << 8) + ('N'))) + +#define ESD_VOLUME_BASE (256) + + +/*************************************/ +/* what can we do to/with the EsounD */ +enum esd_proto { + ESD_PROTO_CONNECT, /* implied on inital client connection */ + + /* pseudo "security" functionality */ + ESD_PROTO_LOCK, /* disable "foreign" client connections */ + ESD_PROTO_UNLOCK, /* enable "foreign" client connections */ + + /* stream functionality: play, record, monitor */ + ESD_PROTO_STREAM_PLAY, /* play all following data as a stream */ + ESD_PROTO_STREAM_REC, /* record data from card as a stream */ + ESD_PROTO_STREAM_MON, /* send mixed buffer output as a stream */ + + /* sample functionality: cache, free, play, loop, EOL, kill */ + ESD_PROTO_SAMPLE_CACHE, /* cache a sample in the server */ + ESD_PROTO_SAMPLE_FREE, /* release a sample in the server */ + ESD_PROTO_SAMPLE_PLAY, /* play a cached sample */ + ESD_PROTO_SAMPLE_LOOP, /* loop a cached sample, til eoloop */ + ESD_PROTO_SAMPLE_STOP, /* stop a looping sample when done */ + ESD_PROTO_SAMPLE_KILL, /* stop the looping sample immed. */ + + /* free and reclaim /dev/dsp functionality */ + ESD_PROTO_STANDBY, /* release /dev/dsp and ignore all data */ + ESD_PROTO_RESUME, /* reclaim /dev/dsp and play sounds again */ + + /* TODO: move these to a more logical place. NOTE: will break the protocol */ + ESD_PROTO_SAMPLE_GETID, /* get the ID for an already-cached sample */ + ESD_PROTO_STREAM_FILT, /* filter mixed buffer output as a stream */ + + /* esd remote management */ + ESD_PROTO_SERVER_INFO, /* get server info (ver, sample rate, format) */ + ESD_PROTO_ALL_INFO, /* get all info (server info, players, samples) */ + ESD_PROTO_SUBSCRIBE, /* track new and removed players and samples */ + ESD_PROTO_UNSUBSCRIBE, /* stop tracking updates */ + + /* esd remote control */ + ESD_PROTO_STREAM_PAN, /* set stream panning */ + ESD_PROTO_SAMPLE_PAN, /* set default sample panning */ + + /* esd status */ + ESD_PROTO_STANDBY_MODE, /* see if server is in standby, autostandby, etc */ + + /* esd latency */ + ESD_PROTO_LATENCY, /* retrieve latency between write()'s and output */ + + ESD_PROTO_MAX /* for bounds checking */ +}; + +/******************/ +/* The EsounD api */ + +/* the properties of a sound buffer are logically or'd */ + +/* bits of stream/sample data */ +#define ESD_MASK_BITS ( 0x000F ) +#define ESD_BITS8 ( 0x0000 ) +#define ESD_BITS16 ( 0x0001 ) + +/* how many interleaved channels of data */ +#define ESD_MASK_CHAN ( 0x00F0 ) +#define ESD_MONO ( 0x0010 ) +#define ESD_STEREO ( 0x0020 ) + +/* whether it's a stream or a sample */ +#define ESD_MASK_MODE ( 0x0F00 ) +#define ESD_STREAM ( 0x0000 ) +#define ESD_SAMPLE ( 0x0100 ) +#define ESD_ADPCM ( 0x0200 ) /* TODO: anyone up for this? =P */ + +/* the function of the stream/sample, and common functions */ +#define ESD_MASK_FUNC ( 0xF000 ) +#define ESD_PLAY ( 0x1000 ) +/* functions for streams only */ +#define ESD_MONITOR ( 0x0000 ) +#define ESD_RECORD ( 0x2000 ) +/* functions for samples only */ +#define ESD_STOP ( 0x0000 ) +#define ESD_LOOP ( 0x2000 ) + +typedef int esd_format_t; +typedef int esd_proto_t; + +/*******************************************************************/ +/* esdmgr.c - functions to implement a "sound manager" for esd */ + +/* structures to retrieve information about streams/samples from the server */ +typedef struct esd_server_info { + + int version; /* server version encoded as an int */ + esd_format_t format; /* magic int with the format info */ + int rate; /* sample rate */ + +} esd_server_info_t; + +typedef struct esd_player_info { + + struct esd_player_info *next; /* point to next entry in list */ + esd_server_info_t *server; /* the server that contains this stream */ + + int source_id; /* either a stream fd or sample id */ + char name[ ESD_NAME_MAX ]; /* name of stream for remote control */ + int rate; /* sample rate */ + int left_vol_scale; /* volume scaling */ + int right_vol_scale; + + esd_format_t format; /* magic int with the format info */ + +} esd_player_info_t; + +typedef struct esd_sample_info { + + struct esd_sample_info *next; /* point to next entry in list */ + esd_server_info_t *server; /* the server that contains this sample */ + + int sample_id; /* either a stream fd or sample id */ + char name[ ESD_NAME_MAX ]; /* name of stream for remote control */ + int rate; /* sample rate */ + int left_vol_scale; /* volume scaling */ + int right_vol_scale; + + esd_format_t format; /* magic int with the format info */ + int length; /* total buffer length */ + +} esd_sample_info_t; + +typedef struct esd_info { + + esd_server_info_t *server; + esd_player_info_t *player_list; + esd_sample_info_t *sample_list; + +} esd_info_t; + +enum esd_standby_mode { + ESM_ERROR, ESM_ON_STANDBY, ESM_ON_AUTOSTANDBY, ESM_RUNNING +}; +typedef int esd_standby_mode_t; + +enum esd_client_state { + ESD_STREAMING_DATA, /* data from here on is streamed data */ + ESD_CACHING_SAMPLE, /* midway through caching a sample */ + ESD_NEEDS_REQDATA, /* more data needed to complere request */ + ESD_NEXT_REQUEST, /* proceed to next request */ + ESD_CLIENT_STATE_MAX /* place holder */ +}; +typedef int esd_client_state_t; + +/* the endian key is transferred in binary, if it's read into int, */ +/* and matches ESD_ENDIAN_KEY (ENDN), then the endianness of the */ +/* server and the client match; if it's SWAP_ENDIAN_KEY, swap data */ +#define ESD_SWAP_ENDIAN_KEY (UINT32_SWAP(ESD_ENDIAN_KEY)) + + +#endif diff --git a/src/pulsecore/g711.c b/src/pulsecore/g711.c new file mode 100644 index 00000000..55a82396 --- /dev/null +++ b/src/pulsecore/g711.c @@ -0,0 +1,2531 @@ +/*
+ * This source code is a product of Sun Microsystems, Inc. and is provided
+ * for unrestricted use. Users may copy or modify this source code without
+ * charge.
+ *
+ * SUN SOURCE CODE IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING
+ * THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ *
+ * Sun source code is provided with no support and without any obligation on
+ * the part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ *
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY THIS SOFTWARE
+ * OR ANY PART THEREOF.
+ *
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ *
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California 94043
+ */
+
+/*
+ * g711.c
+ *
+ * u-law, A-law and linear PCM conversions.
+ */
+
+/*
+ * December 30, 1994:
+ * Functions linear2alaw, linear2ulaw have been updated to correctly
+ * convert unquantized 16 bit values.
+ * Tables for direct u- to A-law and A- to u-law conversions have been
+ * corrected.
+ * Borge Lindberg, Center for PersonKommunikation, Aalborg University.
+ * bli@cpk.auc.dk
+ *
+ */
+
+#include "g711.h"
+
+#define SIGN_BIT (0x80) /* Sign bit for a A-law byte. */
+#define QUANT_MASK (0xf) /* Quantization field mask. */
+#define NSEGS (8) /* Number of A-law segments. */
+#define SEG_SHIFT (4) /* Left shift for segment number. */
+#define SEG_MASK (0x70) /* Segment field mask. */
+
+#if !defined(FAST_ALAW_CONVERSION) || !defined(FAST_ULAW_CONVERSION)
+static int16_t seg_aend[8] = {0x1F, 0x3F, 0x7F, 0xFF,
+ 0x1FF, 0x3FF, 0x7FF, 0xFFF};
+static int16_t seg_uend[8] = {0x3F, 0x7F, 0xFF, 0x1FF,
+ 0x3FF, 0x7FF, 0xFFF, 0x1FFF};
+
+static int16_t search(
+ int16_t val,
+ int16_t *table,
+ int size)
+{
+ int i;
+
+ for (i = 0; i < size; i++) {
+ if (val <= *table++)
+ return (i);
+ }
+ return (size);
+}
+#endif /* !FAST_*_CONVERSION */
+
+#ifndef FAST_ALAW_CONVERSION
+/*
+ * linear2alaw() accepts an 13-bit signed integer and encodes it as A-law data
+ * stored in a unsigned char. This function should only be called with
+ * the data shifted such that it only contains information in the lower
+ * 13-bits.
+ *
+ * Linear Input Code Compressed Code
+ * ------------------------ ---------------
+ * 0000000wxyza 000wxyz
+ * 0000001wxyza 001wxyz
+ * 000001wxyzab 010wxyz
+ * 00001wxyzabc 011wxyz
+ * 0001wxyzabcd 100wxyz
+ * 001wxyzabcde 101wxyz
+ * 01wxyzabcdef 110wxyz
+ * 1wxyzabcdefg 111wxyz
+ *
+ * For further information see John C. Bellamy's Digital Telephony, 1982,
+ * John Wiley & Sons, pps 98-111 and 472-476.
+ */
+unsigned char st_13linear2alaw(
+ int16_t pcm_val) /* 2's complement (13-bit range) */
+{
+ int16_t mask;
+ short seg;
+ unsigned char aval;
+
+ /* Have calling software do it since its already doing a shift
+ * from 32-bits down to 16-bits.
+ */
+ /* pcm_val = pcm_val >> 3; */
+
+ /* A-law using even bit inversion */
+ if (pcm_val >= 0) {
+ mask = 0xD5; /* sign (7th) bit = 1 */
+ } else {
+ mask = 0x55; /* sign bit = 0 */
+ pcm_val = -pcm_val - 1;
+ }
+
+ /* Convert the scaled magnitude to segment number. */
+ seg = search(pcm_val, seg_aend, 8);
+
+ /* Combine the sign, segment, and quantization bits. */
+
+ if (seg >= 8) /* out of range, return maximum value. */
+ return (unsigned char) (0x7F ^ mask);
+ else {
+ aval = (unsigned char) seg << SEG_SHIFT;
+ if (seg < 2)
+ aval |= (pcm_val >> 1) & QUANT_MASK;
+ else
+ aval |= (pcm_val >> seg) & QUANT_MASK;
+ return (aval ^ mask);
+ }
+}
+
+/*
+ * alaw2linear() - Convert an A-law value to 16-bit signed linear PCM
+ *
+ */
+int16_t st_alaw2linear16(
+ unsigned char a_val)
+{
+ int16_t t;
+ int16_t seg;
+
+ a_val ^= 0x55;
+
+ t = (a_val & QUANT_MASK) << 4;
+ seg = ((unsigned)a_val & SEG_MASK) >> SEG_SHIFT;
+ switch (seg) {
+ case 0:
+ t += 8;
+ break;
+ case 1:
+ t += 0x108;
+ break;
+ default:
+ t += 0x108;
+ t <<= seg - 1;
+ }
+ return ((a_val & SIGN_BIT) ? t : -t);
+}
+#endif /* !FAST_ALAW_CONVERSION */
+
+#define BIAS (0x84) /* Bias for linear code. */
+#define CLIP 8159
+
+#ifndef FAST_ULAW_CONVERSION
+/*
+ * linear2ulaw() accepts a 14-bit signed integer and encodes it as u-law data
+ * stored in a unsigned char. This function should only be called with
+ * the data shifted such that it only contains information in the lower
+ * 14-bits.
+ *
+ * In order to simplify the encoding process, the original linear magnitude
+ * is biased by adding 33 which shifts the encoding range from (0 - 8158) to
+ * (33 - 8191). The result can be seen in the following encoding table:
+ *
+ * Biased Linear Input Code Compressed Code
+ * ------------------------ ---------------
+ * 00000001wxyza 000wxyz
+ * 0000001wxyzab 001wxyz
+ * 000001wxyzabc 010wxyz
+ * 00001wxyzabcd 011wxyz
+ * 0001wxyzabcde 100wxyz
+ * 001wxyzabcdef 101wxyz
+ * 01wxyzabcdefg 110wxyz
+ * 1wxyzabcdefgh 111wxyz
+ *
+ * Each biased linear code has a leading 1 which identifies the segment
+ * number. The value of the segment number is equal to 7 minus the number
+ * of leading 0's. The quantization interval is directly available as the
+ * four bits wxyz. * The trailing bits (a - h) are ignored.
+ *
+ * Ordinarily the complement of the resulting code word is used for
+ * transmission, and so the code word is complemented before it is returned.
+ *
+ * For further information see John C. Bellamy's Digital Telephony, 1982,
+ * John Wiley & Sons, pps 98-111 and 472-476.
+ */
+unsigned char st_14linear2ulaw(
+ int16_t pcm_val) /* 2's complement (14-bit range) */
+{
+ int16_t mask;
+ int16_t seg;
+ unsigned char uval;
+
+ /* Have calling software do it since its already doing a shift
+ * from 32-bits down to 16-bits.
+ */
+ /* pcm_val = pcm_val >> 2; */
+
+ /* u-law inverts all bits */
+ /* Get the sign and the magnitude of the value. */
+ if (pcm_val < 0) {
+ pcm_val = -pcm_val;
+ mask = 0x7F;
+ } else {
+ mask = 0xFF;
+ }
+ if ( pcm_val > CLIP ) pcm_val = CLIP; /* clip the magnitude */
+ pcm_val += (BIAS >> 2);
+
+ /* Convert the scaled magnitude to segment number. */
+ seg = search(pcm_val, seg_uend, 8);
+
+ /*
+ * Combine the sign, segment, quantization bits;
+ * and complement the code word.
+ */
+ if (seg >= 8) /* out of range, return maximum value. */
+ return (unsigned char) (0x7F ^ mask);
+ else {
+ uval = (unsigned char) (seg << 4) | ((pcm_val >> (seg + 1)) & 0xF);
+ return (uval ^ mask);
+ }
+
+}
+
+/*
+ * ulaw2linear() - Convert a u-law value to 16-bit linear PCM
+ *
+ * First, a biased linear code is derived from the code word. An unbiased
+ * output can then be obtained by subtracting 33 from the biased code.
+ *
+ * Note that this function expects to be passed the complement of the
+ * original code word. This is in keeping with ISDN conventions.
+ */
+int16_t st_ulaw2linear16(
+ unsigned char u_val)
+{
+ int16_t t;
+
+ /* Complement to obtain normal u-law value. */
+ u_val = ~u_val;
+
+ /*
+ * Extract and bias the quantization bits. Then
+ * shift up by the segment number and subtract out the bias.
+ */
+ t = ((u_val & QUANT_MASK) << 3) + BIAS;
+ t <<= ((unsigned)u_val & SEG_MASK) >> SEG_SHIFT;
+
+ return ((u_val & SIGN_BIT) ? (BIAS - t) : (t - BIAS));
+}
+#endif /* !FAST_ULAW_CONVERSION */
+
+#ifdef FAST_ALAW_CONVERSION
+
+int16_t _st_alaw2linear16[256] = {
+ -5504, -5248, -6016, -5760, -4480, -4224, -4992,
+ -4736, -7552, -7296, -8064, -7808, -6528, -6272,
+ -7040, -6784, -2752, -2624, -3008, -2880, -2240,
+ -2112, -2496, -2368, -3776, -3648, -4032, -3904,
+ -3264, -3136, -3520, -3392, -22016, -20992, -24064,
+ -23040, -17920, -16896, -19968, -18944, -30208, -29184,
+ -32256, -31232, -26112, -25088, -28160, -27136, -11008,
+ -10496, -12032, -11520, -8960, -8448, -9984, -9472,
+ -15104, -14592, -16128, -15616, -13056, -12544, -14080,
+ -13568, -344, -328, -376, -360, -280, -264,
+ -312, -296, -472, -456, -504, -488, -408,
+ -392, -440, -424, -88, -72, -120, -104,
+ -24, -8, -56, -40, -216, -200, -248,
+ -232, -152, -136, -184, -168, -1376, -1312,
+ -1504, -1440, -1120, -1056, -1248, -1184, -1888,
+ -1824, -2016, -1952, -1632, -1568, -1760, -1696,
+ -688, -656, -752, -720, -560, -528, -624,
+ -592, -944, -912, -1008, -976, -816, -784,
+ -880, -848, 5504, 5248, 6016, 5760, 4480,
+ 4224, 4992, 4736, 7552, 7296, 8064, 7808,
+ 6528, 6272, 7040, 6784, 2752, 2624, 3008,
+ 2880, 2240, 2112, 2496, 2368, 3776, 3648,
+ 4032, 3904, 3264, 3136, 3520, 3392, 22016,
+ 20992, 24064, 23040, 17920, 16896, 19968, 18944,
+ 30208, 29184, 32256, 31232, 26112, 25088, 28160,
+ 27136, 11008, 10496, 12032, 11520, 8960, 8448,
+ 9984, 9472, 15104, 14592, 16128, 15616, 13056,
+ 12544, 14080, 13568, 344, 328, 376, 360,
+ 280, 264, 312, 296, 472, 456, 504,
+ 488, 408, 392, 440, 424, 88, 72,
+ 120, 104, 24, 8, 56, 40, 216,
+ 200, 248, 232, 152, 136, 184, 168,
+ 1376, 1312, 1504, 1440, 1120, 1056, 1248,
+ 1184, 1888, 1824, 2016, 1952, 1632, 1568,
+ 1760, 1696, 688, 656, 752, 720, 560,
+ 528, 624, 592, 944, 912, 1008, 976,
+ 816, 784, 880, 848
+};
+
+uint8_t _st_13linear2alaw[0x2000] = {
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a,
+ 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b, 0x2b,
+ 0x2b, 0x2b, 0x2b, 0x2b, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28, 0x28,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
+ 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29, 0x29,
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+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae, 0xae,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9,
+ 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa9, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8, 0xa8,
+ 0xa8, 0xa8, 0xa8, 0xa8, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab, 0xab,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa,
+ 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa
+};
+
+#endif /* FAST_ALAW_CONVERSION */
+
+#ifdef FAST_ULAW_CONVERSION
+
+int16_t _st_ulaw2linear16[256] = {
+ -32124, -31100, -30076, -29052, -28028, -27004, -25980,
+ -24956, -23932, -22908, -21884, -20860, -19836, -18812,
+ -17788, -16764, -15996, -15484, -14972, -14460, -13948,
+ -13436, -12924, -12412, -11900, -11388, -10876, -10364,
+ -9852, -9340, -8828, -8316, -7932, -7676, -7420,
+ -7164, -6908, -6652, -6396, -6140, -5884, -5628,
+ -5372, -5116, -4860, -4604, -4348, -4092, -3900,
+ -3772, -3644, -3516, -3388, -3260, -3132, -3004,
+ -2876, -2748, -2620, -2492, -2364, -2236, -2108,
+ -1980, -1884, -1820, -1756, -1692, -1628, -1564,
+ -1500, -1436, -1372, -1308, -1244, -1180, -1116,
+ -1052, -988, -924, -876, -844, -812, -780,
+ -748, -716, -684, -652, -620, -588, -556,
+ -524, -492, -460, -428, -396, -372, -356,
+ -340, -324, -308, -292, -276, -260, -244,
+ -228, -212, -196, -180, -164, -148, -132,
+ -120, -112, -104, -96, -88, -80, -72,
+ -64, -56, -48, -40, -32, -24, -16,
+ -8, 0, 32124, 31100, 30076, 29052, 28028,
+ 27004, 25980, 24956, 23932, 22908, 21884, 20860,
+ 19836, 18812, 17788, 16764, 15996, 15484, 14972,
+ 14460, 13948, 13436, 12924, 12412, 11900, 11388,
+ 10876, 10364, 9852, 9340, 8828, 8316, 7932,
+ 7676, 7420, 7164, 6908, 6652, 6396, 6140,
+ 5884, 5628, 5372, 5116, 4860, 4604, 4348,
+ 4092, 3900, 3772, 3644, 3516, 3388, 3260,
+ 3132, 3004, 2876, 2748, 2620, 2492, 2364,
+ 2236, 2108, 1980, 1884, 1820, 1756, 1692,
+ 1628, 1564, 1500, 1436, 1372, 1308, 1244,
+ 1180, 1116, 1052, 988, 924, 876, 844,
+ 812, 780, 748, 716, 684, 652, 620,
+ 588, 556, 524, 492, 460, 428, 396,
+ 372, 356, 340, 324, 308, 292, 276,
+ 260, 244, 228, 212, 196, 180, 164,
+ 148, 132, 120, 112, 104, 96, 88,
+ 80, 72, 64, 56, 48, 40, 32,
+ 24, 16, 8, 0
+};
+
+uint8_t _st_14linear2ulaw[0x4000] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03,
+ 0x03, 0x03, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+ 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+ 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+ 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+ 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+ 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
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+ 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85,
+ 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85,
+ 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85,
+ 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85,
+ 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85,
+ 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x85, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84, 0x84,
+ 0x84, 0x84, 0x84, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83,
+ 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x83, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82,
+ 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x82, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81, 0x81,
+ 0x81, 0x81, 0x81, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
+ 0x80, 0x80, 0x80, 0x80
+};
+
+#endif /* FAST_ULAW_CONVERSION */
+
+/* The following code was used to generate the lookup tables */
+#if 0
+int main()
+{
+ int x, y, find2a = 0;
+
+ y = 0;
+ printf("int16_t _st_alaw2linear16[256] = {\n ");
+ for (x = 0; x < 256; x++)
+ {
+ printf("%8d,", st_alaw2linear16(x));
+ y++;
+ if (y == 7)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+
+ printf("\n};\n\nuint8_t _st_13linear2alaw[0x2000] = {\n ");
+ y = 0;
+ for (x = 0; x < 0x2000; x++)
+ {
+ printf(" 0x%02x,", st_13linear2alaw((-0x1000)+x));
+ y++;
+ if (y == 12)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+
+ printf("\n};\n\nint16_t _st_ulaw2linear16[256] = {\n ");
+ y = 0;
+ for (x = 0; x < 256; x++)
+ {
+ printf("%8d,", st_ulaw2linear16(x));
+ y++;
+ if (y == 7)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+
+ printf("\n};\n\nuint8_t _st_14linear2ulaw[0x4000] = {\n ");
+ y = 0;
+ for (x = 0; x < 0x4000; x++)
+ {
+ printf(" 0x%02x,", st_14linear2ulaw((-0x2000)+x));
+ y++;
+ if (y == 12)
+ {
+ y = 0;
+ printf("\n ");
+ }
+ }
+ printf("\n};\n");
+
+}
+#endif
+
+/* The following is not used by SoX but kept for reference */
+#if 0
+/* copy from CCITT G.711 specifications */
+unsigned char _u2a[128] = { /* u- to A-law conversions */
+ 1, 1, 2, 2, 3, 3, 4, 4,
+ 5, 5, 6, 6, 7, 7, 8, 8,
+ 9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 27, 29, 31, 33, 34, 35, 36,
+ 37, 38, 39, 40, 41, 42, 43, 44,
+ 46, 48, 49, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 62,
+ 64, 65, 66, 67, 68, 69, 70, 71,
+ 72, 73, 74, 75, 76, 77, 78, 79,
+/* corrected:
+ 81, 82, 83, 84, 85, 86, 87, 88,
+ should be: */
+ 80, 82, 83, 84, 85, 86, 87, 88,
+ 89, 90, 91, 92, 93, 94, 95, 96,
+ 97, 98, 99, 100, 101, 102, 103, 104,
+ 105, 106, 107, 108, 109, 110, 111, 112,
+ 113, 114, 115, 116, 117, 118, 119, 120,
+ 121, 122, 123, 124, 125, 126, 127, 128};
+
+unsigned char _a2u[128] = { /* A- to u-law conversions */
+ 1, 3, 5, 7, 9, 11, 13, 15,
+ 16, 17, 18, 19, 20, 21, 22, 23,
+ 24, 25, 26, 27, 28, 29, 30, 31,
+ 32, 32, 33, 33, 34, 34, 35, 35,
+ 36, 37, 38, 39, 40, 41, 42, 43,
+ 44, 45, 46, 47, 48, 48, 49, 49,
+ 50, 51, 52, 53, 54, 55, 56, 57,
+ 58, 59, 60, 61, 62, 63, 64, 64,
+ 65, 66, 67, 68, 69, 70, 71, 72,
+/* corrected:
+ 73, 74, 75, 76, 77, 78, 79, 79,
+ should be: */
+ 73, 74, 75, 76, 77, 78, 79, 80,
+
+ 80, 81, 82, 83, 84, 85, 86, 87,
+ 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103,
+ 104, 105, 106, 107, 108, 109, 110, 111,
+ 112, 113, 114, 115, 116, 117, 118, 119,
+ 120, 121, 122, 123, 124, 125, 126, 127};
+
+/* A-law to u-law conversion */
+unsigned char st_alaw2ulaw(
+ unsigned char aval)
+{
+ aval &= 0xff;
+ return (unsigned char) ((aval & 0x80) ? (0xFF ^ _a2u[aval ^ 0xD5]) :
+ (0x7F ^ _a2u[aval ^ 0x55]));
+}
+
+/* u-law to A-law conversion */
+unsigned char st_ulaw2alaw(
+ unsigned char uval)
+{
+ uval &= 0xff;
+ return (unsigned char) ((uval & 0x80) ? (0xD5 ^ (_u2a[0xFF ^ uval] - 1)) :
+ (unsigned char) (0x55 ^ (_u2a[0x7F ^ uval] - 1)));
+}
+#endif
diff --git a/src/pulsecore/g711.h b/src/pulsecore/g711.h new file mode 100644 index 00000000..97cedf81 --- /dev/null +++ b/src/pulsecore/g711.h @@ -0,0 +1,40 @@ +#ifndef foog711hfoo +#define foog711hfoo + +/* g711.h - include for G711 u-law and a-law conversion routines +** +** Copyright (C) 2001 Chris Bagwell +** +** Permission to use, copy, modify, and distribute this software and its +** documentation for any purpose and without fee is hereby granted, provided +** that the above copyright notice appear in all copies and that both that +** copyright notice and this permission notice appear in supporting +** documentation. This software is provided "as is" without express or +** implied warranty. +*/ + +/** Copied from sox -- Lennart Poettring*/ + +#include <inttypes.h> + +#ifdef FAST_ALAW_CONVERSION +extern uint8_t _st_13linear2alaw[0x2000]; +extern int16_t _st_alaw2linear16[256]; +#define st_13linear2alaw(sw) (_st_13linear2alaw[(sw + 0x1000)]) +#define st_alaw2linear16(uc) (_st_alaw2linear16[uc]) +#else +unsigned char st_13linear2alaw(int16_t pcm_val); +int16_t st_alaw2linear16(unsigned char); +#endif + +#ifdef FAST_ULAW_CONVERSION +extern uint8_t _st_14linear2ulaw[0x4000]; +extern int16_t _st_ulaw2linear16[256]; +#define st_14linear2ulaw(sw) (_st_14linear2ulaw[(sw + 0x2000)]) +#define st_ulaw2linear16(uc) (_st_ulaw2linear16[uc]) +#else +unsigned char st_14linear2ulaw(int16_t pcm_val); +int16_t st_ulaw2linear16(unsigned char); +#endif + +#endif diff --git a/src/pulsecore/gccmacro.h b/src/pulsecore/gccmacro.h new file mode 100644 index 00000000..2ab999d9 --- /dev/null +++ b/src/pulsecore/gccmacro.h @@ -0,0 +1,53 @@ +#ifndef foogccmacrohfoo +#define foogccmacrohfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef __GNUC__ +#define PA_GCC_PRINTF_ATTR(a,b) __attribute__ ((format (printf, a, b))) +#else +/** If we're in GNU C, use some magic for detecting invalid format strings */ +#define PA_GCC_PRINTF_ATTR(a,b) +#endif + +#if defined(__GNUC__) && (__GNUC__ >= 4) +#define PA_GCC_SENTINEL __attribute__ ((sentinel)) +#else +/** Macro for usage of GCC's sentinel compilation warnings */ +#define PA_GCC_SENTINEL +#endif + +#ifdef __GNUC__ +#define PA_GCC_NORETURN __attribute__((noreturn)) +#else +/** Macro for no-return functions */ +#define PA_GCC_NORETURN +#endif + +#ifdef __GNUC__ +#define PA_GCC_UNUSED __attribute__ ((unused)) +#else +/** Macro for not used parameter */ +#define PA_GCC_UNUSED +#endif + +#endif diff --git a/src/pulsecore/hashmap.c b/src/pulsecore/hashmap.c new file mode 100644 index 00000000..2cddba1d --- /dev/null +++ b/src/pulsecore/hashmap.c @@ -0,0 +1,196 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/idxset.h> +#include <pulsecore/log.h> + +#include "hashmap.h" + +#define BUCKETS 1023 + +struct hashmap_entry { + struct hashmap_entry *next, *previous, *bucket_next, *bucket_previous; + unsigned hash; + const void *key; + void *value; +}; + +struct pa_hashmap { + unsigned size; + struct hashmap_entry **data; + struct hashmap_entry *first_entry; + + unsigned n_entries; + unsigned (*hash_func) (const void *p); + int (*compare_func) (const void*a, const void*b); +}; + +pa_hashmap *pa_hashmap_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b)) { + pa_hashmap *h; + h = pa_xmalloc(sizeof(pa_hashmap)); + h->data = pa_xmalloc0(sizeof(struct hashmap_entry*)*(h->size = BUCKETS)); + h->first_entry = NULL; + h->n_entries = 0; + h->hash_func = hash_func ? hash_func : pa_idxset_trivial_hash_func; + h->compare_func = compare_func ? compare_func : pa_idxset_trivial_compare_func; + return h; +} + +static void remove(pa_hashmap *h, struct hashmap_entry *e) { + assert(e); + + if (e->next) + e->next->previous = e->previous; + if (e->previous) + e->previous->next = e->next; + else + h->first_entry = e->next; + + if (e->bucket_next) + e->bucket_next->bucket_previous = e->bucket_previous; + if (e->bucket_previous) + e->bucket_previous->bucket_next = e->bucket_next; + else { + assert(e->hash < h->size); + h->data[e->hash] = e->bucket_next; + } + + pa_xfree(e); + h->n_entries--; +} + +void pa_hashmap_free(pa_hashmap*h, void (*free_func)(void *p, void *userdata), void *userdata) { + assert(h); + + while (h->first_entry) { + if (free_func) + free_func(h->first_entry->value, userdata); + remove(h, h->first_entry); + } + + pa_xfree(h->data); + pa_xfree(h); +} + +static struct hashmap_entry *get(pa_hashmap *h, unsigned hash, const void *key) { + struct hashmap_entry *e; + assert(h && hash < h->size); + + for (e = h->data[hash]; e; e = e->bucket_next) + if (h->compare_func(e->key, key) == 0) + return e; + + return NULL; +} + +int pa_hashmap_put(pa_hashmap *h, const void *key, void *value) { + struct hashmap_entry *e; + unsigned hash; + assert(h); + + hash = h->hash_func(key) % h->size; + + if ((e = get(h, hash, key))) + return -1; + + e = pa_xmalloc(sizeof(struct hashmap_entry)); + e->hash = hash; + e->key = key; + e->value = value; + + e->previous = NULL; + e->next = h->first_entry; + if (h->first_entry) + h->first_entry->previous = e; + h->first_entry = e; + + e->bucket_previous = NULL; + e->bucket_next = h->data[hash]; + if (h->data[hash]) + h->data[hash]->bucket_previous = e; + h->data[hash] = e; + + h->n_entries ++; + return 0; +} + +void* pa_hashmap_get(pa_hashmap *h, const void *key) { + unsigned hash; + struct hashmap_entry *e; + assert(h && key); + + hash = h->hash_func(key) % h->size; + + if (!(e = get(h, hash, key))) + return NULL; + + return e->value; +} + +void* pa_hashmap_remove(pa_hashmap *h, const void *key) { + struct hashmap_entry *e; + unsigned hash; + void *data; + assert(h && key); + + hash = h->hash_func(key) % h->size; + + if (!(e = get(h, hash, key))) + return NULL; + + data = e->value; + remove(h, e); + return data; +} + +unsigned pa_hashmap_size(pa_hashmap *h) { + return h->n_entries; +} + +void *pa_hashmap_iterate(pa_hashmap *h, void **state, const void **key) { + assert(h && state); + + if (!*state) + *state = h->first_entry; + else + *state = ((struct hashmap_entry*) *state)->next; + + if (!*state) { + if (key) + *key = NULL; + return NULL; + } + + if (key) + *key = ((struct hashmap_entry*) *state)->key; + + return ((struct hashmap_entry*) *state)->value; +} diff --git a/src/pulsecore/hashmap.h b/src/pulsecore/hashmap.h new file mode 100644 index 00000000..3f62adb1 --- /dev/null +++ b/src/pulsecore/hashmap.h @@ -0,0 +1,53 @@ +#ifndef foohashmaphfoo +#define foohashmaphfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +/* Simple Implementation of a hash table. Memory management is the + * user's job. It's a good idea to have the key pointer point to a + * string in the value data. */ + +typedef struct pa_hashmap pa_hashmap; + +/* Create a new hashmap. Use the specified functions for hashing and comparing objects in the map */ +pa_hashmap *pa_hashmap_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b)); + +/* Free the hash table. Calls the specified function for every value in the table. The function may be NULL */ +void pa_hashmap_free(pa_hashmap*, void (*free_func)(void *p, void *userdata), void *userdata); + +/* Returns non-zero when the entry already exists */ +int pa_hashmap_put(pa_hashmap *h, const void *key, void *value); +void* pa_hashmap_get(pa_hashmap *h, const void *key); + +/* Returns the data of the entry while removing */ +void* pa_hashmap_remove(pa_hashmap *h, const void *key); + +unsigned pa_hashmap_size(pa_hashmap *h); + +/* May be used to iterate through the hashmap. Initially the opaque + pointer *state has to be set to NULL. The hashmap may not be + modified during iteration. The key of the entry is returned in + *key, if key is non-NULL. After the last entry in the hashmap NULL + is returned. */ +void *pa_hashmap_iterate(pa_hashmap *h, void **state, const void**key); + +#endif diff --git a/src/pulsecore/idxset.c b/src/pulsecore/idxset.c new file mode 100644 index 00000000..ddce623a --- /dev/null +++ b/src/pulsecore/idxset.c @@ -0,0 +1,391 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include "idxset.h" + +typedef struct idxset_entry { + void *data; + uint32_t index; + unsigned hash_value; + + struct idxset_entry *hash_prev, *hash_next; + struct idxset_entry* iterate_prev, *iterate_next; +} idxset_entry; + +struct pa_idxset { + unsigned (*hash_func) (const void *p); + int (*compare_func)(const void *a, const void *b); + + unsigned hash_table_size, n_entries; + idxset_entry **hash_table, **array, *iterate_list_head, *iterate_list_tail; + uint32_t index, start_index, array_size; +}; + +unsigned pa_idxset_string_hash_func(const void *p) { + unsigned hash = 0; + const char *c; + + for (c = p; *c; c++) + hash = 31 * hash + *c; + + return hash; +} + +int pa_idxset_string_compare_func(const void *a, const void *b) { + return strcmp(a, b); +} + +unsigned pa_idxset_trivial_hash_func(const void *p) { + return (unsigned) (long) p; +} + +int pa_idxset_trivial_compare_func(const void *a, const void *b) { + return a != b; +} + +pa_idxset* pa_idxset_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b)) { + pa_idxset *s; + + s = pa_xnew(pa_idxset, 1); + s->hash_func = hash_func ? hash_func : pa_idxset_trivial_hash_func; + s->compare_func = compare_func ? compare_func : pa_idxset_trivial_compare_func; + s->hash_table_size = 1023; + s->hash_table = pa_xmalloc0(sizeof(idxset_entry*)*s->hash_table_size); + s->array = NULL; + s->array_size = 0; + s->index = 0; + s->start_index = 0; + s->n_entries = 0; + + s->iterate_list_head = s->iterate_list_tail = NULL; + + return s; +} + +void pa_idxset_free(pa_idxset *s, void (*free_func) (void *p, void *userdata), void *userdata) { + assert(s); + + while (s->iterate_list_head) { + idxset_entry *e = s->iterate_list_head; + s->iterate_list_head = s->iterate_list_head->iterate_next; + + if (free_func) + free_func(e->data, userdata); + pa_xfree(e); + } + + pa_xfree(s->hash_table); + pa_xfree(s->array); + pa_xfree(s); +} + +static idxset_entry* hash_scan(pa_idxset *s, idxset_entry* e, const void *p) { + assert(p); + + assert(s->compare_func); + for (; e; e = e->hash_next) + if (s->compare_func(e->data, p) == 0) + return e; + + return NULL; +} + +static void extend_array(pa_idxset *s, uint32_t idx) { + uint32_t i, j, l; + idxset_entry** n; + assert(idx >= s->start_index); + + if (idx < s->start_index + s->array_size) + return; + + for (i = 0; i < s->array_size; i++) + if (s->array[i]) + break; + + l = idx - s->start_index - i + 100; + n = pa_xnew0(idxset_entry*, l); + + for (j = 0; j < s->array_size-i; j++) + n[j] = s->array[i+j]; + + pa_xfree(s->array); + + s->array = n; + s->array_size = l; + s->start_index += i; +} + +static idxset_entry** array_index(pa_idxset*s, uint32_t idx) { + if (idx >= s->start_index + s->array_size) + return NULL; + + if (idx < s->start_index) + return NULL; + + return s->array + (idx - s->start_index); +} + +int pa_idxset_put(pa_idxset*s, void *p, uint32_t *idx) { + unsigned h; + idxset_entry *e, **a; + assert(s && p); + + assert(s->hash_func); + h = s->hash_func(p) % s->hash_table_size; + + assert(s->hash_table); + if ((e = hash_scan(s, s->hash_table[h], p))) { + if (idx) + *idx = e->index; + + return -1; + } + + e = pa_xmalloc(sizeof(idxset_entry)); + e->data = p; + e->index = s->index++; + e->hash_value = h; + + /* Insert into hash table */ + e->hash_next = s->hash_table[h]; + e->hash_prev = NULL; + if (s->hash_table[h]) + s->hash_table[h]->hash_prev = e; + s->hash_table[h] = e; + + /* Insert into array */ + extend_array(s, e->index); + a = array_index(s, e->index); + assert(a && !*a); + *a = e; + + /* Insert into linked list */ + e->iterate_next = NULL; + e->iterate_prev = s->iterate_list_tail; + if (s->iterate_list_tail) { + assert(s->iterate_list_head); + s->iterate_list_tail->iterate_next = e; + } else { + assert(!s->iterate_list_head); + s->iterate_list_head = e; + } + s->iterate_list_tail = e; + + s->n_entries++; + assert(s->n_entries >= 1); + + if (idx) + *idx = e->index; + + return 0; +} + +void* pa_idxset_get_by_index(pa_idxset*s, uint32_t idx) { + idxset_entry **a; + assert(s); + + if (!(a = array_index(s, idx))) + return NULL; + + if (!*a) + return NULL; + + return (*a)->data; +} + +void* pa_idxset_get_by_data(pa_idxset*s, const void *p, uint32_t *idx) { + unsigned h; + idxset_entry *e; + assert(s && p); + + assert(s->hash_func); + h = s->hash_func(p) % s->hash_table_size; + + assert(s->hash_table); + if (!(e = hash_scan(s, s->hash_table[h], p))) + return NULL; + + if (idx) + *idx = e->index; + + return e->data; +} + +static void remove_entry(pa_idxset *s, idxset_entry *e) { + idxset_entry **a; + assert(s && e); + + /* Remove from array */ + a = array_index(s, e->index); + assert(a && *a && *a == e); + *a = NULL; + + /* Remove from linked list */ + if (e->iterate_next) + e->iterate_next->iterate_prev = e->iterate_prev; + else + s->iterate_list_tail = e->iterate_prev; + + if (e->iterate_prev) + e->iterate_prev->iterate_next = e->iterate_next; + else + s->iterate_list_head = e->iterate_next; + + /* Remove from hash table */ + if (e->hash_next) + e->hash_next->hash_prev = e->hash_prev; + + if (e->hash_prev) + e->hash_prev->hash_next = e->hash_next; + else + s->hash_table[e->hash_value] = e->hash_next; + + pa_xfree(e); + + assert(s->n_entries >= 1); + s->n_entries--; +} + +void* pa_idxset_remove_by_index(pa_idxset*s, uint32_t idx) { + idxset_entry **a; + void *data; + + assert(s); + + if (!(a = array_index(s, idx))) + return NULL; + + data = (*a)->data; + remove_entry(s, *a); + + return data; +} + +void* pa_idxset_remove_by_data(pa_idxset*s, const void *data, uint32_t *idx) { + idxset_entry *e; + unsigned h; + void *r; + + assert(s->hash_func); + h = s->hash_func(data) % s->hash_table_size; + + assert(s->hash_table); + if (!(e = hash_scan(s, s->hash_table[h], data))) + return NULL; + + r = e->data; + if (idx) + *idx = e->index; + + remove_entry(s, e); + + return r; +} + +void* pa_idxset_rrobin(pa_idxset *s, uint32_t *idx) { + idxset_entry **a, *e = NULL; + assert(s && idx); + + if ((a = array_index(s, *idx)) && *a) + e = (*a)->iterate_next; + + if (!e) + e = s->iterate_list_head; + + if (!e) + return NULL; + + *idx = e->index; + return e->data; +} + +void* pa_idxset_first(pa_idxset *s, uint32_t *idx) { + assert(s); + + if (!s->iterate_list_head) + return NULL; + + if (idx) + *idx = s->iterate_list_head->index; + return s->iterate_list_head->data; +} + +void *pa_idxset_next(pa_idxset *s, uint32_t *idx) { + idxset_entry **a, *e = NULL; + assert(s && idx); + + if ((a = array_index(s, *idx)) && *a) + e = (*a)->iterate_next; + + if (e) { + *idx = e->index; + return e->data; + } else { + *idx = PA_IDXSET_INVALID; + return NULL; + } +} + + +int pa_idxset_foreach(pa_idxset*s, int (*func)(void *p, uint32_t idx, int *del, void*userdata), void *userdata) { + idxset_entry *e; + assert(s && func); + + e = s->iterate_list_head; + while (e) { + int del = 0, r; + idxset_entry *n = e->iterate_next; + + r = func(e->data, e->index, &del, userdata); + + if (del) + remove_entry(s, e); + + if (r < 0) + return r; + + e = n; + } + + return 0; +} + +unsigned pa_idxset_size(pa_idxset*s) { + assert(s); + return s->n_entries; +} + +int pa_idxset_isempty(pa_idxset *s) { + assert(s); + return s->n_entries == 0; +} + diff --git a/src/pulsecore/idxset.h b/src/pulsecore/idxset.h new file mode 100644 index 00000000..3d0bc75f --- /dev/null +++ b/src/pulsecore/idxset.h @@ -0,0 +1,94 @@ +#ifndef fooidxsethfoo +#define fooidxsethfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +/* A combination of a set and a dynamic array. Entries are indexable + * both through a numeric automatically generated index and the entry's + * data pointer. As usual, memory management is the user's job. */ + +/* A special index value denoting the invalid index. */ +#define PA_IDXSET_INVALID ((uint32_t) -1) + +/* Generic implementations for hash and comparison functions. Just + * compares the pointer or calculates the hash value directly from the + * pointer value. */ +unsigned pa_idxset_trivial_hash_func(const void *p); +int pa_idxset_trivial_compare_func(const void *a, const void *b); + +/* Generic implementations for hash and comparison functions for strings. */ +unsigned pa_idxset_string_hash_func(const void *p); +int pa_idxset_string_compare_func(const void *a, const void *b); + +typedef struct pa_idxset pa_idxset; + +/* Instantiate a new idxset with the specified hash and comparison functions */ +pa_idxset* pa_idxset_new(unsigned (*hash_func) (const void *p), int (*compare_func) (const void*a, const void*b)); + +/* Free the idxset. When the idxset is not empty the specified function is called for every entry contained */ +void pa_idxset_free(pa_idxset *s, void (*free_func) (void *p, void *userdata), void *userdata); + +/* Store a new item in the idxset. The index of the item is returned in *idx */ +int pa_idxset_put(pa_idxset*s, void *p, uint32_t *idx); + +/* Get the entry by its idx */ +void* pa_idxset_get_by_index(pa_idxset*s, uint32_t idx); + +/* Get the entry by its data. The idx is returned in *index */ +void* pa_idxset_get_by_data(pa_idxset*s, const void *p, uint32_t *idx); + +/* Similar to pa_idxset_get_by_index(), but removes the entry from the idxset. */ +void* pa_idxset_remove_by_index(pa_idxset*s, uint32_t idx); + +/* Similar to pa_idxset_get_by_data(), but removes the entry from the idxset */ +void* pa_idxset_remove_by_data(pa_idxset*s, const void *p, uint32_t *idx); + +/* This may be used to iterate through all entries. When called with + an invalid index value it returns the first entry, otherwise the + next following. The function is best called with *idx = + PA_IDXSET_VALID first. It is safe to manipulate the idxset between + the calls. It is not guaranteed that all entries have already been + returned before the an entry is returned the second time.*/ +void* pa_idxset_rrobin(pa_idxset *s, uint32_t *idx); + +/* Return the oldest entry in the idxset. Fill in its index in *idx. */ +void* pa_idxset_first(pa_idxset *s, uint32_t *idx); + +/* Return the entry following the entry indexed by *idx. After the + * call *index contains the index of the returned + * object. pa_idxset_first() and pa_idxset_next() may be used to + * iterate through the set.*/ +void *pa_idxset_next(pa_idxset *s, uint32_t *idx); + +/* Call a function for every item in the set. If the callback function + returns -1, the loop is terminated. If *del is set to non-zero that + specific item is removed. It is not safe to call any other + functions on the idxset while pa_idxset_foreach is executed. */ +int pa_idxset_foreach(pa_idxset*s, int (*func)(void *p, uint32_t idx, int *del, void*userdata), void *userdata); + +unsigned pa_idxset_size(pa_idxset*s); + +int pa_idxset_isempty(pa_idxset *s); + +#endif diff --git a/src/pulsecore/inet_ntop.c b/src/pulsecore/inet_ntop.c new file mode 100644 index 00000000..483c3e26 --- /dev/null +++ b/src/pulsecore/inet_ntop.c @@ -0,0 +1,80 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <errno.h> +#include <assert.h> + +#ifndef HAVE_INET_NTOP + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif + +#include "winsock.h" + +#include "inet_ntop.h" + +const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt) { + struct in_addr *in = (struct in_addr*)src; + struct in6_addr *in6 = (struct in6_addr*)src; + + assert(src && dst); + + switch (af) { + case AF_INET: + snprintf(dst, cnt, "%d.%d.%d.%d", +#ifdef WORDS_BIGENDIAN + (int)(in->s_addr >> 24) & 0xff, + (int)(in->s_addr >> 16) & 0xff, + (int)(in->s_addr >> 8) & 0xff, + (int)(in->s_addr >> 0) & 0xff); +#else + (int)(in->s_addr >> 0) & 0xff, + (int)(in->s_addr >> 8) & 0xff, + (int)(in->s_addr >> 16) & 0xff, + (int)(in->s_addr >> 24) & 0xff); +#endif + break; + case AF_INET6: + snprintf(dst, cnt, "%x:%x:%x:%x:%x:%x:%x:%x", + in6->s6_addr[ 0] << 8 | in6->s6_addr[ 1], + in6->s6_addr[ 2] << 8 | in6->s6_addr[ 3], + in6->s6_addr[ 4] << 8 | in6->s6_addr[ 5], + in6->s6_addr[ 6] << 8 | in6->s6_addr[ 7], + in6->s6_addr[ 8] << 8 | in6->s6_addr[ 9], + in6->s6_addr[10] << 8 | in6->s6_addr[11], + in6->s6_addr[12] << 8 | in6->s6_addr[13], + in6->s6_addr[14] << 8 | in6->s6_addr[15]); + break; + default: + errno = EAFNOSUPPORT; + return NULL; + } + + return dst; +} + +#endif /* INET_NTOP */ diff --git a/src/pulsecore/inet_ntop.h b/src/pulsecore/inet_ntop.h new file mode 100644 index 00000000..7fb67b44 --- /dev/null +++ b/src/pulsecore/inet_ntop.h @@ -0,0 +1,12 @@ +#ifndef fooinet_ntophfoo +#define fooinet_ntophfoo + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif + +#include "winsock.h" + +const char *inet_ntop(int af, const void *src, char *dst, socklen_t cnt); + +#endif diff --git a/src/pulsecore/inet_pton.c b/src/pulsecore/inet_pton.c new file mode 100644 index 00000000..7b6bbc31 --- /dev/null +++ b/src/pulsecore/inet_pton.c @@ -0,0 +1,62 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <errno.h> +#include <assert.h> + +#ifndef HAVE_INET_PTON + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif + +#include "winsock.h" + +#include "inet_pton.h" + +int inet_pton(int af, const char *src, void *dst) { + struct in_addr *in = (struct in_addr*)dst; + struct in6_addr *in6 = (struct in6_addr*)dst; + + assert(src && dst); + + switch (af) { + case AF_INET: + in->s_addr = inet_addr(src); + if (in->s_addr == INADDR_NONE) + return 0; + break; + case AF_INET6: + /* FIXME */ + default: + errno = EAFNOSUPPORT; + return -1; + } + + return 1; +} + +#endif /* INET_PTON */ diff --git a/src/pulsecore/inet_pton.h b/src/pulsecore/inet_pton.h new file mode 100644 index 00000000..111b4a07 --- /dev/null +++ b/src/pulsecore/inet_pton.h @@ -0,0 +1,12 @@ +#ifndef fooinet_ptonhfoo +#define fooinet_ptonhfoo + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif + +#include "winsock.h" + +int inet_pton(int af, const char *src, void *dst); + +#endif diff --git a/src/pulsecore/iochannel.c b/src/pulsecore/iochannel.c new file mode 100644 index 00000000..8a19094a --- /dev/null +++ b/src/pulsecore/iochannel.c @@ -0,0 +1,417 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_SYS_UN_H +#include <sys/un.h> +#endif + +#include "winsock.h" + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-error.h> +#include <pulsecore/core-util.h> +#include <pulsecore/socket-util.h> +#include <pulsecore/log.h> + +#include "iochannel.h" + +struct pa_iochannel { + int ifd, ofd; + pa_mainloop_api* mainloop; + + pa_iochannel_cb_t callback; + void*userdata; + + int readable; + int writable; + int hungup; + + int no_close; + + pa_io_event* input_event, *output_event; +}; + +static void enable_mainloop_sources(pa_iochannel *io) { + assert(io); + + if (io->input_event == io->output_event && io->input_event) { + pa_io_event_flags_t f = PA_IO_EVENT_NULL; + assert(io->input_event); + + if (!io->readable) + f |= PA_IO_EVENT_INPUT; + if (!io->writable) + f |= PA_IO_EVENT_OUTPUT; + + io->mainloop->io_enable(io->input_event, f); + } else { + if (io->input_event) + io->mainloop->io_enable(io->input_event, io->readable ? PA_IO_EVENT_NULL : PA_IO_EVENT_INPUT); + if (io->output_event) + io->mainloop->io_enable(io->output_event, io->writable ? PA_IO_EVENT_NULL : PA_IO_EVENT_OUTPUT); + } +} + +static void callback(pa_mainloop_api* m, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) { + pa_iochannel *io = userdata; + int changed = 0; + + assert(m); + assert(e); + assert(fd >= 0); + assert(userdata); + + if ((f & (PA_IO_EVENT_HANGUP|PA_IO_EVENT_ERROR)) && !io->hungup) { + io->hungup = 1; + changed = 1; + } + + if ((f & PA_IO_EVENT_INPUT) && !io->readable) { + io->readable = 1; + changed = 1; + assert(e == io->input_event); + } + + if ((f & PA_IO_EVENT_OUTPUT) && !io->writable) { + io->writable = 1; + changed = 1; + assert(e == io->output_event); + } + + if (changed) { + enable_mainloop_sources(io); + + if (io->callback) + io->callback(io, io->userdata); + } +} + +pa_iochannel* pa_iochannel_new(pa_mainloop_api*m, int ifd, int ofd) { + pa_iochannel *io; + + assert(m); + assert(ifd >= 0 || ofd >= 0); + + io = pa_xnew(pa_iochannel, 1); + io->ifd = ifd; + io->ofd = ofd; + io->mainloop = m; + + io->userdata = NULL; + io->callback = NULL; + io->readable = 0; + io->writable = 0; + io->hungup = 0; + io->no_close = 0; + + io->input_event = io->output_event = NULL; + + if (ifd == ofd) { + assert(ifd >= 0); + pa_make_nonblock_fd(io->ifd); + io->input_event = io->output_event = m->io_new(m, ifd, PA_IO_EVENT_INPUT|PA_IO_EVENT_OUTPUT, callback, io); + } else { + + if (ifd >= 0) { + pa_make_nonblock_fd(io->ifd); + io->input_event = m->io_new(m, ifd, PA_IO_EVENT_INPUT, callback, io); + } + + if (ofd >= 0) { + pa_make_nonblock_fd(io->ofd); + io->output_event = m->io_new(m, ofd, PA_IO_EVENT_OUTPUT, callback, io); + } + } + + return io; +} + +void pa_iochannel_free(pa_iochannel*io) { + assert(io); + + if (io->input_event) + io->mainloop->io_free(io->input_event); + + if (io->output_event && (io->output_event != io->input_event)) + io->mainloop->io_free(io->output_event); + + if (!io->no_close) { + if (io->ifd >= 0) + + close(io->ifd); + if (io->ofd >= 0 && io->ofd != io->ifd) + close(io->ofd); + } + + pa_xfree(io); +} + +int pa_iochannel_is_readable(pa_iochannel*io) { + assert(io); + + return io->readable || io->hungup; +} + +int pa_iochannel_is_writable(pa_iochannel*io) { + assert(io); + + return io->writable && !io->hungup; +} + +int pa_iochannel_is_hungup(pa_iochannel*io) { + assert(io); + + return io->hungup; +} + +ssize_t pa_iochannel_write(pa_iochannel*io, const void*data, size_t l) { + ssize_t r; + + assert(io); + assert(data); + assert(l); + assert(io->ofd >= 0); + + r = pa_write(io->ofd, data, l); + if (r >= 0) { + io->writable = 0; + enable_mainloop_sources(io); + } + + return r; +} + +ssize_t pa_iochannel_read(pa_iochannel*io, void*data, size_t l) { + ssize_t r; + + assert(io); + assert(data); + assert(io->ifd >= 0); + + r = pa_read(io->ifd, data, l); + if (r >= 0) { + io->readable = 0; + enable_mainloop_sources(io); + } + + return r; +} + +#ifdef SCM_CREDENTIALS + +int pa_iochannel_creds_supported(pa_iochannel *io) { + struct sockaddr_un sa; + socklen_t l; + + assert(io); + assert(io->ifd >= 0); + assert(io->ofd == io->ifd); + + l = sizeof(sa); + + if (getsockname(io->ifd, (struct sockaddr*) &sa, &l) < 0) + return 0; + + return sa.sun_family == AF_UNIX; +} + +int pa_iochannel_creds_enable(pa_iochannel *io) { + int t = 1; + + assert(io); + assert(io->ifd >= 0); + + if (setsockopt(io->ifd, SOL_SOCKET, SO_PASSCRED, &t, sizeof(t)) < 0) { + pa_log_error("setsockopt(SOL_SOCKET, SO_PASSCRED): %s", pa_cstrerror(errno)); + return -1; + } + + return 0; +} + +ssize_t pa_iochannel_write_with_creds(pa_iochannel*io, const void*data, size_t l) { + ssize_t r; + struct msghdr mh; + struct iovec iov; + uint8_t cmsg_data[CMSG_SPACE(sizeof(struct ucred))]; + struct ucred *ucred; + struct cmsghdr *cmsg; + + assert(io); + assert(data); + assert(l); + assert(io->ofd >= 0); + + memset(&iov, 0, sizeof(iov)); + iov.iov_base = (void*) data; + iov.iov_len = l; + + memset(cmsg_data, 0, sizeof(cmsg_data)); + cmsg = (struct cmsghdr*) cmsg_data; + cmsg->cmsg_len = CMSG_LEN(sizeof(struct ucred)); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_CREDENTIALS; + + ucred = (struct ucred*) CMSG_DATA(cmsg); + ucred->pid = getpid(); + ucred->uid = getuid(); + ucred->gid = getgid(); + + memset(&mh, 0, sizeof(mh)); + mh.msg_name = NULL; + mh.msg_namelen = 0; + mh.msg_iov = &iov; + mh.msg_iovlen = 1; + mh.msg_control = cmsg_data; + mh.msg_controllen = sizeof(cmsg_data); + mh.msg_flags = 0; + + if ((r = sendmsg(io->ofd, &mh, MSG_NOSIGNAL)) >= 0) { + io->writable = 0; + enable_mainloop_sources(io); + } + + return r; +} + +ssize_t pa_iochannel_read_with_creds(pa_iochannel*io, void*data, size_t l, struct ucred *ucred, int *creds_valid) { + ssize_t r; + struct msghdr mh; + struct iovec iov; + uint8_t cmsg_data[CMSG_SPACE(sizeof(struct ucred))]; + + assert(io); + assert(data); + assert(l); + assert(io->ifd >= 0); + assert(ucred); + assert(creds_valid); + + memset(&iov, 0, sizeof(iov)); + iov.iov_base = data; + iov.iov_len = l; + + memset(cmsg_data, 0, sizeof(cmsg_data)); + + memset(&mh, 0, sizeof(mh)); + mh.msg_name = NULL; + mh.msg_namelen = 0; + mh.msg_iov = &iov; + mh.msg_iovlen = 1; + mh.msg_control = cmsg_data; + mh.msg_controllen = sizeof(cmsg_data); + mh.msg_flags = 0; + + if ((r = recvmsg(io->ifd, &mh, MSG_NOSIGNAL)) >= 0) { + struct cmsghdr *cmsg; + + *creds_valid = 0; + + for (cmsg = CMSG_FIRSTHDR(&mh); cmsg; cmsg = CMSG_NXTHDR(&mh, cmsg)) { + + if (cmsg->cmsg_level == SOL_SOCKET && cmsg->cmsg_type == SCM_CREDENTIALS) { + assert(cmsg->cmsg_len == CMSG_LEN(sizeof(struct ucred))); + memcpy(ucred, CMSG_DATA(cmsg), sizeof(struct ucred)); + *creds_valid = 1; + break; + } + } + + io->readable = 0; + enable_mainloop_sources(io); + } + + return r; +} +#else /* SCM_CREDENTIALS */ + +int pa_iochannel_creds_supported(pa_iochannel *io) { + return 0; +} + +int pa_iochannel_creds_enable(pa_iochannel *io) { + return -1; +} + +ssize_t pa_iochannel_write_with_creds(pa_iochannel*io, const void*data, size_t l) { + pa_log_error("pa_iochannel_write_with_creds() not supported."); + return -1; +} + +ssize_t pa_iochannel_read_with_creds(pa_iochannel*io, void*data, size_t l, struct ucred *ucred, int *creds_valid) { + pa_log_error("pa_iochannel_read_with_creds() not supported."); + return -1; +} + +#endif /* SCM_CREDENTIALS */ + +void pa_iochannel_set_callback(pa_iochannel*io, pa_iochannel_cb_t _callback, void *userdata) { + assert(io); + + io->callback = _callback; + io->userdata = userdata; +} + +void pa_iochannel_set_noclose(pa_iochannel*io, int b) { + assert(io); + + io->no_close = b; +} + +void pa_iochannel_socket_peer_to_string(pa_iochannel*io, char*s, size_t l) { + assert(io); + assert(s); + assert(l); + + pa_socket_peer_to_string(io->ifd, s, l); +} + +int pa_iochannel_socket_set_rcvbuf(pa_iochannel *io, size_t l) { + assert(io); + + return pa_socket_set_rcvbuf(io->ifd, l); +} + +int pa_iochannel_socket_set_sndbuf(pa_iochannel *io, size_t l) { + assert(io); + + return pa_socket_set_sndbuf(io->ofd, l); +} + +pa_mainloop_api* pa_iochannel_get_mainloop_api(pa_iochannel *io) { + assert(io); + + return io->mainloop; +} diff --git a/src/pulsecore/iochannel.h b/src/pulsecore/iochannel.h new file mode 100644 index 00000000..64cf331e --- /dev/null +++ b/src/pulsecore/iochannel.h @@ -0,0 +1,81 @@ +#ifndef fooiochannelhfoo +#define fooiochannelhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> + +#include <pulse/mainloop-api.h> + +/* A wrapper around UNIX file descriptors for attaching them to the a + main event loop. Everytime new data may be read or be written to + the channel a callback function is called. It is safe to destroy + the calling iochannel object from the callback */ + +/* When pa_iochannel_is_readable() returns non-zero, the user has to + * call this function in a loop until it is no longer set or EOF + * reached. Otherwise strange things may happen when an EOF is + * reached. */ + +typedef struct pa_iochannel pa_iochannel; + +/* Create a new IO channel for the specified file descriptors for +input resp. output. It is safe to pass the same file descriptor for +both parameters (in case of full-duplex channels). For a simplex +channel specify -1 for the other direction. */ + +pa_iochannel* pa_iochannel_new(pa_mainloop_api*m, int ifd, int ofd); +void pa_iochannel_free(pa_iochannel*io); + +ssize_t pa_iochannel_write(pa_iochannel*io, const void*data, size_t l); +ssize_t pa_iochannel_read(pa_iochannel*io, void*data, size_t l); + +int pa_iochannel_creds_supported(pa_iochannel *io); +int pa_iochannel_creds_enable(pa_iochannel *io); + +struct ucred; + +ssize_t pa_iochannel_write_with_creds(pa_iochannel*io, const void*data, size_t l); +ssize_t pa_iochannel_read_with_creds(pa_iochannel*io, void*data, size_t l, struct ucred *ucred, int *creds_valid); + +int pa_iochannel_is_readable(pa_iochannel*io); +int pa_iochannel_is_writable(pa_iochannel*io); +int pa_iochannel_is_hungup(pa_iochannel*io); + +/* Don't close the file descirptors when the io channel is freed. By + * default the file descriptors are closed. */ +void pa_iochannel_set_noclose(pa_iochannel*io, int b); + +/* Set the callback function that is called whenever data becomes available for read or write */ +typedef void (*pa_iochannel_cb_t)(pa_iochannel*io, void *userdata); +void pa_iochannel_set_callback(pa_iochannel*io, pa_iochannel_cb_t callback, void *userdata); + +/* In case the file descriptor is a socket, return a pretty-printed string in *s which describes the peer connected */ +void pa_iochannel_socket_peer_to_string(pa_iochannel*io, char*s, size_t l); + +/* Use setsockopt() to tune the recieve and send buffers of TCP sockets */ +int pa_iochannel_socket_set_rcvbuf(pa_iochannel*io, size_t l); +int pa_iochannel_socket_set_sndbuf(pa_iochannel*io, size_t l); + +pa_mainloop_api* pa_iochannel_get_mainloop_api(pa_iochannel *io); + +#endif diff --git a/src/pulsecore/ioline.c b/src/pulsecore/ioline.c new file mode 100644 index 00000000..9c9900f8 --- /dev/null +++ b/src/pulsecore/ioline.c @@ -0,0 +1,394 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <errno.h> +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-error.h> +#include <pulsecore/log.h> + +#include "ioline.h" + +#define BUFFER_LIMIT (64*1024) +#define READ_SIZE (1024) + +struct pa_ioline { + pa_iochannel *io; + pa_defer_event *defer_event; + pa_mainloop_api *mainloop; + int ref; + int dead; + + char *wbuf; + size_t wbuf_length, wbuf_index, wbuf_valid_length; + + char *rbuf; + size_t rbuf_length, rbuf_index, rbuf_valid_length; + + void (*callback)(pa_ioline*io, const char *s, void *userdata); + void *userdata; + + int defer_close; +}; + +static void io_callback(pa_iochannel*io, void *userdata); +static void defer_callback(pa_mainloop_api*m, pa_defer_event*e, void *userdata); + +pa_ioline* pa_ioline_new(pa_iochannel *io) { + pa_ioline *l; + assert(io); + + l = pa_xnew(pa_ioline, 1); + l->io = io; + l->dead = 0; + + l->wbuf = NULL; + l->wbuf_length = l->wbuf_index = l->wbuf_valid_length = 0; + + l->rbuf = NULL; + l->rbuf_length = l->rbuf_index = l->rbuf_valid_length = 0; + + l->callback = NULL; + l->userdata = NULL; + l->ref = 1; + + l->mainloop = pa_iochannel_get_mainloop_api(io); + + l->defer_event = l->mainloop->defer_new(l->mainloop, defer_callback, l); + l->mainloop->defer_enable(l->defer_event, 0); + + l->defer_close = 0; + + pa_iochannel_set_callback(io, io_callback, l); + + return l; +} + +static void ioline_free(pa_ioline *l) { + assert(l); + + if (l->io) + pa_iochannel_free(l->io); + + if (l->defer_event) + l->mainloop->defer_free(l->defer_event); + + pa_xfree(l->wbuf); + pa_xfree(l->rbuf); + pa_xfree(l); +} + +void pa_ioline_unref(pa_ioline *l) { + assert(l); + assert(l->ref >= 1); + + if ((--l->ref) <= 0) + ioline_free(l); +} + +pa_ioline* pa_ioline_ref(pa_ioline *l) { + assert(l); + assert(l->ref >= 1); + + l->ref++; + return l; +} + +void pa_ioline_close(pa_ioline *l) { + assert(l); + assert(l->ref >= 1); + + l->dead = 1; + + if (l->io) { + pa_iochannel_free(l->io); + l->io = NULL; + } + + if (l->defer_event) { + l->mainloop->defer_free(l->defer_event); + l->defer_event = NULL; + } + + if (l->callback) + l->callback = NULL; +} + +void pa_ioline_puts(pa_ioline *l, const char *c) { + size_t len; + + assert(l); + assert(l->ref >= 1); + assert(c); + + if (l->dead) + return; + + len = strlen(c); + if (len > BUFFER_LIMIT - l->wbuf_valid_length) + len = BUFFER_LIMIT - l->wbuf_valid_length; + + if (len) { + assert(l->wbuf_length >= l->wbuf_valid_length); + + /* In case the allocated buffer is too small, enlarge it. */ + if (l->wbuf_valid_length + len > l->wbuf_length) { + size_t n = l->wbuf_valid_length+len; + char *new = pa_xmalloc(n); + if (l->wbuf) { + memcpy(new, l->wbuf+l->wbuf_index, l->wbuf_valid_length); + pa_xfree(l->wbuf); + } + l->wbuf = new; + l->wbuf_length = n; + l->wbuf_index = 0; + } else if (l->wbuf_index + l->wbuf_valid_length + len > l->wbuf_length) { + + /* In case the allocated buffer fits, but the current index is too far from the start, move it to the front. */ + memmove(l->wbuf, l->wbuf+l->wbuf_index, l->wbuf_valid_length); + l->wbuf_index = 0; + } + + assert(l->wbuf_index + l->wbuf_valid_length + len <= l->wbuf_length); + + /* Append the new string */ + memcpy(l->wbuf + l->wbuf_index + l->wbuf_valid_length, c, len); + l->wbuf_valid_length += len; + + l->mainloop->defer_enable(l->defer_event, 1); + } +} + +void pa_ioline_set_callback(pa_ioline*l, void (*callback)(pa_ioline*io, const char *s, void *userdata), void *userdata) { + assert(l); + assert(l->ref >= 1); + + l->callback = callback; + l->userdata = userdata; +} + +static void failure(pa_ioline *l, int process_leftover) { + assert(l); + assert(l->ref >= 1); + assert(!l->dead); + + if (process_leftover && l->rbuf_valid_length > 0) { + /* Pass the last missing bit to the client */ + + if (l->callback) { + char *p = pa_xstrndup(l->rbuf+l->rbuf_index, l->rbuf_valid_length); + l->callback(l, p, l->userdata); + pa_xfree(p); + } + } + + if (l->callback) { + l->callback(l, NULL, l->userdata); + l->callback = NULL; + } + + pa_ioline_close(l); +} + +static void scan_for_lines(pa_ioline *l, size_t skip) { + assert(l && l->ref >= 1 && skip < l->rbuf_valid_length); + + while (!l->dead && l->rbuf_valid_length > skip) { + char *e, *p; + size_t m; + + if (!(e = memchr(l->rbuf + l->rbuf_index + skip, '\n', l->rbuf_valid_length - skip))) + break; + + *e = 0; + + p = l->rbuf + l->rbuf_index; + m = strlen(p); + + l->rbuf_index += m+1; + l->rbuf_valid_length -= m+1; + + /* A shortcut for the next time */ + if (l->rbuf_valid_length == 0) + l->rbuf_index = 0; + + if (l->callback) + l->callback(l, p, l->userdata); + + skip = 0; + } + + /* If the buffer became too large and still no newline was found, drop it. */ + if (l->rbuf_valid_length >= BUFFER_LIMIT) + l->rbuf_index = l->rbuf_valid_length = 0; +} + +static int do_write(pa_ioline *l); + +static int do_read(pa_ioline *l) { + assert(l && l->ref >= 1); + + while (!l->dead && pa_iochannel_is_readable(l->io)) { + ssize_t r; + size_t len; + + len = l->rbuf_length - l->rbuf_index - l->rbuf_valid_length; + + /* Check if we have to enlarge the read buffer */ + if (len < READ_SIZE) { + size_t n = l->rbuf_valid_length+READ_SIZE; + + if (n >= BUFFER_LIMIT) + n = BUFFER_LIMIT; + + if (l->rbuf_length >= n) { + /* The current buffer is large enough, let's just move the data to the front */ + if (l->rbuf_valid_length) + memmove(l->rbuf, l->rbuf+l->rbuf_index, l->rbuf_valid_length); + } else { + /* Enlarge the buffer */ + char *new = pa_xmalloc(n); + if (l->rbuf_valid_length) + memcpy(new, l->rbuf+l->rbuf_index, l->rbuf_valid_length); + pa_xfree(l->rbuf); + l->rbuf = new; + l->rbuf_length = n; + } + + l->rbuf_index = 0; + } + + len = l->rbuf_length - l->rbuf_index - l->rbuf_valid_length; + + assert(len >= READ_SIZE); + + /* Read some data */ + if ((r = pa_iochannel_read(l->io, l->rbuf+l->rbuf_index+l->rbuf_valid_length, len)) <= 0) { + if (r < 0) { + pa_log(__FILE__": read(): %s", pa_cstrerror(errno)); + failure(l, 0); + } else + failure(l, 1); + + return -1; + } + + l->rbuf_valid_length += r; + + /* Look if a line has been terminated in the newly read data */ + scan_for_lines(l, l->rbuf_valid_length - r); + } + + return 0; +} + +/* Try to flush the buffer */ +static int do_write(pa_ioline *l) { + ssize_t r; + assert(l && l->ref >= 1); + + while (!l->dead && pa_iochannel_is_writable(l->io) && l->wbuf_valid_length) { + + if ((r = pa_iochannel_write(l->io, l->wbuf+l->wbuf_index, l->wbuf_valid_length)) < 0) { + pa_log(__FILE__": write(): %s", r < 0 ? pa_cstrerror(errno) : "EOF"); + failure(l, 0); + return -1; + } + + l->wbuf_index += r; + l->wbuf_valid_length -= r; + + /* A shortcut for the next time */ + if (l->wbuf_valid_length == 0) + l->wbuf_index = 0; + } + + return 0; +} + +/* Try to flush read/write data */ +static void do_work(pa_ioline *l) { + assert(l); + assert(l->ref >= 1); + + pa_ioline_ref(l); + + l->mainloop->defer_enable(l->defer_event, 0); + + if (!l->dead) + do_read(l); + + if (!l->dead) + do_write(l); + + if (l->defer_close && !l->wbuf_valid_length) + failure(l, 1); + + pa_ioline_unref(l); +} + +static void io_callback(pa_iochannel*io, void *userdata) { + pa_ioline *l = userdata; + assert(io && l && l->ref >= 1); + + do_work(l); +} + +static void defer_callback(pa_mainloop_api*m, pa_defer_event*e, void *userdata) { + pa_ioline *l = userdata; + assert(l && l->ref >= 1 && l->mainloop == m && l->defer_event == e); + + do_work(l); +} + +void pa_ioline_defer_close(pa_ioline *l) { + assert(l); + assert(l->ref >= 1); + + l->defer_close = 1; + + if (!l->wbuf_valid_length) + l->mainloop->defer_enable(l->defer_event, 1); +} + +void pa_ioline_printf(pa_ioline *l, const char *format, ...) { + char *t; + va_list ap; + + assert(l); + assert(l->ref >= 1); + + va_start(ap, format); + t = pa_vsprintf_malloc(format, ap); + va_end(ap); + + pa_ioline_puts(l, t); + pa_xfree(t); +} diff --git a/src/pulsecore/ioline.h b/src/pulsecore/ioline.h new file mode 100644 index 00000000..e736e2b3 --- /dev/null +++ b/src/pulsecore/ioline.h @@ -0,0 +1,51 @@ +#ifndef fooiolinehfoo +#define fooiolinehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/iochannel.h> +#include <pulsecore/core-util.h> + +/* An ioline wraps an iochannel for line based communication. A + * callback function is called whenever a new line has been recieved + * from the client */ + +typedef struct pa_ioline pa_ioline; + +pa_ioline* pa_ioline_new(pa_iochannel *io); +void pa_ioline_unref(pa_ioline *l); +pa_ioline* pa_ioline_ref(pa_ioline *l); +void pa_ioline_close(pa_ioline *l); + +/* Write a string to the channel */ +void pa_ioline_puts(pa_ioline *s, const char *c); + +/* Write a string to the channel */ +void pa_ioline_printf(pa_ioline *s, const char *format, ...) PA_GCC_PRINTF_ATTR(2,3); + +/* Set the callback function that is called for every recieved line */ +void pa_ioline_set_callback(pa_ioline*io, void (*callback)(pa_ioline*io, const char *s, void *userdata), void *userdata); + +/* Make sure to close the ioline object as soon as the send buffer is emptied */ +void pa_ioline_defer_close(pa_ioline *io); + +#endif diff --git a/src/pulsecore/llist.h b/src/pulsecore/llist.h new file mode 100644 index 00000000..bf3c150a --- /dev/null +++ b/src/pulsecore/llist.h @@ -0,0 +1,79 @@ +#ifndef foollistfoo +#define foollistfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +/* Some macros for maintaining doubly linked lists */ + +/* The head of the linked list. Use this in the structure that shall + * contain the head of the linked list */ +#define PA_LLIST_HEAD(t,name) t *name + +/* The pointers in the linked list's items. Use this in the item structure */ +#define PA_LLIST_FIELDS(t) t *next, *prev + +/* Initialize the list's head */ +#define PA_LLIST_HEAD_INIT(t,item) do { (item) = NULL; } while(0) + +/* Initialize a list item */ +#define PA_LLIST_INIT(t,item) do { \ + t *_item = (item); \ + assert(_item); \ + _item->prev = _item->next = NULL; \ + } while(0) + +/* Prepend an item to the list */ +#define PA_LLIST_PREPEND(t,head,item) do { \ + t **_head = &(head), *_item = (item); \ + assert(_item); \ + if ((_item->next = *_head)) \ + _item->next->prev = _item; \ + _item->prev = NULL; \ + *_head = _item; \ + } while (0) + +/* Remove an item from the list */ +#define PA_LLIST_REMOVE(t,head,item) do { \ + t **_head = &(head), *_item = (item); \ + assert(_item); \ + if (_item->next) \ + _item->next->prev = _item->prev; \ + if (_item->prev) \ + _item->prev->next = _item->next; \ + else {\ + assert(*_head == _item); \ + *_head = _item->next; \ + } \ + _item->next = _item->prev = NULL; \ + } while(0) + +#define PA_LLIST_FIND_HEAD(t,item,head) \ +do { \ + t **_head = (head), *_item = (item); \ + *_head = _item; \ + assert(_head); \ + while ((*_head)->prev) \ + *_head = (*_head)->prev; \ +} while (0) \ + + +#endif diff --git a/src/pulsecore/log.c b/src/pulsecore/log.c new file mode 100644 index 00000000..df5b140a --- /dev/null +++ b/src/pulsecore/log.c @@ -0,0 +1,211 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdarg.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> + +#ifdef HAVE_SYSLOG_H +#include <syslog.h> +#endif + +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/core-util.h> + +#include "log.h" + +#define ENV_LOGLEVEL "POLYP_LOG" + +static char *log_ident = NULL, *log_ident_local = NULL; +static pa_log_target_t log_target = PA_LOG_STDERR; +static void (*user_log_func)(pa_log_level_t l, const char *s) = NULL; +static pa_log_level_t maximal_level = PA_LOG_NOTICE; + +#ifdef HAVE_SYSLOG_H +static const int level_to_syslog[] = { + [PA_LOG_ERROR] = LOG_ERR, + [PA_LOG_WARN] = LOG_WARNING, + [PA_LOG_NOTICE] = LOG_NOTICE, + [PA_LOG_INFO] = LOG_INFO, + [PA_LOG_DEBUG] = LOG_DEBUG +}; +#endif + +void pa_log_set_ident(const char *p) { + if (log_ident) + pa_xfree(log_ident); + if (log_ident_local) + pa_xfree(log_ident_local); + + log_ident = pa_xstrdup(p); + log_ident_local = pa_utf8_to_locale(log_ident); + if (!log_ident_local) + log_ident_local = pa_xstrdup(log_ident); +} + +void pa_log_set_maximal_level(pa_log_level_t l) { + assert(l < PA_LOG_LEVEL_MAX); + maximal_level = l; +} + +void pa_log_set_target(pa_log_target_t t, void (*func)(pa_log_level_t l, const char*s)) { + assert(t == PA_LOG_USER || !func); + log_target = t; + user_log_func = func; +} + +void pa_log_levelv(pa_log_level_t level, const char *format, va_list ap) { + const char *e; + char *text, *t, *n; + + assert(level < PA_LOG_LEVEL_MAX); + + if ((e = getenv(ENV_LOGLEVEL))) + maximal_level = atoi(e); + + if (level > maximal_level) + return; + + text = pa_vsprintf_malloc(format, ap); + + if (!pa_utf8_valid(text)) + pa_log_level(level, __FILE__": invalid UTF-8 string following below:"); + + for (t = text; t; t = n) { + if ((n = strchr(t, '\n'))) { + *n = 0; + n++; + } + + if (!*t) + continue; + + switch (log_target) { + case PA_LOG_STDERR: { + const char *prefix = "", *suffix = ""; + char *local_t; + +#ifndef OS_IS_WIN32 + /* Yes indeed. Useless, but fun! */ + if (isatty(STDERR_FILENO)) { + if (level <= PA_LOG_ERROR) { + prefix = "\x1B[1;31m"; + suffix = "\x1B[0m"; + } else if (level <= PA_LOG_WARN) { + prefix = "\x1B[1m"; + suffix = "\x1B[0m"; + } + } +#endif + + local_t = pa_utf8_to_locale(t); + if (!local_t) + fprintf(stderr, "%s%s%s\n", prefix, t, suffix); + else { + fprintf(stderr, "%s%s%s\n", prefix, local_t, suffix); + pa_xfree(local_t); + } + + break; + } + +#ifdef HAVE_SYSLOG_H + case PA_LOG_SYSLOG: { + char *local_t; + + openlog(log_ident_local ? log_ident_local : "???", LOG_PID, LOG_USER); + + local_t = pa_utf8_to_locale(t); + if (!local_t) + syslog(level_to_syslog[level], "%s", t); + else { + syslog(level_to_syslog[level], "%s", local_t); + pa_xfree(local_t); + } + + closelog(); + break; + } +#endif + + case PA_LOG_USER: + user_log_func(level, t); + break; + + case PA_LOG_NULL: + default: + break; + } + } + + pa_xfree(text); + +} + +void pa_log_level(pa_log_level_t level, const char *format, ...) { + va_list ap; + va_start(ap, format); + pa_log_levelv(level, format, ap); + va_end(ap); +} + +void pa_log_debug(const char *format, ...) { + va_list ap; + va_start(ap, format); + pa_log_levelv(PA_LOG_DEBUG, format, ap); + va_end(ap); +} + +void pa_log_info(const char *format, ...) { + va_list ap; + va_start(ap, format); + pa_log_levelv(PA_LOG_INFO, format, ap); + va_end(ap); +} + +void pa_log_notice(const char *format, ...) { + va_list ap; + va_start(ap, format); + pa_log_levelv(PA_LOG_INFO, format, ap); + va_end(ap); +} + +void pa_log_warn(const char *format, ...) { + va_list ap; + va_start(ap, format); + pa_log_levelv(PA_LOG_WARN, format, ap); + va_end(ap); +} + +void pa_log_error(const char *format, ...) { + va_list ap; + va_start(ap, format); + pa_log_levelv(PA_LOG_ERROR, format, ap); + va_end(ap); +} diff --git a/src/pulsecore/log.h b/src/pulsecore/log.h new file mode 100644 index 00000000..7bf4e407 --- /dev/null +++ b/src/pulsecore/log.h @@ -0,0 +1,69 @@ +#ifndef foologhfoo +#define foologhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <stdarg.h> +#include <pulsecore/gccmacro.h> + +/* A simple logging subsystem */ + +/* Where to log to */ +typedef enum pa_log_target { + PA_LOG_STDERR, /* default */ + PA_LOG_SYSLOG, + PA_LOG_USER, /* to user specified function */ + PA_LOG_NULL /* to /dev/null */ +} pa_log_target_t; + +typedef enum pa_log_level { + PA_LOG_ERROR = 0, /* Error messages */ + PA_LOG_WARN = 1, /* Warning messages */ + PA_LOG_NOTICE = 2, /* Notice messages */ + PA_LOG_INFO = 3, /* Info messages */ + PA_LOG_DEBUG = 4, /* debug message */ + PA_LOG_LEVEL_MAX +} pa_log_level_t; + +/* Set an identification for the current daemon. Used when logging to syslog. */ +void pa_log_set_ident(const char *p); + +/* Set another log target. If t is PA_LOG_USER you may specify a function that is called every log string */ +void pa_log_set_target(pa_log_target_t t, void (*func)(pa_log_level_t t, const char*s)); + +/* Minimal log level */ +void pa_log_set_maximal_level(pa_log_level_t l); + +/* Do a log line */ +void pa_log_debug(const char *format, ...) PA_GCC_PRINTF_ATTR(1,2); +void pa_log_info(const char *format, ...) PA_GCC_PRINTF_ATTR(1,2); +void pa_log_notice(const char *format, ...) PA_GCC_PRINTF_ATTR(1,2); +void pa_log_warn(const char *format, ...) PA_GCC_PRINTF_ATTR(1,2); +void pa_log_error(const char *format, ...) PA_GCC_PRINTF_ATTR(1,2); + +void pa_log_level(pa_log_level_t level, const char *format, ...) PA_GCC_PRINTF_ATTR(2,3); + +void pa_log_levelv(pa_log_level_t level, const char *format, va_list ap); + +#define pa_log pa_log_error + +#endif diff --git a/src/pulsecore/mcalign.c b/src/pulsecore/mcalign.c new file mode 100644 index 00000000..8283a7a0 --- /dev/null +++ b/src/pulsecore/mcalign.c @@ -0,0 +1,206 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include "mcalign.h" + +struct pa_mcalign { + size_t base; + pa_memchunk leftover, current; + pa_memblock_stat *memblock_stat; +}; + +pa_mcalign *pa_mcalign_new(size_t base, pa_memblock_stat *s) { + pa_mcalign *m; + assert(base); + + m = pa_xnew(pa_mcalign, 1); + + m->base = base; + pa_memchunk_reset(&m->leftover); + pa_memchunk_reset(&m->current); + m->memblock_stat = s; + + return m; +} + +void pa_mcalign_free(pa_mcalign *m) { + assert(m); + + if (m->leftover.memblock) + pa_memblock_unref(m->leftover.memblock); + + if (m->current.memblock) + pa_memblock_unref(m->current.memblock); + + pa_xfree(m); +} + +void pa_mcalign_push(pa_mcalign *m, const pa_memchunk *c) { + assert(m); + assert(c); + + assert(c->memblock); + assert(c->length > 0); + + assert(!m->current.memblock); + + /* Append to the leftover memory block */ + if (m->leftover.memblock) { + + /* Try to merge */ + if (m->leftover.memblock == c->memblock && + m->leftover.index + m->leftover.length == c->index) { + + /* Merge */ + m->leftover.length += c->length; + + /* If the new chunk is larger than m->base, move it to current */ + if (m->leftover.length >= m->base) { + m->current = m->leftover; + pa_memchunk_reset(&m->leftover); + } + + } else { + size_t l; + + /* We have to copy */ + assert(m->leftover.length < m->base); + l = m->base - m->leftover.length; + + if (l > c->length) + l = c->length; + + /* Can we use the current block? */ + pa_memchunk_make_writable(&m->leftover, m->memblock_stat, m->base); + + memcpy((uint8_t*) m->leftover.memblock->data + m->leftover.index + m->leftover.length, (uint8_t*) c->memblock->data + c->index, l); + m->leftover.length += l; + + assert(m->leftover.length <= m->base && m->leftover.length <= m->leftover.memblock->length); + + if (c->length > l) { + /* Save the remainder of the memory block */ + m->current = *c; + m->current.index += l; + m->current.length -= l; + pa_memblock_ref(m->current.memblock); + } + } + } else { + /* Nothing to merge or copy, just store it */ + + if (c->length >= m->base) + m->current = *c; + else + m->leftover = *c; + + pa_memblock_ref(c->memblock); + } +} + +int pa_mcalign_pop(pa_mcalign *m, pa_memchunk *c) { + assert(m); + assert(c); + + /* First test if there's a leftover memory block available */ + if (m->leftover.memblock) { + assert(m->leftover.length > 0 && m->leftover.length <= m->base); + + /* The leftover memory block is not yet complete */ + if (m->leftover.length < m->base) + return -1; + + /* Return the leftover memory block */ + *c = m->leftover; + pa_memchunk_reset(&m->leftover); + + /* If the current memblock is too small move it the leftover */ + if (m->current.memblock && m->current.length < m->base) { + m->leftover = m->current; + pa_memchunk_reset(&m->current); + } + + return 0; + } + + /* Now let's see if there is other data available */ + if (m->current.memblock) { + size_t l; + assert(m->current.length >= m->base); + + /* The length of the returned memory block */ + l = m->current.length; + l /= m->base; + l *= m->base; + assert(l > 0); + + /* Prepare the returned block */ + *c = m->current; + pa_memblock_ref(c->memblock); + c->length = l; + + /* Drop that from the current memory block */ + assert(l <= m->current.length); + m->current.index += l; + m->current.length -= l; + + /* In case the whole block was dropped ... */ + if (m->current.length == 0) + pa_memblock_unref(m->current.memblock); + else { + /* Move the raimainder to leftover */ + assert(m->current.length < m->base && !m->leftover.memblock); + + m->leftover = m->current; + } + + pa_memchunk_reset(&m->current); + + return 0; + } + + /* There's simply nothing */ + return -1; + +} + +size_t pa_mcalign_csize(pa_mcalign *m, size_t l) { + assert(m); + assert(l > 0); + + assert(!m->current.memblock); + + if (m->leftover.memblock) + l += m->leftover.length; + + return (l/m->base)*m->base; +} diff --git a/src/pulsecore/mcalign.h b/src/pulsecore/mcalign.h new file mode 100644 index 00000000..80e37499 --- /dev/null +++ b/src/pulsecore/mcalign.h @@ -0,0 +1,80 @@ +#ifndef foomcalignhfoo +#define foomcalignhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/memblock.h> +#include <pulsecore/memchunk.h> + +/* An alignment object, used for aligning memchunks to multiples of + * the frame size. */ + +/* Method of operation: the user creates a new mcalign object by + * calling pa_mcalign_new() with the appropriate aligning + * granularity. After that he may call pa_mcalign_push() for an input + * memchunk. After exactly one memchunk the user has to call + * pa_mcalign_pop() until it returns -1. If pa_mcalign_pop() returns + * 0, the memchunk *c is valid and aligned to the granularity. Some + * pseudocode illustrating this: + * + * pa_mcalign *a = pa_mcalign_new(4, NULL); + * + * for (;;) { + * pa_memchunk input; + * + * ... fill input ... + * + * pa_mcalign_push(m, &input); + * pa_memblock_unref(input.memblock); + * + * for (;;) { + * pa_memchunk output; + * + * if (pa_mcalign_pop(m, &output) < 0) + * break; + * + * ... consume output ... + * + * pa_memblock_unref(output.memblock); + * } + * } + * + * pa_memchunk_free(a); + * */ + +typedef struct pa_mcalign pa_mcalign; + +pa_mcalign *pa_mcalign_new(size_t base, pa_memblock_stat *s); +void pa_mcalign_free(pa_mcalign *m); + +/* Push a new memchunk into the aligner. The caller of this routine + * has to free the memchunk by himself. */ +void pa_mcalign_push(pa_mcalign *m, const pa_memchunk *c); + +/* Pop a new memchunk from the aligner. Returns 0 when sucessful, + * nonzero otherwise. */ +int pa_mcalign_pop(pa_mcalign *m, pa_memchunk *c); + +/* If we pass l bytes in now, how many bytes would we get out? */ +size_t pa_mcalign_csize(pa_mcalign *m, size_t l); + +#endif diff --git a/src/pulsecore/memblock.c b/src/pulsecore/memblock.c new file mode 100644 index 00000000..36de17fb --- /dev/null +++ b/src/pulsecore/memblock.c @@ -0,0 +1,173 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include "memblock.h" + +static void stat_add(pa_memblock*m, pa_memblock_stat *s) { + assert(m); + + if (!s) { + m->stat = NULL; + return; + } + + m->stat = pa_memblock_stat_ref(s); + s->total++; + s->allocated++; + s->total_size += m->length; + s->allocated_size += m->length; +} + +static void stat_remove(pa_memblock *m) { + assert(m); + + if (!m->stat) + return; + + m->stat->total--; + m->stat->total_size -= m->length; + + pa_memblock_stat_unref(m->stat); + m->stat = NULL; +} + +pa_memblock *pa_memblock_new(size_t length, pa_memblock_stat*s) { + pa_memblock *b = pa_xmalloc(sizeof(pa_memblock)+length); + b->type = PA_MEMBLOCK_APPENDED; + b->ref = 1; + b->length = length; + b->data = b+1; + b->free_cb = NULL; + b->read_only = 0; + stat_add(b, s); + return b; +} + +pa_memblock *pa_memblock_new_dynamic(void *d, size_t length, pa_memblock_stat*s) { + pa_memblock *b = pa_xmalloc(sizeof(pa_memblock)); + b->type = PA_MEMBLOCK_DYNAMIC; + b->ref = 1; + b->length = length; + b->data = d; + b->free_cb = NULL; + b->read_only = 0; + stat_add(b, s); + return b; +} + +pa_memblock *pa_memblock_new_fixed(void *d, size_t length, int read_only, pa_memblock_stat*s) { + pa_memblock *b = pa_xmalloc(sizeof(pa_memblock)); + b->type = PA_MEMBLOCK_FIXED; + b->ref = 1; + b->length = length; + b->data = d; + b->free_cb = NULL; + b->read_only = read_only; + stat_add(b, s); + return b; +} + +pa_memblock *pa_memblock_new_user(void *d, size_t length, void (*free_cb)(void *p), int read_only, pa_memblock_stat*s) { + pa_memblock *b; + assert(d && length && free_cb); + b = pa_xmalloc(sizeof(pa_memblock)); + b->type = PA_MEMBLOCK_USER; + b->ref = 1; + b->length = length; + b->data = d; + b->free_cb = free_cb; + b->read_only = read_only; + stat_add(b, s); + return b; +} + +pa_memblock* pa_memblock_ref(pa_memblock*b) { + assert(b); + assert(b->ref >= 1); + + b->ref++; + return b; +} + +void pa_memblock_unref(pa_memblock*b) { + assert(b); + assert(b->ref >= 1); + + if ((--(b->ref)) == 0) { + stat_remove(b); + + if (b->type == PA_MEMBLOCK_USER) { + assert(b->free_cb); + b->free_cb(b->data); + } else if (b->type == PA_MEMBLOCK_DYNAMIC) + pa_xfree(b->data); + + pa_xfree(b); + } +} + +void pa_memblock_unref_fixed(pa_memblock *b) { + assert(b && b->ref >= 1 && b->type == PA_MEMBLOCK_FIXED); + + if (b->ref == 1) + pa_memblock_unref(b); + else { + b->data = pa_xmemdup(b->data, b->length); + b->type = PA_MEMBLOCK_DYNAMIC; + b->ref--; + } +} + +pa_memblock_stat* pa_memblock_stat_new(void) { + pa_memblock_stat *s; + + s = pa_xmalloc(sizeof(pa_memblock_stat)); + s->ref = 1; + s->total = s->total_size = s->allocated = s->allocated_size = 0; + + return s; +} + +void pa_memblock_stat_unref(pa_memblock_stat *s) { + assert(s && s->ref >= 1); + + if (!(--(s->ref))) { + assert(!s->total); + pa_xfree(s); + } +} + +pa_memblock_stat * pa_memblock_stat_ref(pa_memblock_stat *s) { + assert(s); + s->ref++; + return s; +} diff --git a/src/pulsecore/memblock.h b/src/pulsecore/memblock.h new file mode 100644 index 00000000..f8545836 --- /dev/null +++ b/src/pulsecore/memblock.h @@ -0,0 +1,86 @@ +#ifndef foomemblockhfoo +#define foomemblockhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> +#include <inttypes.h> + +/* A pa_memblock is a reference counted memory block. Polypaudio + * passed references to pa_memblocks around instead of copying + * data. See pa_memchunk for a structure that describes parts of + * memory blocks. */ + +/* The type of memory this block points to */ +typedef enum pa_memblock_type { + PA_MEMBLOCK_FIXED, /* data is a pointer to fixed memory that needs not to be freed */ + PA_MEMBLOCK_APPENDED, /* The most common kind: the data is appended to the memory block */ + PA_MEMBLOCK_DYNAMIC, /* data is a pointer to some memory allocated with pa_xmalloc() */ + PA_MEMBLOCK_USER /* User supplied memory, to be freed with free_cb */ +} pa_memblock_type_t; + +/* A structure of keeping memory block statistics */ +/* Maintains statistics about memory blocks */ +typedef struct pa_memblock_stat { + int ref; + unsigned total; + unsigned total_size; + unsigned allocated; + unsigned allocated_size; +} pa_memblock_stat; + +typedef struct pa_memblock { + pa_memblock_type_t type; + unsigned ref; /* the reference counter */ + int read_only; /* boolean */ + size_t length; + void *data; + void (*free_cb)(void *p); /* If type == PA_MEMBLOCK_USER this points to a function for freeing this memory block */ + pa_memblock_stat *stat; +} pa_memblock; + +/* Allocate a new memory block of type PA_MEMBLOCK_APPENDED */ +pa_memblock *pa_memblock_new(size_t length, pa_memblock_stat*s); + +/* Allocate a new memory block of type PA_MEMBLOCK_DYNAMIC. The pointer data is to be maintained be the memory block */ +pa_memblock *pa_memblock_new_dynamic(void *data, size_t length, pa_memblock_stat*s); + +/* Allocate a new memory block of type PA_MEMBLOCK_FIXED */ +pa_memblock *pa_memblock_new_fixed(void *data, size_t length, int read_only, pa_memblock_stat*s); + +/* Allocate a new memory block of type PA_MEMBLOCK_USER */ +pa_memblock *pa_memblock_new_user(void *data, size_t length, void (*free_cb)(void *p), int read_only, pa_memblock_stat*s); + +void pa_memblock_unref(pa_memblock*b); +pa_memblock* pa_memblock_ref(pa_memblock*b); + +/* This special unref function has to be called by the owner of the +memory of a static memory block when he wants to release all +references to the memory. This causes the memory to be copied and +converted into a PA_MEMBLOCK_DYNAMIC type memory block */ +void pa_memblock_unref_fixed(pa_memblock*b); + +pa_memblock_stat* pa_memblock_stat_new(void); +void pa_memblock_stat_unref(pa_memblock_stat *s); +pa_memblock_stat * pa_memblock_stat_ref(pa_memblock_stat *s); + +#endif diff --git a/src/pulsecore/memblockq.c b/src/pulsecore/memblockq.c new file mode 100644 index 00000000..ff199f1b --- /dev/null +++ b/src/pulsecore/memblockq.c @@ -0,0 +1,636 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <sys/time.h> +#include <time.h> +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/log.h> +#include <pulsecore/mcalign.h> + +#include "memblockq.h" + +struct memblock_list { + struct memblock_list *next, *prev; + int64_t index; + pa_memchunk chunk; +}; + +struct pa_memblockq { + struct memblock_list *blocks, *blocks_tail; + unsigned n_blocks; + size_t maxlength, tlength, base, prebuf, minreq; + int64_t read_index, write_index; + enum { PREBUF, RUNNING } state; + pa_memblock_stat *memblock_stat; + pa_memblock *silence; + pa_mcalign *mcalign; +}; + +pa_memblockq* pa_memblockq_new( + int64_t idx, + size_t maxlength, + size_t tlength, + size_t base, + size_t prebuf, + size_t minreq, + pa_memblock *silence, + pa_memblock_stat *s) { + + pa_memblockq* bq; + + assert(base > 0); + assert(maxlength >= base); + + bq = pa_xnew(pa_memblockq, 1); + bq->blocks = bq->blocks_tail = NULL; + bq->n_blocks = 0; + + bq->base = base; + bq->read_index = bq->write_index = idx; + bq->memblock_stat = s; + + pa_log_debug(__FILE__": memblockq requested: maxlength=%lu, tlength=%lu, base=%lu, prebuf=%lu, minreq=%lu", + (unsigned long)maxlength, (unsigned long)tlength, (unsigned long)base, (unsigned long)prebuf, (unsigned long)minreq); + + bq->maxlength = ((maxlength+base-1)/base)*base; + assert(bq->maxlength >= base); + + bq->tlength = ((tlength+base-1)/base)*base; + if (!bq->tlength || bq->tlength >= bq->maxlength) + bq->tlength = bq->maxlength; + + bq->prebuf = (prebuf == (size_t) -1) ? bq->tlength/2 : prebuf; + bq->prebuf = ((bq->prebuf+base-1)/base)*base; + if (bq->prebuf > bq->maxlength) + bq->prebuf = bq->maxlength; + + bq->minreq = (minreq/base)*base; + + if (bq->minreq > bq->tlength - bq->prebuf) + bq->minreq = bq->tlength - bq->prebuf; + + if (!bq->minreq) + bq->minreq = 1; + + pa_log_debug(__FILE__": memblockq sanitized: maxlength=%lu, tlength=%lu, base=%lu, prebuf=%lu, minreq=%lu", + (unsigned long)bq->maxlength, (unsigned long)bq->tlength, (unsigned long)bq->base, (unsigned long)bq->prebuf, (unsigned long)bq->minreq); + + bq->state = bq->prebuf ? PREBUF : RUNNING; + bq->silence = silence ? pa_memblock_ref(silence) : NULL; + bq->mcalign = NULL; + + return bq; +} + +void pa_memblockq_free(pa_memblockq* bq) { + assert(bq); + + pa_memblockq_flush(bq); + + if (bq->silence) + pa_memblock_unref(bq->silence); + + if (bq->mcalign) + pa_mcalign_free(bq->mcalign); + + pa_xfree(bq); +} + +static void drop_block(pa_memblockq *bq, struct memblock_list *q) { + assert(bq); + assert(q); + + assert(bq->n_blocks >= 1); + + if (q->prev) + q->prev->next = q->next; + else + bq->blocks = q->next; + + if (q->next) + q->next->prev = q->prev; + else + bq->blocks_tail = q->prev; + + pa_memblock_unref(q->chunk.memblock); + pa_xfree(q); + + bq->n_blocks--; +} + +static int can_push(pa_memblockq *bq, size_t l) { + int64_t end; + + assert(bq); + + if (bq->read_index > bq->write_index) { + size_t d = bq->read_index - bq->write_index; + + if (l > d) + l -= d; + else + return 1; + } + + end = bq->blocks_tail ? bq->blocks_tail->index + bq->blocks_tail->chunk.length : 0; + + /* Make sure that the list doesn't get too long */ + if (bq->write_index + (int64_t)l > end) + if (bq->write_index + l - bq->read_index > bq->maxlength) + return 0; + + return 1; +} + +int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *uchunk) { + + struct memblock_list *q, *n; + pa_memchunk chunk; + + assert(bq); + assert(uchunk); + assert(uchunk->memblock); + assert(uchunk->length > 0); + assert(uchunk->index + uchunk->length <= uchunk->memblock->length); + + if (uchunk->length % bq->base) + return -1; + + if (!can_push(bq, uchunk->length)) + return -1; + + chunk = *uchunk; + + if (bq->read_index > bq->write_index) { + + /* We currently have a buffer underflow, we need to drop some + * incoming data */ + + size_t d = bq->read_index - bq->write_index; + + if (chunk.length > d) { + chunk.index += d; + chunk.length -= d; + bq->write_index = bq->read_index; + } else { + /* We drop the incoming data completely */ + bq->write_index += chunk.length; + return 0; + } + } + + /* We go from back to front to look for the right place to add + * this new entry. Drop data we will overwrite on the way */ + + q = bq->blocks_tail; + while (q) { + + if (bq->write_index >= q->index + (int64_t)q->chunk.length) + /* We found the entry where we need to place the new entry immediately after */ + break; + else if (bq->write_index + (int64_t)chunk.length <= q->index) { + /* This entry isn't touched at all, let's skip it */ + q = q->prev; + } else if (bq->write_index <= q->index && + bq->write_index + chunk.length >= q->index + q->chunk.length) { + + /* This entry is fully replaced by the new entry, so let's drop it */ + + struct memblock_list *p; + p = q; + q = q->prev; + drop_block(bq, p); + } else if (bq->write_index >= q->index) { + /* The write index points into this memblock, so let's + * truncate or split it */ + + if (bq->write_index + chunk.length < q->index + q->chunk.length) { + + /* We need to save the end of this memchunk */ + struct memblock_list *p; + size_t d; + + /* Create a new list entry for the end of thie memchunk */ + p = pa_xnew(struct memblock_list, 1); + p->chunk = q->chunk; + pa_memblock_ref(p->chunk.memblock); + + /* Calculate offset */ + d = bq->write_index + chunk.length - q->index; + assert(d > 0); + + /* Drop it from the new entry */ + p->index = q->index + d; + p->chunk.length -= d; + + /* Add it to the list */ + p->prev = q; + if ((p->next = q->next)) + q->next->prev = p; + else + bq->blocks_tail = p; + q->next = p; + + bq->n_blocks++; + } + + /* Truncate the chunk */ + if (!(q->chunk.length = bq->write_index - q->index)) { + struct memblock_list *p; + p = q; + q = q->prev; + drop_block(bq, p); + } + + /* We had to truncate this block, hence we're now at the right position */ + break; + } else { + size_t d; + + assert(bq->write_index + (int64_t)chunk.length > q->index && + bq->write_index + (int64_t)chunk.length < q->index + (int64_t)q->chunk.length && + bq->write_index < q->index); + + /* The job overwrites the current entry at the end, so let's drop the beginning of this entry */ + + d = bq->write_index + chunk.length - q->index; + q->index += d; + q->chunk.index += d; + q->chunk.length -= d; + + q = q->prev; + } + + } + + if (q) { + assert(bq->write_index >= q->index + (int64_t)q->chunk.length); + assert(!q->next || (bq->write_index + (int64_t)chunk.length <= q->next->index)); + + /* Try to merge memory blocks */ + + if (q->chunk.memblock == chunk.memblock && + q->chunk.index + (int64_t)q->chunk.length == chunk.index && + bq->write_index == q->index + (int64_t)q->chunk.length) { + + q->chunk.length += chunk.length; + bq->write_index += chunk.length; + return 0; + } + } else + assert(!bq->blocks || (bq->write_index + (int64_t)chunk.length <= bq->blocks->index)); + + + n = pa_xnew(struct memblock_list, 1); + n->chunk = chunk; + pa_memblock_ref(n->chunk.memblock); + n->index = bq->write_index; + bq->write_index += n->chunk.length; + + n->next = q ? q->next : bq->blocks; + n->prev = q; + + if (n->next) + n->next->prev = n; + else + bq->blocks_tail = n; + + if (n->prev) + n->prev->next = n; + else + bq->blocks = n; + + bq->n_blocks++; + return 0; +} + +int pa_memblockq_peek(pa_memblockq* bq, pa_memchunk *chunk) { + assert(bq); + assert(chunk); + + if (bq->state == PREBUF) { + + /* We need to pre-buffer */ + if (pa_memblockq_get_length(bq) < bq->prebuf) + return -1; + + bq->state = RUNNING; + + } else if (bq->prebuf > 0 && bq->read_index >= bq->write_index) { + + /* Buffer underflow protection */ + bq->state = PREBUF; + return -1; + } + + /* Do we need to spit out silence? */ + if (!bq->blocks || bq->blocks->index > bq->read_index) { + + size_t length; + + /* How much silence shall we return? */ + length = bq->blocks ? bq->blocks->index - bq->read_index : 0; + + /* We need to return silence, since no data is yet available */ + if (bq->silence) { + chunk->memblock = pa_memblock_ref(bq->silence); + + if (!length || length > chunk->memblock->length) + length = chunk->memblock->length; + + chunk->length = length; + } else { + chunk->memblock = NULL; + chunk->length = length; + } + + chunk->index = 0; + return 0; + } + + /* Ok, let's pass real data to the caller */ + assert(bq->blocks->index == bq->read_index); + + *chunk = bq->blocks->chunk; + pa_memblock_ref(chunk->memblock); + + return 0; +} + +void pa_memblockq_drop(pa_memblockq *bq, const pa_memchunk *chunk, size_t length) { + assert(bq); + assert(length % bq->base == 0); + + assert(!chunk || length <= chunk->length); + + if (chunk) { + + if (bq->blocks && bq->blocks->index == bq->read_index) { + /* The first item in queue is valid */ + + /* Does the chunk match with what the user supplied us? */ + if (memcmp(chunk, &bq->blocks->chunk, sizeof(pa_memchunk)) != 0) + return; + + } else { + size_t l; + + /* The first item in the queue is not yet relevant */ + + assert(!bq->blocks || bq->blocks->index > bq->read_index); + l = bq->blocks ? bq->blocks->index - bq->read_index : 0; + + if (bq->silence) { + + if (!l || l > bq->silence->length) + l = bq->silence->length; + + } + + /* Do the entries still match? */ + if (chunk->index != 0 || chunk->length != l || chunk->memblock != bq->silence) + return; + } + } + + while (length > 0) { + + if (bq->blocks) { + size_t d; + + assert(bq->blocks->index >= bq->read_index); + + d = (size_t) (bq->blocks->index - bq->read_index); + + if (d >= length) { + /* The first block is too far in the future */ + + bq->read_index += length; + break; + } else { + + length -= d; + bq->read_index += d; + } + + assert(bq->blocks->index == bq->read_index); + + if (bq->blocks->chunk.length <= length) { + /* We need to drop the full block */ + + length -= bq->blocks->chunk.length; + bq->read_index += bq->blocks->chunk.length; + + drop_block(bq, bq->blocks); + } else { + /* Only the start of this block needs to be dropped */ + + bq->blocks->chunk.index += length; + bq->blocks->chunk.length -= length; + bq->blocks->index += length; + bq->read_index += length; + break; + } + + } else { + + /* The list is empty, there's nothing we could drop */ + bq->read_index += length; + break; + } + } +} + +int pa_memblockq_is_readable(pa_memblockq *bq) { + assert(bq); + + if (bq->prebuf > 0) { + size_t l = pa_memblockq_get_length(bq); + + if (bq->state == PREBUF && l < bq->prebuf) + return 0; + + if (l <= 0) + return 0; + } + + return 1; +} + +int pa_memblockq_is_writable(pa_memblockq *bq, size_t length) { + assert(bq); + + if (length % bq->base) + return 0; + + return pa_memblockq_get_length(bq) + length <= bq->tlength; +} + +size_t pa_memblockq_get_length(pa_memblockq *bq) { + assert(bq); + + if (bq->write_index <= bq->read_index) + return 0; + + return (size_t) (bq->write_index - bq->read_index); +} + +size_t pa_memblockq_missing(pa_memblockq *bq) { + size_t l; + assert(bq); + + if ((l = pa_memblockq_get_length(bq)) >= bq->tlength) + return 0; + + l = bq->tlength - l; + return (l >= bq->minreq) ? l : 0; +} + +size_t pa_memblockq_get_minreq(pa_memblockq *bq) { + assert(bq); + + return bq->minreq; +} + +void pa_memblockq_seek(pa_memblockq *bq, int64_t offset, pa_seek_mode_t seek) { + assert(bq); + + switch (seek) { + case PA_SEEK_RELATIVE: + bq->write_index += offset; + return; + case PA_SEEK_ABSOLUTE: + bq->write_index = offset; + return; + case PA_SEEK_RELATIVE_ON_READ: + bq->write_index = bq->read_index + offset; + return; + case PA_SEEK_RELATIVE_END: + bq->write_index = (bq->blocks_tail ? bq->blocks_tail->index + (int64_t)bq->blocks_tail->chunk.length : bq->read_index) + offset; + return; + } + + assert(0); +} + +void pa_memblockq_flush(pa_memblockq *bq) { + assert(bq); + + while (bq->blocks) + drop_block(bq, bq->blocks); + + assert(bq->n_blocks == 0); + + bq->write_index = bq->read_index; + + pa_memblockq_prebuf_force(bq); +} + +size_t pa_memblockq_get_tlength(pa_memblockq *bq) { + assert(bq); + + return bq->tlength; +} + +int64_t pa_memblockq_get_read_index(pa_memblockq *bq) { + assert(bq); + return bq->read_index; +} + +int64_t pa_memblockq_get_write_index(pa_memblockq *bq) { + assert(bq); + return bq->write_index; +} + +int pa_memblockq_push_align(pa_memblockq* bq, const pa_memchunk *chunk) { + pa_memchunk rchunk; + + assert(bq); + assert(chunk && bq->base); + + if (bq->base == 1) + return pa_memblockq_push(bq, chunk); + + if (!bq->mcalign) + bq->mcalign = pa_mcalign_new(bq->base, bq->memblock_stat); + + if (!can_push(bq, pa_mcalign_csize(bq->mcalign, chunk->length))) + return -1; + + pa_mcalign_push(bq->mcalign, chunk); + + while (pa_mcalign_pop(bq->mcalign, &rchunk) >= 0) { + int r; + r = pa_memblockq_push(bq, &rchunk); + pa_memblock_unref(rchunk.memblock); + + if (r < 0) + return -1; + } + + return 0; +} + +void pa_memblockq_shorten(pa_memblockq *bq, size_t length) { + size_t l; + assert(bq); + + l = pa_memblockq_get_length(bq); + + if (l > length) + pa_memblockq_drop(bq, NULL, l - length); +} + +void pa_memblockq_prebuf_disable(pa_memblockq *bq) { + assert(bq); + + if (bq->state == PREBUF) + bq->state = RUNNING; +} + +void pa_memblockq_prebuf_force(pa_memblockq *bq) { + assert(bq); + + if (bq->state == RUNNING && bq->prebuf > 0) + bq->state = PREBUF; +} + +size_t pa_memblockq_get_maxlength(pa_memblockq *bq) { + assert(bq); + + return bq->maxlength; +} + +size_t pa_memblockq_get_prebuf(pa_memblockq *bq) { + assert(bq); + + return bq->prebuf; +} diff --git a/src/pulsecore/memblockq.h b/src/pulsecore/memblockq.h new file mode 100644 index 00000000..c35b62dd --- /dev/null +++ b/src/pulsecore/memblockq.h @@ -0,0 +1,140 @@ +#ifndef foomemblockqhfoo +#define foomemblockqhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> +#include <inttypes.h> + +#include <pulsecore/memblock.h> +#include <pulsecore/memchunk.h> +#include <pulse/def.h> + +/* A memblockq is a queue of pa_memchunks (yepp, the name is not + * perfect). It is similar to the ring buffers used by most other + * audio software. In contrast to a ring buffer this memblockq data + * type doesn't need to copy any data around, it just maintains + * references to reference counted memory blocks. */ + +typedef struct pa_memblockq pa_memblockq; + + +/* Parameters: + + - idx: start value for both read and write index + + - maxlength: maximum length of queue. If more data is pushed into + the queue, the operation will fail. Must not be 0. + + - tlength: the target length of the queue. Pass 0 for the default. + + - base: a base value for all metrics. Only multiples of this value + are popped from the queue or should be pushed into + it. Must not be 0. + + - prebuf: If the queue runs empty wait until this many bytes are in + queue again before passing the first byte out. If set + to 0 pa_memblockq_pop() will return a silence memblock + if no data is in the queue and will never fail. Pass + (size_t) -1 for the default. + + - minreq: pa_memblockq_missing() will only return values greater + than this value. Pass 0 for the default. + + - silence: return this memblock whzen reading unitialized data +*/ +pa_memblockq* pa_memblockq_new( + int64_t idx, + size_t maxlength, + size_t tlength, + size_t base, + size_t prebuf, + size_t minreq, + pa_memblock *silence, + pa_memblock_stat *s); + +void pa_memblockq_free(pa_memblockq*bq); + +/* Push a new memory chunk into the queue. */ +int pa_memblockq_push(pa_memblockq* bq, const pa_memchunk *chunk); + +/* Push a new memory chunk into the queue, but filter it through a + * pa_mcalign object. Don't mix this with pa_memblockq_seek() unless + * you know what you do. */ +int pa_memblockq_push_align(pa_memblockq* bq, const pa_memchunk *chunk); + +/* Return a copy of the next memory chunk in the queue. It is not removed from the queue */ +int pa_memblockq_peek(pa_memblockq* bq, pa_memchunk *chunk); + +/* Drop the specified bytes from the queue, but only if the first + * chunk in the queue matches the one passed here. If NULL is passed, + * this check isn't done. */ +void pa_memblockq_drop(pa_memblockq *bq, const pa_memchunk *chunk, size_t length); + +/* Test if the pa_memblockq is currently readable, that is, more data than base */ +int pa_memblockq_is_readable(pa_memblockq *bq); + +/* Test if the pa_memblockq is currently writable for the specified amount of bytes */ +int pa_memblockq_is_writable(pa_memblockq *bq, size_t length); + +/* Return the length of the queue in bytes */ +size_t pa_memblockq_get_length(pa_memblockq *bq); + +/* Return how many bytes are missing in queue to the specified fill amount */ +size_t pa_memblockq_missing(pa_memblockq *bq); + +/* Returns the minimal request value */ +size_t pa_memblockq_get_minreq(pa_memblockq *bq); + +/* Manipulate the write pointer */ +void pa_memblockq_seek(pa_memblockq *bq, int64_t offset, pa_seek_mode_t seek); + +/* Set the queue to silence, set write index to read index */ +void pa_memblockq_flush(pa_memblockq *bq); + +/* Get Target length */ +size_t pa_memblockq_get_tlength(pa_memblockq *bq); + +/* Return the current read index */ +int64_t pa_memblockq_get_read_index(pa_memblockq *bq); + +/* Return the current write index */ +int64_t pa_memblockq_get_write_index(pa_memblockq *bq); + +/* Shorten the pa_memblockq to the specified length by dropping data + * at the read end of the queue. The read index is increased until the + * queue has the specified length */ +void pa_memblockq_shorten(pa_memblockq *bq, size_t length); + +/* Ignore prebuf for now */ +void pa_memblockq_prebuf_disable(pa_memblockq *bq); + +/* Force prebuf */ +void pa_memblockq_prebuf_force(pa_memblockq *bq); + +/* Return the maximum length of the queue in bytes */ +size_t pa_memblockq_get_maxlength(pa_memblockq *bq); + +/* Return the prebuffer length in bytes */ +size_t pa_memblockq_get_prebuf(pa_memblockq *bq); + +#endif diff --git a/src/pulsecore/memchunk.c b/src/pulsecore/memchunk.c new file mode 100644 index 00000000..abfc2cab --- /dev/null +++ b/src/pulsecore/memchunk.c @@ -0,0 +1,59 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include "memchunk.h" + +void pa_memchunk_make_writable(pa_memchunk *c, pa_memblock_stat *s, size_t min) { + pa_memblock *n; + size_t l; + assert(c && c->memblock && c->memblock->ref >= 1); + + if (c->memblock->ref == 1 && !c->memblock->read_only && c->memblock->length >= c->index+min) + return; + + l = c->length; + if (l < min) + l = min; + + n = pa_memblock_new(l, s); + memcpy(n->data, (uint8_t*) c->memblock->data + c->index, c->length); + pa_memblock_unref(c->memblock); + c->memblock = n; + c->index = 0; +} + +void pa_memchunk_reset(pa_memchunk *c) { + assert(c); + + c->memblock = NULL; + c->length = c->index = 0; +} diff --git a/src/pulsecore/memchunk.h b/src/pulsecore/memchunk.h new file mode 100644 index 00000000..1b26c2e6 --- /dev/null +++ b/src/pulsecore/memchunk.h @@ -0,0 +1,45 @@ +#ifndef foomemchunkhfoo +#define foomemchunkhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/memblock.h> + +/* A memchunk describes a part of a memblock. In contrast to the memblock, a + * memchunk is not allocated dynamically or reference counted, instead + * it is usually stored on the stack and copied around */ + +typedef struct pa_memchunk { + pa_memblock *memblock; + size_t index, length; +} pa_memchunk; + +/* Make a memchunk writable, i.e. make sure that the caller may have + * exclusive access to the memblock and it is not read_only. If needed + * the memblock in the structure is replaced by a copy. */ +void pa_memchunk_make_writable(pa_memchunk *c, pa_memblock_stat *s, size_t min); + +/* Invalidate a memchunk. This does not free the cotaining memblock, + * but sets all members to zero. */ +void pa_memchunk_reset(pa_memchunk *c); + +#endif diff --git a/src/pulsecore/modargs.c b/src/pulsecore/modargs.c new file mode 100644 index 00000000..13a48785 --- /dev/null +++ b/src/pulsecore/modargs.c @@ -0,0 +1,310 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <ctype.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/hashmap.h> +#include <pulsecore/idxset.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/namereg.h> +#include <pulsecore/sink.h> +#include <pulsecore/source.h> +#include <pulsecore/core-util.h> + +#include "modargs.h" + +struct entry { + char *key, *value; +}; + +static int add_key_value(pa_hashmap *map, char *key, char *value, const char* const valid_keys[]) { + struct entry *e; + assert(map && key && value); + + if (valid_keys) { + const char*const* v; + for (v = valid_keys; *v; v++) + if (strcmp(*v, key) == 0) + break; + + if (!*v) { + pa_xfree(key); + pa_xfree(value); + return -1; + } + } + + e = pa_xmalloc(sizeof(struct entry)); + e->key = key; + e->value = value; + pa_hashmap_put(map, key, e); + return 0; +} + +pa_modargs *pa_modargs_new(const char *args, const char* const* valid_keys) { + pa_hashmap *map = NULL; + + map = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); + assert(map); + + if (args) { + enum { WHITESPACE, KEY, VALUE_START, VALUE_SIMPLE, VALUE_DOUBLE_QUOTES, VALUE_TICKS } state; + const char *p, *key, *value; + size_t key_len = 0, value_len = 0; + + key = value = NULL; + state = WHITESPACE; + for (p = args; *p; p++) { + switch (state) { + case WHITESPACE: + if (*p == '=') + goto fail; + else if (!isspace(*p)) { + key = p; + state = KEY; + key_len = 1; + } + break; + case KEY: + if (*p == '=') + state = VALUE_START; + else + key_len++; + break; + case VALUE_START: + if (*p == '\'') { + state = VALUE_TICKS; + value = p+1; + value_len = 0; + } else if (*p == '"') { + state = VALUE_DOUBLE_QUOTES; + value = p+1; + value_len = 0; + } else if (isspace(*p)) { + if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(""), valid_keys) < 0) + goto fail; + state = WHITESPACE; + } else { + state = VALUE_SIMPLE; + value = p; + value_len = 1; + } + break; + case VALUE_SIMPLE: + if (isspace(*p)) { + if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0) + goto fail; + state = WHITESPACE; + } else + value_len++; + break; + case VALUE_DOUBLE_QUOTES: + if (*p == '"') { + if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0) + goto fail; + state = WHITESPACE; + } else + value_len++; + break; + case VALUE_TICKS: + if (*p == '\'') { + if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrndup(value, value_len), valid_keys) < 0) + goto fail; + state = WHITESPACE; + } else + value_len++; + break; + } + } + + if (state == VALUE_START) { + if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(""), valid_keys) < 0) + goto fail; + } else if (state == VALUE_SIMPLE) { + if (add_key_value(map, pa_xstrndup(key, key_len), pa_xstrdup(value), valid_keys) < 0) + goto fail; + } else if (state != WHITESPACE) + goto fail; + } + + return (pa_modargs*) map; + +fail: + + if (map) + pa_modargs_free((pa_modargs*) map); + + return NULL; +} + + +static void free_func(void *p, PA_GCC_UNUSED void*userdata) { + struct entry *e = p; + assert(e); + pa_xfree(e->key); + pa_xfree(e->value); + pa_xfree(e); +} + +void pa_modargs_free(pa_modargs*ma) { + pa_hashmap *map = (pa_hashmap*) ma; + pa_hashmap_free(map, free_func, NULL); +} + +const char *pa_modargs_get_value(pa_modargs *ma, const char *key, const char *def) { + pa_hashmap *map = (pa_hashmap*) ma; + struct entry*e; + + if (!(e = pa_hashmap_get(map, key))) + return def; + + return e->value; +} + +int pa_modargs_get_value_u32(pa_modargs *ma, const char *key, uint32_t *value) { + const char *v; + assert(ma && key && value); + + if (!(v = pa_modargs_get_value(ma, key, NULL))) + return 0; + + if (pa_atou(v, value) < 0) + return -1; + + return 0; +} + +int pa_modargs_get_value_s32(pa_modargs *ma, const char *key, int32_t *value) { + const char *v; + assert(ma && key && value); + + if (!(v = pa_modargs_get_value(ma, key, NULL))) + return 0; + + if (pa_atoi(v, value) < 0) + return -1; + + return 0; +} + +int pa_modargs_get_value_boolean(pa_modargs *ma, const char *key, int *value) { + const char *v; + int r; + assert(ma && key && value); + + if (!(v = pa_modargs_get_value(ma, key, NULL))) + return 0; + + if (!*v) + return -1; + + if ((r = pa_parse_boolean(v)) < 0) + return -1; + + *value = r; + return 0; +} + +int pa_modargs_get_sample_spec(pa_modargs *ma, pa_sample_spec *rss) { + const char *format; + uint32_t channels; + pa_sample_spec ss; + assert(ma && rss); + +/* DEBUG_TRAP;*/ + + ss = *rss; + if ((pa_modargs_get_value_u32(ma, "rate", &ss.rate)) < 0) + return -1; + + channels = ss.channels; + if ((pa_modargs_get_value_u32(ma, "channels", &channels)) < 0) + return -1; + ss.channels = (uint8_t) channels; + + if ((format = pa_modargs_get_value(ma, "format", NULL))) + if ((ss.format = pa_parse_sample_format(format)) < 0) + return -1; + + if (!pa_sample_spec_valid(&ss)) + return -1; + + *rss = ss; + + return 0; +} + +int pa_modargs_get_channel_map(pa_modargs *ma, pa_channel_map *rmap) { + pa_channel_map map; + const char *cm; + + assert(ma); + assert(rmap); + + map = *rmap; + + if ((cm = pa_modargs_get_value(ma, "channel_map", NULL))) + if (!pa_channel_map_parse(&map, cm)) + return -1; + + if (!pa_channel_map_valid(&map)) + return -1; + + *rmap = map; + return 0; +} + +int pa_modargs_get_sample_spec_and_channel_map(pa_modargs *ma, pa_sample_spec *rss, pa_channel_map *rmap, pa_channel_map_def_t def) { + pa_sample_spec ss; + pa_channel_map map; + + assert(ma); + assert(rss); + assert(rmap); + + ss = *rss; + + if (pa_modargs_get_sample_spec(ma, &ss) < 0) + return -1; + + if (!pa_channel_map_init_auto(&map, ss.channels, def)) + map.channels = 0; + + if (pa_modargs_get_channel_map(ma, &map) < 0) + return -1; + + if (map.channels != ss.channels) + return -1; + + *rmap = map; + *rss = ss; + + return 0; +} diff --git a/src/pulsecore/modargs.h b/src/pulsecore/modargs.h new file mode 100644 index 00000000..730cf396 --- /dev/null +++ b/src/pulsecore/modargs.h @@ -0,0 +1,60 @@ +#ifndef foomodargshfoo +#define foomodargshfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> +#include <pulse/sample.h> +#include <pulse/channelmap.h> +#include <pulsecore/core.h> + +typedef struct pa_modargs pa_modargs; + +/* A generic parser for module arguments */ + +/* Parse the string args. The NULL-terminated array keys contains all valid arguments. */ +pa_modargs *pa_modargs_new(const char *args, const char* const keys[]); +void pa_modargs_free(pa_modargs*ma); + +/* Return the module argument for the specified name as a string. If + * the argument was not specified, return def instead.*/ +const char *pa_modargs_get_value(pa_modargs *ma, const char *key, const char *def); + +/* Return a module argument as unsigned 32bit value in *value */ +int pa_modargs_get_value_u32(pa_modargs *ma, const char *key, uint32_t *value); +int pa_modargs_get_value_s32(pa_modargs *ma, const char *key, int32_t *value); +int pa_modargs_get_value_boolean(pa_modargs *ma, const char *key, int *value); + +/* Return sample spec data from the three arguments "rate", "format" and "channels" */ +int pa_modargs_get_sample_spec(pa_modargs *ma, pa_sample_spec *ss); + +/* Return channel map data from the argument "channel_map" */ +int pa_modargs_get_channel_map(pa_modargs *ma, pa_channel_map *map); + +/* Combination of pa_modargs_get_sample_spec() and +pa_modargs_get_channel_map(). Not always suitable, since this routine +initializes the map parameter based on the channels field of the ss +structure if no channel_map is found, using pa_channel_map_init_auto() */ + +int pa_modargs_get_sample_spec_and_channel_map(pa_modargs *ma, pa_sample_spec *ss, pa_channel_map *map, pa_channel_map_def_t def); + +#endif diff --git a/src/pulsecore/modinfo.c b/src/pulsecore/modinfo.c new file mode 100644 index 00000000..adefdb46 --- /dev/null +++ b/src/pulsecore/modinfo.c @@ -0,0 +1,93 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <ltdl.h> +#include <assert.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> + +#include "modinfo.h" + +#define PA_SYMBOL_AUTHOR "pa__get_author" +#define PA_SYMBOL_DESCRIPTION "pa__get_description" +#define PA_SYMBOL_USAGE "pa__get_usage" +#define PA_SYMBOL_VERSION "pa__get_version" + +/* lt_dlsym() violates ISO C, so confide the breakage into this function to + * avoid warnings. */ +typedef void (*fnptr)(void); +static inline fnptr lt_dlsym_fn(lt_dlhandle handle, const char *symbol) { + return (fnptr) (long) lt_dlsym(handle, symbol); +} + +pa_modinfo *pa_modinfo_get_by_handle(lt_dlhandle dl) { + pa_modinfo *i; + const char* (*func)(void); + assert(dl); + + i = pa_xnew0(pa_modinfo, 1); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_AUTHOR))) + i->author = pa_xstrdup(func()); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_DESCRIPTION))) + i->description = pa_xstrdup(func()); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_USAGE))) + i->usage = pa_xstrdup(func()); + + if ((func = (const char* (*)(void)) lt_dlsym_fn(dl, PA_SYMBOL_VERSION))) + i->version = pa_xstrdup(func()); + + return i; +} + +pa_modinfo *pa_modinfo_get_by_name(const char *name) { + lt_dlhandle dl; + pa_modinfo *i; + assert(name); + + if (!(dl = lt_dlopenext(name))) { + pa_log(__FILE__": Failed to open module \"%s\": %s", name, lt_dlerror()); + return NULL; + } + + i = pa_modinfo_get_by_handle(dl); + lt_dlclose(dl); + + return i; +} + +void pa_modinfo_free(pa_modinfo *i) { + assert(i); + pa_xfree(i->author); + pa_xfree(i->description); + pa_xfree(i->usage); + pa_xfree(i->version); + pa_xfree(i); +} diff --git a/src/pulsecore/modinfo.h b/src/pulsecore/modinfo.h new file mode 100644 index 00000000..f39cee3b --- /dev/null +++ b/src/pulsecore/modinfo.h @@ -0,0 +1,43 @@ +#ifndef foomodinfohfoo +#define foomodinfohfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +/* Some functions for reading module meta data from Polypaudio modules */ + +typedef struct pa_modinfo { + char *author; + char *description; + char *usage; + char *version; +} pa_modinfo; + +/* Read meta data from an libtool handle */ +pa_modinfo *pa_modinfo_get_by_handle(lt_dlhandle dl); + +/* Read meta data from a module file */ +pa_modinfo *pa_modinfo_get_by_name(const char *name); + +/* Free meta data */ +void pa_modinfo_free(pa_modinfo *i); + +#endif diff --git a/src/pulsecore/module.c b/src/pulsecore/module.c new file mode 100644 index 00000000..e7dca78d --- /dev/null +++ b/src/pulsecore/module.c @@ -0,0 +1,319 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <limits.h> +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <errno.h> +#include <ctype.h> + +#include <pulse/timeval.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> +#include <pulsecore/core-util.h> + +#include "module.h" + +#define PA_SYMBOL_INIT "pa__init" +#define PA_SYMBOL_DONE "pa__done" + +#define UNLOAD_POLL_TIME 2 + +/* lt_dlsym() violates ISO C, so confide the breakage into this function to + * avoid warnings. */ +typedef void (*fnptr)(void); +static inline fnptr lt_dlsym_fn(lt_dlhandle handle, const char *symbol) { + return (fnptr) (long) lt_dlsym(handle, symbol); +} + +static void timeout_callback(pa_mainloop_api *m, pa_time_event*e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) { + pa_core *c = userdata; + struct timeval ntv; + assert(c && c->mainloop == m && c->module_auto_unload_event == e); + + pa_module_unload_unused(c); + + pa_gettimeofday(&ntv); + ntv.tv_sec += UNLOAD_POLL_TIME; + m->time_restart(e, &ntv); +} + +static inline fnptr load_sym(lt_dlhandle handle, const char *module, const char *symbol) { + char *buffer, *ch; + size_t buflen; + fnptr res; + + res = lt_dlsym_fn(handle, symbol); + if (res) + return res; + + /* As the .la files might have been cleansed from the system, we should + * try with the ltdl prefix as well. */ + + buflen = strlen(symbol) + strlen(module) + strlen("_LTX_") + 1; + buffer = pa_xmalloc(buflen); + assert(buffer); + + strcpy(buffer, module); + + for (ch = buffer;*ch != '\0';ch++) { + if (!isalnum(*ch)) + *ch = '_'; + } + + strcat(buffer, "_LTX_"); + strcat(buffer, symbol); + + res = lt_dlsym_fn(handle, buffer); + + pa_xfree(buffer); + + return res; +} + +pa_module* pa_module_load(pa_core *c, const char *name, const char *argument) { + pa_module *m = NULL; + int r; + + assert(c && name); + + if (c->disallow_module_loading) + goto fail; + + m = pa_xmalloc(sizeof(pa_module)); + + m->name = pa_xstrdup(name); + m->argument = pa_xstrdup(argument); + + if (!(m->dl = lt_dlopenext(name))) { + pa_log(__FILE__": Failed to open module \"%s\": %s", name, lt_dlerror()); + goto fail; + } + + if (!(m->init = (int (*)(pa_core *_c, pa_module*_m)) load_sym(m->dl, name, PA_SYMBOL_INIT))) { + pa_log(__FILE__": Failed to load module \"%s\": symbol \""PA_SYMBOL_INIT"\" not found.", name); + goto fail; + } + + if (!(m->done = (void (*)(pa_core *_c, pa_module*_m)) load_sym(m->dl, name, PA_SYMBOL_DONE))) { + pa_log(__FILE__": Failed to load module \"%s\": symbol \""PA_SYMBOL_DONE"\" not found.", name); + goto fail; + } + + m->userdata = NULL; + m->core = c; + m->n_used = -1; + m->auto_unload = 0; + m->unload_requested = 0; + + assert(m->init); + if (m->init(c, m) < 0) { + pa_log_error(__FILE__": Failed to load module \"%s\" (argument: \"%s\"): initialization failed.", name, argument ? argument : ""); + goto fail; + } + + if (!c->modules) + c->modules = pa_idxset_new(NULL, NULL); + + if (!c->module_auto_unload_event) { + struct timeval ntv; + pa_gettimeofday(&ntv); + ntv.tv_sec += UNLOAD_POLL_TIME; + c->module_auto_unload_event = c->mainloop->time_new(c->mainloop, &ntv, timeout_callback, c); + } + assert(c->module_auto_unload_event); + + assert(c->modules); + r = pa_idxset_put(c->modules, m, &m->index); + assert(r >= 0 && m->index != PA_IDXSET_INVALID); + + pa_log_info(__FILE__": Loaded \"%s\" (index: #%u; argument: \"%s\").", m->name, m->index, m->argument ? m->argument : ""); + + pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_MODULE|PA_SUBSCRIPTION_EVENT_NEW, m->index); + + return m; + +fail: + + if (m) { + pa_xfree(m->argument); + pa_xfree(m->name); + + if (m->dl) + lt_dlclose(m->dl); + + pa_xfree(m); + } + + return NULL; +} + +static void pa_module_free(pa_module *m) { + assert(m && m->done && m->core); + + if (m->core->disallow_module_loading) + return; + + pa_log_info(__FILE__": Unloading \"%s\" (index: #%u).", m->name, m->index); + + m->done(m->core, m); + + lt_dlclose(m->dl); + + pa_log_info(__FILE__": Unloaded \"%s\" (index: #%u).", m->name, m->index); + + pa_subscription_post(m->core, PA_SUBSCRIPTION_EVENT_MODULE|PA_SUBSCRIPTION_EVENT_REMOVE, m->index); + + pa_xfree(m->name); + pa_xfree(m->argument); + pa_xfree(m); +} + +void pa_module_unload(pa_core *c, pa_module *m) { + assert(c && m); + + assert(c->modules); + if (!(m = pa_idxset_remove_by_data(c->modules, m, NULL))) + return; + + pa_module_free(m); +} + +void pa_module_unload_by_index(pa_core *c, uint32_t idx) { + pa_module *m; + assert(c && idx != PA_IDXSET_INVALID); + + assert(c->modules); + if (!(m = pa_idxset_remove_by_index(c->modules, idx))) + return; + + pa_module_free(m); +} + +static void free_callback(void *p, PA_GCC_UNUSED void *userdata) { + pa_module *m = p; + assert(m); + pa_module_free(m); +} + +void pa_module_unload_all(pa_core *c) { + assert(c); + + if (!c->modules) + return; + + pa_idxset_free(c->modules, free_callback, NULL); + c->modules = NULL; + + if (c->module_auto_unload_event) { + c->mainloop->time_free(c->module_auto_unload_event); + c->module_auto_unload_event = NULL; + } + + if (c->module_defer_unload_event) { + c->mainloop->defer_free(c->module_defer_unload_event); + c->module_defer_unload_event = NULL; + } +} + +static int unused_callback(void *p, PA_GCC_UNUSED uint32_t idx, int *del, void *userdata) { + pa_module *m = p; + time_t *now = userdata; + assert(p && del && now); + + if (m->n_used == 0 && m->auto_unload && m->last_used_time+m->core->module_idle_time <= *now) { + pa_module_free(m); + *del = 1; + } + + return 0; +} + +void pa_module_unload_unused(pa_core *c) { + time_t now; + assert(c); + + if (!c->modules) + return; + + time(&now); + pa_idxset_foreach(c->modules, unused_callback, &now); +} + +static int unload_callback(void *p, PA_GCC_UNUSED uint32_t idx, int *del, PA_GCC_UNUSED void *userdata) { + pa_module *m = p; + assert(m); + + if (m->unload_requested) { + pa_module_free(m); + *del = 1; + } + + return 0; +} + +static void defer_cb(pa_mainloop_api*api, pa_defer_event *e, void *userdata) { + pa_core *core = userdata; + api->defer_enable(e, 0); + + if (!core->modules) + return; + + pa_idxset_foreach(core->modules, unload_callback, NULL); + +} + +void pa_module_unload_request(pa_module *m) { + assert(m); + + m->unload_requested = 1; + + if (!m->core->module_defer_unload_event) + m->core->module_defer_unload_event = m->core->mainloop->defer_new(m->core->mainloop, defer_cb, m->core); + + m->core->mainloop->defer_enable(m->core->module_defer_unload_event, 1); +} + +void pa_module_set_used(pa_module*m, int used) { + assert(m); + + if (m->n_used != used) + pa_subscription_post(m->core, PA_SUBSCRIPTION_EVENT_MODULE|PA_SUBSCRIPTION_EVENT_CHANGE, m->index); + + if (m->n_used != used && used == 0) + time(&m->last_used_time); + + m->n_used = used; +} + +pa_modinfo *pa_module_get_info(pa_module *m) { + assert(m); + + return pa_modinfo_get_by_handle(m->dl); +} diff --git a/src/pulsecore/module.h b/src/pulsecore/module.h new file mode 100644 index 00000000..9bc5cb5d --- /dev/null +++ b/src/pulsecore/module.h @@ -0,0 +1,70 @@ +#ifndef foomodulehfoo +#define foomodulehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> +#include <ltdl.h> + +#include <pulsecore/core.h> +#include <pulsecore/modinfo.h> + +typedef struct pa_module pa_module; + +struct pa_module { + pa_core *core; + char *name, *argument; + uint32_t index; + + lt_dlhandle dl; + + int (*init)(pa_core *c, pa_module*m); + void (*done)(pa_core *c, pa_module*m); + + void *userdata; + + int n_used; + int auto_unload; + time_t last_used_time; + + int unload_requested; +}; + +pa_module* pa_module_load(pa_core *c, const char *name, const char*argument); +void pa_module_unload(pa_core *c, pa_module *m); +void pa_module_unload_by_index(pa_core *c, uint32_t idx); + +void pa_module_unload_all(pa_core *c); +void pa_module_unload_unused(pa_core *c); + +void pa_module_unload_request(pa_module *m); + +void pa_module_set_used(pa_module*m, int used); + +#define PA_MODULE_AUTHOR(s) const char * pa__get_author(void) { return s; } +#define PA_MODULE_DESCRIPTION(s) const char * pa__get_description(void) { return s; } +#define PA_MODULE_USAGE(s) const char * pa__get_usage(void) { return s; } +#define PA_MODULE_VERSION(s) const char * pa__get_version(void) { return s; } + +pa_modinfo *pa_module_get_info(pa_module *m); + +#endif diff --git a/src/pulsecore/namereg.c b/src/pulsecore/namereg.c new file mode 100644 index 00000000..0f35ed1c --- /dev/null +++ b/src/pulsecore/namereg.c @@ -0,0 +1,214 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include <string.h> +#include <stdio.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/autoload.h> +#include <pulsecore/source.h> +#include <pulsecore/sink.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/core-util.h> + +#include "namereg.h" + +struct namereg_entry { + pa_namereg_type_t type; + char *name; + void *data; +}; + +void pa_namereg_free(pa_core *c) { + assert(c); + if (!c->namereg) + return; + assert(pa_hashmap_size(c->namereg) == 0); + pa_hashmap_free(c->namereg, NULL, NULL); +} + +const char *pa_namereg_register(pa_core *c, const char *name, pa_namereg_type_t type, void *data, int fail) { + struct namereg_entry *e; + char *n = NULL; + int r; + + assert(c && name && data); + + if (!c->namereg) { + c->namereg = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); + assert(c->namereg); + } + + if ((e = pa_hashmap_get(c->namereg, name)) && fail) + return NULL; + + if (!e) + n = pa_xstrdup(name); + else { + unsigned i; + size_t l = strlen(name); + n = pa_xmalloc(l+3); + + for (i = 1; i <= 99; i++) { + snprintf(n, l+2, "%s%u", name, i); + + if (!(e = pa_hashmap_get(c->namereg, n))) + break; + } + + if (e) { + pa_xfree(n); + return NULL; + } + } + + assert(n); + e = pa_xmalloc(sizeof(struct namereg_entry)); + e->type = type; + e->name = n; + e->data = data; + + r = pa_hashmap_put(c->namereg, e->name, e); + assert (r >= 0); + + return e->name; + +} + +void pa_namereg_unregister(pa_core *c, const char *name) { + struct namereg_entry *e; + assert(c && name); + + e = pa_hashmap_remove(c->namereg, name); + assert(e); + + pa_xfree(e->name); + pa_xfree(e); +} + +void* pa_namereg_get(pa_core *c, const char *name, pa_namereg_type_t type, int autoload) { + struct namereg_entry *e; + uint32_t idx; + assert(c); + + if (!name) { + if (type == PA_NAMEREG_SOURCE) + name = pa_namereg_get_default_source_name(c); + else if (type == PA_NAMEREG_SINK) + name = pa_namereg_get_default_sink_name(c); + } + + if (!name) + return NULL; + + if (c->namereg && (e = pa_hashmap_get(c->namereg, name))) + if (e->type == type) + return e->data; + + if (pa_atou(name, &idx) < 0) { + + if (autoload) { + pa_autoload_request(c, name, type); + + if (c->namereg && (e = pa_hashmap_get(c->namereg, name))) + if (e->type == type) + return e->data; + } + + return NULL; + } + + if (type == PA_NAMEREG_SINK) + return pa_idxset_get_by_index(c->sinks, idx); + else if (type == PA_NAMEREG_SOURCE) + return pa_idxset_get_by_index(c->sources, idx); + else if (type == PA_NAMEREG_SAMPLE && c->scache) + return pa_idxset_get_by_index(c->scache, idx); + + return NULL; +} + +void pa_namereg_set_default(pa_core*c, const char *name, pa_namereg_type_t type) { + char **s; + assert(c && (type == PA_NAMEREG_SINK || type == PA_NAMEREG_SOURCE)); + + s = type == PA_NAMEREG_SINK ? &c->default_sink_name : &c->default_source_name; + assert(s); + + if (!name && !*s) + return; + + if (name && *s && !strcmp(name, *s)) + return; + + pa_xfree(*s); + *s = pa_xstrdup(name); + pa_subscription_post(c, PA_SUBSCRIPTION_EVENT_SERVER|PA_SUBSCRIPTION_EVENT_CHANGE, PA_INVALID_INDEX); +} + +const char *pa_namereg_get_default_sink_name(pa_core *c) { + pa_sink *s; + assert(c); + + if (c->default_sink_name) + return c->default_sink_name; + + if ((s = pa_idxset_first(c->sinks, NULL))) + pa_namereg_set_default(c, s->name, PA_NAMEREG_SINK); + + if (c->default_sink_name) + return c->default_sink_name; + + return NULL; +} + +const char *pa_namereg_get_default_source_name(pa_core *c) { + pa_source *s; + uint32_t idx; + + assert(c); + + if (c->default_source_name) + return c->default_source_name; + + for (s = pa_idxset_first(c->sources, &idx); s; s = pa_idxset_next(c->sources, &idx)) + if (!s->monitor_of) { + pa_namereg_set_default(c, s->name, PA_NAMEREG_SOURCE); + break; + } + + if (!c->default_source_name) + if ((s = pa_idxset_first(c->sources, NULL))) + pa_namereg_set_default(c, s->name, PA_NAMEREG_SOURCE); + + if (c->default_source_name) + return c->default_source_name; + + return NULL; +} diff --git a/src/pulsecore/namereg.h b/src/pulsecore/namereg.h new file mode 100644 index 00000000..e1aef8bb --- /dev/null +++ b/src/pulsecore/namereg.h @@ -0,0 +1,43 @@ +#ifndef foonamereghfoo +#define foonamereghfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> + +typedef enum pa_namereg_type { + PA_NAMEREG_SINK, + PA_NAMEREG_SOURCE, + PA_NAMEREG_SAMPLE +} pa_namereg_type_t; + +void pa_namereg_free(pa_core *c); + +const char *pa_namereg_register(pa_core *c, const char *name, pa_namereg_type_t type, void *data, int fail); +void pa_namereg_unregister(pa_core *c, const char *name); +void* pa_namereg_get(pa_core *c, const char *name, pa_namereg_type_t type, int autoload); +void pa_namereg_set_default(pa_core*c, const char *name, pa_namereg_type_t type); + +const char *pa_namereg_get_default_sink_name(pa_core *c); +const char *pa_namereg_get_default_source_name(pa_core *c); + +#endif diff --git a/src/pulsecore/native-common.h b/src/pulsecore/native-common.h new file mode 100644 index 00000000..b35931d0 --- /dev/null +++ b/src/pulsecore/native-common.h @@ -0,0 +1,127 @@ +#ifndef foonativecommonhfoo +#define foonativecommonhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulse/cdecl.h> +#include <pulse/def.h> + +PA_C_DECL_BEGIN + +enum { + /* Generic commands */ + PA_COMMAND_ERROR, + PA_COMMAND_TIMEOUT, /* pseudo command */ + PA_COMMAND_REPLY, + + /* Commands from client to server */ + PA_COMMAND_CREATE_PLAYBACK_STREAM, + PA_COMMAND_DELETE_PLAYBACK_STREAM, + PA_COMMAND_CREATE_RECORD_STREAM, + PA_COMMAND_DELETE_RECORD_STREAM, + PA_COMMAND_EXIT, + PA_COMMAND_AUTH, + PA_COMMAND_SET_CLIENT_NAME, + PA_COMMAND_LOOKUP_SINK, + PA_COMMAND_LOOKUP_SOURCE, + PA_COMMAND_DRAIN_PLAYBACK_STREAM, + PA_COMMAND_STAT, + PA_COMMAND_GET_PLAYBACK_LATENCY, + PA_COMMAND_CREATE_UPLOAD_STREAM, + PA_COMMAND_DELETE_UPLOAD_STREAM, + PA_COMMAND_FINISH_UPLOAD_STREAM, + PA_COMMAND_PLAY_SAMPLE, + PA_COMMAND_REMOVE_SAMPLE, + + PA_COMMAND_GET_SERVER_INFO, + PA_COMMAND_GET_SINK_INFO, + PA_COMMAND_GET_SINK_INFO_LIST, + PA_COMMAND_GET_SOURCE_INFO, + PA_COMMAND_GET_SOURCE_INFO_LIST, + PA_COMMAND_GET_MODULE_INFO, + PA_COMMAND_GET_MODULE_INFO_LIST, + PA_COMMAND_GET_CLIENT_INFO, + PA_COMMAND_GET_CLIENT_INFO_LIST, + PA_COMMAND_GET_SINK_INPUT_INFO, + PA_COMMAND_GET_SINK_INPUT_INFO_LIST, + PA_COMMAND_GET_SOURCE_OUTPUT_INFO, + PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST, + PA_COMMAND_GET_SAMPLE_INFO, + PA_COMMAND_GET_SAMPLE_INFO_LIST, + PA_COMMAND_SUBSCRIBE, + + PA_COMMAND_SET_SINK_VOLUME, + PA_COMMAND_SET_SINK_INPUT_VOLUME, + PA_COMMAND_SET_SOURCE_VOLUME, + + PA_COMMAND_SET_SINK_MUTE, + PA_COMMAND_SET_SOURCE_MUTE, + + PA_COMMAND_CORK_PLAYBACK_STREAM, + PA_COMMAND_FLUSH_PLAYBACK_STREAM, + PA_COMMAND_TRIGGER_PLAYBACK_STREAM, + + PA_COMMAND_SET_DEFAULT_SINK, + PA_COMMAND_SET_DEFAULT_SOURCE, + + PA_COMMAND_SET_PLAYBACK_STREAM_NAME, + PA_COMMAND_SET_RECORD_STREAM_NAME, + + PA_COMMAND_KILL_CLIENT, + PA_COMMAND_KILL_SINK_INPUT, + PA_COMMAND_KILL_SOURCE_OUTPUT, + PA_COMMAND_LOAD_MODULE, + PA_COMMAND_UNLOAD_MODULE, + PA_COMMAND_ADD_AUTOLOAD, + PA_COMMAND_REMOVE_AUTOLOAD, + PA_COMMAND_GET_AUTOLOAD_INFO, + PA_COMMAND_GET_AUTOLOAD_INFO_LIST, + PA_COMMAND_GET_RECORD_LATENCY, + PA_COMMAND_CORK_RECORD_STREAM, + PA_COMMAND_FLUSH_RECORD_STREAM, + PA_COMMAND_PREBUF_PLAYBACK_STREAM, + + /* Commands from server to client */ + PA_COMMAND_REQUEST, + PA_COMMAND_OVERFLOW, + PA_COMMAND_UNDERFLOW, + PA_COMMAND_PLAYBACK_STREAM_KILLED, + PA_COMMAND_RECORD_STREAM_KILLED, + PA_COMMAND_SUBSCRIBE_EVENT, + + PA_COMMAND_MAX +}; + +#define PA_NATIVE_COOKIE_LENGTH 256 +#define PA_NATIVE_COOKIE_FILE ".pulseaudio-cookie" + +#define PA_NATIVE_DEFAULT_PORT 4713 + +#define PA_NATIVE_COOKIE_PROPERTY_NAME "protocol-native-cookie" +#define PA_NATIVE_SERVER_PROPERTY_NAME "protocol-native-server" + +#define PA_NATIVE_DEFAULT_UNIX_SOCKET "native" + + +PA_C_DECL_END + +#endif diff --git a/src/pulsecore/packet.c b/src/pulsecore/packet.c new file mode 100644 index 00000000..8b010f01 --- /dev/null +++ b/src/pulsecore/packet.c @@ -0,0 +1,79 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include "packet.h" + +pa_packet* pa_packet_new(size_t length) { + pa_packet *p; + + assert(length); + + p = pa_xmalloc(sizeof(pa_packet)+length); + p->ref = 1; + p->length = length; + p->data = (uint8_t*) (p+1); + p->type = PA_PACKET_APPENDED; + + return p; +} + +pa_packet* pa_packet_new_dynamic(void* data, size_t length) { + pa_packet *p; + + assert(data); + assert(length); + + p = pa_xnew(pa_packet, 1); + p->ref = 1; + p->length = length; + p->data = data; + p->type = PA_PACKET_DYNAMIC; + + return p; +} + +pa_packet* pa_packet_ref(pa_packet *p) { + assert(p); + assert(p->ref >= 1); + + p->ref++; + return p; +} + +void pa_packet_unref(pa_packet *p) { + assert(p); + assert(p->ref >= 1); + + if (--p->ref == 0) { + if (p->type == PA_PACKET_DYNAMIC) + pa_xfree(p->data); + pa_xfree(p); + } +} diff --git a/src/pulsecore/packet.h b/src/pulsecore/packet.h new file mode 100644 index 00000000..7842857a --- /dev/null +++ b/src/pulsecore/packet.h @@ -0,0 +1,41 @@ +#ifndef foopackethfoo +#define foopackethfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> +#include <inttypes.h> + +typedef struct pa_packet { + enum { PA_PACKET_APPENDED, PA_PACKET_DYNAMIC } type; + unsigned ref; + size_t length; + uint8_t *data; +} pa_packet; + +pa_packet* pa_packet_new(size_t length); +pa_packet* pa_packet_new_dynamic(void* data, size_t length); + +pa_packet* pa_packet_ref(pa_packet *p); +void pa_packet_unref(pa_packet *p); + +#endif diff --git a/src/pulsecore/parseaddr.c b/src/pulsecore/parseaddr.c new file mode 100644 index 00000000..da1647af --- /dev/null +++ b/src/pulsecore/parseaddr.c @@ -0,0 +1,115 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include <pulse/util.h> +#include <pulsecore/core-util.h> + +#include "parseaddr.h" + +/* Parse addresses in one of the following forms: + * HOSTNAME + * HOSTNAME:PORT + * [HOSTNAME] + * [HOSTNAME]:PORT + * + * Return a newly allocated string of the hostname and fill in *ret_port if specified */ + +static char *parse_host(const char *s, uint16_t *ret_port) { + assert(s && ret_port); + if (*s == '[') { + char *e; + if (!(e = strchr(s+1, ']'))) + return NULL; + + if (e[1] == ':') + *ret_port = atoi(e+2); + else if (e[1] != 0) + return NULL; + + return pa_xstrndup(s+1, e-s-1); + } else { + char *e; + + if (!(e = strrchr(s, ':'))) + return pa_xstrdup(s); + + *ret_port = atoi(e+1); + return pa_xstrndup(s, e-s); + } +} + +int pa_parse_address(const char *name, pa_parsed_address *ret_p) { + const char *p; + assert(name && ret_p); + memset(ret_p, 0, sizeof(pa_parsed_address)); + ret_p->type = PA_PARSED_ADDRESS_TCP_AUTO; + + if (*name == '{') { + char hn[256], *pfx; + /* The URL starts with a host specification for detecting local connections */ + + if (!pa_get_host_name(hn, sizeof(hn))) + return -1; + + pfx = pa_sprintf_malloc("{%s}", hn); + if (!pa_startswith(name, pfx)) { + pa_xfree(pfx); + /* Not local */ + return -1; + } + + p = name + strlen(pfx); + pa_xfree(pfx); + } else + p = name; + + if (*p == '/') + ret_p->type = PA_PARSED_ADDRESS_UNIX; + else if (pa_startswith(p, "unix:")) { + ret_p->type = PA_PARSED_ADDRESS_UNIX; + p += sizeof("unix:")-1; + } else if (pa_startswith(p, "tcp:") || pa_startswith(p, "tcp4:")) { + ret_p->type = PA_PARSED_ADDRESS_TCP4; + p += sizeof("tcp:")-1; + } else if (pa_startswith(p, "tcp6:")) { + ret_p->type = PA_PARSED_ADDRESS_TCP6; + p += sizeof("tcp6:")-1; + } + + if (ret_p->type == PA_PARSED_ADDRESS_UNIX) + ret_p->path_or_host = pa_xstrdup(p); + else + if (!(ret_p->path_or_host = parse_host(p, &ret_p->port))) + return -1; + + + return 0; +} diff --git a/src/pulsecore/parseaddr.h b/src/pulsecore/parseaddr.h new file mode 100644 index 00000000..0393f665 --- /dev/null +++ b/src/pulsecore/parseaddr.h @@ -0,0 +1,42 @@ +#ifndef fooparseaddrhfoo +#define fooparseaddrhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +typedef enum pa_parsed_address_type { + PA_PARSED_ADDRESS_UNIX, + PA_PARSED_ADDRESS_TCP4, + PA_PARSED_ADDRESS_TCP6, + PA_PARSED_ADDRESS_TCP_AUTO +} pa_parsed_address_type_t; + +typedef struct pa_parsed_address { + pa_parsed_address_type_t type; + char *path_or_host; + uint16_t port; +} pa_parsed_address; + +int pa_parse_address(const char *a, pa_parsed_address *ret_p); + +#endif diff --git a/src/pulsecore/pdispatch.c b/src/pulsecore/pdispatch.c new file mode 100644 index 00000000..5b76b432 --- /dev/null +++ b/src/pulsecore/pdispatch.c @@ -0,0 +1,318 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> + +#include <pulse/timeval.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/native-common.h> +#include <pulsecore/llist.h> +#include <pulsecore/log.h> +#include <pulsecore/core-util.h> + +#include "pdispatch.h" + +/*#define DEBUG_OPCODES */ + +#ifdef DEBUG_OPCODES + +static const char *command_names[PA_COMMAND_MAX] = { + [PA_COMMAND_ERROR] = "ERROR", + [PA_COMMAND_TIMEOUT] = "TIMEOUT", + [PA_COMMAND_REPLY] = "REPLY", + [PA_COMMAND_CREATE_PLAYBACK_STREAM] = "CREATE_PLAYBACK_STREAM", + [PA_COMMAND_DELETE_PLAYBACK_STREAM] = "DELETE_PLAYBACK_STREAM", + [PA_COMMAND_CREATE_RECORD_STREAM] = "CREATE_RECORD_STREAM", + [PA_COMMAND_DELETE_RECORD_STREAM] = "DELETE_RECORD_STREAM", + [PA_COMMAND_AUTH] = "AUTH", + [PA_COMMAND_REQUEST] = "REQUEST", + [PA_COMMAND_EXIT] = "EXIT", + [PA_COMMAND_SET_CLIENT_NAME] = "SET_CLIENT_NAME", + [PA_COMMAND_LOOKUP_SINK] = "LOOKUP_SINK", + [PA_COMMAND_LOOKUP_SOURCE] = "LOOKUP_SOURCE", + [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = "DRAIN_PLAYBACK_STREAM", + [PA_COMMAND_PLAYBACK_STREAM_KILLED] = "PLAYBACK_STREAM_KILLED", + [PA_COMMAND_RECORD_STREAM_KILLED] = "RECORD_STREAM_KILLED", + [PA_COMMAND_STAT] = "STAT", + [PA_COMMAND_GET_PLAYBACK_LATENCY] = "PLAYBACK_LATENCY", + [PA_COMMAND_CREATE_UPLOAD_STREAM] = "CREATE_UPLOAD_STREAM", + [PA_COMMAND_DELETE_UPLOAD_STREAM] = "DELETE_UPLOAD_STREAM", + [PA_COMMAND_FINISH_UPLOAD_STREAM] = "FINISH_UPLOAD_STREAM", + [PA_COMMAND_PLAY_SAMPLE] = "PLAY_SAMPLE", + [PA_COMMAND_REMOVE_SAMPLE] = "REMOVE_SAMPLE", + [PA_COMMAND_GET_SERVER_INFO] = "GET_SERVER_INFO", + [PA_COMMAND_GET_SINK_INFO] = "GET_SINK_INFO", + [PA_COMMAND_GET_SINK_INFO_LIST] = "GET_SINK_INFO_LIST", + [PA_COMMAND_GET_SOURCE_INFO] = "GET_SOURCE_INFO", + [PA_COMMAND_GET_SOURCE_INFO_LIST] = "GET_SOURCE_INFO_LIST", + [PA_COMMAND_GET_MODULE_INFO] = "GET_MODULE_INFO", + [PA_COMMAND_GET_MODULE_INFO_LIST] = "GET_MODULE_INFO_LIST", + [PA_COMMAND_GET_CLIENT_INFO] = "GET_CLIENT_INFO", + [PA_COMMAND_GET_CLIENT_INFO_LIST] = "GET_CLIENT_INFO_LIST", + [PA_COMMAND_GET_SAMPLE_INFO] = "GET_SAMPLE_INFO", + [PA_COMMAND_GET_SAMPLE_INFO_LIST] = "GET_SAMPLE_INFO_LIST", + [PA_COMMAND_GET_SINK_INPUT_INFO] = "GET_SINK_INPUT_INFO", + [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = "GET_SINK_INPUT_INFO_LIST", + [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = "GET_SOURCE_OUTPUT_INFO", + [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = "GET_SOURCE_OUTPUT_INFO_LIST", + [PA_COMMAND_SUBSCRIBE] = "SUBSCRIBE", + [PA_COMMAND_SUBSCRIBE_EVENT] = "SUBSCRIBE_EVENT", + [PA_COMMAND_SET_SINK_VOLUME] = "SET_SINK_VOLUME", + [PA_COMMAND_SET_SINK_INPUT_VOLUME] = "SET_SINK_INPUT_VOLUME", + [PA_COMMAND_SET_SOURCE_VOLUME] = "SET_SOURCE_VOLME", + [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = "TRIGGER_PLAYBACK_STREAM", + [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = "FLUSH_PLAYBACK_STREAM", + [PA_COMMAND_CORK_PLAYBACK_STREAM] = "CORK_PLAYBACK_STREAM", + [PA_COMMAND_GET_AUTOLOAD_INFO] = "GET_AUTOLOAD_INFO", + [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = "GET_AUTOLOAD_INFO_LIST", +}; + +#endif + +struct reply_info { + pa_pdispatch *pdispatch; + PA_LLIST_FIELDS(struct reply_info); + pa_pdispatch_cb_t callback; + void *userdata; + pa_free_cb_t free_cb; + uint32_t tag; + pa_time_event *time_event; +}; + +struct pa_pdispatch { + int ref; + pa_mainloop_api *mainloop; + const pa_pdispatch_cb_t *callback_table; + unsigned n_commands; + PA_LLIST_HEAD(struct reply_info, replies); + pa_pdispatch_drain_callback drain_callback; + void *drain_userdata; + const void *creds; +}; + +static void reply_info_free(struct reply_info *r) { + assert(r && r->pdispatch && r->pdispatch->mainloop); + + if (r->time_event) + r->pdispatch->mainloop->time_free(r->time_event); + + PA_LLIST_REMOVE(struct reply_info, r->pdispatch->replies, r); + + pa_xfree(r); +} + +pa_pdispatch* pa_pdispatch_new(pa_mainloop_api *mainloop, const pa_pdispatch_cb_t*table, unsigned entries) { + pa_pdispatch *pd; + assert(mainloop); + + assert((entries && table) || (!entries && !table)); + + pd = pa_xmalloc(sizeof(pa_pdispatch)); + pd->ref = 1; + pd->mainloop = mainloop; + pd->callback_table = table; + pd->n_commands = entries; + PA_LLIST_HEAD_INIT(pa_reply_info, pd->replies); + pd->drain_callback = NULL; + pd->drain_userdata = NULL; + pd->creds = NULL; + + return pd; +} + +static void pdispatch_free(pa_pdispatch *pd) { + assert(pd); + + while (pd->replies) { + if (pd->replies->free_cb) + pd->replies->free_cb(pd->replies->userdata); + + reply_info_free(pd->replies); + } + + pa_xfree(pd); +} + +static void run_action(pa_pdispatch *pd, struct reply_info *r, uint32_t command, pa_tagstruct *ts) { + pa_pdispatch_cb_t callback; + void *userdata; + uint32_t tag; + assert(r); + + pa_pdispatch_ref(pd); + + callback = r->callback; + userdata = r->userdata; + tag = r->tag; + + reply_info_free(r); + + callback(pd, command, tag, ts, userdata); + + if (pd->drain_callback && !pa_pdispatch_is_pending(pd)) + pd->drain_callback(pd, pd->drain_userdata); + + pa_pdispatch_unref(pd); +} + +int pa_pdispatch_run(pa_pdispatch *pd, pa_packet*packet, const void *creds, void *userdata) { + uint32_t tag, command; + pa_tagstruct *ts = NULL; + int ret = -1; + assert(pd && packet && packet->data); + + pa_pdispatch_ref(pd); + + if (packet->length <= 8) + goto finish; + + ts = pa_tagstruct_new(packet->data, packet->length); + assert(ts); + + if (pa_tagstruct_getu32(ts, &command) < 0 || + pa_tagstruct_getu32(ts, &tag) < 0) + goto finish; + +#ifdef DEBUG_OPCODES +{ + char t[256]; + char const *p; + if (!(p = command_names[command])) + snprintf((char*) (p = t), sizeof(t), "%u", command); + + pa_log(__FILE__": Recieved opcode <%s>", p); +} +#endif + + pd->creds = creds; + + if (command == PA_COMMAND_ERROR || command == PA_COMMAND_REPLY) { + struct reply_info *r; + + for (r = pd->replies; r; r = r->next) + if (r->tag == tag) + break; + + if (r) + run_action(pd, r, command, ts); + + } else if (pd->callback_table && (command < pd->n_commands) && pd->callback_table[command]) { + const pa_pdispatch_cb_t *c = pd->callback_table+command; + + (*c)(pd, command, tag, ts, userdata); + } else { + pa_log(__FILE__": Recieved unsupported command %u", command); + goto finish; + } + + ret = 0; + +finish: + pd->creds = NULL; + + if (ts) + pa_tagstruct_free(ts); + + pa_pdispatch_unref(pd); + + return ret; +} + +static void timeout_callback(pa_mainloop_api*m, pa_time_event*e, PA_GCC_UNUSED const struct timeval *tv, void *userdata) { + struct reply_info*r = userdata; + assert(r && r->time_event == e && r->pdispatch && r->pdispatch->mainloop == m && r->callback); + + run_action(r->pdispatch, r, PA_COMMAND_TIMEOUT, NULL); +} + +void pa_pdispatch_register_reply(pa_pdispatch *pd, uint32_t tag, int timeout, pa_pdispatch_cb_t cb, void *userdata, pa_free_cb_t free_cb) { + struct reply_info *r; + struct timeval tv; + assert(pd && pd->ref >= 1 && cb); + + r = pa_xmalloc(sizeof(struct reply_info)); + r->pdispatch = pd; + r->callback = cb; + r->userdata = userdata; + r->free_cb = free_cb; + r->tag = tag; + + pa_gettimeofday(&tv); + tv.tv_sec += timeout; + + r->time_event = pd->mainloop->time_new(pd->mainloop, &tv, timeout_callback, r); + assert(r->time_event); + + PA_LLIST_PREPEND(struct reply_info, pd->replies, r); +} + +int pa_pdispatch_is_pending(pa_pdispatch *pd) { + assert(pd); + + return !!pd->replies; +} + +void pa_pdispatch_set_drain_callback(pa_pdispatch *pd, void (*cb)(pa_pdispatch *pd, void *userdata), void *userdata) { + assert(pd); + assert(!cb || pa_pdispatch_is_pending(pd)); + + pd->drain_callback = cb; + pd->drain_userdata = userdata; +} + +void pa_pdispatch_unregister_reply(pa_pdispatch *pd, void *userdata) { + struct reply_info *r, *n; + assert(pd); + + for (r = pd->replies; r; r = n) { + n = r->next; + + if (r->userdata == userdata) + reply_info_free(r); + } +} + +void pa_pdispatch_unref(pa_pdispatch *pd) { + assert(pd && pd->ref >= 1); + + if (!(--(pd->ref))) + pdispatch_free(pd); +} + +pa_pdispatch* pa_pdispatch_ref(pa_pdispatch *pd) { + assert(pd && pd->ref >= 1); + pd->ref++; + return pd; +} + +const void * pa_pdispatch_creds(pa_pdispatch *pd) { + assert(pd); + assert(pd->ref >= 1); + + return pd->creds; +} diff --git a/src/pulsecore/pdispatch.h b/src/pulsecore/pdispatch.h new file mode 100644 index 00000000..07620e5a --- /dev/null +++ b/src/pulsecore/pdispatch.h @@ -0,0 +1,53 @@ +#ifndef foopdispatchhfoo +#define foopdispatchhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> +#include <pulse/mainloop-api.h> +#include <pulse/def.h> +#include <pulsecore/tagstruct.h> +#include <pulsecore/packet.h> + +typedef struct pa_pdispatch pa_pdispatch; + +typedef void (*pa_pdispatch_cb_t)(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +typedef void (*pa_pdispatch_drain_callback)(pa_pdispatch *pd, void *userdata); + +pa_pdispatch* pa_pdispatch_new(pa_mainloop_api *m, const pa_pdispatch_cb_t*table, unsigned entries); +void pa_pdispatch_unref(pa_pdispatch *pd); +pa_pdispatch* pa_pdispatch_ref(pa_pdispatch *pd); + +int pa_pdispatch_run(pa_pdispatch *pd, pa_packet*p, const void*creds, void *userdata); + +void pa_pdispatch_register_reply(pa_pdispatch *pd, uint32_t tag, int timeout, pa_pdispatch_cb_t callback, void *userdata, pa_free_cb_t free_cb); + +int pa_pdispatch_is_pending(pa_pdispatch *pd); + +void pa_pdispatch_set_drain_callback(pa_pdispatch *pd, pa_pdispatch_drain_callback callback, void *userdata); + +/* Remove all reply slots with the give userdata parameter */ +void pa_pdispatch_unregister_reply(pa_pdispatch *pd, void *userdata); + +const void * pa_pdispatch_creds(pa_pdispatch *pd); + +#endif diff --git a/src/pulsecore/pid.c b/src/pulsecore/pid.c new file mode 100644 index 00000000..b8972866 --- /dev/null +++ b/src/pulsecore/pid.c @@ -0,0 +1,304 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <sys/types.h> +#include <sys/stat.h> +#include <string.h> +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <limits.h> +#include <signal.h> + +#ifdef HAVE_WINDOWS_H +#include <windows.h> +#endif + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-error.h> +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> + +#include "pid.h" + +/* Read the PID data from the file descriptor fd, and return it. If no + * pid could be read, return 0, on failure (pid_t) -1 */ +static pid_t read_pid(const char *fn, int fd) { + ssize_t r; + char t[20], *e; + uint32_t pid; + + assert(fn && fd >= 0); + + if ((r = pa_loop_read(fd, t, sizeof(t)-1)) < 0) { + pa_log_warn(__FILE__": WARNING: failed to read PID file '%s': %s", + fn, pa_cstrerror(errno)); + return (pid_t) -1; + } + + if (r == 0) + return (pid_t) 0; + + t[r] = 0; + if ((e = strchr(t, '\n'))) + *e = 0; + + if (pa_atou(t, &pid) < 0) { + pa_log(__FILE__": WARNING: failed to parse PID file '%s'", fn); + return (pid_t) -1; + } + + return (pid_t) pid; +} + +static int open_pid_file(const char *fn, int mode) { + int fd = -1; + int lock = -1; + + for (;;) { + struct stat st; + + pa_make_secure_parent_dir(fn); + + if ((fd = open(fn, mode, S_IRUSR|S_IWUSR)) < 0) { + if (mode != O_RDONLY || errno != ENOENT) + pa_log_warn(__FILE__": WARNING: failed to open PID file '%s': %s", + fn, pa_cstrerror(errno)); + goto fail; + } + + /* Try to lock the file. If that fails, go without */ + if (pa_lock_fd(fd, 1) < 0) + goto fail; + + if (fstat(fd, &st) < 0) { + pa_log_warn(__FILE__": WARNING: failed to fstat() PID file '%s': %s", + fn, pa_cstrerror(errno)); + goto fail; + } + + /* Does the file still exist in the file system? When ye, w're done, otherwise restart */ + if (st.st_nlink >= 1) + break; + + if (pa_lock_fd(fd, 0) < 0) + goto fail; + + if (close(fd) < 0) { + pa_log_warn(__FILE__": WARNING: failed to close file '%s': %s", + fn, pa_cstrerror(errno)); + goto fail; + } + + fd = -1; + } + + return fd; + +fail: + + if (fd < 0) { + if (lock >= 0) + pa_lock_fd(fd, 0); + + close(fd); + } + + return -1; +} + +/* Create a new PID file for the current process. */ +int pa_pid_file_create(void) { + int fd = -1; + int ret = -1; + char fn[PATH_MAX]; + char t[20]; + pid_t pid; + size_t l; + +#ifdef OS_IS_WIN32 + HANDLE process; +#endif + + pa_runtime_path("pid", fn, sizeof(fn)); + + if ((fd = open_pid_file(fn, O_CREAT|O_RDWR)) < 0) + goto fail; + + if ((pid = read_pid(fn, fd)) == (pid_t) -1) + pa_log(__FILE__": corrupt PID file, overwriting."); + else if (pid > 0) { +#ifdef OS_IS_WIN32 + if ((process = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid)) != NULL) { + CloseHandle(process); +#else + if (kill(pid, 0) >= 0 || errno != ESRCH) { +#endif + pa_log(__FILE__": daemon already running."); + goto fail; + } + + pa_log(__FILE__": stale PID file, overwriting."); + } + + /* Overwrite the current PID file */ + if (lseek(fd, 0, SEEK_SET) == (off_t) -1 || ftruncate(fd, 0) < 0) { + pa_log(__FILE__": failed to truncate PID file '%s': %s", + fn, pa_cstrerror(errno)); + goto fail; + } + + snprintf(t, sizeof(t), "%lu\n", (unsigned long) getpid()); + l = strlen(t); + + if (pa_loop_write(fd, t, l) != (ssize_t) l) { + pa_log(__FILE__": failed to write PID file."); + goto fail; + } + + ret = 0; + +fail: + if (fd >= 0) { + pa_lock_fd(fd, 0); + close(fd); + } + + return ret; +} + +/* Remove the PID file, if it is ours */ +int pa_pid_file_remove(void) { + int fd = -1; + char fn[PATH_MAX]; + int ret = -1; + pid_t pid; + char *p; + + pa_runtime_path("pid", fn, sizeof(fn)); + + if ((fd = open_pid_file(fn, O_RDWR)) < 0) { + pa_log_warn(__FILE__": WARNING: failed to open PID file '%s': %s", + fn, pa_cstrerror(errno)); + goto fail; + } + + if ((pid = read_pid(fn, fd)) == (pid_t) -1) + goto fail; + + if (pid != getpid()) { + pa_log(__FILE__": WARNING: PID file '%s' not mine!", fn); + goto fail; + } + + if (ftruncate(fd, 0) < 0) { + pa_log_warn(__FILE__": WARNING: failed to truncate PID file '%s': %s", + fn, pa_cstrerror(errno)); + goto fail; + } + +#ifdef OS_IS_WIN32 + pa_lock_fd(fd, 0); + close(fd); + fd = -1; +#endif + + if (unlink(fn) < 0) { + pa_log_warn(__FILE__": WARNING: failed to remove PID file '%s': %s", + fn, pa_cstrerror(errno)); + goto fail; + } + + if ((p = pa_parent_dir(fn))) { + rmdir(p); + pa_xfree(p); + } + + ret = 0; + +fail: + + if (fd >= 0) { + pa_lock_fd(fd, 0); + close(fd); + } + + return ret; +} + +/* Check whether the daemon is currently running, i.e. if a PID file + * exists and the PID therein too. Returns 0 on succcess, -1 + * otherwise. If pid is non-NULL and a running daemon was found, + * return its PID therein */ +int pa_pid_file_check_running(pid_t *pid) { + return pa_pid_file_kill(0, pid); +} + +#ifndef OS_IS_WIN32 + +/* Kill a current running daemon. Return non-zero on success, -1 + * otherwise. If successful *pid contains the PID of the daemon + * process. */ +int pa_pid_file_kill(int sig, pid_t *pid) { + int fd = -1; + char fn[PATH_MAX]; + int ret = -1; + pid_t _pid; + + if (!pid) + pid = &_pid; + + pa_runtime_path("pid", fn, sizeof(fn)); + + if ((fd = open_pid_file(fn, O_RDONLY)) < 0) + goto fail; + + if ((*pid = read_pid(fn, fd)) == (pid_t) -1) + goto fail; + + ret = kill(*pid, sig); + +fail: + + if (fd >= 0) { + pa_lock_fd(fd, 0); + close(fd); + } + + return ret; + +} + +#else /* OS_IS_WIN32 */ + +int pa_pid_file_kill(int sig, pid_t *pid) { + return -1; +} + +#endif diff --git a/src/pulsecore/pid.h b/src/pulsecore/pid.h new file mode 100644 index 00000000..bd476b29 --- /dev/null +++ b/src/pulsecore/pid.h @@ -0,0 +1,30 @@ +#ifndef foopidhfoo +#define foopidhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +int pa_pid_file_create(void); +int pa_pid_file_remove(void); +int pa_pid_file_check_running(pid_t *pid); +int pa_pid_file_kill(int sig, pid_t *pid); + +#endif diff --git a/src/pulsecore/pipe.c b/src/pulsecore/pipe.c new file mode 100644 index 00000000..6933e180 --- /dev/null +++ b/src/pulsecore/pipe.c @@ -0,0 +1,160 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify it + under the terms of the GNU Library General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with PulseAudio; If not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <errno.h> +#include <unistd.h> +#include <fcntl.h> + +#include <sys/types.h> + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif + +#include "winsock.h" + +#include "pipe.h" + +#ifndef HAVE_PIPE + +static int set_block(int fd, int blocking) { +#ifdef O_NONBLOCK + + int v; + + assert(fd >= 0); + + if ((v = fcntl(fd, F_GETFL)) < 0) + return -1; + + if (blocking) + v &= ~O_NONBLOCK; + else + v |= O_NONBLOCK; + + if (fcntl(fd, F_SETFL, v) < 0) + return -1; + + return 0; + +#elif defined(OS_IS_WIN32) + + u_long arg; + + arg = !blocking; + + if (ioctlsocket(fd, FIONBIO, &arg) < 0) + return -1; + + return 0; + +#else + + return -1; + +#endif +} + +int pipe(int filedes[2]) { + int listener; + struct sockaddr_in addr, peer; + socklen_t len; + + listener = -1; + filedes[0] = -1; + filedes[1] = -1; + + listener = socket(PF_INET, SOCK_STREAM, 0); + if (listener < 0) + goto error; + + filedes[0] = socket(PF_INET, SOCK_STREAM, 0); + if (filedes[0] < 0) + goto error; + + filedes[1] = socket(PF_INET, SOCK_STREAM, 0); + if (filedes[1] < 0) + goto error; + + /* Make non-blocking so that connect() won't block */ + if (set_block(filedes[0], 0) < 0) + goto error; + + addr.sin_family = AF_INET; + addr.sin_port = 0; + addr.sin_addr.s_addr = htonl(INADDR_LOOPBACK); + + if (bind(listener, (struct sockaddr*)&addr, sizeof(addr)) < 0) + goto error; + + if (listen(listener, 1) < 0) + goto error; + + len = sizeof(addr); + if (getsockname(listener, (struct sockaddr*)&addr, &len) < 0) + goto error; + + if (connect(filedes[0], (struct sockaddr*)&addr, sizeof(addr)) < 0) { +#ifdef OS_IS_WIN32 + if (WSAGetLastError() != EWOULDBLOCK) +#else + if (errno != EINPROGRESS) +#endif + goto error; + } + + len = sizeof(peer); + filedes[1] = accept(listener, (struct sockaddr*)&peer, &len); + if (filedes[1] < 0) + goto error; + + /* Restore blocking */ + if (set_block(filedes[0], 1) < 0) + goto error; + + len = sizeof(addr); + if (getsockname(filedes[0], (struct sockaddr*)&addr, &len) < 0) + goto error; + + /* Check that someone else didn't steal the connection */ + if ((addr.sin_port != peer.sin_port) || (addr.sin_addr.s_addr != peer.sin_addr.s_addr)) + goto error; + + close(listener); + + return 0; + +error: + if (listener >= 0) + close(listener); + if (filedes[0] >= 0) + close(filedes[0]); + if (filedes[1] >= 0) + close(filedes[0]); + + return -1; +} + +#endif /* HAVE_PIPE */ diff --git a/src/pulsecore/pipe.h b/src/pulsecore/pipe.h new file mode 100644 index 00000000..a2514760 --- /dev/null +++ b/src/pulsecore/pipe.h @@ -0,0 +1,31 @@ +#ifndef foopipehfoo +#define foopipehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify it + under the terms of the GNU Library General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with PulseAudio; If not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. +***/ + +#ifndef HAVE_PIPE + +int pipe(int filedes[2]); + +#endif + +#endif diff --git a/src/pulsecore/play-memchunk.c b/src/pulsecore/play-memchunk.c new file mode 100644 index 00000000..7ac579e9 --- /dev/null +++ b/src/pulsecore/play-memchunk.c @@ -0,0 +1,117 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <stdio.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/sink-input.h> +#include <pulsecore/gccmacro.h> + +#include "play-memchunk.h" + +static void sink_input_kill(pa_sink_input *i) { + pa_memchunk *c; + assert(i && i->userdata); + c = i->userdata; + + pa_sink_input_disconnect(i); + pa_sink_input_unref(i); + + pa_memblock_unref(c->memblock); + pa_xfree(c); +} + +static int sink_input_peek(pa_sink_input *i, pa_memchunk *chunk) { + pa_memchunk *c; + assert(i && chunk && i->userdata); + c = i->userdata; + + if (c->length <= 0) + return -1; + + assert(c->memblock && c->memblock->length); + *chunk = *c; + pa_memblock_ref(c->memblock); + + return 0; +} + +static void si_kill(PA_GCC_UNUSED pa_mainloop_api *m, void *i) { + sink_input_kill(i); +} + +static void sink_input_drop(pa_sink_input *i, const pa_memchunk*chunk, size_t length) { + pa_memchunk *c; + assert(i && length && i->userdata); + c = i->userdata; + + assert(!memcmp(chunk, c, sizeof(chunk))); + assert(length <= c->length); + + c->length -= length; + c->index += length; + + if (c->length <= 0) + pa_mainloop_api_once(i->sink->core->mainloop, si_kill, i); +} + +int pa_play_memchunk( + pa_sink *sink, + const char *name, + const pa_sample_spec *ss, + const pa_channel_map *map, + const pa_memchunk *chunk, + pa_cvolume *cvolume) { + + pa_sink_input *si; + pa_memchunk *nchunk; + + assert(sink); + assert(ss); + assert(chunk); + + if (cvolume && pa_cvolume_is_muted(cvolume)) + return 0; + + if (!(si = pa_sink_input_new(sink, name, __FILE__, ss, map, cvolume, 0, PA_RESAMPLER_INVALID))) + return -1; + + si->peek = sink_input_peek; + si->drop = sink_input_drop; + si->kill = sink_input_kill; + + si->userdata = nchunk = pa_xnew(pa_memchunk, 1); + *nchunk = *chunk; + + pa_memblock_ref(chunk->memblock); + + pa_sink_notify(sink); + + return 0; +} diff --git a/src/pulsecore/play-memchunk.h b/src/pulsecore/play-memchunk.h new file mode 100644 index 00000000..3d5b8cc6 --- /dev/null +++ b/src/pulsecore/play-memchunk.h @@ -0,0 +1,36 @@ +#ifndef fooplaychunkhfoo +#define fooplaychunkhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/sink.h> +#include <pulsecore/memchunk.h> + +int pa_play_memchunk( + pa_sink *sink, + const char *name, + const pa_sample_spec *ss, + const pa_channel_map *map, + const pa_memchunk *chunk, + pa_cvolume *cvolume); + +#endif diff --git a/src/pulsecore/poll.c b/src/pulsecore/poll.c new file mode 100644 index 00000000..3f9ace7c --- /dev/null +++ b/src/pulsecore/poll.c @@ -0,0 +1,191 @@ +/* $Id$ */ + +/*** + Copyright (C) 1994, 1996, 1997 Free Software Foundation, Inc. + Copyright (C) 2005, Cendio AB. + This file is part of PulseAudio. + Based on work for the GNU C Library. + + PulseAudio is free software; you can redistribute it and/or modify it + under the terms of the GNU Library General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with PulseAudio; If not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. +***/ + +/* Poll the file descriptors described by the NFDS structures starting at + FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for + an event to occur; if TIMEOUT is -1, block until an event occurs. + Returns the number of file descriptors with events, zero if timed out, + or -1 for errors. */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <errno.h> + +#ifdef HAVE_SYS_SELECT_H +#include <sys/select.h> +#endif + +#include "winsock.h" + +#ifndef HAVE_SYS_POLL_H + +#include <pulsecore/core-util.h> + +#include "poll.h" + +int poll (struct pollfd *fds, unsigned long int nfds, int timeout) { + struct timeval tv; + fd_set rset, wset, xset; + struct pollfd *f; + int ready; + int maxfd = 0; + char data[64]; + + FD_ZERO (&rset); + FD_ZERO (&wset); + FD_ZERO (&xset); + + if (nfds == 0) { + if (timeout >= 0) { + pa_msleep(timeout); + return 0; + } + +#ifdef OS_IS_WIN32 + /* + * Windows does not support signals properly so waiting for them would + * mean a deadlock. + */ + pa_msleep(100); + return 0; +#else + return select(0, NULL, NULL, NULL, NULL); +#endif + } + + for (f = fds; f < &fds[nfds]; ++f) { + if (f->fd != -1) { + if (f->events & POLLIN) + FD_SET (f->fd, &rset); + if (f->events & POLLOUT) + FD_SET (f->fd, &wset); + if (f->events & POLLPRI) + FD_SET (f->fd, &xset); + if (f->fd > maxfd && (f->events & (POLLIN|POLLOUT|POLLPRI))) + maxfd = f->fd; + } + } + + tv.tv_sec = timeout / 1000; + tv.tv_usec = (timeout % 1000) * 1000; + + ready = select ((SELECT_TYPE_ARG1) maxfd + 1, SELECT_TYPE_ARG234 &rset, + SELECT_TYPE_ARG234 &wset, SELECT_TYPE_ARG234 &xset, + SELECT_TYPE_ARG5 (timeout == -1 ? NULL : &tv)); + if ((ready == -1) && (errno == EBADF)) { + ready = 0; + + FD_ZERO (&rset); + FD_ZERO (&wset); + FD_ZERO (&xset); + + maxfd = -1; + + for (f = fds; f < &fds[nfds]; ++f) { + if (f->fd != -1) { + fd_set sngl_rset, sngl_wset, sngl_xset; + + FD_ZERO (&sngl_rset); + FD_ZERO (&sngl_wset); + FD_ZERO (&sngl_xset); + + if (f->events & POLLIN) + FD_SET (f->fd, &sngl_rset); + if (f->events & POLLOUT) + FD_SET (f->fd, &sngl_wset); + if (f->events & POLLPRI) + FD_SET (f->fd, &sngl_xset); + if (f->events & (POLLIN|POLLOUT|POLLPRI)) { + struct timeval singl_tv; + + singl_tv.tv_sec = 0; + singl_tv.tv_usec = 0; + + if (select((SELECT_TYPE_ARG1) f->fd, SELECT_TYPE_ARG234 &rset, + SELECT_TYPE_ARG234 &wset, SELECT_TYPE_ARG234 &xset, + SELECT_TYPE_ARG5 &singl_tv) != -1) { + if (f->events & POLLIN) + FD_SET (f->fd, &rset); + if (f->events & POLLOUT) + FD_SET (f->fd, &wset); + if (f->events & POLLPRI) + FD_SET (f->fd, &xset); + if (f->fd > maxfd && (f->events & (POLLIN|POLLOUT|POLLPRI))) + maxfd = f->fd; + ++ready; + } else if (errno == EBADF) + f->revents |= POLLNVAL; + } + } + } + + if (ready) { + /* Linux alters the tv struct... but it shouldn't matter here ... + * as we're going to be a little bit out anyway as we've just eaten + * more than a couple of cpu cycles above */ + ready = select ((SELECT_TYPE_ARG1) maxfd + 1, SELECT_TYPE_ARG234 &rset, + SELECT_TYPE_ARG234 &wset, SELECT_TYPE_ARG234 &xset, + SELECT_TYPE_ARG5 (timeout == -1 ? NULL : &tv)); + } + } + +#ifdef OS_IS_WIN32 + errno = WSAGetLastError(); +#endif + + if (ready > 0) { + ready = 0; + for (f = fds; f < &fds[nfds]; ++f) { + f->revents = 0; + if (f->fd != -1) { + if (FD_ISSET (f->fd, &rset)) { + /* support for POLLHUP. An hung up descriptor does not + increase the return value! */ + if (recv (f->fd, data, 64, MSG_PEEK) == -1) { + if (errno == ESHUTDOWN || errno == ECONNRESET || + errno == ECONNABORTED || errno == ENETRESET) { + fprintf(stderr, "Hangup\n"); + f->revents |= POLLHUP; + } + } + + if (f->revents == 0) + f->revents |= POLLIN; + } + if (FD_ISSET (f->fd, &wset)) + f->revents |= POLLOUT; + if (FD_ISSET (f->fd, &xset)) + f->revents |= POLLPRI; + } + if (f->revents) + ready++; + } + } + + return ready; +} + +#endif /* HAVE_SYS_POLL_H */ diff --git a/src/pulsecore/poll.h b/src/pulsecore/poll.h new file mode 100644 index 00000000..bed772c7 --- /dev/null +++ b/src/pulsecore/poll.h @@ -0,0 +1,57 @@ +/* $Id$ */ + +/*** + Compatibility definitions for System V `poll' interface. + Copyright (C) 1994,96,97,98,99,2000,2001,2004 Free Software Foundation, Inc. + Copyright (C) 2005, Cendio AB. + This file is part of PulseAudio. + Based on work for the GNU C Library. + + PulseAudio is free software; you can redistribute it and/or modify it + under the terms of the GNU Library General Public License as published + by the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with PulseAudio; If not, write to the Free Software + Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, + USA. +***/ + +/* Event types that can be polled for. These bits may be set in `events' + to indicate the interesting event types; they will appear in `revents' + to indicate the status of the file descriptor. */ +#define POLLIN 0x001 /* There is data to read. */ +#define POLLPRI 0x002 /* There is urgent data to read. */ +#define POLLOUT 0x004 /* Writing now will not block. */ + +/* Event types always implicitly polled for. These bits need not be set in + `events', but they will appear in `revents' to indicate the status of + the file descriptor. */ +#define POLLERR 0x008 /* Error condition. */ +#define POLLHUP 0x010 /* Hung up. */ +#define POLLNVAL 0x020 /* Invalid polling request. */ + + +/* Type used for the number of file descriptors. */ +typedef unsigned long int nfds_t; + +/* Data structure describing a polling request. */ +struct pollfd + { + int fd; /* File descriptor to poll. */ + short int events; /* Types of events poller cares about. */ + short int revents; /* Types of events that actually occurred. */ + }; + +/* Poll the file descriptors described by the NFDS structures starting at + FDS. If TIMEOUT is nonzero and not -1, allow TIMEOUT milliseconds for + an event to occur; if TIMEOUT is -1, block until an event occurs. + Returns the number of file descriptors with events, zero if timed out, + or -1 for errors. */ +extern int poll (struct pollfd *__fds, nfds_t __nfds, int __timeout); diff --git a/src/pulsecore/props.c b/src/pulsecore/props.c new file mode 100644 index 00000000..8879b7aa --- /dev/null +++ b/src/pulsecore/props.c @@ -0,0 +1,121 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <assert.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/log.h> + +#include "props.h" + +typedef struct pa_property { + char *name; /* Points to memory allocated by the property subsystem */ + void *data; /* Points to memory maintained by the caller */ +} pa_property; + +/* Allocate a new property object */ +static pa_property* property_new(const char *name, void *data) { + pa_property* p; + assert(name && data); + + p = pa_xmalloc(sizeof(pa_property)); + p->name = pa_xstrdup(name); + p->data = data; + + return p; +} + +/* Free a property object */ +static void property_free(pa_property *p) { + assert(p); + + pa_xfree(p->name); + pa_xfree(p); +} + +void* pa_property_get(pa_core *c, const char *name) { + pa_property *p; + assert(c && name && c->properties); + + if (!(p = pa_hashmap_get(c->properties, name))) + return NULL; + + return p->data; +} + +int pa_property_set(pa_core *c, const char *name, void *data) { + pa_property *p; + assert(c && name && data && c->properties); + + if (pa_hashmap_get(c->properties, name)) + return -1; + + p = property_new(name, data); + pa_hashmap_put(c->properties, p->name, p); + return 0; +} + +int pa_property_remove(pa_core *c, const char *name) { + pa_property *p; + assert(c && name && c->properties); + + if (!(p = pa_hashmap_remove(c->properties, name))) + return -1; + + property_free(p); + return 0; +} + +void pa_property_init(pa_core *c) { + assert(c); + + c->properties = pa_hashmap_new(pa_idxset_string_hash_func, pa_idxset_string_compare_func); +} + +void pa_property_cleanup(pa_core *c) { + assert(c); + + if (!c->properties) + return; + + assert(!pa_hashmap_size(c->properties)); + + pa_hashmap_free(c->properties, NULL, NULL); + c->properties = NULL; + +} + +void pa_property_dump(pa_core *c, pa_strbuf *s) { + void *state = NULL; + pa_property *p; + assert(c && s); + + while ((p = pa_hashmap_iterate(c->properties, &state, NULL))) + pa_strbuf_printf(s, "[%s] -> [%p]\n", p->name, p->data); +} + +int pa_property_replace(pa_core *c, const char *name, void *data) { + assert(c && name); + + pa_property_remove(c, name); + return pa_property_set(c, name, data); +} diff --git a/src/pulsecore/props.h b/src/pulsecore/props.h new file mode 100644 index 00000000..39b7ca68 --- /dev/null +++ b/src/pulsecore/props.h @@ -0,0 +1,58 @@ +#ifndef foopropshfoo +#define foopropshfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> +#include <pulsecore/strbuf.h> + +/* The property subsystem is to be used to share data between + * modules. Consider them to be kind of "global" variables for a + * core. Why not use the hashmap functions directly? The hashmap + * functions copy neither the key nor value, while this property + * system copies the key. Users of this system have to think about + * reference counting themselves. */ + +/* Return a pointer to the value of the specified property. */ +void* pa_property_get(pa_core *c, const char *name); + +/* Set the property 'name' to 'data'. This function fails in case a + * property by this name already exists. The property data is not + * copied or reference counted. This is the caller's job. */ +int pa_property_set(pa_core *c, const char *name, void *data); + +/* Remove the specified property. Return non-zero on failure */ +int pa_property_remove(pa_core *c, const char *name); + +/* A combination of pa_property_remove() and pa_property_set() */ +int pa_property_replace(pa_core *c, const char *name, void *data); + +/* Free all memory used by the property system */ +void pa_property_cleanup(pa_core *c); + +/* Initialize the properties subsystem */ +void pa_property_init(pa_core *c); + +/* Dump the current set of properties */ +void pa_property_dump(pa_core *c, pa_strbuf *s); + +#endif diff --git a/src/pulsecore/protocol-cli.c b/src/pulsecore/protocol-cli.c new file mode 100644 index 00000000..c5854f1e --- /dev/null +++ b/src/pulsecore/protocol-cli.c @@ -0,0 +1,97 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/cli.h> +#include <pulsecore/log.h> + +#include "protocol-cli.h" + +/* Don't allow more than this many concurrent connections */ +#define MAX_CONNECTIONS 25 + +struct pa_protocol_cli { + pa_module *module; + pa_core *core; + pa_socket_server*server; + pa_idxset *connections; +}; + +static void cli_eof_cb(pa_cli*c, void*userdata) { + pa_protocol_cli *p = userdata; + assert(p); + pa_idxset_remove_by_data(p->connections, c, NULL); + pa_cli_free(c); +} + +static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata) { + pa_protocol_cli *p = userdata; + pa_cli *c; + assert(s && io && p); + + if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { + pa_log(__FILE__": Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_iochannel_free(io); + return; + } + + c = pa_cli_new(p->core, io, p->module); + assert(c); + pa_cli_set_eof_callback(c, cli_eof_cb, p); + + pa_idxset_put(p->connections, c, NULL); +} + +pa_protocol_cli* pa_protocol_cli_new(pa_core *core, pa_socket_server *server, pa_module *m, PA_GCC_UNUSED pa_modargs *ma) { + pa_protocol_cli* p; + assert(core && server); + + p = pa_xmalloc(sizeof(pa_protocol_cli)); + p->module = m; + p->core = core; + p->server = server; + p->connections = pa_idxset_new(NULL, NULL); + + pa_socket_server_set_callback(p->server, on_connection, p); + + return p; +} + +static void free_connection(void *p, PA_GCC_UNUSED void *userdata) { + assert(p); + pa_cli_free(p); +} + +void pa_protocol_cli_free(pa_protocol_cli *p) { + assert(p); + + pa_idxset_free(p->connections, free_connection, NULL); + pa_socket_server_unref(p->server); + pa_xfree(p); +} diff --git a/src/pulsecore/protocol-cli.h b/src/pulsecore/protocol-cli.h new file mode 100644 index 00000000..84101e14 --- /dev/null +++ b/src/pulsecore/protocol-cli.h @@ -0,0 +1,35 @@ +#ifndef fooprotocolclihfoo +#define fooprotocolclihfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> +#include <pulsecore/socket-server.h> +#include <pulsecore/module.h> +#include <pulsecore/modargs.h> + +typedef struct pa_protocol_cli pa_protocol_cli; + +pa_protocol_cli* pa_protocol_cli_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma); +void pa_protocol_cli_free(pa_protocol_cli *n); + +#endif diff --git a/src/pulsecore/protocol-esound.c b/src/pulsecore/protocol-esound.c new file mode 100644 index 00000000..6b9112bf --- /dev/null +++ b/src/pulsecore/protocol-esound.c @@ -0,0 +1,1253 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <errno.h> +#include <string.h> +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <limits.h> + +#include <pulse/sample.h> +#include <pulse/timeval.h> +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/esound.h> +#include <pulsecore/memblock.h> +#include <pulsecore/client.h> +#include <pulsecore/sink-input.h> +#include <pulsecore/sink.h> +#include <pulsecore/source-output.h> +#include <pulsecore/source.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/authkey.h> +#include <pulsecore/namereg.h> +#include <pulsecore/log.h> +#include <pulsecore/core-util.h> +#include <pulsecore/core-error.h> + +#include "endianmacros.h" + +#include "protocol-esound.h" + +/* Don't accept more connection than this */ +#define MAX_CONNECTIONS 10 + +/* Kick a client if it doesn't authenticate within this time */ +#define AUTH_TIMEOUT 5 + +#define DEFAULT_COOKIE_FILE ".esd_auth" + +#define PLAYBACK_BUFFER_SECONDS (.25) +#define PLAYBACK_BUFFER_FRAGMENTS (10) +#define RECORD_BUFFER_SECONDS (5) +#define RECORD_BUFFER_FRAGMENTS (100) + +#define MAX_CACHE_SAMPLE_SIZE (1024000) + +#define SCACHE_PREFIX "esound." + +/* This is heavily based on esound's code */ + +struct connection { + uint32_t index; + int dead; + pa_protocol_esound *protocol; + pa_iochannel *io; + pa_client *client; + int authorized, swap_byte_order; + void *write_data; + size_t write_data_alloc, write_data_index, write_data_length; + void *read_data; + size_t read_data_alloc, read_data_length; + esd_proto_t request; + esd_client_state_t state; + pa_sink_input *sink_input; + pa_source_output *source_output; + pa_memblockq *input_memblockq, *output_memblockq; + pa_defer_event *defer_event; + + char *original_name; + + struct { + pa_memblock *current_memblock; + size_t memblock_index, fragment_size; + } playback; + + struct { + pa_memchunk memchunk; + char *name; + pa_sample_spec sample_spec; + } scache; + + pa_time_event *auth_timeout_event; +}; + +struct pa_protocol_esound { + int public; + pa_module *module; + pa_core *core; + pa_socket_server *server; + pa_idxset *connections; + char *sink_name, *source_name; + unsigned n_player; + uint8_t esd_key[ESD_KEY_LEN]; +}; + +typedef struct proto_handler { + size_t data_length; + int (*proc)(struct connection *c, esd_proto_t request, const void *data, size_t length); + const char *description; +} esd_proto_handler_info_t; + +static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length); +static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk); +static void sink_input_kill_cb(pa_sink_input *i); +static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i); +static pa_usec_t source_output_get_latency_cb(pa_source_output *o); + +static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk); +static void source_output_kill_cb(pa_source_output *o); + +static int esd_proto_connect(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_stream_play(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_stream_record(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_get_latency(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_server_info(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_all_info(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_stream_pan(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_sample_cache(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_sample_free_or_play(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_sample_get_id(struct connection *c, esd_proto_t request, const void *data, size_t length); +static int esd_proto_standby_or_resume(struct connection *c, esd_proto_t request, const void *data, size_t length); + +/* the big map of protocol handler info */ +static struct proto_handler proto_map[ESD_PROTO_MAX] = { + { ESD_KEY_LEN + sizeof(int), esd_proto_connect, "connect" }, + { ESD_KEY_LEN + sizeof(int), NULL, "lock" }, + { ESD_KEY_LEN + sizeof(int), NULL, "unlock" }, + + { ESD_NAME_MAX + 2 * sizeof(int), esd_proto_stream_play, "stream play" }, + { ESD_NAME_MAX + 2 * sizeof(int), esd_proto_stream_record, "stream rec" }, + { ESD_NAME_MAX + 2 * sizeof(int), esd_proto_stream_record, "stream mon" }, + + { ESD_NAME_MAX + 3 * sizeof(int), esd_proto_sample_cache, "sample cache" }, /* 6 */ + { sizeof(int), esd_proto_sample_free_or_play, "sample free" }, + { sizeof(int), esd_proto_sample_free_or_play, "sample play" }, /* 8 */ + { sizeof(int), NULL, "sample loop" }, + { sizeof(int), NULL, "sample stop" }, + { -1, NULL, "TODO: sample kill" }, + + { ESD_KEY_LEN + sizeof(int), esd_proto_standby_or_resume, "standby" }, /* NOOP! */ + { ESD_KEY_LEN + sizeof(int), esd_proto_standby_or_resume, "resume" }, /* NOOP! */ /* 13 */ + + { ESD_NAME_MAX, esd_proto_sample_get_id, "sample getid" }, /* 14 */ + { ESD_NAME_MAX + 2 * sizeof(int), NULL, "stream filter" }, + + { sizeof(int), esd_proto_server_info, "server info" }, + { sizeof(int), esd_proto_all_info, "all info" }, + { -1, NULL, "TODO: subscribe" }, + { -1, NULL, "TODO: unsubscribe" }, + + { 3 * sizeof(int), esd_proto_stream_pan, "stream pan"}, + { 3 * sizeof(int), NULL, "sample pan" }, + + { sizeof(int), NULL, "standby mode" }, + { 0, esd_proto_get_latency, "get latency" } +}; + +static void connection_free(struct connection *c) { + assert(c); + pa_idxset_remove_by_data(c->protocol->connections, c, NULL); + + if (c->state == ESD_STREAMING_DATA) + c->protocol->n_player--; + + pa_client_free(c->client); + + if (c->sink_input) { + pa_sink_input_disconnect(c->sink_input); + pa_sink_input_unref(c->sink_input); + } + + if (c->source_output) { + pa_source_output_disconnect(c->source_output); + pa_source_output_unref(c->source_output); + } + + if (c->input_memblockq) + pa_memblockq_free(c->input_memblockq); + if (c->output_memblockq) + pa_memblockq_free(c->output_memblockq); + + if (c->playback.current_memblock) + pa_memblock_unref(c->playback.current_memblock); + + pa_xfree(c->read_data); + pa_xfree(c->write_data); + + if (c->io) + pa_iochannel_free(c->io); + + if (c->defer_event) + c->protocol->core->mainloop->defer_free(c->defer_event); + + if (c->scache.memchunk.memblock) + pa_memblock_unref(c->scache.memchunk.memblock); + pa_xfree(c->scache.name); + + if (c->auth_timeout_event) + c->protocol->core->mainloop->time_free(c->auth_timeout_event); + + pa_xfree(c->original_name); + pa_xfree(c); +} + +static void connection_write_prepare(struct connection *c, size_t length) { + size_t t; + assert(c); + + t = c->write_data_length+length; + + if (c->write_data_alloc < t) + c->write_data = pa_xrealloc(c->write_data, c->write_data_alloc = t); + + assert(c->write_data); +} + +static void connection_write(struct connection *c, const void *data, size_t length) { + size_t i; + assert(c); + + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); + c->protocol->core->mainloop->defer_enable(c->defer_event, 1); + + connection_write_prepare(c, length); + + assert(c->write_data); + + i = c->write_data_length; + c->write_data_length += length; + + memcpy((char*)c->write_data + i, data, length); +} + +static void format_esd2native(int format, int swap_bytes, pa_sample_spec *ss) { + assert(ss); + + ss->channels = ((format & ESD_MASK_CHAN) == ESD_STEREO) ? 2 : 1; + if ((format & ESD_MASK_BITS) == ESD_BITS16) + ss->format = swap_bytes ? PA_SAMPLE_S16RE : PA_SAMPLE_S16NE; + else + ss->format = PA_SAMPLE_U8; +} + +static int format_native2esd(pa_sample_spec *ss) { + int format = 0; + + format = (ss->format == PA_SAMPLE_U8) ? ESD_BITS8 : ESD_BITS16; + format |= (ss->channels >= 2) ? ESD_STEREO : ESD_MONO; + + return format; +} + +#define CHECK_VALIDITY(expression, string) do { \ + if (!(expression)) { \ + pa_log_warn(__FILE__ ": " string); \ + return -1; \ + } \ +} while(0); + +/*** esound commands ***/ + +static int esd_proto_connect(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { + uint32_t ekey; + int ok; + + assert(length == (ESD_KEY_LEN + sizeof(uint32_t))); + + if (!c->authorized) { + if (memcmp(data, c->protocol->esd_key, ESD_KEY_LEN) != 0) { + pa_log(__FILE__": kicked client with invalid authorization key."); + return -1; + } + + c->authorized = 1; + if (c->auth_timeout_event) { + c->protocol->core->mainloop->time_free(c->auth_timeout_event); + c->auth_timeout_event = NULL; + } + } + + data = (const char*)data + ESD_KEY_LEN; + + memcpy(&ekey, data, sizeof(uint32_t)); + if (ekey == ESD_ENDIAN_KEY) + c->swap_byte_order = 0; + else if (ekey == ESD_SWAP_ENDIAN_KEY) + c->swap_byte_order = 1; + else { + pa_log(__FILE__": client sent invalid endian key"); + return -1; + } + + ok = 1; + connection_write(c, &ok, sizeof(int)); + return 0; +} + +static int esd_proto_stream_play(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { + char name[ESD_NAME_MAX], *utf8_name; + int32_t format, rate; + pa_sink *sink; + pa_sample_spec ss; + size_t l; + + assert(c && length == (sizeof(int32_t)*2+ESD_NAME_MAX)); + + memcpy(&format, data, sizeof(int32_t)); + format = MAYBE_INT32_SWAP(c->swap_byte_order, format); + data = (const char*)data + sizeof(int32_t); + + memcpy(&rate, data, sizeof(int32_t)); + rate = MAYBE_INT32_SWAP(c->swap_byte_order, rate); + data = (const char*)data + sizeof(int32_t); + + ss.rate = rate; + format_esd2native(format, c->swap_byte_order, &ss); + + CHECK_VALIDITY(pa_sample_spec_valid(&ss), "Invalid sample specification"); + sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1); + CHECK_VALIDITY(sink, "No such sink"); + + strncpy(name, data, sizeof(name)); + name[sizeof(name)-1] = 0; + utf8_name = pa_utf8_filter(name); + + pa_client_set_name(c->client, utf8_name); + c->original_name = pa_xstrdup(name); + + assert(!c->sink_input && !c->input_memblockq); + + c->sink_input = pa_sink_input_new(sink, __FILE__, utf8_name, &ss, NULL, NULL, 0, -1); + + pa_xfree(utf8_name); + + CHECK_VALIDITY(c->sink_input, "Failed to create sink input."); + + l = (size_t) (pa_bytes_per_second(&ss)*PLAYBACK_BUFFER_SECONDS); + c->input_memblockq = pa_memblockq_new( + 0, + l, + 0, + pa_frame_size(&ss), + (size_t) -1, + l/PLAYBACK_BUFFER_FRAGMENTS, + NULL, + c->protocol->core->memblock_stat); + pa_iochannel_socket_set_rcvbuf(c->io, l/PLAYBACK_BUFFER_FRAGMENTS*2); + c->playback.fragment_size = l/10; + + c->sink_input->owner = c->protocol->module; + c->sink_input->client = c->client; + c->sink_input->peek = sink_input_peek_cb; + c->sink_input->drop = sink_input_drop_cb; + c->sink_input->kill = sink_input_kill_cb; + c->sink_input->get_latency = sink_input_get_latency_cb; + c->sink_input->userdata = c; + + c->state = ESD_STREAMING_DATA; + + c->protocol->n_player++; + + return 0; +} + +static int esd_proto_stream_record(struct connection *c, esd_proto_t request, const void *data, size_t length) { + char name[ESD_NAME_MAX], *utf8_name; + int32_t format, rate; + pa_source *source; + pa_sample_spec ss; + size_t l; + + assert(c && length == (sizeof(int32_t)*2+ESD_NAME_MAX)); + + memcpy(&format, data, sizeof(int32_t)); + format = MAYBE_INT32_SWAP(c->swap_byte_order, format); + data = (const char*)data + sizeof(int32_t); + + memcpy(&rate, data, sizeof(int32_t)); + rate = MAYBE_INT32_SWAP(c->swap_byte_order, rate); + data = (const char*)data + sizeof(int32_t); + + ss.rate = rate; + format_esd2native(format, c->swap_byte_order, &ss); + + CHECK_VALIDITY(pa_sample_spec_valid(&ss), "Invalid sample specification."); + + if (request == ESD_PROTO_STREAM_MON) { + pa_sink* sink; + + if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) { + pa_log(__FILE__": no such sink."); + return -1; + } + + if (!(source = sink->monitor_source)) { + pa_log(__FILE__": no such monitor source."); + return -1; + } + } else { + assert(request == ESD_PROTO_STREAM_REC); + + if (!(source = pa_namereg_get(c->protocol->core, c->protocol->source_name, PA_NAMEREG_SOURCE, 1))) { + pa_log(__FILE__": no such source."); + return -1; + } + } + + strncpy(name, data, sizeof(name)); + name[sizeof(name)-1] = 0; + + utf8_name = pa_utf8_filter(name); + pa_client_set_name(c->client, utf8_name); + pa_xfree(utf8_name); + + c->original_name = pa_xstrdup(name); + + assert(!c->output_memblockq && !c->source_output); + + if (!(c->source_output = pa_source_output_new(source, __FILE__, c->client->name, &ss, NULL, -1))) { + pa_log(__FILE__": failed to create source output"); + return -1; + } + + l = (size_t) (pa_bytes_per_second(&ss)*RECORD_BUFFER_SECONDS); + c->output_memblockq = pa_memblockq_new( + 0, + l, + 0, + pa_frame_size(&ss), + 1, + 0, + NULL, + c->protocol->core->memblock_stat); + pa_iochannel_socket_set_sndbuf(c->io, l/RECORD_BUFFER_FRAGMENTS*2); + + c->source_output->owner = c->protocol->module; + c->source_output->client = c->client; + c->source_output->push = source_output_push_cb; + c->source_output->kill = source_output_kill_cb; + c->source_output->get_latency = source_output_get_latency_cb; + c->source_output->userdata = c; + + c->state = ESD_STREAMING_DATA; + + c->protocol->n_player++; + + return 0; +} + +static int esd_proto_get_latency(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { + pa_sink *sink; + int32_t latency; + + assert(c && !data && length == 0); + + if (!(sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) + latency = 0; + else { + double usec = pa_sink_get_latency(sink); + latency = (int) ((usec*44100)/1000000); + } + + latency = MAYBE_INT32_SWAP(c->swap_byte_order, latency); + connection_write(c, &latency, sizeof(int32_t)); + return 0; +} + +static int esd_proto_server_info(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { + int32_t rate = 44100, format = ESD_STEREO|ESD_BITS16; + int32_t response; + pa_sink *sink; + + assert(c && data && length == sizeof(int32_t)); + + if ((sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) { + rate = sink->sample_spec.rate; + format = format_native2esd(&sink->sample_spec); + } + + connection_write_prepare(c, sizeof(int32_t) * 3); + + response = 0; + connection_write(c, &response, sizeof(int32_t)); + rate = MAYBE_INT32_SWAP(c->swap_byte_order, rate); + connection_write(c, &rate, sizeof(int32_t)); + format = MAYBE_INT32_SWAP(c->swap_byte_order, format); + connection_write(c, &format, sizeof(int32_t)); + + return 0; +} + +static int esd_proto_all_info(struct connection *c, esd_proto_t request, const void *data, size_t length) { + size_t t, k, s; + struct connection *conn; + uint32_t idx = PA_IDXSET_INVALID; + unsigned nsamples; + char terminator[sizeof(int32_t)*6+ESD_NAME_MAX]; + + assert(c && data && length == sizeof(int32_t)); + + if (esd_proto_server_info(c, request, data, length) < 0) + return -1; + + k = sizeof(int32_t)*5+ESD_NAME_MAX; + s = sizeof(int32_t)*6+ESD_NAME_MAX; + nsamples = c->protocol->core->scache ? pa_idxset_size(c->protocol->core->scache) : 0; + t = s*(nsamples+1) + k*(c->protocol->n_player+1); + + connection_write_prepare(c, t); + + memset(terminator, 0, sizeof(terminator)); + + for (conn = pa_idxset_first(c->protocol->connections, &idx); conn; conn = pa_idxset_next(c->protocol->connections, &idx)) { + int32_t id, format = ESD_BITS16 | ESD_STEREO, rate = 44100, lvolume = ESD_VOLUME_BASE, rvolume = ESD_VOLUME_BASE; + char name[ESD_NAME_MAX]; + + if (conn->state != ESD_STREAMING_DATA) + continue; + + assert(t >= k*2+s); + + if (conn->sink_input) { + pa_cvolume volume = *pa_sink_input_get_volume(conn->sink_input); + rate = conn->sink_input->sample_spec.rate; + lvolume = (volume.values[0]*ESD_VOLUME_BASE)/PA_VOLUME_NORM; + rvolume = (volume.values[1]*ESD_VOLUME_BASE)/PA_VOLUME_NORM; + format = format_native2esd(&conn->sink_input->sample_spec); + } + + /* id */ + id = MAYBE_INT32_SWAP(c->swap_byte_order, (int32_t) (conn->index+1)); + connection_write(c, &id, sizeof(int32_t)); + + /* name */ + memset(name, 0, ESD_NAME_MAX); /* don't leak old data */ + if (conn->original_name) + strncpy(name, conn->original_name, ESD_NAME_MAX); + else if (conn->client && conn->client->name) + strncpy(name, conn->client->name, ESD_NAME_MAX); + connection_write(c, name, ESD_NAME_MAX); + + /* rate */ + rate = MAYBE_INT32_SWAP(c->swap_byte_order, rate); + connection_write(c, &rate, sizeof(int32_t)); + + /* left */ + lvolume = MAYBE_INT32_SWAP(c->swap_byte_order, lvolume); + connection_write(c, &lvolume, sizeof(int32_t)); + + /*right*/ + rvolume = MAYBE_INT32_SWAP(c->swap_byte_order, rvolume); + connection_write(c, &rvolume, sizeof(int32_t)); + + /*format*/ + format = MAYBE_INT32_SWAP(c->swap_byte_order, format); + connection_write(c, &format, sizeof(int32_t)); + + t -= k; + } + + assert(t == s*(nsamples+1)+k); + t -= k; + + connection_write(c, terminator, k); + + if (nsamples) { + pa_scache_entry *ce; + + idx = PA_IDXSET_INVALID; + for (ce = pa_idxset_first(c->protocol->core->scache, &idx); ce; ce = pa_idxset_next(c->protocol->core->scache, &idx)) { + int32_t id, rate, lvolume, rvolume, format, len; + char name[ESD_NAME_MAX]; + + assert(t >= s*2); + + /* id */ + id = MAYBE_INT32_SWAP(c->swap_byte_order, (int) (ce->index+1)); + connection_write(c, &id, sizeof(int32_t)); + + /* name */ + memset(name, 0, ESD_NAME_MAX); /* don't leak old data */ + if (strncmp(ce->name, SCACHE_PREFIX, sizeof(SCACHE_PREFIX)-1) == 0) + strncpy(name, ce->name+sizeof(SCACHE_PREFIX)-1, ESD_NAME_MAX); + else + snprintf(name, ESD_NAME_MAX, "native.%s", ce->name); + connection_write(c, name, ESD_NAME_MAX); + + /* rate */ + rate = MAYBE_UINT32_SWAP(c->swap_byte_order, ce->sample_spec.rate); + connection_write(c, &rate, sizeof(int32_t)); + + /* left */ + lvolume = MAYBE_UINT32_SWAP(c->swap_byte_order, (ce->volume.values[0]*ESD_VOLUME_BASE)/PA_VOLUME_NORM); + connection_write(c, &lvolume, sizeof(int32_t)); + + /*right*/ + rvolume = MAYBE_UINT32_SWAP(c->swap_byte_order, (ce->volume.values[0]*ESD_VOLUME_BASE)/PA_VOLUME_NORM); + connection_write(c, &rvolume, sizeof(int32_t)); + + /*format*/ + format = MAYBE_INT32_SWAP(c->swap_byte_order, format_native2esd(&ce->sample_spec)); + connection_write(c, &format, sizeof(int32_t)); + + /*length*/ + len = MAYBE_INT32_SWAP(c->swap_byte_order, (int) ce->memchunk.length); + connection_write(c, &len, sizeof(int32_t)); + + t -= s; + } + } + + assert(t == s); + + connection_write(c, terminator, s); + + return 0; +} + +static int esd_proto_stream_pan(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { + int32_t ok; + uint32_t idx, lvolume, rvolume; + struct connection *conn; + + assert(c && data && length == sizeof(int32_t)*3); + + memcpy(&idx, data, sizeof(uint32_t)); + idx = MAYBE_UINT32_SWAP(c->swap_byte_order, idx) - 1; + data = (const char*)data + sizeof(uint32_t); + + memcpy(&lvolume, data, sizeof(uint32_t)); + lvolume = MAYBE_UINT32_SWAP(c->swap_byte_order, lvolume); + data = (const char*)data + sizeof(uint32_t); + + memcpy(&rvolume, data, sizeof(uint32_t)); + rvolume = MAYBE_UINT32_SWAP(c->swap_byte_order, rvolume); + data = (const char*)data + sizeof(uint32_t); + + if ((conn = pa_idxset_get_by_index(c->protocol->connections, idx)) && conn->sink_input) { + pa_cvolume volume; + volume.values[0] = (lvolume*PA_VOLUME_NORM)/ESD_VOLUME_BASE; + volume.values[1] = (rvolume*PA_VOLUME_NORM)/ESD_VOLUME_BASE; + volume.channels = 2; + pa_sink_input_set_volume(conn->sink_input, &volume); + ok = 1; + } else + ok = 0; + + connection_write(c, &ok, sizeof(int32_t)); + + return 0; +} + +static int esd_proto_sample_cache(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { + pa_sample_spec ss; + int32_t format, rate, sc_length; + uint32_t idx; + char name[ESD_NAME_MAX+sizeof(SCACHE_PREFIX)-1]; + + assert(c && data && length == (ESD_NAME_MAX+3*sizeof(int32_t))); + + memcpy(&format, data, sizeof(int32_t)); + format = MAYBE_INT32_SWAP(c->swap_byte_order, format); + data = (const char*)data + sizeof(int32_t); + + memcpy(&rate, data, sizeof(int32_t)); + rate = MAYBE_INT32_SWAP(c->swap_byte_order, rate); + data = (const char*)data + sizeof(int32_t); + + ss.rate = rate; + format_esd2native(format, c->swap_byte_order, &ss); + + CHECK_VALIDITY(pa_sample_spec_valid(&ss), "Invalid sample specification."); + + memcpy(&sc_length, data, sizeof(int32_t)); + sc_length = MAYBE_INT32_SWAP(c->swap_byte_order, sc_length); + data = (const char*)data + sizeof(int32_t); + + CHECK_VALIDITY(sc_length <= MAX_CACHE_SAMPLE_SIZE, "Sample too large."); + + strcpy(name, SCACHE_PREFIX); + strncpy(name+sizeof(SCACHE_PREFIX)-1, data, ESD_NAME_MAX); + name[sizeof(name)-1] = 0; + + CHECK_VALIDITY(pa_utf8_valid(name), "Invalid UTF8 in sample name."); + + assert(!c->scache.memchunk.memblock); + c->scache.memchunk.memblock = pa_memblock_new(sc_length, c->protocol->core->memblock_stat); + c->scache.memchunk.index = 0; + c->scache.memchunk.length = sc_length; + c->scache.sample_spec = ss; + assert(!c->scache.name); + c->scache.name = pa_xstrdup(name); + + c->state = ESD_CACHING_SAMPLE; + + pa_scache_add_item(c->protocol->core, c->scache.name, NULL, NULL, NULL, &idx); + + idx += 1; + connection_write(c, &idx, sizeof(uint32_t)); + + return 0; +} + +static int esd_proto_sample_get_id(struct connection *c, PA_GCC_UNUSED esd_proto_t request, const void *data, size_t length) { + int32_t ok; + uint32_t idx; + char name[ESD_NAME_MAX+sizeof(SCACHE_PREFIX)-1]; + + assert(c && data && length == ESD_NAME_MAX); + + strcpy(name, SCACHE_PREFIX); + strncpy(name+sizeof(SCACHE_PREFIX)-1, data, ESD_NAME_MAX); + name[sizeof(name)-1] = 0; + + CHECK_VALIDITY(pa_utf8_valid(name), "Invalid UTF8 in sample name."); + + ok = -1; + if ((idx = pa_scache_get_id_by_name(c->protocol->core, name)) != PA_IDXSET_INVALID) + ok = idx + 1; + + connection_write(c, &ok, sizeof(int32_t)); + + return 0; +} + +static int esd_proto_sample_free_or_play(struct connection *c, esd_proto_t request, const void *data, size_t length) { + int32_t ok; + const char *name; + uint32_t idx; + + assert(c && data && length == sizeof(int32_t)); + + memcpy(&idx, data, sizeof(uint32_t)); + idx = MAYBE_UINT32_SWAP(c->swap_byte_order, idx) - 1; + + ok = 0; + + if ((name = pa_scache_get_name_by_id(c->protocol->core, idx))) { + if (request == ESD_PROTO_SAMPLE_PLAY) { + pa_sink *sink; + + if ((sink = pa_namereg_get(c->protocol->core, c->protocol->sink_name, PA_NAMEREG_SINK, 1))) + if (pa_scache_play_item(c->protocol->core, name, sink, PA_VOLUME_NORM) >= 0) + ok = idx + 1; + } else { + assert(request == ESD_PROTO_SAMPLE_FREE); + + if (pa_scache_remove_item(c->protocol->core, name) >= 0) + ok = idx + 1; + } + } + + connection_write(c, &ok, sizeof(int32_t)); + + return 0; +} + +static int esd_proto_standby_or_resume(struct connection *c, PA_GCC_UNUSED esd_proto_t request, PA_GCC_UNUSED const void *data, PA_GCC_UNUSED size_t length) { + int32_t ok; + + connection_write_prepare(c, sizeof(int32_t) * 2); + + ok = 1; + connection_write(c, &ok, sizeof(int32_t)); + connection_write(c, &ok, sizeof(int32_t)); + + return 0; +} + +/*** client callbacks ***/ + +static void client_kill_cb(pa_client *c) { + assert(c && c->userdata); + connection_free(c->userdata); +} + +/*** pa_iochannel callbacks ***/ + +static int do_read(struct connection *c) { + assert(c && c->io); + +/* pa_log("READ"); */ + + if (c->state == ESD_NEXT_REQUEST) { + ssize_t r; + assert(c->read_data_length < sizeof(c->request)); + + if ((r = pa_iochannel_read(c->io, ((uint8_t*) &c->request) + c->read_data_length, sizeof(c->request) - c->read_data_length)) <= 0) { + pa_log_debug(__FILE__": read(): %s", r < 0 ? pa_cstrerror(errno) : "EOF"); + return -1; + } + + if ((c->read_data_length+= r) >= sizeof(c->request)) { + struct proto_handler *handler; + + c->request = MAYBE_INT32_SWAP(c->swap_byte_order, c->request); + + if (c->request < ESD_PROTO_CONNECT || c->request > ESD_PROTO_MAX) { + pa_log(__FILE__": recieved invalid request."); + return -1; + } + + handler = proto_map+c->request; + +/* pa_log(__FILE__": executing request #%u", c->request); */ + + if (!handler->proc) { + pa_log(__FILE__": recieved unimplemented request #%u.", c->request); + return -1; + } + + if (handler->data_length == 0) { + c->read_data_length = 0; + + if (handler->proc(c, c->request, NULL, 0) < 0) + return -1; + + } else { + if (c->read_data_alloc < handler->data_length) + c->read_data = pa_xrealloc(c->read_data, c->read_data_alloc = handler->data_length); + assert(c->read_data); + + c->state = ESD_NEEDS_REQDATA; + c->read_data_length = 0; + } + } + + } else if (c->state == ESD_NEEDS_REQDATA) { + ssize_t r; + struct proto_handler *handler = proto_map+c->request; + + assert(handler->proc); + + assert(c->read_data && c->read_data_length < handler->data_length); + + if ((r = pa_iochannel_read(c->io, (uint8_t*) c->read_data + c->read_data_length, handler->data_length - c->read_data_length)) <= 0) { + pa_log_debug(__FILE__": read(): %s", r < 0 ? pa_cstrerror(errno) : "EOF"); + return -1; + } + + if ((c->read_data_length += r) >= handler->data_length) { + size_t l = c->read_data_length; + assert(handler->proc); + + c->state = ESD_NEXT_REQUEST; + c->read_data_length = 0; + + if (handler->proc(c, c->request, c->read_data, l) < 0) + return -1; + } + } else if (c->state == ESD_CACHING_SAMPLE) { + ssize_t r; + + assert(c->scache.memchunk.memblock && c->scache.name && c->scache.memchunk.index < c->scache.memchunk.length); + + if ((r = pa_iochannel_read(c->io, (uint8_t*) c->scache.memchunk.memblock->data+c->scache.memchunk.index, c->scache.memchunk.length-c->scache.memchunk.index)) <= 0) { + pa_log_debug(__FILE__": read(): %s", r < 0 ? pa_cstrerror(errno) : "EOF"); + return -1; + } + + c->scache.memchunk.index += r; + assert(c->scache.memchunk.index <= c->scache.memchunk.length); + + if (c->scache.memchunk.index == c->scache.memchunk.length) { + uint32_t idx; + + c->scache.memchunk.index = 0; + pa_scache_add_item(c->protocol->core, c->scache.name, &c->scache.sample_spec, NULL, &c->scache.memchunk, &idx); + + pa_memblock_unref(c->scache.memchunk.memblock); + c->scache.memchunk.memblock = NULL; + c->scache.memchunk.index = c->scache.memchunk.length = 0; + + pa_xfree(c->scache.name); + c->scache.name = NULL; + + c->state = ESD_NEXT_REQUEST; + + idx += 1; + connection_write(c, &idx, sizeof(uint32_t)); + } + + } else if (c->state == ESD_STREAMING_DATA && c->sink_input) { + pa_memchunk chunk; + ssize_t r; + size_t l; + + assert(c->input_memblockq); + +/* pa_log("STREAMING_DATA"); */ + + if (!(l = pa_memblockq_missing(c->input_memblockq))) + return 0; + + if (l > c->playback.fragment_size) + l = c->playback.fragment_size; + + if (c->playback.current_memblock) + if (c->playback.current_memblock->length - c->playback.memblock_index < l) { + pa_memblock_unref(c->playback.current_memblock); + c->playback.current_memblock = NULL; + c->playback.memblock_index = 0; + } + + if (!c->playback.current_memblock) { + c->playback.current_memblock = pa_memblock_new(c->playback.fragment_size*2, c->protocol->core->memblock_stat); + assert(c->playback.current_memblock && c->playback.current_memblock->length >= l); + c->playback.memblock_index = 0; + } + + if ((r = pa_iochannel_read(c->io, (uint8_t*) c->playback.current_memblock->data+c->playback.memblock_index, l)) <= 0) { + pa_log_debug(__FILE__": read(): %s", r < 0 ? pa_cstrerror(errno) : "EOF"); + return -1; + } + + chunk.memblock = c->playback.current_memblock; + chunk.index = c->playback.memblock_index; + chunk.length = r; + assert(chunk.memblock); + + c->playback.memblock_index += r; + + assert(c->input_memblockq); + pa_memblockq_push_align(c->input_memblockq, &chunk); + assert(c->sink_input); + pa_sink_notify(c->sink_input->sink); + } + + return 0; +} + +static int do_write(struct connection *c) { + assert(c && c->io); + +/* pa_log("WRITE"); */ + + if (c->write_data_length) { + ssize_t r; + + assert(c->write_data_index < c->write_data_length); + if ((r = pa_iochannel_write(c->io, (uint8_t*) c->write_data+c->write_data_index, c->write_data_length-c->write_data_index)) < 0) { + pa_log(__FILE__": write(): %s", pa_cstrerror(errno)); + return -1; + } + + if ((c->write_data_index +=r) >= c->write_data_length) + c->write_data_length = c->write_data_index = 0; + + } else if (c->state == ESD_STREAMING_DATA && c->source_output) { + pa_memchunk chunk; + ssize_t r; + + assert(c->output_memblockq); + if (pa_memblockq_peek(c->output_memblockq, &chunk) < 0) + return 0; + + assert(chunk.memblock && chunk.length); + + if ((r = pa_iochannel_write(c->io, (uint8_t*) chunk.memblock->data+chunk.index, chunk.length)) < 0) { + pa_memblock_unref(chunk.memblock); + pa_log(__FILE__": write(): %s", pa_cstrerror(errno)); + return -1; + } + + pa_memblockq_drop(c->output_memblockq, &chunk, r); + pa_memblock_unref(chunk.memblock); + + pa_source_notify(c->source_output->source); + } + + return 0; +} + +static void do_work(struct connection *c) { + assert(c); + + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); + c->protocol->core->mainloop->defer_enable(c->defer_event, 0); + + if (c->dead) + return; + + if (pa_iochannel_is_readable(c->io)) { + if (do_read(c) < 0) + goto fail; + } + + if (c->state == ESD_STREAMING_DATA && c->source_output && pa_iochannel_is_hungup(c->io)) + /* In case we are in capture mode we will never call read() + * on the socket, hence we need to detect the hangup manually + * here, instead of simply waiting for read() to return 0. */ + goto fail; + + if (pa_iochannel_is_writable(c->io)) + if (do_write(c) < 0) + goto fail; + + return; + +fail: + + if (c->state == ESD_STREAMING_DATA && c->sink_input) { + c->dead = 1; + + pa_iochannel_free(c->io); + c->io = NULL; + + pa_memblockq_prebuf_disable(c->input_memblockq); + pa_sink_notify(c->sink_input->sink); + } else + connection_free(c); +} + +static void io_callback(pa_iochannel*io, void *userdata) { + struct connection *c = userdata; + assert(io && c && c->io == io); + + do_work(c); +} + +/*** defer callback ***/ + +static void defer_callback(pa_mainloop_api*a, pa_defer_event *e, void *userdata) { + struct connection *c = userdata; + assert(a && c && c->defer_event == e); + +/* pa_log("DEFER"); */ + + do_work(c); +} + +/*** sink_input callbacks ***/ + +static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) { + struct connection*c; + assert(i && i->userdata && chunk); + c = i->userdata; + + if (pa_memblockq_peek(c->input_memblockq, chunk) < 0) { + + if (c->dead) + connection_free(c); + + return -1; + } + + return 0; +} + +static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) { + struct connection*c = i->userdata; + assert(i && c && length); + +/* pa_log("DROP"); */ + + pa_memblockq_drop(c->input_memblockq, chunk, length); + + /* do something */ + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); + + if (!c->dead) + c->protocol->core->mainloop->defer_enable(c->defer_event, 1); + +/* assert(pa_memblockq_get_length(c->input_memblockq) > 2048); */ +} + +static void sink_input_kill_cb(pa_sink_input *i) { + assert(i && i->userdata); + connection_free((struct connection *) i->userdata); +} + +static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) { + struct connection*c = i->userdata; + assert(i && c); + return pa_bytes_to_usec(pa_memblockq_get_length(c->input_memblockq), &c->sink_input->sample_spec); +} + +/*** source_output callbacks ***/ + +static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) { + struct connection *c = o->userdata; + assert(o && c && chunk); + + pa_memblockq_push(c->output_memblockq, chunk); + + /* do something */ + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); + + if (!c->dead) + c->protocol->core->mainloop->defer_enable(c->defer_event, 1); +} + +static void source_output_kill_cb(pa_source_output *o) { + assert(o && o->userdata); + connection_free((struct connection *) o->userdata); +} + +static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { + struct connection*c = o->userdata; + assert(o && c); + return pa_bytes_to_usec(pa_memblockq_get_length(c->output_memblockq), &c->source_output->sample_spec); +} + +/*** socket server callback ***/ + +static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { + struct connection *c = userdata; + assert(m && tv && c && c->auth_timeout_event == e); + + if (!c->authorized) + connection_free(c); +} + +static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata) { + struct connection *c; + pa_protocol_esound *p = userdata; + char cname[256], pname[128]; + assert(s && io && p); + + if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { + pa_log(__FILE__": Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_iochannel_free(io); + return; + } + + c = pa_xnew(struct connection, 1); + c->protocol = p; + c->io = io; + pa_iochannel_set_callback(c->io, io_callback, c); + + pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname)); + snprintf(cname, sizeof(cname), "EsounD client (%s)", pname); + assert(p->core); + c->client = pa_client_new(p->core, __FILE__, cname); + assert(c->client); + c->client->owner = p->module; + c->client->kill = client_kill_cb; + c->client->userdata = c; + + c->authorized = p->public; + c->swap_byte_order = 0; + c->dead = 0; + + c->read_data_length = 0; + c->read_data = pa_xmalloc(c->read_data_alloc = proto_map[ESD_PROTO_CONNECT].data_length); + + c->write_data_length = c->write_data_index = c->write_data_alloc = 0; + c->write_data = NULL; + + c->state = ESD_NEEDS_REQDATA; + c->request = ESD_PROTO_CONNECT; + + c->sink_input = NULL; + c->input_memblockq = NULL; + + c->source_output = NULL; + c->output_memblockq = NULL; + + c->playback.current_memblock = NULL; + c->playback.memblock_index = 0; + c->playback.fragment_size = 0; + + c->scache.memchunk.length = c->scache.memchunk.index = 0; + c->scache.memchunk.memblock = NULL; + c->scache.name = NULL; + + c->original_name = NULL; + + if (!c->authorized) { + struct timeval tv; + pa_gettimeofday(&tv); + tv.tv_sec += AUTH_TIMEOUT; + c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c); + } else + c->auth_timeout_event = NULL; + + c->defer_event = p->core->mainloop->defer_new(p->core->mainloop, defer_callback, c); + assert(c->defer_event); + p->core->mainloop->defer_enable(c->defer_event, 0); + + pa_idxset_put(p->connections, c, &c->index); +} + +/*** entry points ***/ + +pa_protocol_esound* pa_protocol_esound_new(pa_core*core, pa_socket_server *server, pa_module *m, pa_modargs *ma) { + pa_protocol_esound *p; + int public = 0; + assert(core && server && ma); + + p = pa_xnew(pa_protocol_esound, 1); + + if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &public) < 0) { + pa_log(__FILE__": auth-anonymous= expects a boolean argument."); + return NULL; + } + + if (pa_authkey_load_auto(pa_modargs_get_value(ma, "cookie", DEFAULT_COOKIE_FILE), p->esd_key, sizeof(p->esd_key)) < 0) { + pa_xfree(p); + return NULL; + } + + p->module = m; + p->public = public; + p->server = server; + pa_socket_server_set_callback(p->server, on_connection, p); + p->core = core; + p->connections = pa_idxset_new(NULL, NULL); + assert(p->connections); + + p->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL)); + p->source_name = pa_xstrdup(pa_modargs_get_value(ma, "source", NULL)); + p->n_player = 0; + + return p; +} + +void pa_protocol_esound_free(pa_protocol_esound *p) { + struct connection *c; + assert(p); + + while ((c = pa_idxset_first(p->connections, NULL))) + connection_free(c); + + pa_idxset_free(p->connections, NULL, NULL); + pa_socket_server_unref(p->server); + pa_xfree(p); +} diff --git a/src/pulsecore/protocol-esound.h b/src/pulsecore/protocol-esound.h new file mode 100644 index 00000000..79b5acf0 --- /dev/null +++ b/src/pulsecore/protocol-esound.h @@ -0,0 +1,35 @@ +#ifndef fooprotocolesoundhfoo +#define fooprotocolesoundhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> +#include <pulsecore/socket-server.h> +#include <pulsecore/module.h> +#include <pulsecore/modargs.h> + +typedef struct pa_protocol_esound pa_protocol_esound; + +pa_protocol_esound* pa_protocol_esound_new(pa_core*core, pa_socket_server *server, pa_module *m, pa_modargs *ma); +void pa_protocol_esound_free(pa_protocol_esound *p); + +#endif diff --git a/src/pulsecore/protocol-http.c b/src/pulsecore/protocol-http.c new file mode 100644 index 00000000..d0d92629 --- /dev/null +++ b/src/pulsecore/protocol-http.c @@ -0,0 +1,268 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + +#include <pulse/util.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/ioline.h> +#include <pulsecore/log.h> +#include <pulsecore/namereg.h> +#include <pulsecore/cli-text.h> + +#include "protocol-http.h" + +/* Don't allow more than this many concurrent connections */ +#define MAX_CONNECTIONS 10 + +#define internal_server_error(c) http_message((c), 500, "Internal Server Error", NULL) + +#define URL_ROOT "/" +#define URL_CSS "/style" +#define URL_STATUS "/status" + +struct connection { + pa_protocol_http *protocol; + pa_ioline *line; + enum { REQUEST_LINE, MIME_HEADER, DATA } state; + char *url; +}; + +struct pa_protocol_http { + pa_module *module; + pa_core *core; + pa_socket_server*server; + pa_idxset *connections; +}; + +static void http_response(struct connection *c, int code, const char *msg, const char *mime) { + char s[256]; + assert(c); + assert(msg); + assert(mime); + + snprintf(s, sizeof(s), + "HTTP/1.0 %i %s\n" + "Connection: close\n" + "Content-Type: %s\n" + "Cache-Control: no-cache\n" + "Expires: 0\n" + "Server: "PACKAGE_NAME"/"PACKAGE_VERSION"\n" + "\n", code, msg, mime); + + pa_ioline_puts(c->line, s); +} + +static void http_message(struct connection *c, int code, const char *msg, const char *text) { + char s[256]; + assert(c); + + http_response(c, code, msg, "text/html"); + + if (!text) + text = msg; + + snprintf(s, sizeof(s), + "<?xml version=\"1.0\"?>\n" + "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n" + "<html xmlns=\"http://www.w3.org/1999/xhtml\"><head><title>%s</title></head>\n" + "<body>%s</body></html>\n", + text, text); + + pa_ioline_puts(c->line, s); + pa_ioline_defer_close(c->line); +} + + +static void connection_free(struct connection *c, int del) { + assert(c); + + if (c->url) + pa_xfree(c->url); + + if (del) + pa_idxset_remove_by_data(c->protocol->connections, c, NULL); + pa_ioline_unref(c->line); + pa_xfree(c); +} + +static void line_callback(pa_ioline *line, const char *s, void *userdata) { + struct connection *c = userdata; + assert(line); + assert(c); + + if (!s) { + /* EOF */ + connection_free(c, 1); + return; + } + + switch (c->state) { + case REQUEST_LINE: { + if (memcmp(s, "GET ", 4)) + goto fail; + + s +=4; + + c->url = pa_xstrndup(s, strcspn(s, " \r\n\t?")); + c->state = MIME_HEADER; + break; + + } + + case MIME_HEADER: { + + /* Ignore MIME headers */ + if (strcspn(s, " \r\n") != 0) + break; + + /* We're done */ + c->state = DATA; + + pa_log_info(__FILE__": request for %s", c->url); + + if (!strcmp(c->url, URL_ROOT)) { + char txt[256]; + http_response(c, 200, "OK", "text/html"); + + pa_ioline_puts(c->line, + "<?xml version=\"1.0\"?>\n" + "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n" + "<html xmlns=\"http://www.w3.org/1999/xhtml\"><title>"PACKAGE_NAME" "PACKAGE_VERSION"</title>\n" + "<link rel=\"stylesheet\" type=\"text/css\" href=\"style\"/></head><body>\n"); + + pa_ioline_puts(c->line, + "<h1>"PACKAGE_NAME" "PACKAGE_VERSION"</h1>\n" + "<table>"); + +#define PRINTF_FIELD(a,b) pa_ioline_printf(c->line, "<tr><td><b>%s</b></td><td>%s</td></tr>\n",(a),(b)) + + PRINTF_FIELD("User Name:", pa_get_user_name(txt, sizeof(txt))); + PRINTF_FIELD("Fully Qualified Domain Name:", pa_get_fqdn(txt, sizeof(txt))); + PRINTF_FIELD("Default Sample Specification:", pa_sample_spec_snprint(txt, sizeof(txt), &c->protocol->core->default_sample_spec)); + PRINTF_FIELD("Default Sink:", pa_namereg_get_default_sink_name(c->protocol->core)); + PRINTF_FIELD("Default Source:", pa_namereg_get_default_source_name(c->protocol->core)); + + pa_ioline_puts(c->line, "</table>"); + + pa_ioline_puts(c->line, "<p><a href=\"/status\">Click here</a> for an extensive server status report.</p>"); + + pa_ioline_puts(c->line, "</body></html>\n"); + + pa_ioline_defer_close(c->line); + } else if (!strcmp(c->url, URL_CSS)) { + http_response(c, 200, "OK", "text/css"); + + pa_ioline_puts(c->line, + "body { color: black; background-color: white; margin: 0.5cm; }\n" + "a:link, a:visited { color: #900000; }\n" + "p { margin-left: 0.5cm; margin-right: 0.5cm; }\n" + "h1 { color: #00009F; }\n" + "h2 { color: #00009F; }\n" + "ul { margin-left: .5cm; }\n" + "ol { margin-left: .5cm; }\n" + "pre { margin-left: .5cm; background-color: #f0f0f0; padding: 0.4cm;}\n" + ".grey { color: #afafaf; }\n" + "table { margin-left: 1cm; border:1px solid lightgrey; padding: 0.2cm; }\n" + "td { padding-left:10px; padding-right:10px; }\n"); + + pa_ioline_defer_close(c->line); + } else if (!strcmp(c->url, URL_STATUS)) { + char *r; + + http_response(c, 200, "OK", "text/plain"); + r = pa_full_status_string(c->protocol->core); + pa_ioline_puts(c->line, r); + pa_xfree(r); + + pa_ioline_defer_close(c->line); + } else + http_message(c, 404, "Not Found", NULL); + + break; + } + + default: + ; + } + + return; + +fail: + internal_server_error(c); +} + +static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata) { + pa_protocol_http *p = userdata; + struct connection *c; + assert(s && io && p); + + if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { + pa_log_warn(__FILE__": Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_iochannel_free(io); + return; + } + + c = pa_xmalloc(sizeof(struct connection)); + c->protocol = p; + c->line = pa_ioline_new(io); + c->state = REQUEST_LINE; + c->url = NULL; + + pa_ioline_set_callback(c->line, line_callback, c); + pa_idxset_put(p->connections, c, NULL); +} + +pa_protocol_http* pa_protocol_http_new(pa_core *core, pa_socket_server *server, pa_module *m, PA_GCC_UNUSED pa_modargs *ma) { + pa_protocol_http* p; + assert(core && server); + + p = pa_xmalloc(sizeof(pa_protocol_http)); + p->module = m; + p->core = core; + p->server = server; + p->connections = pa_idxset_new(NULL, NULL); + + pa_socket_server_set_callback(p->server, on_connection, p); + + return p; +} + +static void free_connection(void *p, PA_GCC_UNUSED void *userdata) { + assert(p); + connection_free(p, 0); +} + +void pa_protocol_http_free(pa_protocol_http *p) { + assert(p); + + pa_idxset_free(p->connections, free_connection, NULL); + pa_socket_server_unref(p->server); + pa_xfree(p); +} diff --git a/src/pulsecore/protocol-http.h b/src/pulsecore/protocol-http.h new file mode 100644 index 00000000..5d5dba31 --- /dev/null +++ b/src/pulsecore/protocol-http.h @@ -0,0 +1,35 @@ +#ifndef fooprotocolhttphfoo +#define fooprotocolhttphfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> +#include <pulsecore/socket-server.h> +#include <pulsecore/module.h> +#include <pulsecore/modargs.h> + +typedef struct pa_protocol_http pa_protocol_http; + +pa_protocol_http* pa_protocol_http_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma); +void pa_protocol_http_free(pa_protocol_http *n); + +#endif diff --git a/src/pulsecore/protocol-native.c b/src/pulsecore/protocol-native.c new file mode 100644 index 00000000..1f936e75 --- /dev/null +++ b/src/pulsecore/protocol-native.c @@ -0,0 +1,2398 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <unistd.h> + +#include <pulse/timeval.h> +#include <pulse/version.h> +#include <pulse/utf8.h> +#include <pulse/util.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/native-common.h> +#include <pulsecore/packet.h> +#include <pulsecore/client.h> +#include <pulsecore/source-output.h> +#include <pulsecore/sink-input.h> +#include <pulsecore/pstream.h> +#include <pulsecore/tagstruct.h> +#include <pulsecore/pdispatch.h> +#include <pulsecore/pstream-util.h> +#include <pulsecore/authkey.h> +#include <pulsecore/namereg.h> +#include <pulsecore/core-scache.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> +#include <pulsecore/autoload.h> +#include <pulsecore/authkey-prop.h> +#include <pulsecore/strlist.h> +#include <pulsecore/props.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/llist.h> + +#include "protocol-native.h" + +/* Kick a client if it doesn't authenticate within this time */ +#define AUTH_TIMEOUT 60 + +/* Don't accept more connection than this */ +#define MAX_CONNECTIONS 10 + +#define MAX_MEMBLOCKQ_LENGTH (4*1024*1024) /* 4MB */ + +struct connection; +struct pa_protocol_native; + +struct record_stream { + struct connection *connection; + uint32_t index; + pa_source_output *source_output; + pa_memblockq *memblockq; + size_t fragment_size; +}; + +struct playback_stream { + int type; + struct connection *connection; + uint32_t index; + pa_sink_input *sink_input; + pa_memblockq *memblockq; + size_t requested_bytes; + int drain_request; + uint32_t drain_tag; + uint32_t syncid; + int underrun; + + /* Sync group members */ + PA_LLIST_FIELDS(struct playback_stream); +}; + +struct upload_stream { + int type; + struct connection *connection; + uint32_t index; + pa_memchunk memchunk; + size_t length; + char *name; + pa_sample_spec sample_spec; + pa_channel_map channel_map; +}; + +struct output_stream { + int type; +}; + +enum { + UPLOAD_STREAM, + PLAYBACK_STREAM +}; + +struct connection { + int authorized; + uint32_t version; + pa_protocol_native *protocol; + pa_client *client; + pa_pstream *pstream; + pa_pdispatch *pdispatch; + pa_idxset *record_streams, *output_streams; + uint32_t rrobin_index; + pa_subscription *subscription; + pa_time_event *auth_timeout_event; +}; + +struct pa_protocol_native { + pa_module *module; + int public; + pa_core *core; + pa_socket_server *server; + pa_idxset *connections; + uint8_t auth_cookie[PA_NATIVE_COOKIE_LENGTH]; + int auth_cookie_in_property; +#ifdef SCM_CREDENTIALS + char *auth_group; +#endif +}; + +static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk); +static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length); +static void sink_input_kill_cb(pa_sink_input *i); +static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i); + +static void request_bytes(struct playback_stream*s); + +static void source_output_kill_cb(pa_source_output *o); +static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk); +static pa_usec_t source_output_get_latency_cb(pa_source_output *o); + +static void command_exit(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_create_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_drain_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_create_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_delete_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_auth(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_set_client_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_lookup(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_stat(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_get_playback_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_get_record_latency(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_create_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_finish_upload_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_play_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_remove_sample(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_get_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_get_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_get_server_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_subscribe(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_set_volume(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_set_mute(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_cork_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_flush_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_trigger_or_prebuf_playback_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_set_default_sink_or_source(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_set_stream_name(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_kill(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_load_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_unload_module(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_add_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_remove_autoload(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_get_autoload_info(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_get_autoload_info_list(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_cork_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); +static void command_flush_record_stream(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata); + +static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = { + [PA_COMMAND_ERROR] = NULL, + [PA_COMMAND_TIMEOUT] = NULL, + [PA_COMMAND_REPLY] = NULL, + [PA_COMMAND_CREATE_PLAYBACK_STREAM] = command_create_playback_stream, + [PA_COMMAND_DELETE_PLAYBACK_STREAM] = command_delete_stream, + [PA_COMMAND_DRAIN_PLAYBACK_STREAM] = command_drain_playback_stream, + [PA_COMMAND_CREATE_RECORD_STREAM] = command_create_record_stream, + [PA_COMMAND_DELETE_RECORD_STREAM] = command_delete_stream, + [PA_COMMAND_AUTH] = command_auth, + [PA_COMMAND_REQUEST] = NULL, + [PA_COMMAND_EXIT] = command_exit, + [PA_COMMAND_SET_CLIENT_NAME] = command_set_client_name, + [PA_COMMAND_LOOKUP_SINK] = command_lookup, + [PA_COMMAND_LOOKUP_SOURCE] = command_lookup, + [PA_COMMAND_STAT] = command_stat, + [PA_COMMAND_GET_PLAYBACK_LATENCY] = command_get_playback_latency, + [PA_COMMAND_GET_RECORD_LATENCY] = command_get_record_latency, + [PA_COMMAND_CREATE_UPLOAD_STREAM] = command_create_upload_stream, + [PA_COMMAND_DELETE_UPLOAD_STREAM] = command_delete_stream, + [PA_COMMAND_FINISH_UPLOAD_STREAM] = command_finish_upload_stream, + [PA_COMMAND_PLAY_SAMPLE] = command_play_sample, + [PA_COMMAND_REMOVE_SAMPLE] = command_remove_sample, + [PA_COMMAND_GET_SINK_INFO] = command_get_info, + [PA_COMMAND_GET_SOURCE_INFO] = command_get_info, + [PA_COMMAND_GET_CLIENT_INFO] = command_get_info, + [PA_COMMAND_GET_MODULE_INFO] = command_get_info, + [PA_COMMAND_GET_SINK_INPUT_INFO] = command_get_info, + [PA_COMMAND_GET_SOURCE_OUTPUT_INFO] = command_get_info, + [PA_COMMAND_GET_SAMPLE_INFO] = command_get_info, + [PA_COMMAND_GET_SINK_INFO_LIST] = command_get_info_list, + [PA_COMMAND_GET_SOURCE_INFO_LIST] = command_get_info_list, + [PA_COMMAND_GET_MODULE_INFO_LIST] = command_get_info_list, + [PA_COMMAND_GET_CLIENT_INFO_LIST] = command_get_info_list, + [PA_COMMAND_GET_SINK_INPUT_INFO_LIST] = command_get_info_list, + [PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST] = command_get_info_list, + [PA_COMMAND_GET_SAMPLE_INFO_LIST] = command_get_info_list, + [PA_COMMAND_GET_SERVER_INFO] = command_get_server_info, + [PA_COMMAND_SUBSCRIBE] = command_subscribe, + + [PA_COMMAND_SET_SINK_VOLUME] = command_set_volume, + [PA_COMMAND_SET_SINK_INPUT_VOLUME] = command_set_volume, + [PA_COMMAND_SET_SOURCE_VOLUME] = command_set_volume, + + [PA_COMMAND_SET_SINK_MUTE] = command_set_mute, + [PA_COMMAND_SET_SOURCE_MUTE] = command_set_mute, + + [PA_COMMAND_CORK_PLAYBACK_STREAM] = command_cork_playback_stream, + [PA_COMMAND_FLUSH_PLAYBACK_STREAM] = command_flush_playback_stream, + [PA_COMMAND_TRIGGER_PLAYBACK_STREAM] = command_trigger_or_prebuf_playback_stream, + [PA_COMMAND_PREBUF_PLAYBACK_STREAM] = command_trigger_or_prebuf_playback_stream, + + [PA_COMMAND_CORK_RECORD_STREAM] = command_cork_record_stream, + [PA_COMMAND_FLUSH_RECORD_STREAM] = command_flush_record_stream, + + [PA_COMMAND_SET_DEFAULT_SINK] = command_set_default_sink_or_source, + [PA_COMMAND_SET_DEFAULT_SOURCE] = command_set_default_sink_or_source, + [PA_COMMAND_SET_PLAYBACK_STREAM_NAME] = command_set_stream_name, + [PA_COMMAND_SET_RECORD_STREAM_NAME] = command_set_stream_name, + [PA_COMMAND_KILL_CLIENT] = command_kill, + [PA_COMMAND_KILL_SINK_INPUT] = command_kill, + [PA_COMMAND_KILL_SOURCE_OUTPUT] = command_kill, + [PA_COMMAND_LOAD_MODULE] = command_load_module, + [PA_COMMAND_UNLOAD_MODULE] = command_unload_module, + [PA_COMMAND_GET_AUTOLOAD_INFO] = command_get_autoload_info, + [PA_COMMAND_GET_AUTOLOAD_INFO_LIST] = command_get_autoload_info_list, + [PA_COMMAND_ADD_AUTOLOAD] = command_add_autoload, + [PA_COMMAND_REMOVE_AUTOLOAD] = command_remove_autoload +}; + +/* structure management */ + +static struct upload_stream* upload_stream_new( + struct connection *c, + const pa_sample_spec *ss, + const pa_channel_map *map, + const char *name, size_t length) { + + struct upload_stream *s; + assert(c && ss && name && length); + + s = pa_xnew(struct upload_stream, 1); + s->type = UPLOAD_STREAM; + s->connection = c; + s->sample_spec = *ss; + s->channel_map = *map; + s->name = pa_xstrdup(name); + + s->memchunk.memblock = NULL; + s->memchunk.index = 0; + s->memchunk.length = 0; + + s->length = length; + + pa_idxset_put(c->output_streams, s, &s->index); + return s; +} + +static void upload_stream_free(struct upload_stream *o) { + assert(o && o->connection); + + pa_idxset_remove_by_data(o->connection->output_streams, o, NULL); + + pa_xfree(o->name); + + if (o->memchunk.memblock) + pa_memblock_unref(o->memchunk.memblock); + + pa_xfree(o); +} + +static struct record_stream* record_stream_new( + struct connection *c, + pa_source *source, + const pa_sample_spec *ss, + const pa_channel_map *map, + const char *name, + size_t maxlength, + size_t fragment_size) { + + struct record_stream *s; + pa_source_output *source_output; + size_t base; + assert(c && source && ss && name && maxlength); + + if (!(source_output = pa_source_output_new(source, __FILE__, name, ss, map, -1))) + return NULL; + + s = pa_xnew(struct record_stream, 1); + s->connection = c; + s->source_output = source_output; + s->source_output->push = source_output_push_cb; + s->source_output->kill = source_output_kill_cb; + s->source_output->get_latency = source_output_get_latency_cb; + s->source_output->userdata = s; + s->source_output->owner = c->protocol->module; + s->source_output->client = c->client; + + s->memblockq = pa_memblockq_new( + 0, + maxlength, + 0, + base = pa_frame_size(ss), + 1, + 0, + NULL, + c->protocol->core->memblock_stat); + assert(s->memblockq); + + s->fragment_size = (fragment_size/base)*base; + if (!s->fragment_size) + s->fragment_size = base; + + pa_idxset_put(c->record_streams, s, &s->index); + return s; +} + +static void record_stream_free(struct record_stream* r) { + assert(r && r->connection); + + pa_idxset_remove_by_data(r->connection->record_streams, r, NULL); + pa_source_output_disconnect(r->source_output); + pa_source_output_unref(r->source_output); + pa_memblockq_free(r->memblockq); + pa_xfree(r); +} + +static struct playback_stream* playback_stream_new( + struct connection *c, + pa_sink *sink, + const pa_sample_spec *ss, + const pa_channel_map *map, + const char *name, + size_t maxlength, + size_t tlength, + size_t prebuf, + size_t minreq, + pa_cvolume *volume, + uint32_t syncid) { + + struct playback_stream *s, *ssync; + pa_sink_input *sink_input; + pa_memblock *silence; + uint32_t idx; + int64_t start_index; + + assert(c && sink && ss && name && maxlength); + + /* Find syncid group */ + for (ssync = pa_idxset_first(c->output_streams, &idx); ssync; ssync = pa_idxset_next(c->output_streams, &idx)) { + + if (ssync->type != PLAYBACK_STREAM) + continue; + + if (ssync->syncid == syncid) + break; + } + + /* Synced streams must connect to the same sink */ + if (ssync && ssync->sink_input->sink != sink) + return NULL; + + if (!(sink_input = pa_sink_input_new(sink, __FILE__, name, ss, map, volume, 0, -1))) + return NULL; + + s = pa_xnew(struct playback_stream, 1); + s->type = PLAYBACK_STREAM; + s->connection = c; + s->syncid = syncid; + s->sink_input = sink_input; + s->underrun = 1; + + s->sink_input->peek = sink_input_peek_cb; + s->sink_input->drop = sink_input_drop_cb; + s->sink_input->kill = sink_input_kill_cb; + s->sink_input->get_latency = sink_input_get_latency_cb; + s->sink_input->userdata = s; + s->sink_input->owner = c->protocol->module; + s->sink_input->client = c->client; + + if (ssync) { + /* Sync id found, now find head of list */ + PA_LLIST_FIND_HEAD(struct playback_stream, ssync, &ssync); + + /* Prepend ourselves */ + PA_LLIST_PREPEND(struct playback_stream, ssync, s); + + /* Set our start index to the current read index of the other grozp member(s) */ + assert(ssync->next); + start_index = pa_memblockq_get_read_index(ssync->next->memblockq); + } else { + /* This ia a new sync group */ + PA_LLIST_INIT(struct playback_stream, s); + start_index = 0; + } + + silence = pa_silence_memblock_new(ss, 0, c->protocol->core->memblock_stat); + + s->memblockq = pa_memblockq_new( + start_index, + maxlength, + tlength, + pa_frame_size(ss), + prebuf, + minreq, + silence, + c->protocol->core->memblock_stat); + + pa_memblock_unref(silence); + + s->requested_bytes = 0; + s->drain_request = 0; + + pa_idxset_put(c->output_streams, s, &s->index); + + return s; +} + +static void playback_stream_free(struct playback_stream* p) { + struct playback_stream *head; + assert(p && p->connection); + + if (p->drain_request) + pa_pstream_send_error(p->connection->pstream, p->drain_tag, PA_ERR_NOENTITY); + + PA_LLIST_FIND_HEAD(struct playback_stream, p, &head); + PA_LLIST_REMOVE(struct playback_stream, head, p); + + pa_idxset_remove_by_data(p->connection->output_streams, p, NULL); + pa_sink_input_disconnect(p->sink_input); + pa_sink_input_unref(p->sink_input); + pa_memblockq_free(p->memblockq); + pa_xfree(p); +} + +static void connection_free(struct connection *c) { + struct record_stream *r; + struct output_stream *o; + assert(c && c->protocol); + + pa_idxset_remove_by_data(c->protocol->connections, c, NULL); + while ((r = pa_idxset_first(c->record_streams, NULL))) + record_stream_free(r); + pa_idxset_free(c->record_streams, NULL, NULL); + + while ((o = pa_idxset_first(c->output_streams, NULL))) + if (o->type == PLAYBACK_STREAM) + playback_stream_free((struct playback_stream*) o); + else + upload_stream_free((struct upload_stream*) o); + pa_idxset_free(c->output_streams, NULL, NULL); + + pa_pdispatch_unref(c->pdispatch); + pa_pstream_close(c->pstream); + pa_pstream_unref(c->pstream); + pa_client_free(c->client); + + if (c->subscription) + pa_subscription_free(c->subscription); + + if (c->auth_timeout_event) + c->protocol->core->mainloop->time_free(c->auth_timeout_event); + + pa_xfree(c); +} + +static void request_bytes(struct playback_stream *s) { + pa_tagstruct *t; + size_t l; + assert(s); + + if (!(l = pa_memblockq_missing(s->memblockq))) + return; + + if (l <= s->requested_bytes) + return; + + l -= s->requested_bytes; + + if (l < pa_memblockq_get_minreq(s->memblockq)) + return; + + s->requested_bytes += l; + + t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_REQUEST); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, s->index); + pa_tagstruct_putu32(t, l); + pa_pstream_send_tagstruct(s->connection->pstream, t); + +/* pa_log(__FILE__": Requesting %u bytes", l); */ +} + +static void send_memblock(struct connection *c) { + uint32_t start; + struct record_stream *r; + + start = PA_IDXSET_INVALID; + for (;;) { + pa_memchunk chunk; + + if (!(r = pa_idxset_rrobin(c->record_streams, &c->rrobin_index))) + return; + + if (start == PA_IDXSET_INVALID) + start = c->rrobin_index; + else if (start == c->rrobin_index) + return; + + if (pa_memblockq_peek(r->memblockq, &chunk) >= 0) { + pa_memchunk schunk = chunk; + + if (schunk.length > r->fragment_size) + schunk.length = r->fragment_size; + + pa_pstream_send_memblock(c->pstream, r->index, 0, PA_SEEK_RELATIVE, &schunk); + pa_memblockq_drop(r->memblockq, &chunk, schunk.length); + pa_memblock_unref(schunk.memblock); + + return; + } + } +} + +static void send_playback_stream_killed(struct playback_stream *p) { + pa_tagstruct *t; + assert(p); + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_PLAYBACK_STREAM_KILLED); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, p->index); + pa_pstream_send_tagstruct(p->connection->pstream, t); +} + +static void send_record_stream_killed(struct record_stream *r) { + pa_tagstruct *t; + assert(r); + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_RECORD_STREAM_KILLED); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, r->index); + pa_pstream_send_tagstruct(r->connection->pstream, t); +} + +/*** sinkinput callbacks ***/ + +static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) { + struct playback_stream *s; + assert(i && i->userdata && chunk); + s = i->userdata; + + if (pa_memblockq_get_length(s->memblockq) <= 0 && !s->underrun) { + pa_tagstruct *t; + + /* Report that we're empty */ + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_UNDERFLOW); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, s->index); + pa_pstream_send_tagstruct(s->connection->pstream, t); + + s->underrun = 1; + } + + if (pa_memblockq_peek(s->memblockq, chunk) < 0) { +/* pa_log(__FILE__": peek: failure"); */ + return -1; + } + +/* pa_log(__FILE__": peek: %u", chunk->length); */ + + return 0; +} + +static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) { + struct playback_stream *s; + assert(i && i->userdata && length); + s = i->userdata; + + pa_memblockq_drop(s->memblockq, chunk, length); + + request_bytes(s); + + if (s->drain_request && !pa_memblockq_is_readable(s->memblockq)) { + pa_pstream_send_simple_ack(s->connection->pstream, s->drain_tag); + s->drain_request = 0; + } + +/* pa_log(__FILE__": after_drop: %u %u", pa_memblockq_get_length(s->memblockq), pa_memblockq_is_readable(s->memblockq)); */ +} + +static void sink_input_kill_cb(pa_sink_input *i) { + assert(i && i->userdata); + send_playback_stream_killed((struct playback_stream *) i->userdata); + playback_stream_free((struct playback_stream *) i->userdata); +} + +static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) { + struct playback_stream *s; + assert(i && i->userdata); + s = i->userdata; + + /*pa_log(__FILE__": get_latency: %u", pa_memblockq_get_length(s->memblockq));*/ + + return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &s->sink_input->sample_spec); +} + +/*** source_output callbacks ***/ + +static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) { + struct record_stream *s; + assert(o && o->userdata && chunk); + s = o->userdata; + + if (pa_memblockq_push_align(s->memblockq, chunk) < 0) { + pa_log_warn(__FILE__": Failed to push data into output queue."); + return; + } + + if (!pa_pstream_is_pending(s->connection->pstream)) + send_memblock(s->connection); +} + +static void source_output_kill_cb(pa_source_output *o) { + assert(o && o->userdata); + send_record_stream_killed((struct record_stream *) o->userdata); + record_stream_free((struct record_stream *) o->userdata); +} + +static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { + struct record_stream *s; + assert(o && o->userdata); + s = o->userdata; + + /*pa_log(__FILE__": get_latency: %u", pa_memblockq_get_length(s->memblockq));*/ + + return pa_bytes_to_usec(pa_memblockq_get_length(s->memblockq), &o->sample_spec); +} + +/*** pdispatch callbacks ***/ + +static void protocol_error(struct connection *c) { + pa_log(__FILE__": protocol error, kicking client"); + connection_free(c); +} + +#define CHECK_VALIDITY(pstream, expression, tag, error) do { \ +if (!(expression)) { \ + pa_pstream_send_error((pstream), (tag), (error)); \ + return; \ +} \ +} while(0); + +static pa_tagstruct *reply_new(uint32_t tag) { + pa_tagstruct *reply; + + reply = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(reply, PA_COMMAND_REPLY); + pa_tagstruct_putu32(reply, tag); + return reply; +} + +static void command_create_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + struct playback_stream *s; + uint32_t maxlength, tlength, prebuf, minreq, sink_index, syncid; + const char *name, *sink_name; + pa_sample_spec ss; + pa_channel_map map; + pa_tagstruct *reply; + pa_sink *sink; + pa_cvolume volume; + int corked; + + assert(c && t && c->protocol && c->protocol->core); + + if (pa_tagstruct_get( + t, + PA_TAG_STRING, &name, + PA_TAG_SAMPLE_SPEC, &ss, + PA_TAG_CHANNEL_MAP, &map, + PA_TAG_U32, &sink_index, + PA_TAG_STRING, &sink_name, + PA_TAG_U32, &maxlength, + PA_TAG_BOOLEAN, &corked, + PA_TAG_U32, &tlength, + PA_TAG_U32, &prebuf, + PA_TAG_U32, &minreq, + PA_TAG_U32, &syncid, + PA_TAG_CVOLUME, &volume, + PA_TAG_INVALID) < 0 || + !pa_tagstruct_eof(t) || + !name) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, map.channels == ss.channels && volume.channels == ss.channels, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, maxlength > 0 && maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID); + + if (sink_index != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); + else + sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1); + + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + s = playback_stream_new(c, sink, &ss, &map, name, maxlength, tlength, prebuf, minreq, &volume, syncid); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); + + pa_sink_input_cork(s->sink_input, corked); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, s->index); + assert(s->sink_input); + pa_tagstruct_putu32(reply, s->sink_input->index); + pa_tagstruct_putu32(reply, s->requested_bytes = pa_memblockq_missing(s->memblockq)); + + if (c->version >= 9) { + /* Since 0.9 we support sending the buffer metrics back to the client */ + + pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq)); + pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_tlength(s->memblockq)); + pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_prebuf(s->memblockq)); + pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_minreq(s->memblockq)); + } + + pa_pstream_send_tagstruct(c->pstream, reply); + request_bytes(s); +} + +static void command_delete_stream(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t channel; + assert(c && t); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + if (command == PA_COMMAND_DELETE_PLAYBACK_STREAM) { + struct playback_stream *s; + if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != PLAYBACK_STREAM)) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + playback_stream_free(s); + } else if (command == PA_COMMAND_DELETE_RECORD_STREAM) { + struct record_stream *s; + if (!(s = pa_idxset_get_by_index(c->record_streams, channel))) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + record_stream_free(s); + } else { + struct upload_stream *s; + assert(command == PA_COMMAND_DELETE_UPLOAD_STREAM); + if (!(s = pa_idxset_get_by_index(c->output_streams, channel)) || (s->type != UPLOAD_STREAM)) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + upload_stream_free(s); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_create_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + struct record_stream *s; + uint32_t maxlength, fragment_size; + uint32_t source_index; + const char *name, *source_name; + pa_sample_spec ss; + pa_channel_map map; + pa_tagstruct *reply; + pa_source *source; + int corked; + assert(c && t && c->protocol && c->protocol->core); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_get_sample_spec(t, &ss) < 0 || + pa_tagstruct_get_channel_map(t, &map) < 0 || + pa_tagstruct_getu32(t, &source_index) < 0 || + pa_tagstruct_gets(t, &source_name) < 0 || + pa_tagstruct_getu32(t, &maxlength) < 0 || + pa_tagstruct_get_boolean(t, &corked) < 0 || + pa_tagstruct_getu32(t, &fragment_size) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, source_index != PA_INVALID_INDEX || !source_name || (*source_name && pa_utf8_valid(source_name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, maxlength <= MAX_MEMBLOCKQ_LENGTH, tag, PA_ERR_INVALID); + + if (source_index != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, source_index); + else + source = pa_namereg_get(c->protocol->core, source_name, PA_NAMEREG_SOURCE, 1); + + CHECK_VALIDITY(c->pstream, source, tag, PA_ERR_NOENTITY); + + s = record_stream_new(c, source, &ss, &map, name, maxlength, fragment_size); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); + + pa_source_output_cork(s->source_output, corked); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, s->index); + assert(s->source_output); + pa_tagstruct_putu32(reply, s->source_output->index); + + if (c->version >= 9) { + /* Since 0.9 we support sending the buffer metrics back to the client */ + + pa_tagstruct_putu32(reply, (uint32_t) pa_memblockq_get_maxlength(s->memblockq)); + pa_tagstruct_putu32(reply, (uint32_t) s->fragment_size); + } + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_exit(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + assert(c && t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop); + c->protocol->core->mainloop->quit(c->protocol->core->mainloop, 0); + pa_pstream_send_simple_ack(c->pstream, tag); /* nonsense */ +} + +static void command_auth(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const void*cookie; + pa_tagstruct *reply; + assert(c && t); + + if (pa_tagstruct_getu32(t, &c->version) < 0 || + pa_tagstruct_get_arbitrary(t, &cookie, PA_NATIVE_COOKIE_LENGTH) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + /* Minimum supported version */ + if (c->version < 8) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_VERSION); + return; + } + + if (!c->authorized) { + int success = 0; + +#ifdef SCM_CREDENTIALS + const struct ucred *ucred = pa_pdispatch_creds(pd); + + if (ucred) { + if (ucred->uid == getuid()) + success = 1; + else if (c->protocol->auth_group) { + int r; + + if ((r = pa_uid_in_group(ucred->uid, c->protocol->auth_group)) < 0) + pa_log_warn(__FILE__": failed to check group membership."); + else if (r > 0) + success = 1; + } + + pa_log_info(__FILE__": Got credentials: pid=%lu uid=%lu gid=%lu auth=%i", + (unsigned long) ucred->pid, + (unsigned long) ucred->uid, + (unsigned long) ucred->gid, + success); + } +#endif + + if (memcmp(c->protocol->auth_cookie, cookie, PA_NATIVE_COOKIE_LENGTH) == 0) + success = 1; + + if (!success) { + pa_log_warn(__FILE__": Denied access to client with invalid authorization data."); + pa_pstream_send_error(c->pstream, tag, PA_ERR_ACCESS); + return; + } + + c->authorized = 1; + if (c->auth_timeout_event) { + c->protocol->core->mainloop->time_free(c->auth_timeout_event); + c->auth_timeout_event = NULL; + } + } + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, PA_PROTOCOL_VERSION); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_set_client_name(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const char *name; + assert(c && t); + + if (pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + pa_client_set_name(c->client, name); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_lookup(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const char *name; + uint32_t idx = PA_IDXSET_INVALID; + assert(c && t); + + if (pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_LOOKUP_SINK) { + pa_sink *sink; + if ((sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1))) + idx = sink->index; + } else { + pa_source *source; + assert(command == PA_COMMAND_LOOKUP_SOURCE); + if ((source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1))) + idx = source->index; + } + + if (idx == PA_IDXSET_INVALID) + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + else { + pa_tagstruct *reply; + reply = reply_new(tag); + pa_tagstruct_putu32(reply, idx); + pa_pstream_send_tagstruct(c->pstream, reply); + } +} + +static void command_drain_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + struct playback_stream *s; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); + + s->drain_request = 0; + + pa_memblockq_prebuf_disable(s->memblockq); + + if (!pa_memblockq_is_readable(s->memblockq)) { +/* pa_log("immediate drain: %u", pa_memblockq_get_length(s->memblockq)); */ + pa_pstream_send_simple_ack(c->pstream, tag); + } else { +/* pa_log("slow drain triggered"); */ + s->drain_request = 1; + s->drain_tag = tag; + + pa_sink_notify(s->sink_input->sink); + } +} + +static void command_stat(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_tagstruct *reply; + assert(c && t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total); + pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->total_size); + pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated); + pa_tagstruct_putu32(reply, c->protocol->core->memblock_stat->allocated_size); + pa_tagstruct_putu32(reply, pa_scache_total_size(c->protocol->core)); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_playback_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_tagstruct *reply; + struct playback_stream *s; + struct timeval tv, now; + uint32_t idx; + pa_usec_t latency; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_timeval(t, &tv) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); + + reply = reply_new(tag); + + latency = pa_sink_get_latency(s->sink_input->sink); + if (s->sink_input->resampled_chunk.memblock) + latency += pa_bytes_to_usec(s->sink_input->resampled_chunk.length, &s->sink_input->sample_spec); + pa_tagstruct_put_usec(reply, latency); + + pa_tagstruct_put_usec(reply, 0); + pa_tagstruct_put_boolean(reply, pa_memblockq_is_readable(s->memblockq)); + pa_tagstruct_put_timeval(reply, &tv); + pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now)); + pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq)); + pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq)); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_record_latency(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_tagstruct *reply; + struct record_stream *s; + struct timeval tv, now; + uint32_t idx; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_timeval(t, &tv) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + reply = reply_new(tag); + pa_tagstruct_put_usec(reply, s->source_output->source->monitor_of ? pa_sink_get_latency(s->source_output->source->monitor_of) : 0); + pa_tagstruct_put_usec(reply, pa_source_get_latency(s->source_output->source)); + pa_tagstruct_put_boolean(reply, 0); + pa_tagstruct_put_timeval(reply, &tv); + pa_tagstruct_put_timeval(reply, pa_gettimeofday(&now)); + pa_tagstruct_puts64(reply, pa_memblockq_get_write_index(s->memblockq)); + pa_tagstruct_puts64(reply, pa_memblockq_get_read_index(s->memblockq)); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_create_upload_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + struct upload_stream *s; + uint32_t length; + const char *name; + pa_sample_spec ss; + pa_channel_map map; + pa_tagstruct *reply; + assert(c && t && c->protocol && c->protocol->core); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_get_sample_spec(t, &ss) < 0 || + pa_tagstruct_get_channel_map(t, &map) < 0 || + pa_tagstruct_getu32(t, &length) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, pa_sample_spec_valid(&ss), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_channel_map_valid(&map), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, map.channels == ss.channels, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, (length % pa_frame_size(&ss)) == 0 && length > 0, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, length <= PA_SCACHE_ENTRY_SIZE_MAX, tag, PA_ERR_TOOLARGE); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + s = upload_stream_new(c, &ss, &map, name, length); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_INVALID); + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, s->index); + pa_tagstruct_putu32(reply, length); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_finish_upload_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t channel; + struct upload_stream *s; + uint32_t idx; + assert(c && t); + + if (pa_tagstruct_getu32(t, &channel) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + s = pa_idxset_get_by_index(c->output_streams, channel); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, s->type == UPLOAD_STREAM, tag, PA_ERR_NOENTITY); + + if (pa_scache_add_item(c->protocol->core, s->name, &s->sample_spec, &s->channel_map, &s->memchunk, &idx) < 0) + pa_pstream_send_error(c->pstream, tag, PA_ERR_INTERNAL); + else + pa_pstream_send_simple_ack(c->pstream, tag); + + upload_stream_free(s); +} + +static void command_play_sample(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t sink_index; + pa_volume_t volume; + pa_sink *sink; + const char *name, *sink_name; + assert(c && t); + + if (pa_tagstruct_getu32(t, &sink_index) < 0 || + pa_tagstruct_gets(t, &sink_name) < 0 || + pa_tagstruct_getu32(t, &volume) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, sink_index != PA_INVALID_INDEX || !sink_name || (*sink_name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (sink_index != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, sink_index); + else + sink = pa_namereg_get(c->protocol->core, sink_name, PA_NAMEREG_SINK, 1); + + CHECK_VALIDITY(c->pstream, sink, tag, PA_ERR_NOENTITY); + + if (pa_scache_play_item(c->protocol->core, name, sink, volume) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + return; + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_remove_sample(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const char *name; + assert(c && t); + + if (pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (pa_scache_remove_item(c->protocol->core, name) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + return; + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void sink_fill_tagstruct(pa_tagstruct *t, pa_sink *sink) { + assert(t && sink); + pa_tagstruct_put( + t, + PA_TAG_U32, sink->index, + PA_TAG_STRING, sink->name, + PA_TAG_STRING, sink->description, + PA_TAG_SAMPLE_SPEC, &sink->sample_spec, + PA_TAG_CHANNEL_MAP, &sink->channel_map, + PA_TAG_U32, sink->owner ? sink->owner->index : PA_INVALID_INDEX, + PA_TAG_CVOLUME, pa_sink_get_volume(sink, PA_MIXER_HARDWARE), + PA_TAG_BOOLEAN, pa_sink_get_mute(sink, PA_MIXER_HARDWARE), + PA_TAG_U32, sink->monitor_source->index, + PA_TAG_STRING, sink->monitor_source->name, + PA_TAG_USEC, pa_sink_get_latency(sink), + PA_TAG_STRING, sink->driver, + PA_TAG_U32, (sink->get_hw_volume ? PA_SINK_HW_VOLUME_CTRL : 0) | (sink->get_latency ? PA_SINK_LATENCY : 0), + PA_TAG_INVALID); +} + +static void source_fill_tagstruct(pa_tagstruct *t, pa_source *source) { + assert(t && source); + pa_tagstruct_put( + t, + PA_TAG_U32, source->index, + PA_TAG_STRING, source->name, + PA_TAG_STRING, source->description, + PA_TAG_SAMPLE_SPEC, &source->sample_spec, + PA_TAG_CHANNEL_MAP, &source->channel_map, + PA_TAG_U32, source->owner ? source->owner->index : PA_INVALID_INDEX, + PA_TAG_CVOLUME, pa_source_get_volume(source, PA_MIXER_HARDWARE), + PA_TAG_BOOLEAN, pa_source_get_mute(source, PA_MIXER_HARDWARE), + PA_TAG_U32, source->monitor_of ? source->monitor_of->index : PA_INVALID_INDEX, + PA_TAG_STRING, source->monitor_of ? source->monitor_of->name : NULL, + PA_TAG_USEC, pa_source_get_latency(source), + PA_TAG_STRING, source->driver, + PA_TAG_U32, (source->get_hw_volume ? PA_SOURCE_HW_VOLUME_CTRL : 0) | (source->get_latency ? PA_SOURCE_LATENCY : 0), + PA_TAG_INVALID); +} + +static void client_fill_tagstruct(pa_tagstruct *t, pa_client *client) { + assert(t && client); + pa_tagstruct_putu32(t, client->index); + pa_tagstruct_puts(t, client->name); + pa_tagstruct_putu32(t, client->owner ? client->owner->index : PA_INVALID_INDEX); + pa_tagstruct_puts(t, client->driver); +} + +static void module_fill_tagstruct(pa_tagstruct *t, pa_module *module) { + assert(t && module); + pa_tagstruct_putu32(t, module->index); + pa_tagstruct_puts(t, module->name); + pa_tagstruct_puts(t, module->argument); + pa_tagstruct_putu32(t, module->n_used); + pa_tagstruct_put_boolean(t, module->auto_unload); +} + +static void sink_input_fill_tagstruct(pa_tagstruct *t, pa_sink_input *s) { + assert(t && s); + pa_tagstruct_putu32(t, s->index); + pa_tagstruct_puts(t, s->name); + pa_tagstruct_putu32(t, s->owner ? s->owner->index : PA_INVALID_INDEX); + pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX); + pa_tagstruct_putu32(t, s->sink->index); + pa_tagstruct_put_sample_spec(t, &s->sample_spec); + pa_tagstruct_put_channel_map(t, &s->channel_map); + pa_tagstruct_put_cvolume(t, &s->volume); + pa_tagstruct_put_usec(t, pa_sink_input_get_latency(s)); + pa_tagstruct_put_usec(t, pa_sink_get_latency(s->sink)); + pa_tagstruct_puts(t, pa_resample_method_to_string(pa_sink_input_get_resample_method(s))); + pa_tagstruct_puts(t, s->driver); +} + +static void source_output_fill_tagstruct(pa_tagstruct *t, pa_source_output *s) { + assert(t && s); + pa_tagstruct_putu32(t, s->index); + pa_tagstruct_puts(t, s->name); + pa_tagstruct_putu32(t, s->owner ? s->owner->index : PA_INVALID_INDEX); + pa_tagstruct_putu32(t, s->client ? s->client->index : PA_INVALID_INDEX); + pa_tagstruct_putu32(t, s->source->index); + pa_tagstruct_put_sample_spec(t, &s->sample_spec); + pa_tagstruct_put_channel_map(t, &s->channel_map); + pa_tagstruct_put_usec(t, pa_source_output_get_latency(s)); + pa_tagstruct_put_usec(t, pa_source_get_latency(s->source)); + pa_tagstruct_puts(t, pa_resample_method_to_string(pa_source_output_get_resample_method(s))); + pa_tagstruct_puts(t, s->driver); +} + +static void scache_fill_tagstruct(pa_tagstruct *t, pa_scache_entry *e) { + assert(t && e); + pa_tagstruct_putu32(t, e->index); + pa_tagstruct_puts(t, e->name); + pa_tagstruct_put_cvolume(t, &e->volume); + pa_tagstruct_put_usec(t, pa_bytes_to_usec(e->memchunk.length, &e->sample_spec)); + pa_tagstruct_put_sample_spec(t, &e->sample_spec); + pa_tagstruct_put_channel_map(t, &e->channel_map); + pa_tagstruct_putu32(t, e->memchunk.length); + pa_tagstruct_put_boolean(t, e->lazy); + pa_tagstruct_puts(t, e->filename); +} + +static void command_get_info(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_client *client = NULL; + pa_module *module = NULL; + pa_sink_input *si = NULL; + pa_source_output *so = NULL; + pa_scache_entry *sce = NULL; + const char *name; + pa_tagstruct *reply; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command != PA_COMMAND_GET_CLIENT_INFO && + command != PA_COMMAND_GET_MODULE_INFO && + command != PA_COMMAND_GET_SINK_INPUT_INFO && + command != PA_COMMAND_GET_SOURCE_OUTPUT_INFO && + pa_tagstruct_gets(t, &name) < 0) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_GET_SINK_INFO) { + if (idx != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + } else if (command == PA_COMMAND_GET_SOURCE_INFO) { + if (idx != PA_INVALID_INDEX) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + } else if (command == PA_COMMAND_GET_CLIENT_INFO) + client = pa_idxset_get_by_index(c->protocol->core->clients, idx); + else if (command == PA_COMMAND_GET_MODULE_INFO) + module = pa_idxset_get_by_index(c->protocol->core->modules, idx); + else if (command == PA_COMMAND_GET_SINK_INPUT_INFO) + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO) + so = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + else { + assert(command == PA_COMMAND_GET_SAMPLE_INFO); + if (idx != PA_INVALID_INDEX) + sce = pa_idxset_get_by_index(c->protocol->core->scache, idx); + else + sce = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SAMPLE, 0); + } + + if (!sink && !source && !client && !module && !si && !so && !sce) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_NOENTITY); + return; + } + + reply = reply_new(tag); + if (sink) + sink_fill_tagstruct(reply, sink); + else if (source) + source_fill_tagstruct(reply, source); + else if (client) + client_fill_tagstruct(reply, client); + else if (module) + module_fill_tagstruct(reply, module); + else if (si) + sink_input_fill_tagstruct(reply, si); + else if (so) + source_output_fill_tagstruct(reply, so); + else + scache_fill_tagstruct(reply, sce); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_info_list(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_idxset *i; + uint32_t idx; + void *p; + pa_tagstruct *reply; + assert(c && t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + + if (command == PA_COMMAND_GET_SINK_INFO_LIST) + i = c->protocol->core->sinks; + else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) + i = c->protocol->core->sources; + else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) + i = c->protocol->core->clients; + else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) + i = c->protocol->core->modules; + else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) + i = c->protocol->core->sink_inputs; + else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) + i = c->protocol->core->source_outputs; + else { + assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); + i = c->protocol->core->scache; + } + + if (i) { + for (p = pa_idxset_first(i, &idx); p; p = pa_idxset_next(i, &idx)) { + if (command == PA_COMMAND_GET_SINK_INFO_LIST) + sink_fill_tagstruct(reply, p); + else if (command == PA_COMMAND_GET_SOURCE_INFO_LIST) + source_fill_tagstruct(reply, p); + else if (command == PA_COMMAND_GET_CLIENT_INFO_LIST) + client_fill_tagstruct(reply, p); + else if (command == PA_COMMAND_GET_MODULE_INFO_LIST) + module_fill_tagstruct(reply, p); + else if (command == PA_COMMAND_GET_SINK_INPUT_INFO_LIST) + sink_input_fill_tagstruct(reply, p); + else if (command == PA_COMMAND_GET_SOURCE_OUTPUT_INFO_LIST) + source_output_fill_tagstruct(reply, p); + else { + assert(command == PA_COMMAND_GET_SAMPLE_INFO_LIST); + scache_fill_tagstruct(reply, p); + } + } + } + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_server_info(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_tagstruct *reply; + char txt[256]; + const char *n; + assert(c && t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + pa_tagstruct_puts(reply, PACKAGE_NAME); + pa_tagstruct_puts(reply, PACKAGE_VERSION); + pa_tagstruct_puts(reply, pa_get_user_name(txt, sizeof(txt))); + pa_tagstruct_puts(reply, pa_get_fqdn(txt, sizeof(txt))); + pa_tagstruct_put_sample_spec(reply, &c->protocol->core->default_sample_spec); + + n = pa_namereg_get_default_sink_name(c->protocol->core); + pa_tagstruct_puts(reply, n); + n = pa_namereg_get_default_source_name(c->protocol->core); + pa_tagstruct_puts(reply, n); + + pa_tagstruct_putu32(reply, c->protocol->core->cookie); + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void subscription_cb(pa_core *core, pa_subscription_event_type_t e, uint32_t idx, void *userdata) { + pa_tagstruct *t; + struct connection *c = userdata; + assert(c && core); + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_SUBSCRIBE_EVENT); + pa_tagstruct_putu32(t, (uint32_t) -1); + pa_tagstruct_putu32(t, e); + pa_tagstruct_putu32(t, idx); + pa_pstream_send_tagstruct(c->pstream, t); +} + +static void command_subscribe(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_subscription_mask_t m; + assert(c && t); + + if (pa_tagstruct_getu32(t, &m) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, (m & ~PA_SUBSCRIPTION_MASK_ALL) == 0, tag, PA_ERR_INVALID); + + if (c->subscription) + pa_subscription_free(c->subscription); + + if (m != 0) { + c->subscription = pa_subscription_new(c->protocol->core, m, subscription_cb, c); + assert(c->subscription); + } else + c->subscription = NULL; + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_volume( + PA_GCC_UNUSED pa_pdispatch *pd, + uint32_t command, + uint32_t tag, + pa_tagstruct *t, + void *userdata) { + + struct connection *c = userdata; + uint32_t idx; + pa_cvolume volume; + pa_sink *sink = NULL; + pa_source *source = NULL; + pa_sink_input *si = NULL; + const char *name = NULL; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + (command == PA_COMMAND_SET_SINK_VOLUME && pa_tagstruct_gets(t, &name) < 0) || + (command == PA_COMMAND_SET_SOURCE_VOLUME && pa_tagstruct_gets(t, &name) < 0) || + pa_tagstruct_get_cvolume(t, &volume) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, pa_cvolume_valid(&volume), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SET_SINK_VOLUME) { + if (idx != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + } else if (command == PA_COMMAND_SET_SOURCE_VOLUME) { + if (idx != (uint32_t) -1) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + } else { + assert(command == PA_COMMAND_SET_SINK_INPUT_VOLUME); + si = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + } + + CHECK_VALIDITY(c->pstream, si || sink || source, tag, PA_ERR_NOENTITY); + + if (sink) + pa_sink_set_volume(sink, PA_MIXER_HARDWARE, &volume); + else if (source) + pa_source_set_volume(source, PA_MIXER_HARDWARE, &volume); + else if (si) + pa_sink_input_set_volume(si, &volume); + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_mute( + PA_GCC_UNUSED pa_pdispatch *pd, + uint32_t command, + uint32_t tag, + pa_tagstruct *t, + void *userdata) { + + struct connection *c = userdata; + uint32_t idx; + int mute; + pa_sink *sink = NULL; + pa_source *source = NULL; + const char *name = NULL; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_get_boolean(t, &mute) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX || !name || (*name && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SET_SINK_MUTE) { + if (idx != PA_INVALID_INDEX) + sink = pa_idxset_get_by_index(c->protocol->core->sinks, idx); + else + sink = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SINK, 1); + } else { + assert(command == PA_COMMAND_SET_SOURCE_MUTE); + if (idx != (uint32_t) -1) + source = pa_idxset_get_by_index(c->protocol->core->sources, idx); + else + source = pa_namereg_get(c->protocol->core, name, PA_NAMEREG_SOURCE, 1); + } + + CHECK_VALIDITY(c->pstream, sink || source, tag, PA_ERR_NOENTITY); + + if (sink) + pa_sink_set_mute(sink, PA_MIXER_HARDWARE, mute); + else if (source) + pa_source_set_mute(source, PA_MIXER_HARDWARE, mute); + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_cork_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + int b; + struct playback_stream *s, *ssync; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); + + pa_sink_input_cork(s->sink_input, b); + pa_memblockq_prebuf_force(s->memblockq); + + /* Do the same for all other members in the sync group */ + for (ssync = s->prev; ssync; ssync = ssync->prev) { + pa_sink_input_cork(ssync->sink_input, b); + pa_memblockq_prebuf_force(ssync->memblockq); + } + + for (ssync = s->next; ssync; ssync = ssync->next) { + pa_sink_input_cork(ssync->sink_input, b); + pa_memblockq_prebuf_force(ssync->memblockq); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_flush_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + struct playback_stream *s, *ssync; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); + + pa_memblockq_flush(s->memblockq); + s->underrun = 0; + + /* Do the same for all other members in the sync group */ + for (ssync = s->prev; ssync; ssync = ssync->prev) { + pa_memblockq_flush(ssync->memblockq); + ssync->underrun = 0; + } + + for (ssync = s->next; ssync; ssync = ssync->next) { + pa_memblockq_flush(ssync->memblockq); + ssync->underrun = 0; + } + + pa_pstream_send_simple_ack(c->pstream, tag); + pa_sink_notify(s->sink_input->sink); + request_bytes(s); + + for (ssync = s->prev; ssync; ssync = ssync->prev) + request_bytes(ssync); + + for (ssync = s->next; ssync; ssync = ssync->next) + request_bytes(ssync); +} + +static void command_trigger_or_prebuf_playback_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + struct playback_stream *s; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, idx != PA_INVALID_INDEX, tag, PA_ERR_INVALID); + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); + + switch (command) { + case PA_COMMAND_PREBUF_PLAYBACK_STREAM: + pa_memblockq_prebuf_force(s->memblockq); + break; + + case PA_COMMAND_TRIGGER_PLAYBACK_STREAM: + pa_memblockq_prebuf_disable(s->memblockq); + break; + + default: + abort(); + } + + pa_sink_notify(s->sink_input->sink); + pa_pstream_send_simple_ack(c->pstream, tag); + request_bytes(s); +} + +static void command_cork_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + struct record_stream *s; + int b; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_get_boolean(t, &b) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_source_output_cork(s->source_output, b); + pa_memblockq_prebuf_force(s->memblockq); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_flush_record_stream(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + struct record_stream *s; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_memblockq_flush(s->memblockq); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_default_sink_or_source(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const char *s; + assert(c && t); + + if (pa_tagstruct_gets(t, &s) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, !s || (*s && pa_utf8_valid(s)), tag, PA_ERR_INVALID); + + pa_namereg_set_default(c->protocol->core, s, command == PA_COMMAND_SET_DEFAULT_SOURCE ? PA_NAMEREG_SOURCE : PA_NAMEREG_SINK); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_set_stream_name(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + const char *name; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + pa_tagstruct_gets(t, &name) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + + if (command == PA_COMMAND_SET_PLAYBACK_STREAM_NAME) { + struct playback_stream *s; + + s = pa_idxset_get_by_index(c->output_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + CHECK_VALIDITY(c->pstream, s->type == PLAYBACK_STREAM, tag, PA_ERR_NOENTITY); + + pa_sink_input_set_name(s->sink_input, name); + + } else { + struct record_stream *s; + + s = pa_idxset_get_by_index(c->record_streams, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_source_output_set_name(s->source_output, name); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_kill(PA_GCC_UNUSED pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + if (command == PA_COMMAND_KILL_CLIENT) { + pa_client *client; + + client = pa_idxset_get_by_index(c->protocol->core->clients, idx); + CHECK_VALIDITY(c->pstream, client, tag, PA_ERR_NOENTITY); + pa_client_kill(client); + + } else if (command == PA_COMMAND_KILL_SINK_INPUT) { + pa_sink_input *s; + + s = pa_idxset_get_by_index(c->protocol->core->sink_inputs, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_sink_input_kill(s); + } else { + pa_source_output *s; + + assert(command == PA_COMMAND_KILL_SOURCE_OUTPUT); + + s = pa_idxset_get_by_index(c->protocol->core->source_outputs, idx); + CHECK_VALIDITY(c->pstream, s, tag, PA_ERR_NOENTITY); + + pa_source_output_kill(s); + } + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_load_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_module *m; + const char *name, *argument; + pa_tagstruct *reply; + assert(c && t); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_gets(t, &argument) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name) && !strchr(name, '/'), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID); + + if (!(m = pa_module_load(c->protocol->core, name, argument))) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_MODINITFAILED); + return; + } + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, m->index); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_unload_module(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + uint32_t idx; + pa_module *m; + assert(c && t); + + if (pa_tagstruct_getu32(t, &idx) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + m = pa_idxset_get_by_index(c->protocol->core->modules, idx); + CHECK_VALIDITY(c->pstream, m, tag, PA_ERR_NOENTITY); + + pa_module_unload_request(m); + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void command_add_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const char *name, *module, *argument; + uint32_t type; + uint32_t idx; + pa_tagstruct *reply; + assert(c && t); + + if (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_getu32(t, &type) < 0 || + pa_tagstruct_gets(t, &module) < 0 || + pa_tagstruct_gets(t, &argument) < 0 || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name && *name && pa_utf8_valid(name), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, type == 0 || type == 1, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, module && *module && pa_utf8_valid(module), tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !argument || pa_utf8_valid(argument), tag, PA_ERR_INVALID); + + if (pa_autoload_add(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE, module, argument, &idx) < 0) { + pa_pstream_send_error(c->pstream, tag, PA_ERR_EXIST); + return; + } + + reply = reply_new(tag); + pa_tagstruct_putu32(reply, idx); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_remove_autoload(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const char *name = NULL; + uint32_t type, idx = PA_IDXSET_INVALID; + int r; + assert(c && t); + + if ((pa_tagstruct_getu32(t, &idx) < 0 && + (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_getu32(t, &type) < 0)) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !name || (*name && pa_utf8_valid(name) && (type == 0 || type == 1)), tag, PA_ERR_INVALID); + + if (name) + r = pa_autoload_remove_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE); + else + r = pa_autoload_remove_by_index(c->protocol->core, idx); + + CHECK_VALIDITY(c->pstream, r >= 0, tag, PA_ERR_NOENTITY); + + pa_pstream_send_simple_ack(c->pstream, tag); +} + +static void autoload_fill_tagstruct(pa_tagstruct *t, const pa_autoload_entry *e) { + assert(t && e); + + pa_tagstruct_putu32(t, e->index); + pa_tagstruct_puts(t, e->name); + pa_tagstruct_putu32(t, e->type == PA_NAMEREG_SINK ? 0 : 1); + pa_tagstruct_puts(t, e->module); + pa_tagstruct_puts(t, e->argument); +} + +static void command_get_autoload_info(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + const pa_autoload_entry *a = NULL; + uint32_t type, idx; + const char *name; + pa_tagstruct *reply; + assert(c && t); + + if ((pa_tagstruct_getu32(t, &idx) < 0 && + (pa_tagstruct_gets(t, &name) < 0 || + pa_tagstruct_getu32(t, &type) < 0)) || + !pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + CHECK_VALIDITY(c->pstream, name || idx != PA_IDXSET_INVALID, tag, PA_ERR_INVALID); + CHECK_VALIDITY(c->pstream, !name || (*name && (type == 0 || type == 1) && pa_utf8_valid(name)), tag, PA_ERR_INVALID); + + if (name) + a = pa_autoload_get_by_name(c->protocol->core, name, type == 0 ? PA_NAMEREG_SINK : PA_NAMEREG_SOURCE); + else + a = pa_autoload_get_by_index(c->protocol->core, idx); + + CHECK_VALIDITY(c->pstream, a, tag, PA_ERR_NOENTITY); + + reply = reply_new(tag); + autoload_fill_tagstruct(reply, a); + pa_pstream_send_tagstruct(c->pstream, reply); +} + +static void command_get_autoload_info_list(PA_GCC_UNUSED pa_pdispatch *pd, PA_GCC_UNUSED uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + struct connection *c = userdata; + pa_tagstruct *reply; + assert(c && t); + + if (!pa_tagstruct_eof(t)) { + protocol_error(c); + return; + } + + CHECK_VALIDITY(c->pstream, c->authorized, tag, PA_ERR_ACCESS); + + reply = reply_new(tag); + + if (c->protocol->core->autoload_hashmap) { + pa_autoload_entry *a; + void *state = NULL; + + while ((a = pa_hashmap_iterate(c->protocol->core->autoload_hashmap, &state, NULL))) + autoload_fill_tagstruct(reply, a); + } + + pa_pstream_send_tagstruct(c->pstream, reply); +} + +/*** pstream callbacks ***/ + +static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const void *creds, void *userdata) { + struct connection *c = userdata; + assert(p && packet && packet->data && c); + + if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) { + pa_log(__FILE__": invalid packet."); + connection_free(c); + } +} + +static void pstream_memblock_callback(pa_pstream *p, uint32_t channel, int64_t offset, pa_seek_mode_t seek, const pa_memchunk *chunk, void *userdata) { + struct connection *c = userdata; + struct output_stream *stream; + assert(p && chunk && userdata); + + if (!(stream = pa_idxset_get_by_index(c->output_streams, channel))) { + pa_log(__FILE__": client sent block for invalid stream."); + connection_free(c); + return; + } + + if (stream->type == PLAYBACK_STREAM) { + struct playback_stream *ps = (struct playback_stream*) stream; + if (chunk->length >= ps->requested_bytes) + ps->requested_bytes = 0; + else + ps->requested_bytes -= chunk->length; + + pa_memblockq_seek(ps->memblockq, offset, seek); + + if (pa_memblockq_push_align(ps->memblockq, chunk) < 0) { + pa_tagstruct *t; + + pa_log_warn(__FILE__": failed to push data into queue"); + + /* Pushing this block into the queue failed, so we simulate + * it by skipping ahead */ + + pa_memblockq_seek(ps->memblockq, chunk->length, PA_SEEK_RELATIVE); + + /* Notify the user */ + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, PA_COMMAND_OVERFLOW); + pa_tagstruct_putu32(t, (uint32_t) -1); /* tag */ + pa_tagstruct_putu32(t, ps->index); + pa_pstream_send_tagstruct(p, t); + } + + ps->underrun = 0; + + pa_sink_notify(ps->sink_input->sink); + + } else { + struct upload_stream *u = (struct upload_stream*) stream; + size_t l; + assert(u->type == UPLOAD_STREAM); + + if (!u->memchunk.memblock) { + if (u->length == chunk->length) { + u->memchunk = *chunk; + pa_memblock_ref(u->memchunk.memblock); + u->length = 0; + } else { + u->memchunk.memblock = pa_memblock_new(u->length, c->protocol->core->memblock_stat); + u->memchunk.index = u->memchunk.length = 0; + } + } + + assert(u->memchunk.memblock); + + l = u->length; + if (l > chunk->length) + l = chunk->length; + + if (l > 0) { + memcpy((uint8_t*) u->memchunk.memblock->data + u->memchunk.index + u->memchunk.length, + (uint8_t*) chunk->memblock->data+chunk->index, l); + u->memchunk.length += l; + u->length -= l; + } + } +} + +static void pstream_die_callback(pa_pstream *p, void *userdata) { + struct connection *c = userdata; + assert(p && c); + connection_free(c); + +/* pa_log(__FILE__": connection died.");*/ +} + + +static void pstream_drain_callback(pa_pstream *p, void *userdata) { + struct connection *c = userdata; + assert(p && c); + + send_memblock(c); +} + +/*** client callbacks ***/ + +static void client_kill_cb(pa_client *c) { + assert(c && c->userdata); + connection_free(c->userdata); +} + +/*** socket server callbacks ***/ + +static void auth_timeout(pa_mainloop_api*m, pa_time_event *e, const struct timeval *tv, void *userdata) { + struct connection *c = userdata; + assert(m && tv && c && c->auth_timeout_event == e); + + if (!c->authorized) + connection_free(c); +} + +static void on_connection(PA_GCC_UNUSED pa_socket_server*s, pa_iochannel *io, void *userdata) { + pa_protocol_native *p = userdata; + struct connection *c; + char cname[256], pname[128]; + assert(io && p); + + if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { + pa_log_warn(__FILE__": Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_iochannel_free(io); + return; + } + + c = pa_xmalloc(sizeof(struct connection)); + + c->authorized =!! p->public; + + if (!c->authorized) { + struct timeval tv; + pa_gettimeofday(&tv); + tv.tv_sec += AUTH_TIMEOUT; + c->auth_timeout_event = p->core->mainloop->time_new(p->core->mainloop, &tv, auth_timeout, c); + } else + c->auth_timeout_event = NULL; + + c->version = 8; + c->protocol = p; + pa_iochannel_socket_peer_to_string(io, pname, sizeof(pname)); + snprintf(cname, sizeof(cname), "Native client (%s)", pname); + assert(p->core); + c->client = pa_client_new(p->core, __FILE__, cname); + assert(c->client); + c->client->kill = client_kill_cb; + c->client->userdata = c; + c->client->owner = p->module; + + c->pstream = pa_pstream_new(p->core->mainloop, io, p->core->memblock_stat); + assert(c->pstream); + + pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c); + pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c); + pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c); + pa_pstream_set_drain_callback(c->pstream, pstream_drain_callback, c); + + c->pdispatch = pa_pdispatch_new(p->core->mainloop, command_table, PA_COMMAND_MAX); + assert(c->pdispatch); + + c->record_streams = pa_idxset_new(NULL, NULL); + c->output_streams = pa_idxset_new(NULL, NULL); + assert(c->record_streams && c->output_streams); + + c->rrobin_index = PA_IDXSET_INVALID; + c->subscription = NULL; + + pa_idxset_put(p->connections, c, NULL); + + +#ifdef SCM_CREDENTIALS + if (pa_iochannel_creds_supported(io)) + pa_iochannel_creds_enable(io); + +#endif +} + +/*** module entry points ***/ + +static int load_key(pa_protocol_native*p, const char*fn) { + assert(p); + + p->auth_cookie_in_property = 0; + + if (!fn && pa_authkey_prop_get(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) { + pa_log_info(__FILE__": using already loaded auth cookie."); + pa_authkey_prop_ref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME); + p->auth_cookie_in_property = 1; + return 0; + } + + if (!fn) + fn = PA_NATIVE_COOKIE_FILE; + + if (pa_authkey_load_auto(fn, p->auth_cookie, sizeof(p->auth_cookie)) < 0) + return -1; + + pa_log_info(__FILE__": loading cookie from disk."); + + if (pa_authkey_prop_put(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME, p->auth_cookie, sizeof(p->auth_cookie)) >= 0) + p->auth_cookie_in_property = 1; + + return 0; +} + +static pa_protocol_native* protocol_new_internal(pa_core *c, pa_module *m, pa_modargs *ma) { + pa_protocol_native *p; + int public = 0; + assert(c && ma); + + if (pa_modargs_get_value_boolean(ma, "auth-anonymous", &public) < 0) { + pa_log(__FILE__": auth-anonymous= expects a boolean argument."); + return NULL; + } + + p = pa_xnew(pa_protocol_native, 1); + p->core = c; + p->module = m; + p->public = public; + p->server = NULL; + +#ifdef SCM_CREDENTIALS + p->auth_group = pa_xstrdup(pa_modargs_get_value(ma, "auth-group", NULL)); +#endif + + if (load_key(p, pa_modargs_get_value(ma, "cookie", NULL)) < 0) { + pa_xfree(p); + return NULL; + } + + p->connections = pa_idxset_new(NULL, NULL); + assert(p->connections); + + return p; +} + +pa_protocol_native* pa_protocol_native_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma) { + char t[256]; + pa_protocol_native *p; + + if (!(p = protocol_new_internal(core, m, ma))) + return NULL; + + p->server = server; + pa_socket_server_set_callback(p->server, on_connection, p); + + if (pa_socket_server_get_address(p->server, t, sizeof(t))) { + pa_strlist *l; + l = pa_property_get(core, PA_NATIVE_SERVER_PROPERTY_NAME); + l = pa_strlist_prepend(l, t); + pa_property_replace(core, PA_NATIVE_SERVER_PROPERTY_NAME, l); + } + + return p; +} + +void pa_protocol_native_free(pa_protocol_native *p) { + struct connection *c; + assert(p); + + while ((c = pa_idxset_first(p->connections, NULL))) + connection_free(c); + pa_idxset_free(p->connections, NULL, NULL); + + if (p->server) { + char t[256]; + + if (pa_socket_server_get_address(p->server, t, sizeof(t))) { + pa_strlist *l; + l = pa_property_get(p->core, PA_NATIVE_SERVER_PROPERTY_NAME); + l = pa_strlist_remove(l, t); + + if (l) + pa_property_replace(p->core, PA_NATIVE_SERVER_PROPERTY_NAME, l); + else + pa_property_remove(p->core, PA_NATIVE_SERVER_PROPERTY_NAME); + } + + pa_socket_server_unref(p->server); + } + + if (p->auth_cookie_in_property) + pa_authkey_prop_unref(p->core, PA_NATIVE_COOKIE_PROPERTY_NAME); + +#ifdef SCM_CREDENTIALS + pa_xfree(p->auth_group); +#endif + pa_xfree(p); +} + +pa_protocol_native* pa_protocol_native_new_iochannel(pa_core*core, pa_iochannel *io, pa_module *m, pa_modargs *ma) { + pa_protocol_native *p; + + if (!(p = protocol_new_internal(core, m, ma))) + return NULL; + + on_connection(NULL, io, p); + + return p; +} diff --git a/src/pulsecore/protocol-native.h b/src/pulsecore/protocol-native.h new file mode 100644 index 00000000..5b091014 --- /dev/null +++ b/src/pulsecore/protocol-native.h @@ -0,0 +1,37 @@ +#ifndef fooprotocolnativehfoo +#define fooprotocolnativehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/core.h> +#include <pulsecore/socket-server.h> +#include <pulsecore/module.h> +#include <pulsecore/modargs.h> + +typedef struct pa_protocol_native pa_protocol_native; + +pa_protocol_native* pa_protocol_native_new(pa_core*core, pa_socket_server *server, pa_module *m, pa_modargs *ma); +void pa_protocol_native_free(pa_protocol_native *n); + +pa_protocol_native* pa_protocol_native_new_iochannel(pa_core*core, pa_iochannel *io, pa_module *m, pa_modargs *ma); + +#endif diff --git a/src/pulsecore/protocol-simple.c b/src/pulsecore/protocol-simple.c new file mode 100644 index 00000000..4d73bd24 --- /dev/null +++ b/src/pulsecore/protocol-simple.c @@ -0,0 +1,494 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdlib.h> +#include <limits.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/sink-input.h> +#include <pulsecore/source-output.h> +#include <pulsecore/client.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/namereg.h> +#include <pulsecore/log.h> +#include <pulsecore/core-error.h> + +#include "protocol-simple.h" + +/* Don't allow more than this many concurrent connections */ +#define MAX_CONNECTIONS 10 + +struct connection { + pa_protocol_simple *protocol; + pa_iochannel *io; + pa_sink_input *sink_input; + pa_source_output *source_output; + pa_client *client; + pa_memblockq *input_memblockq, *output_memblockq; + pa_defer_event *defer_event; + + int dead; + + struct { + pa_memblock *current_memblock; + size_t memblock_index, fragment_size; + } playback; +}; + +struct pa_protocol_simple { + pa_module *module; + pa_core *core; + pa_socket_server*server; + pa_idxset *connections; + enum { + RECORD = 1, + PLAYBACK = 2, + DUPLEX = 3 + } mode; + pa_sample_spec sample_spec; + char *source_name, *sink_name; +}; + +#define PLAYBACK_BUFFER_SECONDS (.5) +#define PLAYBACK_BUFFER_FRAGMENTS (10) +#define RECORD_BUFFER_SECONDS (5) +#define RECORD_BUFFER_FRAGMENTS (100) + +static void connection_free(struct connection *c) { + assert(c); + + pa_idxset_remove_by_data(c->protocol->connections, c, NULL); + + if (c->playback.current_memblock) + pa_memblock_unref(c->playback.current_memblock); + if (c->sink_input) { + pa_sink_input_disconnect(c->sink_input); + pa_sink_input_unref(c->sink_input); + } + if (c->source_output) { + pa_source_output_disconnect(c->source_output); + pa_source_output_unref(c->source_output); + } + if (c->client) + pa_client_free(c->client); + if (c->io) + pa_iochannel_free(c->io); + if (c->input_memblockq) + pa_memblockq_free(c->input_memblockq); + if (c->output_memblockq) + pa_memblockq_free(c->output_memblockq); + if (c->defer_event) + c->protocol->core->mainloop->defer_free(c->defer_event); + pa_xfree(c); +} + +static int do_read(struct connection *c) { + pa_memchunk chunk; + ssize_t r; + size_t l; + + if (!c->sink_input || !(l = pa_memblockq_missing(c->input_memblockq))) + return 0; + + if (l > c->playback.fragment_size) + l = c->playback.fragment_size; + + if (c->playback.current_memblock) + if (c->playback.current_memblock->length - c->playback.memblock_index < l) { + pa_memblock_unref(c->playback.current_memblock); + c->playback.current_memblock = NULL; + c->playback.memblock_index = 0; + } + + if (!c->playback.current_memblock) { + c->playback.current_memblock = pa_memblock_new(c->playback.fragment_size*2, c->protocol->core->memblock_stat); + assert(c->playback.current_memblock && c->playback.current_memblock->length >= l); + c->playback.memblock_index = 0; + } + + if ((r = pa_iochannel_read(c->io, (uint8_t*) c->playback.current_memblock->data+c->playback.memblock_index, l)) <= 0) { + pa_log_debug(__FILE__": read(): %s", r == 0 ? "EOF" : pa_cstrerror(errno)); + return -1; + } + + chunk.memblock = c->playback.current_memblock; + chunk.index = c->playback.memblock_index; + chunk.length = r; + assert(chunk.memblock); + + c->playback.memblock_index += r; + + assert(c->input_memblockq); + pa_memblockq_push_align(c->input_memblockq, &chunk); + assert(c->sink_input); + pa_sink_notify(c->sink_input->sink); + + return 0; +} + +static int do_write(struct connection *c) { + pa_memchunk chunk; + ssize_t r; + + if (!c->source_output) + return 0; + + assert(c->output_memblockq); + if (pa_memblockq_peek(c->output_memblockq, &chunk) < 0) + return 0; + + assert(chunk.memblock && chunk.length); + + if ((r = pa_iochannel_write(c->io, (uint8_t*) chunk.memblock->data+chunk.index, chunk.length)) < 0) { + pa_memblock_unref(chunk.memblock); + pa_log(__FILE__": write(): %s", pa_cstrerror(errno)); + return -1; + } + + pa_memblockq_drop(c->output_memblockq, &chunk, r); + pa_memblock_unref(chunk.memblock); + + pa_source_notify(c->source_output->source); + + return 0; +} + +static void do_work(struct connection *c) { + assert(c); + + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); + c->protocol->core->mainloop->defer_enable(c->defer_event, 0); + + if (c->dead) + return; + + if (pa_iochannel_is_readable(c->io)) { + if (do_read(c) < 0) + goto fail; + } else if (pa_iochannel_is_hungup(c->io)) + goto fail; + + if (pa_iochannel_is_writable(c->io)) { + if (do_write(c) < 0) + goto fail; + } + + return; + +fail: + + if (c->sink_input) { + c->dead = 1; + + pa_iochannel_free(c->io); + c->io = NULL; + + pa_memblockq_prebuf_disable(c->input_memblockq); + pa_sink_notify(c->sink_input->sink); + } else + connection_free(c); +} + +/*** sink_input callbacks ***/ + +static int sink_input_peek_cb(pa_sink_input *i, pa_memchunk *chunk) { + struct connection*c; + assert(i && i->userdata && chunk); + c = i->userdata; + + if (pa_memblockq_peek(c->input_memblockq, chunk) < 0) { + + if (c->dead) + connection_free(c); + + return -1; + } + + return 0; +} + +static void sink_input_drop_cb(pa_sink_input *i, const pa_memchunk *chunk, size_t length) { + struct connection*c = i->userdata; + assert(i && c && length); + + pa_memblockq_drop(c->input_memblockq, chunk, length); + + /* do something */ + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); + c->protocol->core->mainloop->defer_enable(c->defer_event, 1); +} + +static void sink_input_kill_cb(pa_sink_input *i) { + assert(i && i->userdata); + connection_free((struct connection *) i->userdata); +} + + +static pa_usec_t sink_input_get_latency_cb(pa_sink_input *i) { + struct connection*c = i->userdata; + assert(i && c); + return pa_bytes_to_usec(pa_memblockq_get_length(c->input_memblockq), &c->sink_input->sample_spec); +} + +/*** source_output callbacks ***/ + +static void source_output_push_cb(pa_source_output *o, const pa_memchunk *chunk) { + struct connection *c = o->userdata; + assert(o && c && chunk); + + pa_memblockq_push(c->output_memblockq, chunk); + + /* do something */ + assert(c->protocol && c->protocol->core && c->protocol->core->mainloop && c->protocol->core->mainloop->defer_enable); + c->protocol->core->mainloop->defer_enable(c->defer_event, 1); +} + +static void source_output_kill_cb(pa_source_output *o) { + assert(o && o->userdata); + connection_free((struct connection *) o->userdata); +} + +static pa_usec_t source_output_get_latency_cb(pa_source_output *o) { + struct connection*c = o->userdata; + assert(o && c); + return pa_bytes_to_usec(pa_memblockq_get_length(c->output_memblockq), &c->source_output->sample_spec); +} + +/*** client callbacks ***/ + +static void client_kill_cb(pa_client *c) { + assert(c && c->userdata); + connection_free((struct connection *) c->userdata); +} + +/*** pa_iochannel callbacks ***/ + +static void io_callback(pa_iochannel*io, void *userdata) { + struct connection *c = userdata; + assert(io && c && c->io == io); + + do_work(c); +} + +/*** fixed callback ***/ + +static void defer_callback(pa_mainloop_api*a, pa_defer_event *e, void *userdata) { + struct connection *c = userdata; + assert(a && c && c->defer_event == e); + + do_work(c); +} + +/*** socket_server callbacks ***/ + +static void on_connection(pa_socket_server*s, pa_iochannel *io, void *userdata) { + pa_protocol_simple *p = userdata; + struct connection *c = NULL; + char cname[256]; + assert(s && io && p); + + if (pa_idxset_size(p->connections)+1 > MAX_CONNECTIONS) { + pa_log(__FILE__": Warning! Too many connections (%u), dropping incoming connection.", MAX_CONNECTIONS); + pa_iochannel_free(io); + return; + } + + c = pa_xmalloc(sizeof(struct connection)); + c->io = io; + c->sink_input = NULL; + c->source_output = NULL; + c->defer_event = NULL; + c->input_memblockq = c->output_memblockq = NULL; + c->protocol = p; + c->playback.current_memblock = NULL; + c->playback.memblock_index = 0; + c->playback.fragment_size = 0; + c->dead = 0; + + pa_iochannel_socket_peer_to_string(io, cname, sizeof(cname)); + c->client = pa_client_new(p->core, __FILE__, cname); + assert(c->client); + c->client->owner = p->module; + c->client->kill = client_kill_cb; + c->client->userdata = c; + + if (p->mode & PLAYBACK) { + pa_sink *sink; + size_t l; + + if (!(sink = pa_namereg_get(p->core, p->sink_name, PA_NAMEREG_SINK, 1))) { + pa_log(__FILE__": Failed to get sink."); + goto fail; + } + + if (!(c->sink_input = pa_sink_input_new(sink, __FILE__, c->client->name, &p->sample_spec, NULL, NULL, 0, -1))) { + pa_log(__FILE__": Failed to create sink input."); + goto fail; + } + + c->sink_input->owner = p->module; + c->sink_input->client = c->client; + + c->sink_input->peek = sink_input_peek_cb; + c->sink_input->drop = sink_input_drop_cb; + c->sink_input->kill = sink_input_kill_cb; + c->sink_input->get_latency = sink_input_get_latency_cb; + c->sink_input->userdata = c; + + l = (size_t) (pa_bytes_per_second(&p->sample_spec)*PLAYBACK_BUFFER_SECONDS); + c->input_memblockq = pa_memblockq_new( + 0, + l, + 0, + pa_frame_size(&p->sample_spec), + (size_t) -1, + l/PLAYBACK_BUFFER_FRAGMENTS, + NULL, + p->core->memblock_stat); + assert(c->input_memblockq); + pa_iochannel_socket_set_rcvbuf(io, l/PLAYBACK_BUFFER_FRAGMENTS*5); + c->playback.fragment_size = l/10; + } + + if (p->mode & RECORD) { + pa_source *source; + size_t l; + + if (!(source = pa_namereg_get(p->core, p->source_name, PA_NAMEREG_SOURCE, 1))) { + pa_log(__FILE__": Failed to get source."); + goto fail; + } + + c->source_output = pa_source_output_new(source, __FILE__, c->client->name, &p->sample_spec, NULL, -1); + if (!c->source_output) { + pa_log(__FILE__": Failed to create source output."); + goto fail; + } + c->source_output->owner = p->module; + c->source_output->client = c->client; + + c->source_output->push = source_output_push_cb; + c->source_output->kill = source_output_kill_cb; + c->source_output->get_latency = source_output_get_latency_cb; + c->source_output->userdata = c; + + l = (size_t) (pa_bytes_per_second(&p->sample_spec)*RECORD_BUFFER_SECONDS); + c->output_memblockq = pa_memblockq_new( + 0, + l, + 0, + pa_frame_size(&p->sample_spec), + 1, + 0, + NULL, + p->core->memblock_stat); + pa_iochannel_socket_set_sndbuf(io, l/RECORD_BUFFER_FRAGMENTS*2); + } + + pa_iochannel_set_callback(c->io, io_callback, c); + pa_idxset_put(p->connections, c, NULL); + + c->defer_event = p->core->mainloop->defer_new(p->core->mainloop, defer_callback, c); + assert(c->defer_event); + p->core->mainloop->defer_enable(c->defer_event, 0); + + return; + +fail: + if (c) + connection_free(c); +} + +pa_protocol_simple* pa_protocol_simple_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma) { + pa_protocol_simple* p = NULL; + int enable; + assert(core && server && ma); + + p = pa_xmalloc0(sizeof(pa_protocol_simple)); + p->module = m; + p->core = core; + p->server = server; + p->connections = pa_idxset_new(NULL, NULL); + + p->sample_spec = core->default_sample_spec; + if (pa_modargs_get_sample_spec(ma, &p->sample_spec) < 0) { + pa_log(__FILE__": Failed to parse sample type specification."); + goto fail; + } + + p->source_name = pa_xstrdup(pa_modargs_get_value(ma, "source", NULL)); + p->sink_name = pa_xstrdup(pa_modargs_get_value(ma, "sink", NULL)); + + enable = 0; + if (pa_modargs_get_value_boolean(ma, "record", &enable) < 0) { + pa_log(__FILE__": record= expects a numeric argument."); + goto fail; + } + p->mode = enable ? RECORD : 0; + + enable = 1; + if (pa_modargs_get_value_boolean(ma, "playback", &enable) < 0) { + pa_log(__FILE__": playback= expects a numeric argument."); + goto fail; + } + p->mode |= enable ? PLAYBACK : 0; + + if ((p->mode & (RECORD|PLAYBACK)) == 0) { + pa_log(__FILE__": neither playback nor recording enabled for protocol."); + goto fail; + } + + pa_socket_server_set_callback(p->server, on_connection, p); + + return p; + +fail: + if (p) + pa_protocol_simple_free(p); + return NULL; +} + + +void pa_protocol_simple_free(pa_protocol_simple *p) { + struct connection *c; + assert(p); + + if (p->connections) { + while((c = pa_idxset_first(p->connections, NULL))) + connection_free(c); + + pa_idxset_free(p->connections, NULL, NULL); + } + + if (p->server) + pa_socket_server_unref(p->server); + pa_xfree(p); +} + diff --git a/src/pulsecore/protocol-simple.h b/src/pulsecore/protocol-simple.h new file mode 100644 index 00000000..8dfaee34 --- /dev/null +++ b/src/pulsecore/protocol-simple.h @@ -0,0 +1,35 @@ +#ifndef fooprotocolsimplehfoo +#define fooprotocolsimplehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/socket-server.h> +#include <pulsecore/module.h> +#include <pulsecore/core.h> +#include <pulsecore/modargs.h> + +typedef struct pa_protocol_simple pa_protocol_simple; + +pa_protocol_simple* pa_protocol_simple_new(pa_core *core, pa_socket_server *server, pa_module *m, pa_modargs *ma); +void pa_protocol_simple_free(pa_protocol_simple *n); + +#endif diff --git a/src/pulsecore/pstream-util.c b/src/pulsecore/pstream-util.c new file mode 100644 index 00000000..3a995324 --- /dev/null +++ b/src/pulsecore/pstream-util.c @@ -0,0 +1,62 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> + +#include <pulsecore/native-common.h> + +#include "pstream-util.h" + +void pa_pstream_send_tagstruct_with_creds(pa_pstream *p, pa_tagstruct *t, int creds) { + size_t length; + uint8_t *data; + pa_packet *packet; + assert(p); + assert(t); + + data = pa_tagstruct_free_data(t, &length); + assert(data && length); + packet = pa_packet_new_dynamic(data, length); + assert(packet); + pa_pstream_send_packet(p, packet, creds); + pa_packet_unref(packet); +} + +void pa_pstream_send_error(pa_pstream *p, uint32_t tag, uint32_t error) { + pa_tagstruct *t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_ERROR); + pa_tagstruct_putu32(t, tag); + pa_tagstruct_putu32(t, error); + pa_pstream_send_tagstruct(p, t); +} + +void pa_pstream_send_simple_ack(pa_pstream *p, uint32_t tag) { + pa_tagstruct *t = pa_tagstruct_new(NULL, 0); + assert(t); + pa_tagstruct_putu32(t, PA_COMMAND_REPLY); + pa_tagstruct_putu32(t, tag); + pa_pstream_send_tagstruct(p, t); +} diff --git a/src/pulsecore/pstream-util.h b/src/pulsecore/pstream-util.h new file mode 100644 index 00000000..fc6d18c0 --- /dev/null +++ b/src/pulsecore/pstream-util.h @@ -0,0 +1,37 @@ +#ifndef foopstreamutilhfoo +#define foopstreamutilhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> +#include <pulsecore/pstream.h> +#include <pulsecore/tagstruct.h> + +/* The tagstruct is freed!*/ +void pa_pstream_send_tagstruct_with_creds(pa_pstream *p, pa_tagstruct *t, int creds); + +#define pa_pstream_send_tagstruct(p, t) pa_pstream_send_tagstruct_with_creds((p), (t), 0) + +void pa_pstream_send_error(pa_pstream *p, uint32_t tag, uint32_t error); +void pa_pstream_send_simple_ack(pa_pstream *p, uint32_t tag); + +#endif diff --git a/src/pulsecore/pstream.c b/src/pulsecore/pstream.c new file mode 100644 index 00000000..60c05938 --- /dev/null +++ b/src/pulsecore/pstream.c @@ -0,0 +1,589 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> +#include <unistd.h> + +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif + +#include "winsock.h" + +#include <pulse/xmalloc.h> + +#include <pulsecore/queue.h> +#include <pulsecore/log.h> +#include <pulsecore/core-scache.h> + +#include "pstream.h" + +enum { + PA_PSTREAM_DESCRIPTOR_LENGTH, + PA_PSTREAM_DESCRIPTOR_CHANNEL, + PA_PSTREAM_DESCRIPTOR_OFFSET_HI, + PA_PSTREAM_DESCRIPTOR_OFFSET_LO, + PA_PSTREAM_DESCRIPTOR_SEEK, + PA_PSTREAM_DESCRIPTOR_MAX +}; + +typedef uint32_t pa_pstream_descriptor[PA_PSTREAM_DESCRIPTOR_MAX]; + +#define PA_PSTREAM_DESCRIPTOR_SIZE (PA_PSTREAM_DESCRIPTOR_MAX*sizeof(uint32_t)) +#define FRAME_SIZE_MAX PA_SCACHE_ENTRY_SIZE_MAX /* allow uploading a single sample in one frame at max */ + +struct item_info { + enum { PA_PSTREAM_ITEM_PACKET, PA_PSTREAM_ITEM_MEMBLOCK } type; + + /* memblock info */ + pa_memchunk chunk; + uint32_t channel; + int64_t offset; + pa_seek_mode_t seek_mode; + + /* packet info */ + pa_packet *packet; +#ifdef SCM_CREDENTIALS + int with_creds; +#endif +}; + +struct pa_pstream { + int ref; + + pa_mainloop_api *mainloop; + pa_defer_event *defer_event; + pa_iochannel *io; + pa_queue *send_queue; + + int dead; + + struct { + struct item_info* current; + pa_pstream_descriptor descriptor; + void *data; + size_t index; + } write; + + struct { + pa_memblock *memblock; + pa_packet *packet; + pa_pstream_descriptor descriptor; + void *data; + size_t index; + } read; + + pa_pstream_packet_cb_t recieve_packet_callback; + void *recieve_packet_callback_userdata; + + pa_pstream_memblock_cb_t recieve_memblock_callback; + void *recieve_memblock_callback_userdata; + + pa_pstream_notify_cb_t drain_callback; + void *drain_callback_userdata; + + pa_pstream_notify_cb_t die_callback; + void *die_callback_userdata; + + pa_memblock_stat *memblock_stat; + +#ifdef SCM_CREDENTIALS + int send_creds_now; + struct ucred ucred; + int creds_valid; +#endif +}; + +static int do_write(pa_pstream *p); +static int do_read(pa_pstream *p); + +static void do_something(pa_pstream *p) { + assert(p); + + p->mainloop->defer_enable(p->defer_event, 0); + + pa_pstream_ref(p); + + if (!p->dead && pa_iochannel_is_readable(p->io)) { + if (do_read(p) < 0) + goto fail; + } else if (!p->dead && pa_iochannel_is_hungup(p->io)) + goto fail; + + if (!p->dead && pa_iochannel_is_writable(p->io)) { + if (do_write(p) < 0) + goto fail; + } + + pa_pstream_unref(p); + return; + +fail: + + p->dead = 1; + + if (p->die_callback) + p->die_callback(p, p->die_callback_userdata); + + pa_pstream_unref(p); +} + +static void io_callback(pa_iochannel*io, void *userdata) { + pa_pstream *p = userdata; + + assert(p); + assert(p->io == io); + + do_something(p); +} + +static void defer_callback(pa_mainloop_api *m, pa_defer_event *e, void*userdata) { + pa_pstream *p = userdata; + + assert(p); + assert(p->defer_event == e); + assert(p->mainloop == m); + + do_something(p); +} + +pa_pstream *pa_pstream_new(pa_mainloop_api *m, pa_iochannel *io, pa_memblock_stat *s) { + pa_pstream *p; + assert(io); + + p = pa_xnew(pa_pstream, 1); + + p->ref = 1; + p->io = io; + pa_iochannel_set_callback(io, io_callback, p); + + p->dead = 0; + + p->mainloop = m; + p->defer_event = m->defer_new(m, defer_callback, p); + m->defer_enable(p->defer_event, 0); + + p->send_queue = pa_queue_new(); + assert(p->send_queue); + + p->write.current = NULL; + p->write.index = 0; + + p->read.memblock = NULL; + p->read.packet = NULL; + p->read.index = 0; + + p->recieve_packet_callback = NULL; + p->recieve_packet_callback_userdata = NULL; + + p->recieve_memblock_callback = NULL; + p->recieve_memblock_callback_userdata = NULL; + + p->drain_callback = NULL; + p->drain_callback_userdata = NULL; + + p->die_callback = NULL; + p->die_callback_userdata = NULL; + + p->memblock_stat = s; + + pa_iochannel_socket_set_rcvbuf(io, 1024*8); + pa_iochannel_socket_set_sndbuf(io, 1024*8); + +#ifdef SCM_CREDENTIALS + p->send_creds_now = 0; + p->creds_valid = 0; +#endif + return p; +} + +static void item_free(void *item, PA_GCC_UNUSED void *p) { + struct item_info *i = item; + assert(i); + + if (i->type == PA_PSTREAM_ITEM_MEMBLOCK) { + assert(i->chunk.memblock); + pa_memblock_unref(i->chunk.memblock); + } else { + assert(i->type == PA_PSTREAM_ITEM_PACKET); + assert(i->packet); + pa_packet_unref(i->packet); + } + + pa_xfree(i); +} + +static void pstream_free(pa_pstream *p) { + assert(p); + + pa_pstream_close(p); + + pa_queue_free(p->send_queue, item_free, NULL); + + if (p->write.current) + item_free(p->write.current, NULL); + + if (p->read.memblock) + pa_memblock_unref(p->read.memblock); + + if (p->read.packet) + pa_packet_unref(p->read.packet); + + pa_xfree(p); +} + +void pa_pstream_send_packet(pa_pstream*p, pa_packet *packet, int with_creds) { + struct item_info *i; + assert(p && packet && p->ref >= 1); + + if (p->dead) + return; + +/* pa_log(__FILE__": push-packet %p", packet); */ + + i = pa_xnew(struct item_info, 1); + i->type = PA_PSTREAM_ITEM_PACKET; + i->packet = pa_packet_ref(packet); +#ifdef SCM_CREDENTIALS + i->with_creds = with_creds; +#endif + + pa_queue_push(p->send_queue, i); + p->mainloop->defer_enable(p->defer_event, 1); +} + +void pa_pstream_send_memblock(pa_pstream*p, uint32_t channel, int64_t offset, pa_seek_mode_t seek_mode, const pa_memchunk *chunk) { + struct item_info *i; + assert(p && channel != (uint32_t) -1 && chunk && p->ref >= 1); + + if (p->dead) + return; + +/* pa_log(__FILE__": push-memblock %p", chunk); */ + + i = pa_xnew(struct item_info, 1); + i->type = PA_PSTREAM_ITEM_MEMBLOCK; + i->chunk = *chunk; + i->channel = channel; + i->offset = offset; + i->seek_mode = seek_mode; + + pa_memblock_ref(i->chunk.memblock); + + pa_queue_push(p->send_queue, i); + p->mainloop->defer_enable(p->defer_event, 1); +} + +static void prepare_next_write_item(pa_pstream *p) { + assert(p); + + if (!(p->write.current = pa_queue_pop(p->send_queue))) + return; + + p->write.index = 0; + + if (p->write.current->type == PA_PSTREAM_ITEM_PACKET) { + /*pa_log(__FILE__": pop-packet %p", p->write.current->packet);*/ + + assert(p->write.current->packet); + p->write.data = p->write.current->packet->data; + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = htonl(p->write.current->packet->length); + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL] = htonl((uint32_t) -1); + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI] = 0; + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO] = 0; + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK] = 0; + +#ifdef SCM_CREDENTIALS + p->send_creds_now = 1; +#endif + + } else { + assert(p->write.current->type == PA_PSTREAM_ITEM_MEMBLOCK && p->write.current->chunk.memblock); + p->write.data = (uint8_t*) p->write.current->chunk.memblock->data + p->write.current->chunk.index; + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH] = htonl(p->write.current->chunk.length); + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL] = htonl(p->write.current->channel); + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI] = htonl((uint32_t) (((uint64_t) p->write.current->offset) >> 32)); + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO] = htonl((uint32_t) ((uint64_t) p->write.current->offset)); + p->write.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK] = htonl(p->write.current->seek_mode); + +#ifdef SCM_CREDENTIALS + p->send_creds_now = 1; +#endif + } +} + +static int do_write(pa_pstream *p) { + void *d; + size_t l; + ssize_t r; + assert(p); + + if (!p->write.current) + prepare_next_write_item(p); + + if (!p->write.current) + return 0; + + assert(p->write.data); + + if (p->write.index < PA_PSTREAM_DESCRIPTOR_SIZE) { + d = (uint8_t*) p->write.descriptor + p->write.index; + l = PA_PSTREAM_DESCRIPTOR_SIZE - p->write.index; + } else { + d = (uint8_t*) p->write.data + p->write.index - PA_PSTREAM_DESCRIPTOR_SIZE; + l = ntohl(p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) - (p->write.index - PA_PSTREAM_DESCRIPTOR_SIZE); + } + +#ifdef SCM_CREDENTIALS + if (p->send_creds_now) { + + if ((r = pa_iochannel_write_with_creds(p->io, d, l)) < 0) + return -1; + + p->send_creds_now = 0; + } else +#endif + + if ((r = pa_iochannel_write(p->io, d, l)) < 0) + return -1; + + p->write.index += r; + + if (p->write.index >= PA_PSTREAM_DESCRIPTOR_SIZE+ntohl(p->write.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH])) { + assert(p->write.current); + item_free(p->write.current, (void *) 1); + p->write.current = NULL; + + if (p->drain_callback && !pa_pstream_is_pending(p)) + p->drain_callback(p, p->drain_callback_userdata); + } + + return 0; +} + +static int do_read(pa_pstream *p) { + void *d; + size_t l; + ssize_t r; + assert(p); + + if (p->read.index < PA_PSTREAM_DESCRIPTOR_SIZE) { + d = (uint8_t*) p->read.descriptor + p->read.index; + l = PA_PSTREAM_DESCRIPTOR_SIZE - p->read.index; + } else { + assert(p->read.data); + d = (uint8_t*) p->read.data + p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE; + l = ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) - (p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE); + } + +#ifdef SCM_CREDENTIALS + { + int b; + + if ((r = pa_iochannel_read_with_creds(p->io, d, l, &p->ucred, &b)) <= 0) + return -1; + + p->creds_valid = p->creds_valid || b; + } +#else + if ((r = pa_iochannel_read(p->io, d, l)) <= 0) + return -1; +#endif + + p->read.index += r; + + if (p->read.index == PA_PSTREAM_DESCRIPTOR_SIZE) { + /* Reading of frame descriptor complete */ + + /* Frame size too large */ + if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) > FRAME_SIZE_MAX) { + pa_log_warn(__FILE__": Frame size too large: %lu > %lu", (unsigned long) ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]), (unsigned long) FRAME_SIZE_MAX); + return -1; + } + + assert(!p->read.packet && !p->read.memblock); + + if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL]) == (uint32_t) -1) { + /* Frame is a packet frame */ + p->read.packet = pa_packet_new(ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH])); + p->read.data = p->read.packet->data; + } else { + /* Frame is a memblock frame */ + p->read.memblock = pa_memblock_new(ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]), p->memblock_stat); + p->read.data = p->read.memblock->data; + + if (ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK]) > PA_SEEK_RELATIVE_END) { + pa_log_warn(__FILE__": Invalid seek mode"); + return -1; + } + } + + } else if (p->read.index > PA_PSTREAM_DESCRIPTOR_SIZE) { + /* Frame payload available */ + + if (p->read.memblock && p->recieve_memblock_callback) { /* Is this memblock data? Than pass it to the user */ + l = (p->read.index - r) < PA_PSTREAM_DESCRIPTOR_SIZE ? p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE : (size_t) r; + + if (l > 0) { + pa_memchunk chunk; + + chunk.memblock = p->read.memblock; + chunk.index = p->read.index - PA_PSTREAM_DESCRIPTOR_SIZE - l; + chunk.length = l; + + if (p->recieve_memblock_callback) { + int64_t offset; + + offset = (int64_t) ( + (((uint64_t) ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI])) << 32) | + (((uint64_t) ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO])))); + + p->recieve_memblock_callback( + p, + ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_CHANNEL]), + offset, + ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK]), + &chunk, + p->recieve_memblock_callback_userdata); + } + + /* Drop seek info for following callbacks */ + p->read.descriptor[PA_PSTREAM_DESCRIPTOR_SEEK] = + p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_HI] = + p->read.descriptor[PA_PSTREAM_DESCRIPTOR_OFFSET_LO] = 0; + } + } + + /* Frame complete */ + if (p->read.index >= ntohl(p->read.descriptor[PA_PSTREAM_DESCRIPTOR_LENGTH]) + PA_PSTREAM_DESCRIPTOR_SIZE) { + if (p->read.memblock) { + assert(!p->read.packet); + + pa_memblock_unref(p->read.memblock); + p->read.memblock = NULL; + } else { + assert(p->read.packet); + + if (p->recieve_packet_callback) +#ifdef SCM_CREDENTIALS + p->recieve_packet_callback(p, p->read.packet, p->creds_valid ? &p->ucred : NULL, p->recieve_packet_callback_userdata); +#else + p->recieve_packet_callback(p, p->read.packet, NULL, p->recieve_packet_callback_userdata); +#endif + + pa_packet_unref(p->read.packet); + p->read.packet = NULL; + } + + p->read.index = 0; +#ifdef SCM_CREDENTIALS + p->creds_valid = 0; +#endif + } + } + + return 0; +} + +void pa_pstream_set_die_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata) { + assert(p); + assert(p->ref >= 1); + + p->die_callback = cb; + p->die_callback_userdata = userdata; +} + + +void pa_pstream_set_drain_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata) { + assert(p); + assert(p->ref >= 1); + + p->drain_callback = cb; + p->drain_callback_userdata = userdata; +} + +void pa_pstream_set_recieve_packet_callback(pa_pstream *p, pa_pstream_packet_cb_t cb, void *userdata) { + assert(p); + assert(p->ref >= 1); + + p->recieve_packet_callback = cb; + p->recieve_packet_callback_userdata = userdata; +} + +void pa_pstream_set_recieve_memblock_callback(pa_pstream *p, pa_pstream_memblock_cb_t cb, void *userdata) { + assert(p); + assert(p->ref >= 1); + + p->recieve_memblock_callback = cb; + p->recieve_memblock_callback_userdata = userdata; +} + +int pa_pstream_is_pending(pa_pstream *p) { + assert(p); + + if (p->dead) + return 0; + + return p->write.current || !pa_queue_is_empty(p->send_queue); +} + +void pa_pstream_unref(pa_pstream*p) { + assert(p); + assert(p->ref >= 1); + + if (--p->ref == 0) + pstream_free(p); +} + +pa_pstream* pa_pstream_ref(pa_pstream*p) { + assert(p); + assert(p->ref >= 1); + + p->ref++; + return p; +} + +void pa_pstream_close(pa_pstream *p) { + assert(p); + + p->dead = 1; + + if (p->io) { + pa_iochannel_free(p->io); + p->io = NULL; + } + + if (p->defer_event) { + p->mainloop->defer_free(p->defer_event); + p->defer_event = NULL; + } + + p->die_callback = NULL; + p->drain_callback = NULL; + p->recieve_packet_callback = NULL; + p->recieve_memblock_callback = NULL; +} diff --git a/src/pulsecore/pstream.h b/src/pulsecore/pstream.h new file mode 100644 index 00000000..1a2932d4 --- /dev/null +++ b/src/pulsecore/pstream.h @@ -0,0 +1,57 @@ +#ifndef foopstreamhfoo +#define foopstreamhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +#include <pulse/mainloop-api.h> +#include <pulse/def.h> +#include <pulsecore/packet.h> +#include <pulsecore/memblock.h> +#include <pulsecore/iochannel.h> +#include <pulsecore/memchunk.h> + +typedef struct pa_pstream pa_pstream; + +typedef void (*pa_pstream_packet_cb_t)(pa_pstream *p, pa_packet *packet, const void *creds, void *userdata); +typedef void (*pa_pstream_memblock_cb_t)(pa_pstream *p, uint32_t channel, int64_t offset, pa_seek_mode_t seek, const pa_memchunk *chunk, void *userdata); +typedef void (*pa_pstream_notify_cb_t)(pa_pstream *p, void *userdata); + +pa_pstream* pa_pstream_new(pa_mainloop_api *m, pa_iochannel *io, pa_memblock_stat *s); +void pa_pstream_unref(pa_pstream*p); +pa_pstream* pa_pstream_ref(pa_pstream*p); + +void pa_pstream_send_packet(pa_pstream*p, pa_packet *packet, int with_creds); +void pa_pstream_send_memblock(pa_pstream*p, uint32_t channel, int64_t offset, pa_seek_mode_t seek, const pa_memchunk *chunk); + +void pa_pstream_set_recieve_packet_callback(pa_pstream *p, pa_pstream_packet_cb_t cb, void *userdata); +void pa_pstream_set_recieve_memblock_callback(pa_pstream *p, pa_pstream_memblock_cb_t cb, void *userdata); +void pa_pstream_set_drain_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata); + +void pa_pstream_set_die_callback(pa_pstream *p, pa_pstream_notify_cb_t cb, void *userdata); + +int pa_pstream_is_pending(pa_pstream *p); + +void pa_pstream_close(pa_pstream *p); + +#endif diff --git a/src/pulsecore/queue.c b/src/pulsecore/queue.c new file mode 100644 index 00000000..93b119eb --- /dev/null +++ b/src/pulsecore/queue.c @@ -0,0 +1,109 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include "queue.h" + +struct queue_entry { + struct queue_entry *next; + void *data; +}; + +struct pa_queue { + struct queue_entry *front, *back; + unsigned length; +}; + +pa_queue* pa_queue_new(void) { + pa_queue *q = pa_xnew(pa_queue, 1); + q->front = q->back = NULL; + q->length = 0; + return q; +} + +void pa_queue_free(pa_queue* q, void (*destroy)(void *p, void *userdata), void *userdata) { + struct queue_entry *e; + assert(q); + + e = q->front; + while (e) { + struct queue_entry *n = e->next; + + if (destroy) + destroy(e->data, userdata); + + pa_xfree(e); + e = n; + } + + pa_xfree(q); +} + +void pa_queue_push(pa_queue *q, void *p) { + struct queue_entry *e; + + e = pa_xnew(struct queue_entry, 1); + e->data = p; + e->next = NULL; + + if (q->back) + q->back->next = e; + else { + assert(!q->front); + q->front = e; + } + + q->back = e; + q->length++; +} + +void* pa_queue_pop(pa_queue *q) { + void *p; + struct queue_entry *e; + assert(q); + + if (!(e = q->front)) + return NULL; + + q->front = e->next; + if (q->back == e) + q->back = NULL; + + p = e->data; + pa_xfree(e); + + q->length--; + + return p; +} + +int pa_queue_is_empty(pa_queue *q) { + assert(q); + return q->length == 0; +} diff --git a/src/pulsecore/queue.h b/src/pulsecore/queue.h new file mode 100644 index 00000000..3fb9dea4 --- /dev/null +++ b/src/pulsecore/queue.h @@ -0,0 +1,40 @@ +#ifndef fooqueuehfoo +#define fooqueuehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef struct pa_queue pa_queue; + +/* A simple implementation of the abstract data type queue. Stores + * pointers as members. The memory has to be managed by the caller. */ + +pa_queue* pa_queue_new(void); + +/* Free the queue and run the specified callback function for every remaining entry. The callback function may be NULL. */ +void pa_queue_free(pa_queue* q, void (*destroy)(void *p, void *userdata), void *userdata); + +void pa_queue_push(pa_queue *q, void *p); +void* pa_queue_pop(pa_queue *q); + +int pa_queue_is_empty(pa_queue *q); + +#endif diff --git a/src/pulsecore/random.c b/src/pulsecore/random.c new file mode 100644 index 00000000..3d3357a5 --- /dev/null +++ b/src/pulsecore/random.c @@ -0,0 +1,108 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <fcntl.h> +#include <unistd.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> +#include <assert.h> +#include <time.h> + +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> + +#include "random.h" + +static int has_whined = 0; + +static const char *devices[] = { "/dev/urandom", "/dev/random", NULL }; + +static int random_proper(void *ret_data, size_t length) { +#ifdef OS_IS_WIN32 + assert(ret_data && length); + + return -1; + +#else /* OS_IS_WIN32 */ + + int fd, ret = -1; + ssize_t r = 0; + const char **device; + + assert(ret_data && length); + + device = devices; + + while (*device) { + ret = 0; + + if ((fd = open(*device, O_RDONLY)) >= 0) { + + if ((r = pa_loop_read(fd, ret_data, length)) < 0 || (size_t) r != length) + ret = -1; + + close(fd); + } else + ret = -1; + + if (ret == 0) + break; + } + + return ret; +#endif /* OS_IS_WIN32 */ +} + +void pa_random_seed(void) { + unsigned int seed; + + if (random_proper(&seed, sizeof(unsigned int)) < 0) { + if (!has_whined) + pa_log_warn(__FILE__": failed to get proper entropy. Falling back to seeding with current time."); + has_whined = 1; + + seed = (unsigned int) time(NULL); + } + + srand(seed); +} + +void pa_random(void *ret_data, size_t length) { + uint8_t *p; + size_t l; + + assert(ret_data && length); + + if (random_proper(ret_data, length) >= 0) + return; + + if (!has_whined) + pa_log_warn(__FILE__": failed to get proper entropy. Falling back to unsecure pseudo RNG."); + has_whined = 1; + + for (p = ret_data, l = length; l > 0; p++, l--) + *p = (uint8_t) rand(); +} diff --git a/src/pulsecore/random.h b/src/pulsecore/random.h new file mode 100644 index 00000000..f809afec --- /dev/null +++ b/src/pulsecore/random.h @@ -0,0 +1,28 @@ +#ifndef foorandomhfoo +#define foorandomhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +void pa_random_seed(void); +void pa_random(void *ret_data, size_t length); + +#endif diff --git a/src/pulsecore/resampler.c b/src/pulsecore/resampler.c new file mode 100644 index 00000000..23cdf381 --- /dev/null +++ b/src/pulsecore/resampler.c @@ -0,0 +1,618 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <string.h> + +#include <samplerate.h> +#include <liboil/liboilfuncs.h> +#include <liboil/liboil.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/sconv.h> +#include <pulsecore/log.h> + +#include "resampler.h" + +struct pa_resampler { + pa_resample_method_t resample_method; + pa_sample_spec i_ss, o_ss; + pa_channel_map i_cm, o_cm; + size_t i_fz, o_fz; + pa_memblock_stat *memblock_stat; + + void (*impl_free)(pa_resampler *r); + void (*impl_update_input_rate)(pa_resampler *r, uint32_t rate); + void (*impl_run)(pa_resampler *r, const pa_memchunk *in, pa_memchunk *out); + void *impl_data; +}; + +struct impl_libsamplerate { + float* buf1, *buf2, *buf3, *buf4; + unsigned buf1_samples, buf2_samples, buf3_samples, buf4_samples; + + pa_convert_to_float32ne_func_t to_float32ne_func; + pa_convert_from_float32ne_func_t from_float32ne_func; + SRC_STATE *src_state; + + int map_table[PA_CHANNELS_MAX][PA_CHANNELS_MAX]; + int map_required; +}; + +struct impl_trivial { + unsigned o_counter; + unsigned i_counter; +}; + +static int libsamplerate_init(pa_resampler*r); +static int trivial_init(pa_resampler*r); + +pa_resampler* pa_resampler_new( + const pa_sample_spec *a, + const pa_channel_map *am, + const pa_sample_spec *b, + const pa_channel_map *bm, + pa_memblock_stat *s, + pa_resample_method_t resample_method) { + + pa_resampler *r = NULL; + + assert(a); + assert(b); + assert(pa_sample_spec_valid(a)); + assert(pa_sample_spec_valid(b)); + assert(resample_method != PA_RESAMPLER_INVALID); + + r = pa_xnew(pa_resampler, 1); + r->impl_data = NULL; + r->memblock_stat = s; + r->resample_method = resample_method; + + r->impl_free = NULL; + r->impl_update_input_rate = NULL; + r->impl_run = NULL; + + /* Fill sample specs */ + r->i_ss = *a; + r->o_ss = *b; + + if (am) + r->i_cm = *am; + else + pa_channel_map_init_auto(&r->i_cm, r->i_ss.channels, PA_CHANNEL_MAP_DEFAULT); + + if (bm) + r->o_cm = *bm; + else + pa_channel_map_init_auto(&r->o_cm, r->o_ss.channels, PA_CHANNEL_MAP_DEFAULT); + + r->i_fz = pa_frame_size(a); + r->o_fz = pa_frame_size(b); + + /* Choose implementation */ + if (a->channels != b->channels || + a->format != b->format || + !pa_channel_map_equal(&r->i_cm, &r->o_cm) || + resample_method != PA_RESAMPLER_TRIVIAL) { + + /* Use the libsamplerate based resampler for the complicated cases */ + if (resample_method == PA_RESAMPLER_TRIVIAL) + r->resample_method = PA_RESAMPLER_SRC_ZERO_ORDER_HOLD; + + if (libsamplerate_init(r) < 0) + goto fail; + + } else { + /* Use our own simple non-fp resampler for the trivial cases and when the user selects it */ + if (trivial_init(r) < 0) + goto fail; + } + + return r; + +fail: + if (r) + pa_xfree(r); + + return NULL; +} + +void pa_resampler_free(pa_resampler *r) { + assert(r); + + if (r->impl_free) + r->impl_free(r); + + pa_xfree(r); +} + +void pa_resampler_set_input_rate(pa_resampler *r, uint32_t rate) { + assert(r); + assert(rate > 0); + + if (r->i_ss.rate == rate) + return; + + r->i_ss.rate = rate; + + if (r->impl_update_input_rate) + r->impl_update_input_rate(r, rate); +} + +void pa_resampler_run(pa_resampler *r, const pa_memchunk *in, pa_memchunk *out) { + assert(r && in && out && r->impl_run); + + r->impl_run(r, in, out); +} + +size_t pa_resampler_request(pa_resampler *r, size_t out_length) { + assert(r); + + return (((out_length / r->o_fz)*r->i_ss.rate)/r->o_ss.rate) * r->i_fz; +} + +pa_resample_method_t pa_resampler_get_method(pa_resampler *r) { + assert(r); + return r->resample_method; +} + +static const char * const resample_methods[] = { + "src-sinc-best-quality", + "src-sinc-medium-quality", + "src-sinc-fastest", + "src-zero-order-hold", + "src-linear", + "trivial" +}; + +const char *pa_resample_method_to_string(pa_resample_method_t m) { + + if (m < 0 || m >= PA_RESAMPLER_MAX) + return NULL; + + return resample_methods[m]; +} + +pa_resample_method_t pa_parse_resample_method(const char *string) { + pa_resample_method_t m; + + assert(string); + + for (m = 0; m < PA_RESAMPLER_MAX; m++) + if (!strcmp(string, resample_methods[m])) + return m; + + return PA_RESAMPLER_INVALID; +} + + +/*** libsamplerate based implementation ***/ + +static void libsamplerate_free(pa_resampler *r) { + struct impl_libsamplerate *u; + + assert(r); + assert(r->impl_data); + + u = r->impl_data; + + if (u->src_state) + src_delete(u->src_state); + + pa_xfree(u->buf1); + pa_xfree(u->buf2); + pa_xfree(u->buf3); + pa_xfree(u->buf4); + pa_xfree(u); +} + +static void calc_map_table(pa_resampler *r) { + struct impl_libsamplerate *u; + unsigned oc; + assert(r); + assert(r->impl_data); + + u = r->impl_data; + + if (!(u->map_required = (!pa_channel_map_equal(&r->i_cm, &r->o_cm) || r->i_ss.channels != r->o_ss.channels))) + return; + + for (oc = 0; oc < r->o_ss.channels; oc++) { + unsigned ic, i = 0; + + for (ic = 0; ic < r->i_ss.channels; ic++) { + pa_channel_position_t a, b; + + a = r->i_cm.map[ic]; + b = r->o_cm.map[oc]; + + if (a == b || + (a == PA_CHANNEL_POSITION_MONO && b == PA_CHANNEL_POSITION_LEFT) || + (a == PA_CHANNEL_POSITION_MONO && b == PA_CHANNEL_POSITION_RIGHT) || + (a == PA_CHANNEL_POSITION_LEFT && b == PA_CHANNEL_POSITION_MONO) || + (a == PA_CHANNEL_POSITION_RIGHT && b == PA_CHANNEL_POSITION_MONO)) + + u->map_table[oc][i++] = ic; + } + + /* Add an end marker */ + if (i < PA_CHANNELS_MAX) + u->map_table[oc][i] = -1; + } +} + +static float * convert_to_float(pa_resampler *r, void *input, unsigned n_frames) { + struct impl_libsamplerate *u; + unsigned n_samples; + + assert(r); + assert(input); + assert(r->impl_data); + u = r->impl_data; + + /* Convert the incoming sample into floats and place them in buf1 */ + + if (!u->to_float32ne_func) + return input; + + n_samples = n_frames * r->i_ss.channels; + + if (u->buf1_samples < n_samples) + u->buf1 = pa_xrealloc(u->buf1, sizeof(float) * (u->buf1_samples = n_samples)); + + u->to_float32ne_func(n_samples, input, u->buf1); + + return u->buf1; +} + +static float *remap_channels(pa_resampler *r, float *input, unsigned n_frames) { + struct impl_libsamplerate *u; + unsigned n_samples; + int i_skip, o_skip; + unsigned oc; + + assert(r); + assert(input); + assert(r->impl_data); + u = r->impl_data; + + /* Remap channels and place the result int buf2 */ + + if (!u->map_required) + return input; + + n_samples = n_frames * r->o_ss.channels; + + if (u->buf2_samples < n_samples) + u->buf2 = pa_xrealloc(u->buf2, sizeof(float) * (u->buf2_samples = n_samples)); + + memset(u->buf2, 0, n_samples * sizeof(float)); + + o_skip = sizeof(float) * r->o_ss.channels; + i_skip = sizeof(float) * r->i_ss.channels; + + for (oc = 0; oc < r->o_ss.channels; oc++) { + unsigned i; + static const float one = 1.0; + + for (i = 0; i < PA_CHANNELS_MAX && u->map_table[oc][i] >= 0; i++) + oil_vectoradd_f32( + u->buf2 + oc, o_skip, + u->buf2 + oc, o_skip, + input + u->map_table[oc][i], i_skip, + n_frames, + &one, &one); + } + + return u->buf2; +} + +static float *resample(pa_resampler *r, float *input, unsigned *n_frames) { + struct impl_libsamplerate *u; + SRC_DATA data; + unsigned out_n_frames, out_n_samples; + int ret; + + assert(r); + assert(input); + assert(n_frames); + assert(r->impl_data); + u = r->impl_data; + + /* Resample the data and place the result in buf3 */ + + if (!u->src_state) + return input; + + out_n_frames = (*n_frames*r->o_ss.rate/r->i_ss.rate)+1024; + out_n_samples = out_n_frames * r->o_ss.channels; + + if (u->buf3_samples < out_n_samples) + u->buf3 = pa_xrealloc(u->buf3, sizeof(float) * (u->buf3_samples = out_n_samples)); + + data.data_in = input; + data.input_frames = *n_frames; + + data.data_out = u->buf3; + data.output_frames = out_n_frames; + + data.src_ratio = (double) r->o_ss.rate / r->i_ss.rate; + data.end_of_input = 0; + + ret = src_process(u->src_state, &data); + assert(ret == 0); + assert((unsigned) data.input_frames_used == *n_frames); + + *n_frames = data.output_frames_gen; + + return u->buf3; +} + +static void *convert_from_float(pa_resampler *r, float *input, unsigned n_frames) { + struct impl_libsamplerate *u; + unsigned n_samples; + + assert(r); + assert(input); + assert(r->impl_data); + u = r->impl_data; + + /* Convert the data into the correct sample type and place the result in buf4 */ + + if (!u->from_float32ne_func) + return input; + + n_samples = n_frames * r->o_ss.channels; + + if (u->buf4_samples < n_samples) + u->buf4 = pa_xrealloc(u->buf4, sizeof(float) * (u->buf4_samples = n_samples)); + + u->from_float32ne_func(n_samples, input, u->buf4); + + return u->buf4; +} + +static void libsamplerate_run(pa_resampler *r, const pa_memchunk *in, pa_memchunk *out) { + struct impl_libsamplerate *u; + float *buf; + void *input, *output; + unsigned n_frames; + + assert(r); + assert(in); + assert(out); + assert(in->length); + assert(in->memblock); + assert(in->length % r->i_fz == 0); + assert(r->impl_data); + + u = r->impl_data; + + input = ((uint8_t*) in->memblock->data + in->index); + n_frames = in->length / r->i_fz; + assert(n_frames > 0); + + buf = convert_to_float(r, input, n_frames); + buf = remap_channels(r, buf, n_frames); + buf = resample(r, buf, &n_frames); + + if (n_frames) { + output = convert_from_float(r, buf, n_frames); + + if (output == input) { + /* Mm, no adjustment has been necessary, so let's return the original block */ + out->memblock = pa_memblock_ref(in->memblock); + out->index = in->index; + out->length = in->length; + } else { + float **p = NULL; + + out->length = n_frames * r->o_fz; + out->index = 0; + + if (output == u->buf1) { + p = &u->buf1; + u->buf1_samples = 0; + } else if (output == u->buf2) { + p = &u->buf2; + u->buf2_samples = 0; + } else if (output == u->buf3) { + p = &u->buf3; + u->buf3_samples = 0; + } else if (output == u->buf4) { + p = &u->buf4; + u->buf4_samples = 0; + } + + assert(p); + + /* Take the existing buffer and make it a memblock */ + out->memblock = pa_memblock_new_dynamic(*p, out->length, r->memblock_stat); + *p = NULL; + } + } else { + out->memblock = NULL; + out->index = out->length = 0; + } +} + +static void libsamplerate_update_input_rate(pa_resampler *r, uint32_t rate) { + struct impl_libsamplerate *u; + + assert(r); + assert(rate > 0); + assert(r->impl_data); + u = r->impl_data; + + if (!u->src_state) { + int err; + u->src_state = src_new(r->resample_method, r->o_ss.channels, &err); + assert(u->src_state); + } else { + int ret = src_set_ratio(u->src_state, (double) r->o_ss.rate / rate); + assert(ret == 0); + } +} + +static int libsamplerate_init(pa_resampler *r) { + struct impl_libsamplerate *u = NULL; + int err; + + r->impl_data = u = pa_xnew(struct impl_libsamplerate, 1); + + u->buf1 = u->buf2 = u->buf3 = u->buf4 = NULL; + u->buf1_samples = u->buf2_samples = u->buf3_samples = u->buf4_samples = 0; + + if (r->i_ss.format == PA_SAMPLE_FLOAT32NE) + u->to_float32ne_func = NULL; + else if (!(u->to_float32ne_func = pa_get_convert_to_float32ne_function(r->i_ss.format))) + goto fail; + + if (r->o_ss.format == PA_SAMPLE_FLOAT32NE) + u->from_float32ne_func = NULL; + else if (!(u->from_float32ne_func = pa_get_convert_from_float32ne_function(r->o_ss.format))) + goto fail; + + if (r->o_ss.rate == r->i_ss.rate) + u->src_state = NULL; + else if (!(u->src_state = src_new(r->resample_method, r->o_ss.channels, &err))) + goto fail; + + r->impl_free = libsamplerate_free; + r->impl_update_input_rate = libsamplerate_update_input_rate; + r->impl_run = libsamplerate_run; + + calc_map_table(r); + + return 0; + +fail: + pa_xfree(u); + return -1; +} + +/* Trivial implementation */ + +static void trivial_run(pa_resampler *r, const pa_memchunk *in, pa_memchunk *out) { + size_t fz; + unsigned n_frames; + struct impl_trivial *u; + + assert(r); + assert(in); + assert(out); + assert(r->impl_data); + + u = r->impl_data; + + fz = r->i_fz; + assert(fz == r->o_fz); + + n_frames = in->length/fz; + + if (r->i_ss.rate == r->o_ss.rate) { + + /* In case there's no diefference in sample types, do nothing */ + *out = *in; + pa_memblock_ref(out->memblock); + + u->o_counter += n_frames; + } else { + /* Do real resampling */ + size_t l; + unsigned o_index; + + /* The length of the new memory block rounded up */ + l = ((((n_frames+1) * r->o_ss.rate) / r->i_ss.rate) + 1) * fz; + + out->index = 0; + out->memblock = pa_memblock_new(l, r->memblock_stat); + + for (o_index = 0;; o_index++, u->o_counter++) { + unsigned j; + + j = (u->o_counter * r->i_ss.rate / r->o_ss.rate); + j = j > u->i_counter ? j - u->i_counter : 0; + + if (j >= n_frames) + break; + + assert(o_index*fz < out->memblock->length); + + memcpy((uint8_t*) out->memblock->data + fz*o_index, + (uint8_t*) in->memblock->data + in->index + fz*j, fz); + + } + + out->length = o_index*fz; + } + + u->i_counter += n_frames; + + /* Normalize counters */ + while (u->i_counter >= r->i_ss.rate) { + u->i_counter -= r->i_ss.rate; + assert(u->o_counter >= r->o_ss.rate); + u->o_counter -= r->o_ss.rate; + } +} + +static void trivial_free(pa_resampler *r) { + assert(r); + + pa_xfree(r->impl_data); +} + +static void trivial_update_input_rate(pa_resampler *r, uint32_t rate) { + struct impl_trivial *u; + + assert(r); + assert(rate > 0); + assert(r->impl_data); + + u = r->impl_data; + u->i_counter = 0; + u->o_counter = 0; +} + +static int trivial_init(pa_resampler*r) { + struct impl_trivial *u; + + assert(r); + assert(r->i_ss.format == r->o_ss.format); + assert(r->i_ss.channels == r->o_ss.channels); + + r->impl_data = u = pa_xnew(struct impl_trivial, 1); + u->o_counter = u->i_counter = 0; + + r->impl_run = trivial_run; + r->impl_free = trivial_free; + r->impl_update_input_rate = trivial_update_input_rate; + + return 0; +} + + diff --git a/src/pulsecore/resampler.h b/src/pulsecore/resampler.h new file mode 100644 index 00000000..c1199e5c --- /dev/null +++ b/src/pulsecore/resampler.h @@ -0,0 +1,73 @@ +#ifndef fooresamplerhfoo +#define fooresamplerhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <samplerate.h> + +#include <pulse/sample.h> +#include <pulse/channelmap.h> +#include <pulsecore/memblock.h> +#include <pulsecore/memchunk.h> + +typedef struct pa_resampler pa_resampler; + +typedef enum pa_resample_method { + PA_RESAMPLER_INVALID = -1, + PA_RESAMPLER_SRC_SINC_BEST_QUALITY = SRC_SINC_BEST_QUALITY, + PA_RESAMPLER_SRC_SINC_MEDIUM_QUALITY = SRC_SINC_MEDIUM_QUALITY, + PA_RESAMPLER_SRC_SINC_FASTEST = SRC_SINC_FASTEST, + PA_RESAMPLER_SRC_ZERO_ORDER_HOLD = SRC_ZERO_ORDER_HOLD, + PA_RESAMPLER_SRC_LINEAR = SRC_LINEAR, + PA_RESAMPLER_TRIVIAL, + PA_RESAMPLER_MAX +} pa_resample_method_t; + +pa_resampler* pa_resampler_new( + const pa_sample_spec *a, + const pa_channel_map *am, + const pa_sample_spec *b, + const pa_channel_map *bm, + pa_memblock_stat *s, + pa_resample_method_t resample_method); + +void pa_resampler_free(pa_resampler *r); + +/* Returns the size of an input memory block which is required to return the specified amount of output data */ +size_t pa_resampler_request(pa_resampler *r, size_t out_length); + +/* Pass the specified memory chunk to the resampler and return the newly resampled data */ +void pa_resampler_run(pa_resampler *r, const pa_memchunk *in, pa_memchunk *out); + +/* Change the input rate of the resampler object */ +void pa_resampler_set_input_rate(pa_resampler *r, uint32_t rate); + +/* Return the resampling method of the resampler object */ +pa_resample_method_t pa_resampler_get_method(pa_resampler *r); + +/* Try to parse the resampler method */ +pa_resample_method_t pa_parse_resample_method(const char *string); + +/* return a human readable string for the specified resampling method. Inverse of pa_parse_resample_method() */ +const char *pa_resample_method_to_string(pa_resample_method_t m); + +#endif diff --git a/src/pulsecore/sample-util.c b/src/pulsecore/sample-util.c new file mode 100644 index 00000000..638f8067 --- /dev/null +++ b/src/pulsecore/sample-util.c @@ -0,0 +1,405 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#include <liboil/liboilfuncs.h> + +#include <pulsecore/log.h> + +#include "sample-util.h" +#include "endianmacros.h" + +pa_memblock *pa_silence_memblock_new(const pa_sample_spec *spec, size_t length, pa_memblock_stat*s) { + assert(spec); + + if (length == 0) + length = pa_bytes_per_second(spec)/10; /* 100 ms */ + + return pa_silence_memblock(pa_memblock_new(length, s), spec); +} + +pa_memblock *pa_silence_memblock(pa_memblock* b, const pa_sample_spec *spec) { + assert(b && b->data && spec); + pa_silence_memory(b->data, b->length, spec); + return b; +} + +void pa_silence_memchunk(pa_memchunk *c, const pa_sample_spec *spec) { + assert(c && c->memblock && c->memblock->data && spec && c->length); + + pa_silence_memory((uint8_t*) c->memblock->data+c->index, c->length, spec); +} + +void pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec) { + uint8_t c = 0; + assert(p && length && spec); + + switch (spec->format) { + case PA_SAMPLE_U8: + c = 0x80; + break; + case PA_SAMPLE_S16LE: + case PA_SAMPLE_S16BE: + case PA_SAMPLE_FLOAT32: + c = 0; + break; + case PA_SAMPLE_ALAW: + case PA_SAMPLE_ULAW: + c = 80; + break; + default: + assert(0); + } + + memset(p, c, length); +} + +size_t pa_mix( + const pa_mix_info streams[], + unsigned nstreams, + void *data, + size_t length, + const pa_sample_spec *spec, + const pa_cvolume *volume, + int mute) { + + assert(streams && data && length && spec); + + switch (spec->format) { + case PA_SAMPLE_S16NE:{ + size_t d; + unsigned channel = 0; + + for (d = 0;; d += sizeof(int16_t)) { + int32_t sum = 0; + + if (d >= length) + return d; + + if (!mute && volume->values[channel] != PA_VOLUME_MUTED) { + unsigned i; + + for (i = 0; i < nstreams; i++) { + int32_t v; + pa_volume_t cvolume = streams[i].volume.values[channel]; + + if (d >= streams[i].chunk.length) + return d; + + if (cvolume == PA_VOLUME_MUTED) + v = 0; + else { + v = *((int16_t*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d)); + + if (cvolume != PA_VOLUME_NORM) + v = (int32_t) (v * pa_sw_volume_to_linear(cvolume)); + } + + sum += v; + } + + if (volume->values[channel] != PA_VOLUME_NORM) + sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel])); + + if (sum < -0x8000) sum = -0x8000; + if (sum > 0x7FFF) sum = 0x7FFF; + + } + + *((int16_t*) data) = sum; + data = (uint8_t*) data + sizeof(int16_t); + + if (++channel >= spec->channels) + channel = 0; + } + } + + case PA_SAMPLE_S16RE:{ + size_t d; + unsigned channel = 0; + + for (d = 0;; d += sizeof(int16_t)) { + int32_t sum = 0; + + if (d >= length) + return d; + + if (!mute && volume->values[channel] != PA_VOLUME_MUTED) { + unsigned i; + + for (i = 0; i < nstreams; i++) { + int32_t v; + pa_volume_t cvolume = streams[i].volume.values[channel]; + + if (d >= streams[i].chunk.length) + return d; + + if (cvolume == PA_VOLUME_MUTED) + v = 0; + else { + v = INT16_SWAP(*((int16_t*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d))); + + if (cvolume != PA_VOLUME_NORM) + v = (int32_t) (v * pa_sw_volume_to_linear(cvolume)); + } + + sum += v; + } + + if (volume->values[channel] != PA_VOLUME_NORM) + sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel])); + + if (sum < -0x8000) sum = -0x8000; + if (sum > 0x7FFF) sum = 0x7FFF; + + } + + *((int16_t*) data) = INT16_SWAP(sum); + data = (uint8_t*) data + sizeof(int16_t); + + if (++channel >= spec->channels) + channel = 0; + } + } + + case PA_SAMPLE_U8: { + size_t d; + unsigned channel = 0; + + for (d = 0;; d ++) { + int32_t sum = 0; + + if (d >= length) + return d; + + if (!mute && volume->values[channel] != PA_VOLUME_MUTED) { + unsigned i; + + for (i = 0; i < nstreams; i++) { + int32_t v; + pa_volume_t cvolume = streams[i].volume.values[channel]; + + if (d >= streams[i].chunk.length) + return d; + + if (cvolume == PA_VOLUME_MUTED) + v = 0; + else { + v = (int32_t) *((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d) - 0x80; + + if (cvolume != PA_VOLUME_NORM) + v = (int32_t) (v * pa_sw_volume_to_linear(cvolume)); + } + + sum += v; + } + + if (volume->values[channel] != PA_VOLUME_NORM) + sum = (int32_t) (sum * pa_sw_volume_to_linear(volume->values[channel])); + + if (sum < -0x80) sum = -0x80; + if (sum > 0x7F) sum = 0x7F; + + } + + *((uint8_t*) data) = (uint8_t) (sum + 0x80); + data = (uint8_t*) data + 1; + + if (++channel >= spec->channels) + channel = 0; + } + } + + case PA_SAMPLE_FLOAT32NE: { + size_t d; + unsigned channel = 0; + + for (d = 0;; d += sizeof(float)) { + float sum = 0; + + if (d >= length) + return d; + + if (!mute && volume->values[channel] != PA_VOLUME_MUTED) { + unsigned i; + + for (i = 0; i < nstreams; i++) { + float v; + pa_volume_t cvolume = streams[i].volume.values[channel]; + + if (d >= streams[i].chunk.length) + return d; + + if (cvolume == PA_VOLUME_MUTED) + v = 0; + else { + v = *((float*) ((uint8_t*) streams[i].chunk.memblock->data + streams[i].chunk.index + d)); + + if (cvolume != PA_VOLUME_NORM) + v *= pa_sw_volume_to_linear(cvolume); + } + + sum += v; + } + + if (volume->values[channel] != PA_VOLUME_NORM) + sum *= pa_sw_volume_to_linear(volume->values[channel]); + } + + *((float*) data) = sum; + data = (uint8_t*) data + sizeof(float); + + if (++channel >= spec->channels) + channel = 0; + } + } + + default: + pa_log_error(__FILE__": ERROR: Unable to mix audio data of format %s.", pa_sample_format_to_string(spec->format)); + abort(); + } +} + + +void pa_volume_memchunk(pa_memchunk*c, const pa_sample_spec *spec, const pa_cvolume *volume) { + assert(c && spec && (c->length % pa_frame_size(spec) == 0)); + assert(volume); + + if (pa_cvolume_channels_equal_to(volume, PA_VOLUME_NORM)) + return; + + if (pa_cvolume_channels_equal_to(volume, PA_VOLUME_MUTED)) { + pa_silence_memchunk(c, spec); + return; + } + + switch (spec->format) { + case PA_SAMPLE_S16NE: { + int16_t *d; + size_t n; + unsigned channel; + double linear[PA_CHANNELS_MAX]; + + for (channel = 0; channel < spec->channels; channel++) + linear[channel] = pa_sw_volume_to_linear(volume->values[channel]); + + for (channel = 0, d = (int16_t*) ((uint8_t*) c->memblock->data+c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) { + int32_t t = (int32_t)(*d); + + t = (int32_t) (t * linear[channel]); + + if (t < -0x8000) t = -0x8000; + if (t > 0x7FFF) t = 0x7FFF; + + *d = (int16_t) t; + + if (++channel >= spec->channels) + channel = 0; + } + break; + } + + case PA_SAMPLE_S16RE: { + int16_t *d; + size_t n; + unsigned channel; + double linear[PA_CHANNELS_MAX]; + + for (channel = 0; channel < spec->channels; channel++) + linear[channel] = pa_sw_volume_to_linear(volume->values[channel]); + + for (channel = 0, d = (int16_t*) ((uint8_t*) c->memblock->data+c->index), n = c->length/sizeof(int16_t); n > 0; d++, n--) { + int32_t t = (int32_t)(INT16_SWAP(*d)); + + t = (int32_t) (t * linear[channel]); + + if (t < -0x8000) t = -0x8000; + if (t > 0x7FFF) t = 0x7FFF; + + *d = INT16_SWAP((int16_t) t); + + if (++channel >= spec->channels) + channel = 0; + } + + break; + } + + case PA_SAMPLE_U8: { + uint8_t *d; + size_t n; + unsigned channel = 0; + + for (d = (uint8_t*) c->memblock->data + c->index, n = c->length; n > 0; d++, n--) { + int32_t t = (int32_t) *d - 0x80; + + t = (int32_t) (t * pa_sw_volume_to_linear(volume->values[channel])); + + if (t < -0x80) t = -0x80; + if (t > 0x7F) t = 0x7F; + + *d = (uint8_t) (t + 0x80); + + if (++channel >= spec->channels) + channel = 0; + } + break; + } + + case PA_SAMPLE_FLOAT32NE: { + float *d; + int skip; + unsigned n; + unsigned channel; + + d = (float*) ((uint8_t*) c->memblock->data + c->index); + skip = spec->channels * sizeof(float); + n = c->length/sizeof(float)/spec->channels; + + for (channel = 0; channel < spec->channels ; channel ++) { + float v, *t; + + if (volume->values[channel] == PA_VOLUME_NORM) + continue; + + v = (float) pa_sw_volume_to_linear(volume->values[channel]); + + t = d + channel; + oil_scalarmult_f32(t, skip, t, skip, &v, n); + } + break; + } + + default: + pa_log_error(__FILE__": ERROR: Unable to change volume of format %s.", + pa_sample_format_to_string(spec->format)); + abort(); + } +} + diff --git a/src/pulsecore/sample-util.h b/src/pulsecore/sample-util.h new file mode 100644 index 00000000..3ebb7e2e --- /dev/null +++ b/src/pulsecore/sample-util.h @@ -0,0 +1,55 @@ +#ifndef foosampleutilhfoo +#define foosampleutilhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulse/sample.h> +#include <pulse/volume.h> +#include <pulsecore/memblock.h> +#include <pulsecore/memchunk.h> + +pa_memblock *pa_silence_memblock(pa_memblock* b, const pa_sample_spec *spec); +pa_memblock *pa_silence_memblock_new(const pa_sample_spec *spec, size_t length, pa_memblock_stat*s); +void pa_silence_memchunk(pa_memchunk *c, const pa_sample_spec *spec); +void pa_silence_memory(void *p, size_t length, const pa_sample_spec *spec); + +typedef struct pa_mix_info { + pa_memchunk chunk; + pa_cvolume volume; + void *userdata; +} pa_mix_info; + +size_t pa_mix( + const pa_mix_info channels[], + unsigned nchannels, + void *data, + size_t length, + const pa_sample_spec *spec, + const pa_cvolume *volume, + int mute); + +void pa_volume_memchunk( + pa_memchunk*c, + const pa_sample_spec *spec, + const pa_cvolume *volume); + +#endif diff --git a/src/pulsecore/sconv-s16be.c b/src/pulsecore/sconv-s16be.c new file mode 100644 index 00000000..5ac96320 --- /dev/null +++ b/src/pulsecore/sconv-s16be.c @@ -0,0 +1,41 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "endianmacros.h" + +#define INT16_FROM INT16_FROM_BE +#define INT16_TO INT16_TO_BE + +#define pa_sconv_s16le_to_float32ne pa_sconv_s16be_to_float32ne +#define pa_sconv_s16le_from_float32ne pa_sconv_s16be_from_float32ne + +#ifdef WORDS_BIGENDIAN +#define SWAP_WORDS 0 +#else +#define SWAP_WORDS 1 +#endif + +#include "sconv-s16le.h" +#include "sconv-s16le.c" diff --git a/src/pulsecore/sconv-s16be.h b/src/pulsecore/sconv-s16be.h new file mode 100644 index 00000000..bd3fd345 --- /dev/null +++ b/src/pulsecore/sconv-s16be.h @@ -0,0 +1,28 @@ +#ifndef foosconv_s16befoo +#define foosconv_s16befoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +void pa_sconv_s16be_to_float32ne(unsigned n, const void *a, float *b); +void pa_sconv_s16be_from_float32ne(unsigned n, const float *a, void *b); + +#endif diff --git a/src/pulsecore/sconv-s16le.c b/src/pulsecore/sconv-s16le.c new file mode 100644 index 00000000..d8b93cbd --- /dev/null +++ b/src/pulsecore/sconv-s16le.c @@ -0,0 +1,103 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> +#include <inttypes.h> + +#include <liboil/liboilfuncs.h> + +#include <pulsecore/sconv.h> +#include <pulsecore/log.h> + +#include "endianmacros.h" + +#include "sconv-s16le.h" + +#ifndef INT16_FROM +#define INT16_FROM INT16_FROM_LE +#endif + +#ifndef INT16_TO +#define INT16_TO INT16_TO_LE +#endif + +#ifndef SWAP_WORDS +#ifdef WORDS_BIGENDIAN +#define SWAP_WORDS 1 +#else +#define SWAP_WORDS 0 +#endif +#endif + +void pa_sconv_s16le_to_float32ne(unsigned n, const void *a, float *b) { + const int16_t *ca = a; + + assert(a); + assert(b); + +#if SWAP_WORDS == 1 + + for (; n > 0; n--) { + int16_t s = *(ca++); + *(b++) = ((float) INT16_FROM(s))/0x7FFF; + } + +#else +{ + static const double add = 0, factor = 1.0/0x7FFF; + oil_scaleconv_f32_s16(b, ca, n, &add, &factor); +} +#endif +} + +void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, void *b) { + int16_t *cb = b; + + assert(a); + assert(b); + +#if SWAP_WORDS == 1 + + for (; n > 0; n--) { + int16_t s; + float v = *(a++); + + if (v > 1) + v = 1; + + if (v < -1) + v = -1; + + s = (int16_t) (v * 0x7FFF); + *(cb++) = INT16_TO(s); + } + +#else +{ + static const double add = 0, factor = 0x7FFF; + oil_scaleconv_s16_f32(cb, a, n, &add, &factor); +} +#endif +} diff --git a/src/pulsecore/sconv-s16le.h b/src/pulsecore/sconv-s16le.h new file mode 100644 index 00000000..ae6e22d2 --- /dev/null +++ b/src/pulsecore/sconv-s16le.h @@ -0,0 +1,28 @@ +#ifndef foosconv_s16lefoo +#define foosconv_s16lefoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +void pa_sconv_s16le_to_float32ne(unsigned n, const void *a, float *b); +void pa_sconv_s16le_from_float32ne(unsigned n, const float *a, void *b); + +#endif diff --git a/src/pulsecore/sconv.c b/src/pulsecore/sconv.c new file mode 100644 index 00000000..ff2a0110 --- /dev/null +++ b/src/pulsecore/sconv.c @@ -0,0 +1,169 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <assert.h> + +#include <liboil/liboilfuncs.h> +#include <liboil/liboil.h> + +#include <pulsecore/g711.h> + +#include "endianmacros.h" +#include "sconv-s16le.h" +#include "sconv-s16be.h" + +#include "sconv.h" + +static void u8_to_float32ne(unsigned n, const void *a, float *b) { + const uint8_t *ca = a; + static const double add = -128.0/127.0, factor = 1.0/127.0; + + assert(a); + assert(b); + + oil_scaleconv_f32_u8(b, ca, n, &add, &factor); +} + +static void u8_from_float32ne(unsigned n, const float *a, void *b) { + uint8_t *cb = b; + static const double add = 128.0, factor = 127.0; + + assert(a); + assert(b); + + oil_scaleconv_u8_f32(cb, a, n, &add, &factor); +} + +static void float32ne_to_float32ne(unsigned n, const void *a, float *b) { + assert(a); + assert(b); + + oil_memcpy(b, a, sizeof(float) * n); +} + +static void float32ne_from_float32ne(unsigned n, const float *a, void *b) { + assert(a); + assert(b); + + oil_memcpy(b, a, sizeof(float) * n); +} + +static void ulaw_to_float32ne(unsigned n, const void *a, float *b) { + const uint8_t *ca = a; + + assert(a); + assert(b); + + for (; n > 0; n--) + *(b++) = st_ulaw2linear16(*(ca++)) * 1.0F / 0x7FFF; +} + +static void ulaw_from_float32ne(unsigned n, const float *a, void *b) { + uint8_t *cb = b; + + assert(a); + assert(b); + + for (; n > 0; n--) { + float v = *(a++); + + if (v > 1) + v = 1; + + if (v < -1) + v = -1; + + *(cb++) = st_14linear2ulaw((int16_t) (v * 0x1FFF)); + } +} + +static void alaw_to_float32ne(unsigned n, const void *a, float *b) { + const uint8_t *ca = a; + + assert(a); + assert(b); + + for (; n > 0; n--) + *(b++) = st_alaw2linear16(*(ca++)) * 1.0F / 0x7FFF; +} + +static void alaw_from_float32ne(unsigned n, const float *a, void *b) { + uint8_t *cb = b; + + assert(a); + assert(b); + + for (; n > 0; n--) { + float v = *(a++); + + if (v > 1) + v = 1; + + if (v < -1) + v = -1; + + *(cb++) = st_13linear2alaw((int16_t) (v * 0xFFF)); + } +} + +pa_convert_to_float32ne_func_t pa_get_convert_to_float32ne_function(pa_sample_format_t f) { + switch(f) { + case PA_SAMPLE_U8: + return u8_to_float32ne; + case PA_SAMPLE_S16LE: + return pa_sconv_s16le_to_float32ne; + case PA_SAMPLE_S16BE: + return pa_sconv_s16be_to_float32ne; + case PA_SAMPLE_FLOAT32NE: + return float32ne_to_float32ne; + case PA_SAMPLE_ALAW: + return alaw_to_float32ne; + case PA_SAMPLE_ULAW: + return ulaw_to_float32ne; + default: + return NULL; + } +} + +pa_convert_from_float32ne_func_t pa_get_convert_from_float32ne_function(pa_sample_format_t f) { + switch(f) { + case PA_SAMPLE_U8: + return u8_from_float32ne; + case PA_SAMPLE_S16LE: + return pa_sconv_s16le_from_float32ne; + case PA_SAMPLE_S16BE: + return pa_sconv_s16be_from_float32ne; + case PA_SAMPLE_FLOAT32NE: + return float32ne_from_float32ne; + case PA_SAMPLE_ALAW: + return alaw_from_float32ne; + case PA_SAMPLE_ULAW: + return ulaw_from_float32ne; + default: + return NULL; + } +} diff --git a/src/pulsecore/sconv.h b/src/pulsecore/sconv.h new file mode 100644 index 00000000..4aba0694 --- /dev/null +++ b/src/pulsecore/sconv.h @@ -0,0 +1,33 @@ +#ifndef foosconvhfoo +#define foosconvhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulse/sample.h> + +typedef void (*pa_convert_to_float32ne_func_t)(unsigned n, const void *a, float *b); +typedef void (*pa_convert_from_float32ne_func_t)(unsigned n, const float *a, void *b); + +pa_convert_to_float32ne_func_t pa_get_convert_to_float32ne_function(pa_sample_format_t f); +pa_convert_from_float32ne_func_t pa_get_convert_from_float32ne_function(pa_sample_format_t f); + +#endif diff --git a/src/pulsecore/sink-input.c b/src/pulsecore/sink-input.c new file mode 100644 index 00000000..8590a0b1 --- /dev/null +++ b/src/pulsecore/sink-input.c @@ -0,0 +1,386 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/sample-util.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> + +#include "sink-input.h" + +#define CONVERT_BUFFER_LENGTH 4096 + +#define CHECK_VALIDITY_RETURN_NULL(condition) \ +do {\ +if (!(condition)) \ + return NULL; \ +} while (0) + +pa_sink_input* pa_sink_input_new( + pa_sink *s, + const char *driver, + const char *name, + const pa_sample_spec *spec, + const pa_channel_map *map, + const pa_cvolume *volume, + int variable_rate, + int resample_method) { + + pa_sink_input *i; + pa_resampler *resampler = NULL; + int r; + char st[256]; + pa_channel_map tmap; + pa_cvolume tvol; + + assert(s); + assert(spec); + assert(s->state == PA_SINK_RUNNING); + + CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec)); + + if (!map) + map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT); + if (!volume) + volume = pa_cvolume_reset(&tvol, spec->channels); + + CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map)); + CHECK_VALIDITY_RETURN_NULL(volume && pa_cvolume_valid(volume)); + CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels); + CHECK_VALIDITY_RETURN_NULL(volume->channels == spec->channels); + CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver)); + CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name)); + + if (pa_idxset_size(s->inputs) >= PA_MAX_INPUTS_PER_SINK) { + pa_log_warn(__FILE__": Failed to create sink input: too many inputs per sink."); + return NULL; + } + + if (resample_method == PA_RESAMPLER_INVALID) + resample_method = s->core->resample_method; + + if (variable_rate || !pa_sample_spec_equal(spec, &s->sample_spec) || !pa_channel_map_equal(map, &s->channel_map)) + if (!(resampler = pa_resampler_new(spec, map, &s->sample_spec, &s->channel_map, s->core->memblock_stat, resample_method))) + return NULL; + + i = pa_xnew(pa_sink_input, 1); + i->ref = 1; + i->state = PA_SINK_INPUT_RUNNING; + i->name = pa_xstrdup(name); + i->driver = pa_xstrdup(driver); + i->owner = NULL; + i->sink = s; + i->client = NULL; + + i->sample_spec = *spec; + i->channel_map = *map; + i->volume = *volume; + + i->peek = NULL; + i->drop = NULL; + i->kill = NULL; + i->get_latency = NULL; + i->underrun = NULL; + i->userdata = NULL; + + i->playing = 0; + + pa_memchunk_reset(&i->resampled_chunk); + i->resampler = resampler; + + assert(s->core); + r = pa_idxset_put(s->core->sink_inputs, i, &i->index); + assert(r == 0 && i->index != PA_IDXSET_INVALID); + r = pa_idxset_put(s->inputs, i, NULL); + assert(r == 0); + + pa_sample_spec_snprint(st, sizeof(st), spec); + pa_log_info(__FILE__": created %u \"%s\" on %u with sample spec \"%s\"", i->index, i->name, s->index, st); + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_NEW, i->index); + + return i; +} + +void pa_sink_input_disconnect(pa_sink_input *i) { + assert(i); + assert(i->state != PA_SINK_INPUT_DISCONNECTED); + assert(i->sink); + assert(i->sink->core); + + pa_idxset_remove_by_data(i->sink->core->sink_inputs, i, NULL); + pa_idxset_remove_by_data(i->sink->inputs, i, NULL); + + pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index); + i->sink = NULL; + + i->peek = NULL; + i->drop = NULL; + i->kill = NULL; + i->get_latency = NULL; + i->underrun = NULL; + + i->playing = 0; + i->state = PA_SINK_INPUT_DISCONNECTED; +} + +static void sink_input_free(pa_sink_input* i) { + assert(i); + + if (i->state != PA_SINK_INPUT_DISCONNECTED) + pa_sink_input_disconnect(i); + + pa_log_info(__FILE__": freed %u \"%s\"", i->index, i->name); + + if (i->resampled_chunk.memblock) + pa_memblock_unref(i->resampled_chunk.memblock); + + if (i->resampler) + pa_resampler_free(i->resampler); + + pa_xfree(i->name); + pa_xfree(i->driver); + pa_xfree(i); +} + +void pa_sink_input_unref(pa_sink_input *i) { + assert(i); + assert(i->ref >= 1); + + if (!(--i->ref)) + sink_input_free(i); +} + +pa_sink_input* pa_sink_input_ref(pa_sink_input *i) { + assert(i); + assert(i->ref >= 1); + + i->ref++; + return i; +} + +void pa_sink_input_kill(pa_sink_input*i) { + assert(i); + assert(i->ref >= 1); + + if (i->kill) + i->kill(i); +} + +pa_usec_t pa_sink_input_get_latency(pa_sink_input *i) { + pa_usec_t r = 0; + + assert(i); + assert(i->ref >= 1); + + if (i->get_latency) + r += i->get_latency(i); + + if (i->resampled_chunk.memblock) + r += pa_bytes_to_usec(i->resampled_chunk.length, &i->sample_spec); + + return r; +} + +int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume) { + int ret = -1; + int do_volume_adj_here; + + assert(i); + assert(i->ref >= 1); + assert(chunk); + assert(volume); + + pa_sink_input_ref(i); + + if (!i->peek || !i->drop || i->state == PA_SINK_INPUT_CORKED) + goto finish; + + if (!i->resampler) { + do_volume_adj_here = 0; + ret = i->peek(i, chunk); + goto finish; + } + + do_volume_adj_here = !pa_channel_map_equal(&i->channel_map, &i->sink->channel_map); + + while (!i->resampled_chunk.memblock) { + pa_memchunk tchunk; + size_t l; + + if ((ret = i->peek(i, &tchunk)) < 0) + goto finish; + + assert(tchunk.length); + + l = pa_resampler_request(i->resampler, CONVERT_BUFFER_LENGTH); + + if (l > tchunk.length) + l = tchunk.length; + + i->drop(i, &tchunk, l); + tchunk.length = l; + + /* It might be necessary to adjust the volume here */ + if (do_volume_adj_here) { + pa_memchunk_make_writable(&tchunk, i->sink->core->memblock_stat, 0); + pa_volume_memchunk(&tchunk, &i->sample_spec, &i->volume); + } + + pa_resampler_run(i->resampler, &tchunk, &i->resampled_chunk); + pa_memblock_unref(tchunk.memblock); + } + + assert(i->resampled_chunk.memblock); + assert(i->resampled_chunk.length); + + *chunk = i->resampled_chunk; + pa_memblock_ref(i->resampled_chunk.memblock); + + ret = 0; + +finish: + + if (ret < 0 && i->playing && i->underrun) + i->underrun(i); + + i->playing = ret >= 0; + + if (ret >= 0) { + /* Let's see if we had to apply the volume adjustment + * ourselves, or if this can be done by the sink for us */ + + if (do_volume_adj_here) + /* We had different channel maps, so we already did the adjustment */ + pa_cvolume_reset(volume, i->sink->sample_spec.channels); + else + /* We've both the same channel map, so let's have the sink do the adjustment for us*/ + *volume = i->volume; + } + + pa_sink_input_unref(i); + + return ret; +} + +void pa_sink_input_drop(pa_sink_input *i, const pa_memchunk *chunk, size_t length) { + assert(i); + assert(i->ref >= 1); + assert(length > 0); + + if (!i->resampler) { + if (i->drop) + i->drop(i, chunk, length); + return; + } + + assert(i->resampled_chunk.memblock); + assert(i->resampled_chunk.length >= length); + + i->resampled_chunk.index += length; + i->resampled_chunk.length -= length; + + if (i->resampled_chunk.length <= 0) { + pa_memblock_unref(i->resampled_chunk.memblock); + i->resampled_chunk.memblock = NULL; + i->resampled_chunk.index = i->resampled_chunk.length = 0; + } +} + +void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume) { + assert(i); + assert(i->ref >= 1); + assert(i->sink); + assert(i->sink->core); + + if (pa_cvolume_equal(&i->volume, volume)) + return; + + i->volume = *volume; + pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index); +} + +const pa_cvolume * pa_sink_input_get_volume(pa_sink_input *i) { + assert(i); + assert(i->ref >= 1); + + return &i->volume; +} + +void pa_sink_input_cork(pa_sink_input *i, int b) { + int n; + + assert(i); + assert(i->ref >= 1); + + if (i->state == PA_SINK_INPUT_DISCONNECTED) + return; + + n = i->state == PA_SINK_INPUT_CORKED && !b; + + i->state = b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING; + + if (n) + pa_sink_notify(i->sink); +} + +void pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate) { + assert(i); + assert(i->resampler); + assert(i->ref >= 1); + + if (i->sample_spec.rate == rate) + return; + + i->sample_spec.rate = rate; + pa_resampler_set_input_rate(i->resampler, rate); +} + +void pa_sink_input_set_name(pa_sink_input *i, const char *name) { + assert(i); + assert(i->ref >= 1); + + pa_xfree(i->name); + i->name = pa_xstrdup(name); + + pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index); +} + +pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i) { + assert(i); + assert(i->ref >= 1); + + if (!i->resampler) + return PA_RESAMPLER_INVALID; + + return pa_resampler_get_method(i->resampler); +} diff --git a/src/pulsecore/sink-input.h b/src/pulsecore/sink-input.h new file mode 100644 index 00000000..69a7e50a --- /dev/null +++ b/src/pulsecore/sink-input.h @@ -0,0 +1,107 @@ +#ifndef foosinkinputhfoo +#define foosinkinputhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +typedef struct pa_sink_input pa_sink_input; + +#include <pulse/sample.h> +#include <pulsecore/sink.h> +#include <pulsecore/memblockq.h> +#include <pulsecore/resampler.h> +#include <pulsecore/module.h> +#include <pulsecore/client.h> + +typedef enum pa_sink_input_state { + PA_SINK_INPUT_RUNNING, + PA_SINK_INPUT_CORKED, + PA_SINK_INPUT_DISCONNECTED +} pa_sink_input_state_t; + +struct pa_sink_input { + int ref; + uint32_t index; + pa_sink_input_state_t state; + + char *name, *driver; + pa_module *owner; + + pa_sink *sink; + pa_client *client; + + pa_sample_spec sample_spec; + pa_channel_map channel_map; + + pa_cvolume volume; + + int (*peek) (pa_sink_input *i, pa_memchunk *chunk); + void (*drop) (pa_sink_input *i, const pa_memchunk *chunk, size_t length); + void (*kill) (pa_sink_input *i); + pa_usec_t (*get_latency) (pa_sink_input *i); + void (*underrun) (pa_sink_input *i); + + void *userdata; + + int playing; + + pa_memchunk resampled_chunk; + pa_resampler *resampler; +}; + +pa_sink_input* pa_sink_input_new( + pa_sink *s, + const char *driver, + const char *name, + const pa_sample_spec *spec, + const pa_channel_map *map, + const pa_cvolume *volume, + int variable_rate, + int resample_method); + +void pa_sink_input_unref(pa_sink_input* i); +pa_sink_input* pa_sink_input_ref(pa_sink_input* i); + +/* To be called by the implementing module only */ +void pa_sink_input_disconnect(pa_sink_input* i); + +/* External code may request disconnection with this funcion */ +void pa_sink_input_kill(pa_sink_input*i); + +pa_usec_t pa_sink_input_get_latency(pa_sink_input *i); + +int pa_sink_input_peek(pa_sink_input *i, pa_memchunk *chunk, pa_cvolume *volume); +void pa_sink_input_drop(pa_sink_input *i, const pa_memchunk *chunk, size_t length); + +void pa_sink_input_set_volume(pa_sink_input *i, const pa_cvolume *volume); +const pa_cvolume * pa_sink_input_get_volume(pa_sink_input *i); + +void pa_sink_input_cork(pa_sink_input *i, int b); + +void pa_sink_input_set_rate(pa_sink_input *i, uint32_t rate); + +void pa_sink_input_set_name(pa_sink_input *i, const char *name); + +pa_resample_method_t pa_sink_input_get_resample_method(pa_sink_input *i); + +#endif diff --git a/src/pulsecore/sink.c b/src/pulsecore/sink.c new file mode 100644 index 00000000..ee6850f0 --- /dev/null +++ b/src/pulsecore/sink.c @@ -0,0 +1,513 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <stdio.h> + +#include <pulse/introspect.h> +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/sink-input.h> +#include <pulsecore/namereg.h> +#include <pulsecore/core-util.h> +#include <pulsecore/sample-util.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> + +#include "sink.h" + +#define MAX_MIX_CHANNELS 32 + +#define CHECK_VALIDITY_RETURN_NULL(condition) \ +do {\ +if (!(condition)) \ + return NULL; \ +} while (0) + +pa_sink* pa_sink_new( + pa_core *core, + const char *driver, + const char *name, + int fail, + const pa_sample_spec *spec, + const pa_channel_map *map) { + + pa_sink *s; + char *n = NULL; + char st[256]; + int r; + pa_channel_map tmap; + + assert(core); + assert(name); + assert(spec); + + CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec)); + + if (!map) + map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT); + + CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map)); + CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels); + CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver)); + CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name) && *name); + + s = pa_xnew(pa_sink, 1); + + if (!(name = pa_namereg_register(core, name, PA_NAMEREG_SINK, s, fail))) { + pa_xfree(s); + return NULL; + } + + s->ref = 1; + s->core = core; + s->state = PA_SINK_RUNNING; + s->name = pa_xstrdup(name); + s->description = NULL; + s->driver = pa_xstrdup(driver); + s->owner = NULL; + + s->sample_spec = *spec; + s->channel_map = *map; + + s->inputs = pa_idxset_new(NULL, NULL); + + pa_cvolume_reset(&s->sw_volume, spec->channels); + pa_cvolume_reset(&s->hw_volume, spec->channels); + s->sw_muted = 0; + s->hw_muted = 0; + + s->get_latency = NULL; + s->notify = NULL; + s->set_hw_volume = NULL; + s->get_hw_volume = NULL; + s->set_hw_mute = NULL; + s->get_hw_mute = NULL; + s->userdata = NULL; + + r = pa_idxset_put(core->sinks, s, &s->index); + assert(s->index != PA_IDXSET_INVALID && r >= 0); + + pa_sample_spec_snprint(st, sizeof(st), spec); + pa_log_info(__FILE__": created %u \"%s\" with sample spec \"%s\"", s->index, s->name, st); + + n = pa_sprintf_malloc("%s_monitor", name); + s->monitor_source = pa_source_new(core, driver, n, 0, spec, map); + assert(s->monitor_source); + pa_xfree(n); + s->monitor_source->monitor_of = s; + s->monitor_source->description = pa_sprintf_malloc("Monitor source of sink '%s'", s->name); + + pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_NEW, s->index); + + return s; +} + +void pa_sink_disconnect(pa_sink* s) { + pa_sink_input *i, *j = NULL; + + assert(s); + assert(s->state == PA_SINK_RUNNING); + + pa_namereg_unregister(s->core, s->name); + + while ((i = pa_idxset_first(s->inputs, NULL))) { + assert(i != j); + pa_sink_input_kill(i); + j = i; + } + + pa_source_disconnect(s->monitor_source); + + pa_idxset_remove_by_data(s->core->sinks, s, NULL); + + s->get_latency = NULL; + s->notify = NULL; + s->get_hw_volume = NULL; + s->set_hw_volume = NULL; + s->set_hw_mute = NULL; + s->get_hw_mute = NULL; + + s->state = PA_SINK_DISCONNECTED; + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK | PA_SUBSCRIPTION_EVENT_REMOVE, s->index); +} + +static void sink_free(pa_sink *s) { + assert(s); + assert(!s->ref); + + if (s->state != PA_SINK_DISCONNECTED) + pa_sink_disconnect(s); + + pa_log_info(__FILE__": freed %u \"%s\"", s->index, s->name); + + pa_source_unref(s->monitor_source); + s->monitor_source = NULL; + + pa_idxset_free(s->inputs, NULL, NULL); + + pa_xfree(s->name); + pa_xfree(s->description); + pa_xfree(s->driver); + pa_xfree(s); +} + +void pa_sink_unref(pa_sink*s) { + assert(s); + assert(s->ref >= 1); + + if (!(--s->ref)) + sink_free(s); +} + +pa_sink* pa_sink_ref(pa_sink *s) { + assert(s); + assert(s->ref >= 1); + + s->ref++; + return s; +} + +void pa_sink_notify(pa_sink*s) { + assert(s); + assert(s->ref >= 1); + + if (s->notify) + s->notify(s); +} + +static unsigned fill_mix_info(pa_sink *s, pa_mix_info *info, unsigned maxinfo) { + uint32_t idx = PA_IDXSET_INVALID; + pa_sink_input *i; + unsigned n = 0; + + assert(s); + assert(s->ref >= 1); + assert(info); + + for (i = pa_idxset_first(s->inputs, &idx); maxinfo > 0 && i; i = pa_idxset_next(s->inputs, &idx)) { + /* Increase ref counter, to make sure that this input doesn't + * vanish while we still need it */ + pa_sink_input_ref(i); + + if (pa_sink_input_peek(i, &info->chunk, &info->volume) < 0) { + pa_sink_input_unref(i); + continue; + } + + info->userdata = i; + + assert(info->chunk.memblock); + assert(info->chunk.memblock->data); + assert(info->chunk.length); + + info++; + maxinfo--; + n++; + } + + return n; +} + +static void inputs_drop(pa_sink *s, pa_mix_info *info, unsigned maxinfo, size_t length) { + assert(s); + assert(s->ref >= 1); + assert(info); + + for (; maxinfo > 0; maxinfo--, info++) { + pa_sink_input *i = info->userdata; + + assert(i); + assert(info->chunk.memblock); + + /* Drop read data */ + pa_sink_input_drop(i, &info->chunk, length); + pa_memblock_unref(info->chunk.memblock); + + /* Decrease ref counter */ + pa_sink_input_unref(i); + info->userdata = NULL; + } +} + +int pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result) { + pa_mix_info info[MAX_MIX_CHANNELS]; + unsigned n; + int r = -1; + + assert(s); + assert(s->ref >= 1); + assert(length); + assert(result); + + pa_sink_ref(s); + + n = fill_mix_info(s, info, MAX_MIX_CHANNELS); + + if (n <= 0) + goto finish; + + if (n == 1) { + pa_cvolume volume; + + *result = info[0].chunk; + pa_memblock_ref(result->memblock); + + if (result->length > length) + result->length = length; + + pa_sw_cvolume_multiply(&volume, &s->sw_volume, &info[0].volume); + + if (s->sw_muted || !pa_cvolume_is_norm(&volume)) { + pa_memchunk_make_writable(result, s->core->memblock_stat, 0); + if (s->sw_muted) + pa_silence_memchunk(result, &s->sample_spec); + else + pa_volume_memchunk(result, &s->sample_spec, &volume); + } + } else { + result->memblock = pa_memblock_new(length, s->core->memblock_stat); + assert(result->memblock); + +/* pa_log("mixing %i", n); */ + + result->length = pa_mix(info, n, result->memblock->data, length, + &s->sample_spec, &s->sw_volume, s->sw_muted); + result->index = 0; + } + + inputs_drop(s, info, n, result->length); + pa_source_post(s->monitor_source, result); + + r = 0; + +finish: + pa_sink_unref(s); + + return r; +} + +int pa_sink_render_into(pa_sink*s, pa_memchunk *target) { + pa_mix_info info[MAX_MIX_CHANNELS]; + unsigned n; + int r = -1; + + assert(s); + assert(s->ref >= 1); + assert(target); + assert(target->memblock); + assert(target->length); + assert(target->memblock->data); + + pa_sink_ref(s); + + n = fill_mix_info(s, info, MAX_MIX_CHANNELS); + + if (n <= 0) + goto finish; + + if (n == 1) { + pa_cvolume volume; + + if (target->length > info[0].chunk.length) + target->length = info[0].chunk.length; + + memcpy((uint8_t*) target->memblock->data + target->index, + (uint8_t*) info[0].chunk.memblock->data + info[0].chunk.index, + target->length); + + pa_sw_cvolume_multiply(&volume, &s->sw_volume, &info[0].volume); + + if (s->sw_muted) + pa_silence_memchunk(target, &s->sample_spec); + else if (!pa_cvolume_is_norm(&volume)) + pa_volume_memchunk(target, &s->sample_spec, &volume); + } else + target->length = pa_mix(info, n, + (uint8_t*) target->memblock->data + target->index, + target->length, + &s->sample_spec, + &s->sw_volume, + s->sw_muted); + + inputs_drop(s, info, n, target->length); + pa_source_post(s->monitor_source, target); + + r = 0; + +finish: + pa_sink_unref(s); + + return r; +} + +void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target) { + pa_memchunk chunk; + size_t l, d; + + assert(s); + assert(s->ref >= 1); + assert(target); + assert(target->memblock); + assert(target->length); + assert(target->memblock->data); + + pa_sink_ref(s); + + l = target->length; + d = 0; + while (l > 0) { + chunk = *target; + chunk.index += d; + chunk.length -= d; + + if (pa_sink_render_into(s, &chunk) < 0) + break; + + d += chunk.length; + l -= chunk.length; + } + + if (l > 0) { + chunk = *target; + chunk.index += d; + chunk.length -= d; + pa_silence_memchunk(&chunk, &s->sample_spec); + } + + pa_sink_unref(s); +} + +void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result) { + assert(s); + assert(s->ref >= 1); + assert(length); + assert(result); + + /*** This needs optimization ***/ + + result->memblock = pa_memblock_new(result->length = length, s->core->memblock_stat); + result->index = 0; + + pa_sink_render_into_full(s, result); +} + +pa_usec_t pa_sink_get_latency(pa_sink *s) { + assert(s); + assert(s->ref >= 1); + + if (!s->get_latency) + return 0; + + return s->get_latency(s); +} + +void pa_sink_set_owner(pa_sink *s, pa_module *m) { + assert(s); + assert(s->ref >= 1); + + s->owner = m; + + if (s->monitor_source) + pa_source_set_owner(s->monitor_source, m); +} + +void pa_sink_set_volume(pa_sink *s, pa_mixer_t m, const pa_cvolume *volume) { + pa_cvolume *v; + + assert(s); + assert(s->ref >= 1); + assert(volume); + + if (m == PA_MIXER_HARDWARE && s->set_hw_volume) + v = &s->hw_volume; + else + v = &s->sw_volume; + + if (pa_cvolume_equal(v, volume)) + return; + + *v = *volume; + + if (v == &s->hw_volume) + if (s->set_hw_volume(s) < 0) + s->sw_volume = *volume; + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); +} + +const pa_cvolume *pa_sink_get_volume(pa_sink *s, pa_mixer_t m) { + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_volume) { + + if (s->get_hw_volume) + s->get_hw_volume(s); + + return &s->hw_volume; + } else + return &s->sw_volume; +} + +void pa_sink_set_mute(pa_sink *s, pa_mixer_t m, int mute) { + int *t; + + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_mute) + t = &s->hw_muted; + else + t = &s->sw_muted; + + if (!!*t == !!mute) + return; + + *t = !!mute; + + if (t == &s->hw_muted) + if (s->set_hw_mute(s) < 0) + s->sw_muted = !!mute; + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); +} + +int pa_sink_get_mute(pa_sink *s, pa_mixer_t m) { + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_mute) { + + if (s->get_hw_mute) + s->get_hw_mute(s); + + return s->hw_muted; + } else + return s->sw_muted; +} diff --git a/src/pulsecore/sink.h b/src/pulsecore/sink.h new file mode 100644 index 00000000..fdff0522 --- /dev/null +++ b/src/pulsecore/sink.h @@ -0,0 +1,101 @@ +#ifndef foosinkhfoo +#define foosinkhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +typedef struct pa_sink pa_sink; + +#include <pulse/sample.h> +#include <pulse/channelmap.h> +#include <pulse/volume.h> +#include <pulsecore/core-def.h> +#include <pulsecore/core.h> +#include <pulsecore/idxset.h> +#include <pulsecore/source.h> +#include <pulsecore/module.h> + +#define PA_MAX_INPUTS_PER_SINK 32 + +typedef enum pa_sink_state { + PA_SINK_RUNNING, + PA_SINK_DISCONNECTED +} pa_sink_state_t; + +struct pa_sink { + int ref; + uint32_t index; + pa_core *core; + pa_sink_state_t state; + + char *name, *description, *driver; + pa_module *owner; + + pa_sample_spec sample_spec; + pa_channel_map channel_map; + + pa_idxset *inputs; + pa_source *monitor_source; + + pa_cvolume hw_volume, sw_volume; + int hw_muted, sw_muted; + + void (*notify)(pa_sink*sink); + pa_usec_t (*get_latency)(pa_sink *s); + int (*set_hw_volume)(pa_sink *s); + int (*get_hw_volume)(pa_sink *s); + int (*set_hw_mute)(pa_sink *s); + int (*get_hw_mute)(pa_sink *s); + + void *userdata; +}; + +pa_sink* pa_sink_new( + pa_core *core, + const char *driver, + const char *name, + int namereg_fail, + const pa_sample_spec *spec, + const pa_channel_map *map); + +void pa_sink_disconnect(pa_sink* s); +void pa_sink_unref(pa_sink*s); +pa_sink* pa_sink_ref(pa_sink *s); + +int pa_sink_render(pa_sink*s, size_t length, pa_memchunk *result); +void pa_sink_render_full(pa_sink *s, size_t length, pa_memchunk *result); +int pa_sink_render_into(pa_sink*s, pa_memchunk *target); +void pa_sink_render_into_full(pa_sink *s, pa_memchunk *target); + +pa_usec_t pa_sink_get_latency(pa_sink *s); + +void pa_sink_notify(pa_sink*s); + +void pa_sink_set_owner(pa_sink *sink, pa_module *m); + +void pa_sink_set_volume(pa_sink *sink, pa_mixer_t m, const pa_cvolume *volume); +const pa_cvolume *pa_sink_get_volume(pa_sink *sink, pa_mixer_t m); +void pa_sink_set_mute(pa_sink *sink, pa_mixer_t m, int mute); +int pa_sink_get_mute(pa_sink *sink, pa_mixer_t m); + +#endif diff --git a/src/pulsecore/sioman.c b/src/pulsecore/sioman.c new file mode 100644 index 00000000..d84010ee --- /dev/null +++ b/src/pulsecore/sioman.c @@ -0,0 +1,43 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <assert.h> + +#include "sioman.h" + +static int stdio_inuse = 0; + +int pa_stdio_acquire(void) { + if (stdio_inuse) + return -1; + + stdio_inuse = 1; + return 0; +} + +void pa_stdio_release(void) { + assert(stdio_inuse); + stdio_inuse = 0; +} diff --git a/src/pulsecore/sioman.h b/src/pulsecore/sioman.h new file mode 100644 index 00000000..cd04d140 --- /dev/null +++ b/src/pulsecore/sioman.h @@ -0,0 +1,28 @@ +#ifndef foosiomanhfoo +#define foosiomanhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +int pa_stdio_acquire(void); +void pa_stdio_release(void); + +#endif diff --git a/src/pulsecore/socket-client.c b/src/pulsecore/socket-client.c new file mode 100644 index 00000000..8e547614 --- /dev/null +++ b/src/pulsecore/socket-client.c @@ -0,0 +1,526 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +/* #undef HAVE_LIBASYNCNS */ + +#include <unistd.h> +#include <stdio.h> +#include <errno.h> +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_SYS_UN_H +#include <sys/un.h> +#endif +#ifdef HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif + +#ifdef HAVE_LIBASYNCNS +#include <asyncns.h> +#endif + +#include "winsock.h" + +#include <pulse/timeval.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/core-error.h> +#include <pulsecore/socket-util.h> +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> +#include <pulsecore/parseaddr.h> + +#include "socket-client.h" + +#define CONNECT_TIMEOUT 5 + +struct pa_socket_client { + int ref; + pa_mainloop_api *mainloop; + int fd; + pa_io_event *io_event; + pa_time_event *timeout_event; + pa_defer_event *defer_event; + void (*callback)(pa_socket_client*c, pa_iochannel *io, void *userdata); + void *userdata; + int local; +#ifdef HAVE_LIBASYNCNS + asyncns_t *asyncns; + asyncns_query_t * asyncns_query; + pa_io_event *asyncns_io_event; +#endif +}; + +static pa_socket_client*pa_socket_client_new(pa_mainloop_api *m) { + pa_socket_client *c; + assert(m); + + c = pa_xmalloc(sizeof(pa_socket_client)); + c->ref = 1; + c->mainloop = m; + c->fd = -1; + c->io_event = NULL; + c->defer_event = NULL; + c->timeout_event = NULL; + c->callback = NULL; + c->userdata = NULL; + c->local = 0; + +#ifdef HAVE_LIBASYNCNS + c->asyncns = NULL; + c->asyncns_io_event = NULL; + c->asyncns_query = NULL; +#endif + + return c; +} + +static void free_events(pa_socket_client *c) { + assert(c); + + if (c->io_event) { + c->mainloop->io_free(c->io_event); + c->io_event = NULL; + } + + if (c->defer_event) { + c->mainloop->defer_free(c->defer_event); + c->defer_event = NULL; + } + + if (c->timeout_event) { + c->mainloop->time_free(c->timeout_event); + c->timeout_event = NULL; + } +} + +static void do_call(pa_socket_client *c) { + pa_iochannel *io = NULL; + int error; + socklen_t lerror; + assert(c && c->callback); + + pa_socket_client_ref(c); + + if (c->fd < 0) + goto finish; + + lerror = sizeof(error); + if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void*)&error, &lerror) < 0) { + pa_log(__FILE__": getsockopt(): %s", pa_cstrerror(errno)); + goto finish; + } + + if (lerror != sizeof(error)) { + pa_log(__FILE__": getsockopt() returned invalid size."); + goto finish; + } + + if (error != 0) { + pa_log_debug(__FILE__": connect(): %s", pa_cstrerror(errno)); + errno = error; + goto finish; + } + + io = pa_iochannel_new(c->mainloop, c->fd, c->fd); + assert(io); + +finish: + if (!io && c->fd >= 0) + close(c->fd); + c->fd = -1; + + free_events(c); + + assert(c->callback); + c->callback(c, io, c->userdata); + + pa_socket_client_unref(c); +} + +static void connect_fixed_cb(pa_mainloop_api *m, pa_defer_event *e, void *userdata) { + pa_socket_client *c = userdata; + assert(m && c && c->defer_event == e); + do_call(c); +} + +static void connect_io_cb(pa_mainloop_api*m, pa_io_event *e, int fd, PA_GCC_UNUSED pa_io_event_flags_t f, void *userdata) { + pa_socket_client *c = userdata; + assert(m && c && c->io_event == e && fd >= 0); + do_call(c); +} + +static int do_connect(pa_socket_client *c, const struct sockaddr *sa, socklen_t len) { + int r; + assert(c && sa && len); + + pa_make_nonblock_fd(c->fd); + + if ((r = connect(c->fd, sa, len)) < 0) { +#ifdef OS_IS_WIN32 + if (WSAGetLastError() != EWOULDBLOCK) { + pa_log_debug(__FILE__": connect(): %d", WSAGetLastError()); +#else + if (errno != EINPROGRESS) { + pa_log_debug(__FILE__": connect(): %s (%d)", pa_cstrerror(errno), errno); +#endif + return -1; + } + + c->io_event = c->mainloop->io_new(c->mainloop, c->fd, PA_IO_EVENT_OUTPUT, connect_io_cb, c); + assert(c->io_event); + } else { + c->defer_event = c->mainloop->defer_new(c->mainloop, connect_fixed_cb, c); + assert(c->defer_event); + } + + return 0; +} + +pa_socket_client* pa_socket_client_new_ipv4(pa_mainloop_api *m, uint32_t address, uint16_t port) { + struct sockaddr_in sa; + assert(m && port > 0); + + memset(&sa, 0, sizeof(sa)); + sa.sin_family = AF_INET; + sa.sin_port = htons(port); + sa.sin_addr.s_addr = htonl(address); + + return pa_socket_client_new_sockaddr(m, (struct sockaddr*) &sa, sizeof(sa)); +} + +#ifdef HAVE_SYS_UN_H + +pa_socket_client* pa_socket_client_new_unix(pa_mainloop_api *m, const char *filename) { + struct sockaddr_un sa; + assert(m && filename); + + memset(&sa, 0, sizeof(sa)); + sa.sun_family = AF_UNIX; + strncpy(sa.sun_path, filename, sizeof(sa.sun_path)-1); + sa.sun_path[sizeof(sa.sun_path) - 1] = 0; + + return pa_socket_client_new_sockaddr(m, (struct sockaddr*) &sa, sizeof(sa)); +} + +#else /* HAVE_SYS_UN_H */ + +pa_socket_client* pa_socket_client_new_unix(pa_mainloop_api *m, const char *filename) { + return NULL; +} + +#endif /* HAVE_SYS_UN_H */ + +static int sockaddr_prepare(pa_socket_client *c, const struct sockaddr *sa, size_t salen) { + assert(c); + assert(sa); + assert(salen); + + switch (sa->sa_family) { + case AF_UNIX: + c->local = 1; + break; + + case AF_INET: + c->local = ((const struct sockaddr_in*) sa)->sin_addr.s_addr == INADDR_LOOPBACK; + break; + + case AF_INET6: + c->local = memcmp(&((const struct sockaddr_in6*) sa)->sin6_addr, &in6addr_loopback, sizeof(struct in6_addr)) == 0; + break; + + default: + c->local = 0; + } + + if ((c->fd = socket(sa->sa_family, SOCK_STREAM, 0)) < 0) { + pa_log(__FILE__": socket(): %s", pa_cstrerror(errno)); + return -1; + } + + pa_fd_set_cloexec(c->fd, 1); + if (sa->sa_family == AF_INET || sa->sa_family == AF_INET6) + pa_socket_tcp_low_delay(c->fd); + else + pa_socket_low_delay(c->fd); + + if (do_connect(c, sa, salen) < 0) + return -1; + + return 0; +} + +pa_socket_client* pa_socket_client_new_sockaddr(pa_mainloop_api *m, const struct sockaddr *sa, size_t salen) { + pa_socket_client *c; + assert(m && sa); + c = pa_socket_client_new(m); + assert(c); + + if (sockaddr_prepare(c, sa, salen) < 0) + goto fail; + + return c; + +fail: + pa_socket_client_unref(c); + return NULL; + +} + +static void socket_client_free(pa_socket_client *c) { + assert(c && c->mainloop); + + + free_events(c); + + if (c->fd >= 0) + close(c->fd); + +#ifdef HAVE_LIBASYNCNS + if (c->asyncns_query) + asyncns_cancel(c->asyncns, c->asyncns_query); + if (c->asyncns) + asyncns_free(c->asyncns); + if (c->asyncns_io_event) + c->mainloop->io_free(c->asyncns_io_event); +#endif + + pa_xfree(c); +} + +void pa_socket_client_unref(pa_socket_client *c) { + assert(c && c->ref >= 1); + + if (!(--(c->ref))) + socket_client_free(c); +} + +pa_socket_client* pa_socket_client_ref(pa_socket_client *c) { + assert(c && c->ref >= 1); + c->ref++; + return c; +} + +void pa_socket_client_set_callback(pa_socket_client *c, void (*on_connection)(pa_socket_client *c, pa_iochannel*io, void *userdata), void *userdata) { + assert(c); + c->callback = on_connection; + c->userdata = userdata; +} + +pa_socket_client* pa_socket_client_new_ipv6(pa_mainloop_api *m, uint8_t address[16], uint16_t port) { + struct sockaddr_in6 sa; + + memset(&sa, 0, sizeof(sa)); + sa.sin6_family = AF_INET6; + sa.sin6_port = htons(port); + memcpy(&sa.sin6_addr, address, sizeof(sa.sin6_addr)); + + return pa_socket_client_new_sockaddr(m, (struct sockaddr*) &sa, sizeof(sa)); +} + +#ifdef HAVE_LIBASYNCNS + +static void asyncns_cb(pa_mainloop_api*m, pa_io_event *e, int fd, PA_GCC_UNUSED pa_io_event_flags_t f, void *userdata) { + pa_socket_client *c = userdata; + struct addrinfo *res = NULL; + int ret; + assert(m && c && c->asyncns_io_event == e && fd >= 0); + + if (asyncns_wait(c->asyncns, 0) < 0) + goto fail; + + if (!asyncns_isdone(c->asyncns, c->asyncns_query)) + return; + + ret = asyncns_getaddrinfo_done(c->asyncns, c->asyncns_query, &res); + c->asyncns_query = NULL; + + if (ret != 0 || !res) + goto fail; + + if (res->ai_addr) + sockaddr_prepare(c, res->ai_addr, res->ai_addrlen); + + asyncns_freeaddrinfo(res); + + m->io_free(c->asyncns_io_event); + c->asyncns_io_event = NULL; + return; + +fail: + m->io_free(c->asyncns_io_event); + c->asyncns_io_event = NULL; + + errno = EHOSTUNREACH; + do_call(c); + return; + +} + +#endif + +static void timeout_cb(pa_mainloop_api *m, pa_time_event *e, const struct timeval *tv, void *userdata) { + pa_socket_client *c = userdata; + assert(m); + assert(e); + assert(tv); + assert(c); + + if (c->fd >= 0) { + close(c->fd); + c->fd = -1; + } + + errno = ETIMEDOUT; + do_call(c); +} + +static void start_timeout(pa_socket_client *c) { + struct timeval tv; + assert(c); + assert(!c->timeout_event); + + pa_gettimeofday(&tv); + pa_timeval_add(&tv, CONNECT_TIMEOUT * 1000000); + c->timeout_event = c->mainloop->time_new(c->mainloop, &tv, timeout_cb, c); +} + +pa_socket_client* pa_socket_client_new_string(pa_mainloop_api *m, const char*name, uint16_t default_port) { + pa_socket_client *c = NULL; + pa_parsed_address a; + assert(m && name); + + if (pa_parse_address(name, &a) < 0) + return NULL; + + if (!a.port) + a.port = default_port; + + switch (a.type) { + case PA_PARSED_ADDRESS_UNIX: + if ((c = pa_socket_client_new_unix(m, a.path_or_host))) + start_timeout(c); + break; + + case PA_PARSED_ADDRESS_TCP4: /* Fallthrough */ + case PA_PARSED_ADDRESS_TCP6: /* Fallthrough */ + case PA_PARSED_ADDRESS_TCP_AUTO:{ + + struct addrinfo hints; + char port[12]; + + snprintf(port, sizeof(port), "%u", (unsigned) a.port); + + memset(&hints, 0, sizeof(hints)); + hints.ai_family = a.type == PA_PARSED_ADDRESS_TCP4 ? PF_INET : (a.type == PA_PARSED_ADDRESS_TCP6 ? PF_INET6 : PF_UNSPEC); + hints.ai_socktype = SOCK_STREAM; + +#ifdef HAVE_LIBASYNCNS + { + asyncns_t *asyncns; + + if (!(asyncns = asyncns_new(1))) + goto finish; + + c = pa_socket_client_new(m); + c->asyncns = asyncns; + c->asyncns_io_event = m->io_new(m, asyncns_fd(c->asyncns), PA_IO_EVENT_INPUT, asyncns_cb, c); + c->asyncns_query = asyncns_getaddrinfo(c->asyncns, a.path_or_host, port, &hints); + assert(c->asyncns_query); + start_timeout(c); + } +#else /* HAVE_LIBASYNCNS */ + { +#ifdef HAVE_GETADDRINFO + int ret; + struct addrinfo *res = NULL; + + ret = getaddrinfo(a.path_or_host, port, &hints, &res); + + if (ret < 0 || !res) + goto finish; + + if (res->ai_addr) { + if ((c = pa_socket_client_new_sockaddr(m, res->ai_addr, res->ai_addrlen))) + start_timeout(c); + } + + freeaddrinfo(res); +#else /* HAVE_GETADDRINFO */ + struct hostent *host = NULL; + struct sockaddr_in s; + + /* FIXME: PF_INET6 support */ + if (hints.ai_family == PF_INET6) { + pa_log_error(__FILE__": IPv6 is not supported on Windows"); + goto finish; + } + + host = gethostbyname(a.path_or_host); + if (!host) { + unsigned int addr = inet_addr(a.path_or_host); + if (addr != INADDR_NONE) + host = gethostbyaddr((char*)&addr, 4, AF_INET); + } + + if (!host) + goto finish; + + s.sin_family = AF_INET; + memcpy(&s.sin_addr, host->h_addr, sizeof(struct in_addr)); + s.sin_port = htons(a.port); + + if ((c = pa_socket_client_new_sockaddr(m, (struct sockaddr*)&s, sizeof(s)))) + start_timeout(c); +#endif /* HAVE_GETADDRINFO */ + } +#endif /* HAVE_LIBASYNCNS */ + } + } + +finish: + pa_xfree(a.path_or_host); + return c; + +} + +/* Return non-zero when the target sockaddr is considered + local. "local" means UNIX socket or TCP socket on localhost. Other + local IP addresses are not considered local. */ +int pa_socket_client_is_local(pa_socket_client *c) { + assert(c); + return c->local; +} diff --git a/src/pulsecore/socket-client.h b/src/pulsecore/socket-client.h new file mode 100644 index 00000000..47e7cd5a --- /dev/null +++ b/src/pulsecore/socket-client.h @@ -0,0 +1,47 @@ +#ifndef foosocketclienthfoo +#define foosocketclienthfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +#include <pulse/mainloop-api.h> +#include <pulsecore/iochannel.h> + +struct sockaddr; + +typedef struct pa_socket_client pa_socket_client; + +pa_socket_client* pa_socket_client_new_ipv4(pa_mainloop_api *m, uint32_t address, uint16_t port); +pa_socket_client* pa_socket_client_new_ipv6(pa_mainloop_api *m, uint8_t address[16], uint16_t port); +pa_socket_client* pa_socket_client_new_unix(pa_mainloop_api *m, const char *filename); +pa_socket_client* pa_socket_client_new_sockaddr(pa_mainloop_api *m, const struct sockaddr *sa, size_t salen); +pa_socket_client* pa_socket_client_new_string(pa_mainloop_api *m, const char *a, uint16_t default_port); + +void pa_socket_client_unref(pa_socket_client *c); +pa_socket_client* pa_socket_client_ref(pa_socket_client *c); + +void pa_socket_client_set_callback(pa_socket_client *c, void (*on_connection)(pa_socket_client *c, pa_iochannel*io, void *userdata), void *userdata); + +int pa_socket_client_is_local(pa_socket_client *c); + +#endif diff --git a/src/pulsecore/socket-server.c b/src/pulsecore/socket-server.c new file mode 100644 index 00000000..77ea13e7 --- /dev/null +++ b/src/pulsecore/socket-server.c @@ -0,0 +1,505 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <errno.h> +#include <string.h> +#include <sys/types.h> +#include <stdio.h> +#include <unistd.h> + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_SYS_UN_H +#include <sys/un.h> +#ifndef SUN_LEN +#define SUN_LEN(ptr) \ + ((size_t)(((struct sockaddr_un *) 0)->sun_path) + strlen((ptr)->sun_path)) +#endif +#endif +#ifdef HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif + +#ifdef HAVE_LIBWRAP +#include <tcpd.h> +#endif + +#ifndef HAVE_INET_NTOP +#include "inet_ntop.h" +#endif + +#ifndef HAVE_INET_PTON +#include "inet_pton.h" +#endif + +#include "winsock.h" + +#include <pulse/xmalloc.h> +#include <pulse/util.h> + +#include <pulsecore/socket-util.h> +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> +#include <pulsecore/core-error.h> + +#include "socket-server.h" + +struct pa_socket_server { + int ref; + int fd; + char *filename; + char *tcpwrap_service; + + void (*on_connection)(pa_socket_server*s, pa_iochannel *io, void *userdata); + void *userdata; + + pa_io_event *io_event; + pa_mainloop_api *mainloop; + enum { SOCKET_SERVER_GENERIC, SOCKET_SERVER_IPV4, SOCKET_SERVER_UNIX, SOCKET_SERVER_IPV6 } type; +}; + +static void callback(pa_mainloop_api *mainloop, pa_io_event *e, int fd, PA_GCC_UNUSED pa_io_event_flags_t f, void *userdata) { + pa_socket_server *s = userdata; + pa_iochannel *io; + int nfd; + assert(s && s->mainloop == mainloop && s->io_event == e && e && fd >= 0 && fd == s->fd); + + pa_socket_server_ref(s); + + if ((nfd = accept(fd, NULL, NULL)) < 0) { + pa_log(__FILE__": accept(): %s", pa_cstrerror(errno)); + goto finish; + } + + pa_fd_set_cloexec(nfd, 1); + + if (!s->on_connection) { + close(nfd); + goto finish; + } + +#ifdef HAVE_LIBWRAP + + if (s->tcpwrap_service) { + struct request_info req; + + request_init(&req, RQ_DAEMON, s->tcpwrap_service, RQ_FILE, nfd, NULL); + fromhost(&req); + if (!hosts_access(&req)) { + pa_log_warn(__FILE__": TCP connection refused by tcpwrap."); + close(nfd); + goto finish; + } + + pa_log_info(__FILE__": TCP connection accepted by tcpwrap."); + } +#endif + + /* There should be a check for socket type here */ + if (s->type == SOCKET_SERVER_IPV4) + pa_socket_tcp_low_delay(fd); + else + pa_socket_low_delay(fd); + + io = pa_iochannel_new(s->mainloop, nfd, nfd); + assert(io); + s->on_connection(s, io, s->userdata); + +finish: + pa_socket_server_unref(s); +} + +pa_socket_server* pa_socket_server_new(pa_mainloop_api *m, int fd) { + pa_socket_server *s; + assert(m && fd >= 0); + + s = pa_xmalloc(sizeof(pa_socket_server)); + s->ref = 1; + s->fd = fd; + s->filename = NULL; + s->on_connection = NULL; + s->userdata = NULL; + s->tcpwrap_service = NULL; + + s->mainloop = m; + s->io_event = m->io_new(m, fd, PA_IO_EVENT_INPUT, callback, s); + assert(s->io_event); + + s->type = SOCKET_SERVER_GENERIC; + + return s; +} + +pa_socket_server* pa_socket_server_ref(pa_socket_server *s) { + assert(s && s->ref >= 1); + s->ref++; + return s; +} + +#ifdef HAVE_SYS_UN_H + +pa_socket_server* pa_socket_server_new_unix(pa_mainloop_api *m, const char *filename) { + int fd = -1; + struct sockaddr_un sa; + pa_socket_server *s; + + assert(m && filename); + + if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) { + pa_log(__FILE__": socket(): %s", pa_cstrerror(errno)); + goto fail; + } + + pa_fd_set_cloexec(fd, 1); + + sa.sun_family = AF_UNIX; + strncpy(sa.sun_path, filename, sizeof(sa.sun_path)-1); + sa.sun_path[sizeof(sa.sun_path) - 1] = 0; + + pa_socket_low_delay(fd); + + if (bind(fd, (struct sockaddr*) &sa, SUN_LEN(&sa)) < 0) { + pa_log(__FILE__": bind(): %s", pa_cstrerror(errno)); + goto fail; + } + + if (listen(fd, 5) < 0) { + pa_log(__FILE__": listen(): %s", pa_cstrerror(errno)); + goto fail; + } + + s = pa_socket_server_new(m, fd); + assert(s); + + s->filename = pa_xstrdup(filename); + s->type = SOCKET_SERVER_UNIX; + + return s; + +fail: + if (fd >= 0) + close(fd); + + return NULL; +} + +#else /* HAVE_SYS_UN_H */ + +pa_socket_server* pa_socket_server_new_unix(pa_mainloop_api *m, const char *filename) { + return NULL; +} + +#endif /* HAVE_SYS_UN_H */ + +pa_socket_server* pa_socket_server_new_ipv4(pa_mainloop_api *m, uint32_t address, uint16_t port, const char *tcpwrap_service) { + pa_socket_server *ss; + int fd = -1; + struct sockaddr_in sa; + int on = 1; + + assert(m && port); + + if ((fd = socket(PF_INET, SOCK_STREAM, 0)) < 0) { + pa_log(__FILE__": socket(PF_INET): %s", pa_cstrerror(errno)); + goto fail; + } + + pa_fd_set_cloexec(fd, 1); + +#ifdef SO_REUSEADDR + if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0) + pa_log(__FILE__": setsockopt(): %s", pa_cstrerror(errno)); +#endif + + pa_socket_tcp_low_delay(fd); + + memset(&sa, 0, sizeof(sa)); + sa.sin_family = AF_INET; + sa.sin_port = htons(port); + sa.sin_addr.s_addr = htonl(address); + + if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) { + pa_log(__FILE__": bind(): %s", pa_cstrerror(errno)); + goto fail; + } + + if (listen(fd, 5) < 0) { + pa_log(__FILE__": listen(): %s", pa_cstrerror(errno)); + goto fail; + } + + if ((ss = pa_socket_server_new(m, fd))) { + ss->type = SOCKET_SERVER_IPV4; + ss->tcpwrap_service = pa_xstrdup(tcpwrap_service); + } + + return ss; + +fail: + if (fd >= 0) + close(fd); + + return NULL; +} + +pa_socket_server* pa_socket_server_new_ipv6(pa_mainloop_api *m, const uint8_t address[16], uint16_t port, const char *tcpwrap_service) { + pa_socket_server *ss; + int fd = -1; + struct sockaddr_in6 sa; + int on = 1; + + assert(m && port); + + if ((fd = socket(PF_INET6, SOCK_STREAM, 0)) < 0) { + pa_log(__FILE__": socket(PF_INET6): %s", pa_cstrerror(errno)); + goto fail; + } + + pa_fd_set_cloexec(fd, 1); + +#ifdef IPV6_V6ONLY + if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on)) < 0) + pa_log(__FILE__": setsockopt(IPPROTO_IPV6, IPV6_V6ONLY): %s", pa_cstrerror(errno)); +#endif + +#ifdef SO_REUSEADDR + if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on)) < 0) + pa_log(__FILE__": setsockopt(SOL_SOCKET, SO_REUSEADDR, 1): %s", pa_cstrerror(errno)); +#endif + + pa_socket_tcp_low_delay(fd); + + memset(&sa, 0, sizeof(sa)); + sa.sin6_family = AF_INET6; + sa.sin6_port = htons(port); + memcpy(sa.sin6_addr.s6_addr, address, 16); + + if (bind(fd, (struct sockaddr *) &sa, sizeof(sa)) < 0) { + pa_log(__FILE__": bind(): %s", pa_cstrerror(errno)); + goto fail; + } + + if (listen(fd, 5) < 0) { + pa_log(__FILE__": listen(): %s", pa_cstrerror(errno)); + goto fail; + } + + if ((ss = pa_socket_server_new(m, fd))) { + ss->type = SOCKET_SERVER_IPV6; + ss->tcpwrap_service = pa_xstrdup(tcpwrap_service); + } + + return ss; + +fail: + if (fd >= 0) + close(fd); + + return NULL; +} + +pa_socket_server* pa_socket_server_new_ipv4_loopback(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) { + assert(m); + assert(port > 0); + + return pa_socket_server_new_ipv4(m, INADDR_LOOPBACK, port, tcpwrap_service); +} + +pa_socket_server* pa_socket_server_new_ipv6_loopback(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) { + assert(m); + assert(port > 0); + + return pa_socket_server_new_ipv6(m, in6addr_loopback.s6_addr, port, tcpwrap_service); +} + +pa_socket_server* pa_socket_server_new_ipv4_any(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) { + assert(m); + assert(port > 0); + + return pa_socket_server_new_ipv4(m, INADDR_ANY, port, tcpwrap_service); +} + +pa_socket_server* pa_socket_server_new_ipv6_any(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service) { + assert(m); + assert(port > 0); + + return pa_socket_server_new_ipv6(m, in6addr_any.s6_addr, port, tcpwrap_service); +} + +pa_socket_server* pa_socket_server_new_ipv4_string(pa_mainloop_api *m, const char *name, uint16_t port, const char *tcpwrap_service) { + struct in_addr ipv4; + + assert(m); + assert(name); + assert(port > 0); + + if (inet_pton(AF_INET, name, &ipv4) > 0) + return pa_socket_server_new_ipv4(m, ntohl(ipv4.s_addr), port, tcpwrap_service); + + return NULL; +} + +pa_socket_server* pa_socket_server_new_ipv6_string(pa_mainloop_api *m, const char *name, uint16_t port, const char *tcpwrap_service) { + struct in6_addr ipv6; + + assert(m); + assert(name); + assert(port > 0); + + if (inet_pton(AF_INET6, name, &ipv6) > 0) + return pa_socket_server_new_ipv6(m, ipv6.s6_addr, port, tcpwrap_service); + + return NULL; +} + +static void socket_server_free(pa_socket_server*s) { + assert(s); + + if (s->filename) { + unlink(s->filename); + pa_xfree(s->filename); + } + + close(s->fd); + + pa_xfree(s->tcpwrap_service); + + s->mainloop->io_free(s->io_event); + pa_xfree(s); +} + +void pa_socket_server_unref(pa_socket_server *s) { + assert(s && s->ref >= 1); + + if (!(--(s->ref))) + socket_server_free(s); +} + +void pa_socket_server_set_callback(pa_socket_server*s, void (*on_connection)(pa_socket_server*s, pa_iochannel *io, void *userdata), void *userdata) { + assert(s && s->ref >= 1); + + s->on_connection = on_connection; + s->userdata = userdata; +} + +char *pa_socket_server_get_address(pa_socket_server *s, char *c, size_t l) { + assert(s && c && l > 0); + + switch (s->type) { + case SOCKET_SERVER_IPV6: { + struct sockaddr_in6 sa; + socklen_t sa_len = sizeof(sa); + + if (getsockname(s->fd, (struct sockaddr*) &sa, &sa_len) < 0) { + pa_log(__FILE__": getsockname(): %s", pa_cstrerror(errno)); + return NULL; + } + + if (memcmp(&in6addr_any, &sa.sin6_addr, sizeof(in6addr_any)) == 0) { + char fqdn[256]; + if (!pa_get_fqdn(fqdn, sizeof(fqdn))) + return NULL; + + snprintf(c, l, "tcp6:%s:%u", fqdn, (unsigned) ntohs(sa.sin6_port)); + + } else if (memcmp(&in6addr_loopback, &sa.sin6_addr, sizeof(in6addr_loopback)) == 0) { + char hn[256]; + if (!pa_get_host_name(hn, sizeof(hn))) + return NULL; + + snprintf(c, l, "{%s}tcp6:localhost:%u", hn, (unsigned) ntohs(sa.sin6_port)); + } else { + char ip[INET6_ADDRSTRLEN]; + + if (!inet_ntop(AF_INET6, &sa.sin6_addr, ip, sizeof(ip))) { + pa_log(__FILE__": inet_ntop(): %s", pa_cstrerror(errno)); + return NULL; + } + + snprintf(c, l, "tcp6:[%s]:%u", ip, (unsigned) ntohs(sa.sin6_port)); + } + + return c; + } + + case SOCKET_SERVER_IPV4: { + struct sockaddr_in sa; + socklen_t sa_len = sizeof(sa); + + if (getsockname(s->fd, (struct sockaddr*) &sa, &sa_len) < 0) { + pa_log(__FILE__": getsockname(): %s", pa_cstrerror(errno)); + return NULL; + } + + if (sa.sin_addr.s_addr == INADDR_ANY) { + char fqdn[256]; + if (!pa_get_fqdn(fqdn, sizeof(fqdn))) + return NULL; + + snprintf(c, l, "tcp:%s:%u", fqdn, (unsigned) ntohs(sa.sin_port)); + } else if (sa.sin_addr.s_addr == INADDR_LOOPBACK) { + char hn[256]; + if (!pa_get_host_name(hn, sizeof(hn))) + return NULL; + + snprintf(c, l, "{%s}tcp:localhost:%u", hn, (unsigned) ntohs(sa.sin_port)); + } else { + char ip[INET_ADDRSTRLEN]; + + if (!inet_ntop(AF_INET, &sa.sin_addr, ip, sizeof(ip))) { + pa_log(__FILE__": inet_ntop(): %s", pa_cstrerror(errno)); + return NULL; + } + + snprintf(c, l, "tcp:[%s]:%u", ip, (unsigned) ntohs(sa.sin_port)); + + } + + return c; + } + + case SOCKET_SERVER_UNIX: { + char hn[256]; + + if (!s->filename) + return NULL; + + if (!pa_get_host_name(hn, sizeof(hn))) + return NULL; + + snprintf(c, l, "{%s}unix:%s", hn, s->filename); + return c; + } + + default: + return NULL; + } +} diff --git a/src/pulsecore/socket-server.h b/src/pulsecore/socket-server.h new file mode 100644 index 00000000..d90c8194 --- /dev/null +++ b/src/pulsecore/socket-server.h @@ -0,0 +1,51 @@ +#ifndef foosocketserverhfoo +#define foosocketserverhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> +#include <pulse/mainloop-api.h> +#include <pulsecore/iochannel.h> + +/* It is safe to destroy the calling socket_server object from the callback */ + +typedef struct pa_socket_server pa_socket_server; + +pa_socket_server* pa_socket_server_new(pa_mainloop_api *m, int fd); +pa_socket_server* pa_socket_server_new_unix(pa_mainloop_api *m, const char *filename); +pa_socket_server* pa_socket_server_new_ipv4(pa_mainloop_api *m, uint32_t address, uint16_t port, const char *tcpwrap_service); +pa_socket_server* pa_socket_server_new_ipv6(pa_mainloop_api *m, const uint8_t address[16], uint16_t port, const char *tcpwrap_service); +pa_socket_server* pa_socket_server_new_ipv4_loopback(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service); +pa_socket_server* pa_socket_server_new_ipv6_loopback(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service); +pa_socket_server* pa_socket_server_new_ipv4_any(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service); +pa_socket_server* pa_socket_server_new_ipv6_any(pa_mainloop_api *m, uint16_t port, const char *tcpwrap_service); +pa_socket_server* pa_socket_server_new_ipv4_string(pa_mainloop_api *m, const char *name, uint16_t port, const char *tcpwrap_service); +pa_socket_server* pa_socket_server_new_ipv6_string(pa_mainloop_api *m, const char *name, uint16_t port, const char *tcpwrap_service); + +void pa_socket_server_unref(pa_socket_server*s); +pa_socket_server* pa_socket_server_ref(pa_socket_server *s); + +void pa_socket_server_set_callback(pa_socket_server*s, void (*on_connection)(pa_socket_server*s, pa_iochannel *io, void *userdata), void *userdata); + +char *pa_socket_server_get_address(pa_socket_server *s, char *c, size_t l); + +#endif diff --git a/src/pulsecore/socket-util.c b/src/pulsecore/socket-util.c new file mode 100644 index 00000000..8705560d --- /dev/null +++ b/src/pulsecore/socket-util.c @@ -0,0 +1,266 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdarg.h> +#include <stdlib.h> +#include <signal.h> +#include <errno.h> +#include <assert.h> +#include <string.h> +#include <stdio.h> +#include <sys/types.h> +#include <fcntl.h> +#include <unistd.h> +#include <sys/stat.h> + +#ifdef HAVE_SYS_SOCKET_H +#include <sys/socket.h> +#endif +#ifdef HAVE_SYS_UN_H +#include <sys/un.h> +#endif +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif +#ifdef HAVE_NETINET_IN_SYSTM_H +#include <netinet/in_systm.h> +#endif +#ifdef HAVE_NETINET_IP_H +#include <netinet/ip.h> +#endif +#ifdef HAVE_NETINET_TCP_H +#include <netinet/tcp.h> +#endif +#ifdef HAVE_NETDB_H +#include <netdb.h> +#endif +#ifdef HAVE_ARPA_INET_H +#include <arpa/inet.h> +#endif + +#ifndef HAVE_INET_NTOP +#include "inet_ntop.h" +#endif + +#include "winsock.h" + +#include <pulse/xmalloc.h> + +#include <pulsecore/core-error.h> +#include <pulsecore/core-util.h> +#include <pulsecore/log.h> + +#include "socket-util.h" + +void pa_socket_peer_to_string(int fd, char *c, size_t l) { + struct stat st; + + assert(c && l && fd >= 0); + +#ifndef OS_IS_WIN32 + if (fstat(fd, &st) < 0) { + snprintf(c, l, "Invalid client fd"); + return; + } +#endif + +#ifndef OS_IS_WIN32 + if (S_ISSOCK(st.st_mode)) { +#endif + union { + struct sockaddr sa; + struct sockaddr_in in; + struct sockaddr_in6 in6; +#ifdef HAVE_SYS_UN_H + struct sockaddr_un un; +#endif + } sa; + socklen_t sa_len = sizeof(sa); + + if (getpeername(fd, &sa.sa, &sa_len) >= 0) { + + if (sa.sa.sa_family == AF_INET) { + uint32_t ip = ntohl(sa.in.sin_addr.s_addr); + + snprintf(c, l, "TCP/IP client from %i.%i.%i.%i:%u", + ip >> 24, + (ip >> 16) & 0xFF, + (ip >> 8) & 0xFF, + ip & 0xFF, + ntohs(sa.in.sin_port)); + return; + } else if (sa.sa.sa_family == AF_INET6) { + char buf[INET6_ADDRSTRLEN]; + const char *res; + + res = inet_ntop(AF_INET6, &sa.in6.sin6_addr, buf, sizeof(buf)); + if (res) { + snprintf(c, l, "TCP/IP client from [%s]:%u", buf, ntohs(sa.in6.sin6_port)); + return; + } +#ifdef HAVE_SYS_UN_H + } else if (sa.sa.sa_family == AF_UNIX) { + snprintf(c, l, "UNIX socket client"); + return; +#endif + } + + } +#ifndef OS_IS_WIN32 + snprintf(c, l, "Unknown network client"); + return; + } else if (S_ISCHR(st.st_mode) && (fd == 0 || fd == 1)) { + snprintf(c, l, "STDIN/STDOUT client"); + return; + } +#endif /* OS_IS_WIN32 */ + + snprintf(c, l, "Unknown client"); +} + +int pa_socket_low_delay(int fd) { +#ifdef SO_PRIORITY + int priority; + assert(fd >= 0); + + priority = 7; + if (setsockopt(fd, SOL_SOCKET, SO_PRIORITY, (void*)&priority, sizeof(priority)) < 0) + return -1; +#endif + + return 0; +} + +int pa_socket_tcp_low_delay(int fd) { + int ret, tos, on; + + assert(fd >= 0); + + ret = pa_socket_low_delay(fd); + + on = 1; + tos = 0; + +#if defined(SOL_TCP) || defined(IPPROTO_TCP) +#if defined(SOL_TCP) + if (setsockopt(fd, SOL_TCP, TCP_NODELAY, (void*)&on, sizeof(on)) < 0) +#else + if (setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, (void*)&on, sizeof(on)) < 0) +#endif + ret = -1; +#endif + +#if defined(IPTOS_LOWDELAY) && defined(IP_TOS) && (defined(SOL_IP) || \ + defined(IPPROTO_IP)) + tos = IPTOS_LOWDELAY; +#ifdef SOL_IP + if (setsockopt(fd, SOL_IP, IP_TOS, (void*)&tos, sizeof(tos)) < 0) +#else + if (setsockopt(fd, IPPROTO_IP, IP_TOS, (void*)&tos, sizeof(tos)) < 0) +#endif + ret = -1; +#endif + + return ret; + +} + +int pa_socket_set_rcvbuf(int fd, size_t l) { + assert(fd >= 0); + +/* if (setsockopt(fd, SOL_SOCKET, SO_RCVBUF, (void*)&l, sizeof(l)) < 0) { */ +/* pa_log(__FILE__": SO_RCVBUF: %s", strerror(errno)); */ +/* return -1; */ +/* } */ + + return 0; +} + +int pa_socket_set_sndbuf(int fd, size_t l) { + assert(fd >= 0); + +/* if (setsockopt(fd, SOL_SOCKET, SO_SNDBUF, (void*)&l, sizeof(l)) < 0) { */ +/* pa_log(__FILE__": SO_SNDBUF: %s", strerror(errno)); */ +/* return -1; */ +/* } */ + + return 0; +} + +#ifdef HAVE_SYS_UN_H + +int pa_unix_socket_is_stale(const char *fn) { + struct sockaddr_un sa; + int fd = -1, ret = -1; + + if ((fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) { + pa_log(__FILE__": socket(): %s", pa_cstrerror(errno)); + goto finish; + } + + sa.sun_family = AF_UNIX; + strncpy(sa.sun_path, fn, sizeof(sa.sun_path)-1); + sa.sun_path[sizeof(sa.sun_path) - 1] = 0; + + if (connect(fd, (struct sockaddr*) &sa, sizeof(sa)) < 0) { + if (errno == ECONNREFUSED) + ret = 1; + } else + ret = 0; + +finish: + if (fd >= 0) + close(fd); + + return ret; +} + +int pa_unix_socket_remove_stale(const char *fn) { + int r; + + if ((r = pa_unix_socket_is_stale(fn)) < 0) + return errno != ENOENT ? -1 : 0; + + if (!r) + return 0; + + /* Yes, here is a race condition. But who cares? */ + if (unlink(fn) < 0) + return -1; + + return 0; +} + +#else /* HAVE_SYS_UN_H */ + +int pa_unix_socket_is_stale(const char *fn) { + return -1; +} + +int pa_unix_socket_remove_stale(const char *fn) { + return -1; +} + +#endif /* HAVE_SYS_UN_H */ diff --git a/src/pulsecore/socket-util.h b/src/pulsecore/socket-util.h new file mode 100644 index 00000000..f8248ae7 --- /dev/null +++ b/src/pulsecore/socket-util.h @@ -0,0 +1,38 @@ +#ifndef foosocketutilhfoo +#define foosocketutilhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> + +void pa_socket_peer_to_string(int fd, char *c, size_t l); + +int pa_socket_low_delay(int fd); +int pa_socket_tcp_low_delay(int fd); + +int pa_socket_set_sndbuf(int fd, size_t l); +int pa_socket_set_rcvbuf(int fd, size_t l); + +int pa_unix_socket_is_stale(const char *fn); +int pa_unix_socket_remove_stale(const char *fn); + +#endif diff --git a/src/pulsecore/sound-file-stream.c b/src/pulsecore/sound-file-stream.c new file mode 100644 index 00000000..386f5bd0 --- /dev/null +++ b/src/pulsecore/sound-file-stream.c @@ -0,0 +1,192 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <assert.h> +#include <stdio.h> +#include <string.h> + +#include <sndfile.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/sink-input.h> +#include <pulsecore/log.h> + +#include "sound-file-stream.h" + +#define BUF_SIZE (1024*10) + +struct userdata { + SNDFILE *sndfile; + pa_sink_input *sink_input; + pa_memchunk memchunk; + sf_count_t (*readf_function)(SNDFILE *sndfile, void *ptr, sf_count_t frames); +}; + +static void free_userdata(struct userdata *u) { + assert(u); + if (u->sink_input) { + pa_sink_input_disconnect(u->sink_input); + pa_sink_input_unref(u->sink_input); + } + + if (u->memchunk.memblock) + pa_memblock_unref(u->memchunk.memblock); + if (u->sndfile) + sf_close(u->sndfile); + + pa_xfree(u); +} + +static void sink_input_kill(pa_sink_input *i) { + assert(i && i->userdata); + free_userdata(i->userdata); +} + +static int sink_input_peek(pa_sink_input *i, pa_memchunk *chunk) { + struct userdata *u; + assert(i && chunk && i->userdata); + u = i->userdata; + + if (!u->memchunk.memblock) { + uint32_t fs = pa_frame_size(&i->sample_spec); + sf_count_t n; + + u->memchunk.memblock = pa_memblock_new(BUF_SIZE, i->sink->core->memblock_stat); + u->memchunk.index = 0; + + if (u->readf_function) { + if ((n = u->readf_function(u->sndfile, u->memchunk.memblock->data, BUF_SIZE/fs)) <= 0) + n = 0; + + u->memchunk.length = n * fs; + } else { + if ((n = sf_read_raw(u->sndfile, u->memchunk.memblock->data, BUF_SIZE)) <= 0) + n = 0; + + u->memchunk.length = n; + } + + if (!u->memchunk.length) { + free_userdata(u); + return -1; + } + } + + *chunk = u->memchunk; + pa_memblock_ref(chunk->memblock); + assert(chunk->length); + return 0; +} + +static void sink_input_drop(pa_sink_input *i, const pa_memchunk*chunk, size_t length) { + struct userdata *u; + assert(i && chunk && length && i->userdata); + u = i->userdata; + + assert(!memcmp(chunk, &u->memchunk, sizeof(chunk))); + assert(length <= u->memchunk.length); + + u->memchunk.index += length; + u->memchunk.length -= length; + + if (u->memchunk.length <= 0) { + pa_memblock_unref(u->memchunk.memblock); + u->memchunk.memblock = NULL; + u->memchunk.index = u->memchunk.length = 0; + } +} + +int pa_play_file(pa_sink *sink, const char *fname, const pa_cvolume *volume) { + struct userdata *u = NULL; + SF_INFO sfinfo; + pa_sample_spec ss; + assert(sink && fname); + + u = pa_xmalloc(sizeof(struct userdata)); + u->sink_input = NULL; + u->memchunk.memblock = NULL; + u->memchunk.index = u->memchunk.length = 0; + u->sndfile = NULL; + + memset(&sfinfo, 0, sizeof(sfinfo)); + + if (!(u->sndfile = sf_open(fname, SFM_READ, &sfinfo))) { + pa_log(__FILE__": Failed to open file %s", fname); + goto fail; + } + + u->readf_function = NULL; + + switch (sfinfo.format & 0xFF) { + case SF_FORMAT_PCM_16: + case SF_FORMAT_PCM_U8: + case SF_FORMAT_PCM_S8: + ss.format = PA_SAMPLE_S16NE; + u->readf_function = (sf_count_t (*)(SNDFILE *sndfile, void *ptr, sf_count_t frames)) sf_readf_short; + break; + + case SF_FORMAT_ULAW: + ss.format = PA_SAMPLE_ULAW; + break; + + case SF_FORMAT_ALAW: + ss.format = PA_SAMPLE_ALAW; + break; + + case SF_FORMAT_FLOAT: + default: + ss.format = PA_SAMPLE_FLOAT32NE; + u->readf_function = (sf_count_t (*)(SNDFILE *sndfile, void *ptr, sf_count_t frames)) sf_readf_float; + break; + } + + ss.rate = sfinfo.samplerate; + ss.channels = sfinfo.channels; + + if (!pa_sample_spec_valid(&ss)) { + pa_log(__FILE__": Unsupported sample format in file %s", fname); + goto fail; + } + + if (!(u->sink_input = pa_sink_input_new(sink, __FILE__, fname, &ss, NULL, volume, 0, -1))) + goto fail; + + u->sink_input->peek = sink_input_peek; + u->sink_input->drop = sink_input_drop; + u->sink_input->kill = sink_input_kill; + u->sink_input->userdata = u; + + pa_sink_notify(sink); + + return 0; + +fail: + if (u) + free_userdata(u); + + return -1; +} diff --git a/src/pulsecore/sound-file-stream.h b/src/pulsecore/sound-file-stream.h new file mode 100644 index 00000000..28e6a8ba --- /dev/null +++ b/src/pulsecore/sound-file-stream.h @@ -0,0 +1,29 @@ +#ifndef foosoundfilestreamhfoo +#define foosoundfilestreamhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/sink.h> + +int pa_play_file(pa_sink *sink, const char *fname, const pa_cvolume *volume); + +#endif diff --git a/src/pulsecore/sound-file.c b/src/pulsecore/sound-file.c new file mode 100644 index 00000000..d11d4b9d --- /dev/null +++ b/src/pulsecore/sound-file.c @@ -0,0 +1,163 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <assert.h> + +#include <sndfile.h> + +#include <pulse/sample.h> +#include <pulsecore/log.h> + +#include "sound-file.h" +#include "core-scache.h" + +int pa_sound_file_load(const char *fname, pa_sample_spec *ss, pa_channel_map *map, pa_memchunk *chunk, pa_memblock_stat *s) { + SNDFILE*sf = NULL; + SF_INFO sfinfo; + int ret = -1; + size_t l; + sf_count_t (*readf_function)(SNDFILE *sndfile, void *ptr, sf_count_t frames) = NULL; + assert(fname && ss && chunk); + + chunk->memblock = NULL; + chunk->index = chunk->length = 0; + + memset(&sfinfo, 0, sizeof(sfinfo)); + + if (!(sf = sf_open(fname, SFM_READ, &sfinfo))) { + pa_log(__FILE__": Failed to open file %s", fname); + goto finish; + } + + switch (sfinfo.format & SF_FORMAT_SUBMASK) { + case SF_FORMAT_PCM_16: + case SF_FORMAT_PCM_U8: + case SF_FORMAT_PCM_S8: + ss->format = PA_SAMPLE_S16NE; + readf_function = (sf_count_t (*)(SNDFILE *sndfile, void *ptr, sf_count_t frames)) sf_readf_short; + break; + + case SF_FORMAT_ULAW: + ss->format = PA_SAMPLE_ULAW; + break; + + case SF_FORMAT_ALAW: + ss->format = PA_SAMPLE_ALAW; + break; + + case SF_FORMAT_FLOAT: + case SF_FORMAT_DOUBLE: + default: + ss->format = PA_SAMPLE_FLOAT32NE; + readf_function = (sf_count_t (*)(SNDFILE *sndfile, void *ptr, sf_count_t frames)) sf_readf_float; + break; + } + + ss->rate = sfinfo.samplerate; + ss->channels = sfinfo.channels; + + if (!pa_sample_spec_valid(ss)) { + pa_log(__FILE__": Unsupported sample format in file %s", fname); + goto finish; + } + + if (map) + pa_channel_map_init_auto(map, ss->channels, PA_CHANNEL_MAP_DEFAULT); + + if ((l = pa_frame_size(ss)*sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) { + pa_log(__FILE__": File too large"); + goto finish; + } + + chunk->memblock = pa_memblock_new(l, s); + assert(chunk->memblock); + chunk->index = 0; + chunk->length = l; + + if ((readf_function && readf_function(sf, chunk->memblock->data, sfinfo.frames) != sfinfo.frames) || + (!readf_function && sf_read_raw(sf, chunk->memblock->data, l) != l)) { + pa_log(__FILE__": Premature file end"); + goto finish; + } + + ret = 0; + +finish: + + if (sf) + sf_close(sf); + + if (ret != 0 && chunk->memblock) + pa_memblock_unref(chunk->memblock); + + return ret; + +} + +int pa_sound_file_too_big_to_cache(const char *fname) { + SNDFILE*sf = NULL; + SF_INFO sfinfo; + pa_sample_spec ss; + + if (!(sf = sf_open(fname, SFM_READ, &sfinfo))) { + pa_log(__FILE__": Failed to open file %s", fname); + return 0; + } + + sf_close(sf); + + switch (sfinfo.format & SF_FORMAT_SUBMASK) { + case SF_FORMAT_PCM_16: + case SF_FORMAT_PCM_U8: + case SF_FORMAT_PCM_S8: + ss.format = PA_SAMPLE_S16NE; + break; + + case SF_FORMAT_ULAW: + ss.format = PA_SAMPLE_ULAW; + break; + + case SF_FORMAT_ALAW: + ss.format = PA_SAMPLE_ALAW; + break; + + case SF_FORMAT_DOUBLE: + case SF_FORMAT_FLOAT: + default: + ss.format = PA_SAMPLE_FLOAT32NE; + break; + } + + ss.rate = sfinfo.samplerate; + ss.channels = sfinfo.channels; + + if ((pa_frame_size(&ss) * sfinfo.frames) > PA_SCACHE_ENTRY_SIZE_MAX) { + pa_log(__FILE__": File too large %s", fname); + return 1; + } + + return 0; +} diff --git a/src/pulsecore/sound-file.h b/src/pulsecore/sound-file.h new file mode 100644 index 00000000..0b81d97e --- /dev/null +++ b/src/pulsecore/sound-file.h @@ -0,0 +1,33 @@ +#ifndef soundfilehfoo +#define soundfilehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulse/sample.h> +#include <pulse/channelmap.h> +#include <pulsecore/memchunk.h> + +int pa_sound_file_load(const char *fname, pa_sample_spec *ss, pa_channel_map *map, pa_memchunk *chunk, pa_memblock_stat *s); + +int pa_sound_file_too_big_to_cache(const char *fname); + +#endif diff --git a/src/pulsecore/source-output.c b/src/pulsecore/source-output.c new file mode 100644 index 00000000..230b416d --- /dev/null +++ b/src/pulsecore/source-output.c @@ -0,0 +1,241 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> + +#include "source-output.h" + +#define CHECK_VALIDITY_RETURN_NULL(condition) \ +do {\ +if (!(condition)) \ + return NULL; \ +} while (0) + +pa_source_output* pa_source_output_new( + pa_source *s, + const char *driver, + const char *name, + const pa_sample_spec *spec, + const pa_channel_map *map, + int resample_method) { + + pa_source_output *o; + pa_resampler *resampler = NULL; + int r; + char st[256]; + pa_channel_map tmap; + + assert(s); + assert(spec); + assert(s->state == PA_SOURCE_RUNNING); + + CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec)); + + if (!map) + map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT); + + CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map)); + CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels); + CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver)); + CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name)); + + if (pa_idxset_size(s->outputs) >= PA_MAX_OUTPUTS_PER_SOURCE) { + pa_log(__FILE__": Failed to create source output: too many outputs per source."); + return NULL; + } + + if (resample_method == PA_RESAMPLER_INVALID) + resample_method = s->core->resample_method; + + if (!pa_sample_spec_equal(&s->sample_spec, spec) || !pa_channel_map_equal(&s->channel_map, map)) + if (!(resampler = pa_resampler_new(&s->sample_spec, &s->channel_map, spec, map, s->core->memblock_stat, resample_method))) + return NULL; + + o = pa_xnew(pa_source_output, 1); + o->ref = 1; + o->state = PA_SOURCE_OUTPUT_RUNNING; + o->name = pa_xstrdup(name); + o->driver = pa_xstrdup(driver); + o->owner = NULL; + o->source = s; + o->client = NULL; + + o->sample_spec = *spec; + o->channel_map = *map; + + o->push = NULL; + o->kill = NULL; + o->get_latency = NULL; + o->userdata = NULL; + + o->resampler = resampler; + + assert(s->core); + r = pa_idxset_put(s->core->source_outputs, o, &o->index); + assert(r == 0 && o->index != PA_IDXSET_INVALID); + r = pa_idxset_put(s->outputs, o, NULL); + assert(r == 0); + + pa_sample_spec_snprint(st, sizeof(st), spec); + pa_log_info(__FILE__": created %u \"%s\" on %u with sample spec \"%s\"", o->index, o->name, s->index, st); + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_NEW, o->index); + + return o; +} + +void pa_source_output_disconnect(pa_source_output*o) { + assert(o); + assert(o->state != PA_SOURCE_OUTPUT_DISCONNECTED); + assert(o->source); + assert(o->source->core); + + pa_idxset_remove_by_data(o->source->core->source_outputs, o, NULL); + pa_idxset_remove_by_data(o->source->outputs, o, NULL); + + pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_REMOVE, o->index); + o->source = NULL; + + o->push = NULL; + o->kill = NULL; + o->get_latency = NULL; + + o->state = PA_SOURCE_OUTPUT_DISCONNECTED; +} + +static void source_output_free(pa_source_output* o) { + assert(o); + + if (o->state != PA_SOURCE_OUTPUT_DISCONNECTED) + pa_source_output_disconnect(o); + + pa_log_info(__FILE__": freed %u \"%s\"", o->index, o->name); + + if (o->resampler) + pa_resampler_free(o->resampler); + + pa_xfree(o->name); + pa_xfree(o->driver); + pa_xfree(o); +} + +void pa_source_output_unref(pa_source_output* o) { + assert(o); + assert(o->ref >= 1); + + if (!(--o->ref)) + source_output_free(o); +} + +pa_source_output* pa_source_output_ref(pa_source_output *o) { + assert(o); + assert(o->ref >= 1); + + o->ref++; + return o; +} + + +void pa_source_output_kill(pa_source_output*o) { + assert(o); + assert(o->ref >= 1); + + if (o->kill) + o->kill(o); +} + +void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk) { + pa_memchunk rchunk; + + assert(o); + assert(chunk); + assert(chunk->length); + assert(o->push); + + if (o->state == PA_SOURCE_OUTPUT_CORKED) + return; + + if (!o->resampler) { + o->push(o, chunk); + return; + } + + pa_resampler_run(o->resampler, chunk, &rchunk); + if (!rchunk.length) + return; + + assert(rchunk.memblock); + o->push(o, &rchunk); + pa_memblock_unref(rchunk.memblock); +} + +void pa_source_output_set_name(pa_source_output *o, const char *name) { + assert(o); + assert(o->ref >= 1); + + pa_xfree(o->name); + o->name = pa_xstrdup(name); + + pa_subscription_post(o->source->core, PA_SUBSCRIPTION_EVENT_SOURCE_OUTPUT|PA_SUBSCRIPTION_EVENT_CHANGE, o->index); +} + +pa_usec_t pa_source_output_get_latency(pa_source_output *o) { + assert(o); + assert(o->ref >= 1); + + if (o->get_latency) + return o->get_latency(o); + + return 0; +} + +void pa_source_output_cork(pa_source_output *o, int b) { + assert(o); + assert(o->ref >= 1); + + if (o->state == PA_SOURCE_OUTPUT_DISCONNECTED) + return; + + o->state = b ? PA_SOURCE_OUTPUT_CORKED : PA_SOURCE_OUTPUT_RUNNING; +} + +pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o) { + assert(o); + assert(o->ref >= 1); + + if (!o->resampler) + return PA_RESAMPLER_INVALID; + + return pa_resampler_get_method(o->resampler); +} diff --git a/src/pulsecore/source-output.h b/src/pulsecore/source-output.h new file mode 100644 index 00000000..ef398dd1 --- /dev/null +++ b/src/pulsecore/source-output.h @@ -0,0 +1,92 @@ +#ifndef foosourceoutputhfoo +#define foosourceoutputhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> + +typedef struct pa_source_output pa_source_output; + +#include <pulse/sample.h> +#include <pulsecore/source.h> +#include <pulsecore/memblockq.h> +#include <pulsecore/resampler.h> +#include <pulsecore/module.h> +#include <pulsecore/client.h> + +typedef enum { + PA_SOURCE_OUTPUT_RUNNING, + PA_SOURCE_OUTPUT_CORKED, + PA_SOURCE_OUTPUT_DISCONNECTED +} pa_source_output_state_t; + +struct pa_source_output { + int ref; + uint32_t index; + pa_source_output_state_t state; + + char *name, *driver; + pa_module *owner; + + pa_source *source; + pa_client *client; + + pa_sample_spec sample_spec; + pa_channel_map channel_map; + + void (*push)(pa_source_output *o, const pa_memchunk *chunk); + void (*kill)(pa_source_output* o); + pa_usec_t (*get_latency) (pa_source_output *o); + + pa_resampler* resampler; + + void *userdata; +}; + +pa_source_output* pa_source_output_new( + pa_source *s, + const char *driver, + const char *name, + const pa_sample_spec *spec, + const pa_channel_map *map, + int resample_method); + +void pa_source_output_unref(pa_source_output* o); +pa_source_output* pa_source_output_ref(pa_source_output *o); + +/* To be called by the implementing module only */ +void pa_source_output_disconnect(pa_source_output*o); + +/* External code may request disconnection with this funcion */ +void pa_source_output_kill(pa_source_output*o); + +void pa_source_output_push(pa_source_output *o, const pa_memchunk *chunk); + +void pa_source_output_set_name(pa_source_output *i, const char *name); + +pa_usec_t pa_source_output_get_latency(pa_source_output *i); + +void pa_source_output_cork(pa_source_output *i, int b); + +pa_resample_method_t pa_source_output_get_resample_method(pa_source_output *o); + +#endif diff --git a/src/pulsecore/source.c b/src/pulsecore/source.c new file mode 100644 index 00000000..84151a92 --- /dev/null +++ b/src/pulsecore/source.c @@ -0,0 +1,313 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdio.h> +#include <assert.h> +#include <stdlib.h> +#include <string.h> + +#include <pulse/utf8.h> +#include <pulse/xmalloc.h> + +#include <pulsecore/source-output.h> +#include <pulsecore/namereg.h> +#include <pulsecore/core-subscribe.h> +#include <pulsecore/log.h> +#include <pulsecore/sample-util.h> + +#include "source.h" + +#define CHECK_VALIDITY_RETURN_NULL(condition) \ +do {\ +if (!(condition)) \ + return NULL; \ +} while (0) + +pa_source* pa_source_new( + pa_core *core, + const char *driver, + const char *name, + int fail, + const pa_sample_spec *spec, + const pa_channel_map *map) { + + pa_source *s; + char st[256]; + int r; + pa_channel_map tmap; + + assert(core); + assert(name); + assert(spec); + + CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec)); + + if (!map) + map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT); + + CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map)); + CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels); + CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver)); + CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name) && *name); + + s = pa_xnew(pa_source, 1); + + if (!(name = pa_namereg_register(core, name, PA_NAMEREG_SOURCE, s, fail))) { + pa_xfree(s); + return NULL; + } + + s->ref = 1; + s->core = core; + s->state = PA_SOURCE_RUNNING; + s->name = pa_xstrdup(name); + s->description = NULL; + s->driver = pa_xstrdup(driver); + s->owner = NULL; + + s->sample_spec = *spec; + s->channel_map = *map; + + s->outputs = pa_idxset_new(NULL, NULL); + s->monitor_of = NULL; + + pa_cvolume_reset(&s->sw_volume, spec->channels); + pa_cvolume_reset(&s->hw_volume, spec->channels); + s->sw_muted = 0; + s->hw_muted = 0; + + s->get_latency = NULL; + s->notify = NULL; + s->set_hw_volume = NULL; + s->get_hw_volume = NULL; + s->set_hw_mute = NULL; + s->get_hw_mute = NULL; + s->userdata = NULL; + + r = pa_idxset_put(core->sources, s, &s->index); + assert(s->index != PA_IDXSET_INVALID && r >= 0); + + pa_sample_spec_snprint(st, sizeof(st), spec); + pa_log_info(__FILE__": created %u \"%s\" with sample spec \"%s\"", s->index, s->name, st); + + pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index); + + return s; +} + +void pa_source_disconnect(pa_source *s) { + pa_source_output *o, *j = NULL; + + assert(s); + assert(s->state == PA_SOURCE_RUNNING); + + pa_namereg_unregister(s->core, s->name); + + while ((o = pa_idxset_first(s->outputs, NULL))) { + assert(o != j); + pa_source_output_kill(o); + j = o; + } + + pa_idxset_remove_by_data(s->core->sources, s, NULL); + + s->get_latency = NULL; + s->notify = NULL; + s->get_hw_volume = NULL; + s->set_hw_volume = NULL; + s->set_hw_mute = NULL; + s->get_hw_mute = NULL; + + s->state = PA_SOURCE_DISCONNECTED; + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index); +} + +static void source_free(pa_source *s) { + assert(s); + assert(!s->ref); + + if (s->state != PA_SOURCE_DISCONNECTED) + pa_source_disconnect(s); + + pa_log_info(__FILE__": freed %u \"%s\"", s->index, s->name); + + pa_idxset_free(s->outputs, NULL, NULL); + + pa_xfree(s->name); + pa_xfree(s->description); + pa_xfree(s->driver); + pa_xfree(s); +} + +void pa_source_unref(pa_source *s) { + assert(s); + assert(s->ref >= 1); + + if (!(--s->ref)) + source_free(s); +} + +pa_source* pa_source_ref(pa_source *s) { + assert(s); + assert(s->ref >= 1); + + s->ref++; + return s; +} + +void pa_source_notify(pa_source*s) { + assert(s); + assert(s->ref >= 1); + + if (s->notify) + s->notify(s); +} + +static int do_post(void *p, PA_GCC_UNUSED uint32_t idx, PA_GCC_UNUSED int *del, void*userdata) { + pa_source_output *o = p; + const pa_memchunk *chunk = userdata; + + assert(o); + assert(chunk); + + pa_source_output_push(o, chunk); + return 0; +} + +void pa_source_post(pa_source*s, const pa_memchunk *chunk) { + assert(s); + assert(s->ref >= 1); + assert(chunk); + + pa_source_ref(s); + + if (s->sw_muted || !pa_cvolume_is_norm(&s->sw_volume)) { + pa_memchunk vchunk = *chunk; + + pa_memblock_ref(vchunk.memblock); + pa_memchunk_make_writable(&vchunk, s->core->memblock_stat, 0); + if (s->sw_muted) + pa_silence_memchunk(&vchunk, &s->sample_spec); + else + pa_volume_memchunk(&vchunk, &s->sample_spec, &s->sw_volume); + pa_idxset_foreach(s->outputs, do_post, &vchunk); + pa_memblock_unref(vchunk.memblock); + } else + pa_idxset_foreach(s->outputs, do_post, (void*) chunk); + + pa_source_unref(s); +} + +void pa_source_set_owner(pa_source *s, pa_module *m) { + assert(s); + assert(s->ref >= 1); + + s->owner = m; +} + +pa_usec_t pa_source_get_latency(pa_source *s) { + assert(s); + assert(s->ref >= 1); + + if (!s->get_latency) + return 0; + + return s->get_latency(s); +} + +void pa_source_set_volume(pa_source *s, pa_mixer_t m, const pa_cvolume *volume) { + pa_cvolume *v; + + assert(s); + assert(s->ref >= 1); + assert(volume); + + if (m == PA_MIXER_HARDWARE && s->set_hw_volume) + v = &s->hw_volume; + else + v = &s->sw_volume; + + if (pa_cvolume_equal(v, volume)) + return; + + *v = *volume; + + if (v == &s->hw_volume) + if (s->set_hw_volume(s) < 0) + s->sw_volume = *volume; + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); +} + +const pa_cvolume *pa_source_get_volume(pa_source *s, pa_mixer_t m) { + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_volume) { + + if (s->get_hw_volume) + s->get_hw_volume(s); + + return &s->hw_volume; + } else + return &s->sw_volume; +} + +void pa_source_set_mute(pa_source *s, pa_mixer_t m, int mute) { + int *t; + + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_mute) + t = &s->hw_muted; + else + t = &s->sw_muted; + + if (!!*t == !!mute) + return; + + *t = !!mute; + + if (t == &s->hw_muted) + if (s->set_hw_mute(s) < 0) + s->sw_muted = !!mute; + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); +} + +int pa_source_get_mute(pa_source *s, pa_mixer_t m) { + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_mute) { + + if (s->get_hw_mute) + s->get_hw_mute(s); + + return s->hw_muted; + } else + return s->sw_muted; +} diff --git a/src/pulsecore/source.h b/src/pulsecore/source.h new file mode 100644 index 00000000..6255c115 --- /dev/null +++ b/src/pulsecore/source.h @@ -0,0 +1,101 @@ +#ifndef foosourcehfoo +#define foosourcehfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef struct pa_source pa_source; + +#include <inttypes.h> + +#include <pulse/sample.h> +#include <pulse/channelmap.h> +#include <pulse/volume.h> +#include <pulsecore/core-def.h> +#include <pulsecore/core.h> +#include <pulsecore/idxset.h> +#include <pulsecore/memblock.h> +#include <pulsecore/memchunk.h> +#include <pulsecore/sink.h> +#include <pulsecore/module.h> + +#define PA_MAX_OUTPUTS_PER_SOURCE 16 + +typedef enum pa_source_state { + PA_SOURCE_RUNNING, + PA_SOURCE_DISCONNECTED +} pa_source_state_t; + +struct pa_source { + int ref; + uint32_t index; + pa_core *core; + pa_source_state_t state; + + char *name, *description, *driver; + pa_module *owner; + + pa_sample_spec sample_spec; + pa_channel_map channel_map; + + pa_idxset *outputs; + pa_sink *monitor_of; + + pa_cvolume hw_volume, sw_volume; + int hw_muted, sw_muted; + + void (*notify)(pa_source*source); + pa_usec_t (*get_latency)(pa_source *s); + int (*set_hw_volume)(pa_source *s); + int (*get_hw_volume)(pa_source *s); + int (*set_hw_mute)(pa_source *s); + int (*get_hw_mute)(pa_source *s); + + void *userdata; +}; + +pa_source* pa_source_new( + pa_core *core, + const char *driver, + const char *name, + int namereg_fail, + const pa_sample_spec *spec, + const pa_channel_map *map); + +void pa_source_disconnect(pa_source *s); +void pa_source_unref(pa_source *s); +pa_source* pa_source_ref(pa_source *c); + +/* Pass a new memory block to all output streams */ +void pa_source_post(pa_source*s, const pa_memchunk *b); + +void pa_source_notify(pa_source *s); + +void pa_source_set_owner(pa_source *s, pa_module *m); + +pa_usec_t pa_source_get_latency(pa_source *s); + +void pa_source_set_volume(pa_source *source, pa_mixer_t m, const pa_cvolume *volume); +const pa_cvolume *pa_source_get_volume(pa_source *source, pa_mixer_t m); +void pa_source_set_mute(pa_source *source, pa_mixer_t m, int mute); +int pa_source_get_mute(pa_source *source, pa_mixer_t m); + +#endif diff --git a/src/pulsecore/strbuf.c b/src/pulsecore/strbuf.c new file mode 100644 index 00000000..ef8160dc --- /dev/null +++ b/src/pulsecore/strbuf.c @@ -0,0 +1,167 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <sys/types.h> +#include <stdlib.h> +#include <assert.h> +#include <string.h> +#include <stdarg.h> +#include <stdio.h> + +#include <pulse/xmalloc.h> + +#include "strbuf.h" + +/* A chunk of the linked list that makes up the string */ +struct chunk { + struct chunk *next; + size_t length; +}; + +#define CHUNK_TO_TEXT(c) ((char*) (c) + sizeof(struct chunk)) + +struct pa_strbuf { + size_t length; + struct chunk *head, *tail; +}; + +pa_strbuf *pa_strbuf_new(void) { + pa_strbuf *sb = pa_xmalloc(sizeof(pa_strbuf)); + sb->length = 0; + sb->head = sb->tail = NULL; + return sb; +} + +void pa_strbuf_free(pa_strbuf *sb) { + assert(sb); + while (sb->head) { + struct chunk *c = sb->head; + sb->head = sb->head->next; + pa_xfree(c); + } + + pa_xfree(sb); +} + +/* Make a C string from the string buffer. The caller has to free + * string with pa_xfree(). */ +char *pa_strbuf_tostring(pa_strbuf *sb) { + char *t, *e; + struct chunk *c; + assert(sb); + + e = t = pa_xmalloc(sb->length+1); + + for (c = sb->head; c; c = c->next) { + assert((size_t) (e-t) <= sb->length); + memcpy(e, CHUNK_TO_TEXT(c), c->length); + e += c->length; + } + + /* Trailing NUL */ + *e = 0; + + assert(e == t+sb->length); + + return t; +} + +/* Combination of pa_strbuf_free() and pa_strbuf_tostring() */ +char *pa_strbuf_tostring_free(pa_strbuf *sb) { + char *t; + assert(sb); + t = pa_strbuf_tostring(sb); + pa_strbuf_free(sb); + return t; +} + +/* Append a string to the string buffer */ +void pa_strbuf_puts(pa_strbuf *sb, const char *t) { + assert(sb && t); + pa_strbuf_putsn(sb, t, strlen(t)); +} + +/* Append a new chunk to the linked list */ +static void append(pa_strbuf *sb, struct chunk *c) { + assert(sb && c); + + if (sb->tail) { + assert(sb->head); + sb->tail->next = c; + } else { + assert(!sb->head); + sb->head = c; + } + + sb->tail = c; + sb->length += c->length; + c->next = NULL; +} + +/* Append up to l bytes of a string to the string buffer */ +void pa_strbuf_putsn(pa_strbuf *sb, const char *t, size_t l) { + struct chunk *c; + assert(sb && t); + + if (!l) + return; + + c = pa_xmalloc(sizeof(struct chunk)+l); + c->length = l; + memcpy(CHUNK_TO_TEXT(c), t, l); + + append(sb, c); +} + +/* Append a printf() style formatted string to the string buffer. */ +/* The following is based on an example from the GNU libc documentation */ +int pa_strbuf_printf(pa_strbuf *sb, const char *format, ...) { + int size = 100; + struct chunk *c = NULL; + + assert(sb); + + for(;;) { + va_list ap; + int r; + + c = pa_xrealloc(c, sizeof(struct chunk)+size); + + va_start(ap, format); + r = vsnprintf(CHUNK_TO_TEXT(c), size, format, ap); + va_end(ap); + + if (r > -1 && r < size) { + c->length = r; + append(sb, c); + return r; + } + + if (r > -1) /* glibc 2.1 */ + size = r+1; + else /* glibc 2.0 */ + size *= 2; + } +} diff --git a/src/pulsecore/strbuf.h b/src/pulsecore/strbuf.h new file mode 100644 index 00000000..c45fb15f --- /dev/null +++ b/src/pulsecore/strbuf.h @@ -0,0 +1,38 @@ +#ifndef foostrbufhfoo +#define foostrbufhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <pulsecore/gccmacro.h> + +typedef struct pa_strbuf pa_strbuf; + +pa_strbuf *pa_strbuf_new(void); +void pa_strbuf_free(pa_strbuf *sb); +char *pa_strbuf_tostring(pa_strbuf *sb); +char *pa_strbuf_tostring_free(pa_strbuf *sb); + +int pa_strbuf_printf(pa_strbuf *sb, const char *format, ...) PA_GCC_PRINTF_ATTR(2,3); +void pa_strbuf_puts(pa_strbuf *sb, const char *t); +void pa_strbuf_putsn(pa_strbuf *sb, const char *t, size_t m); + +#endif diff --git a/src/pulsecore/strlist.c b/src/pulsecore/strlist.c new file mode 100644 index 00000000..df3a0275 --- /dev/null +++ b/src/pulsecore/strlist.c @@ -0,0 +1,139 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <assert.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/strbuf.h> +#include <pulsecore/core-util.h> + +#include "strlist.h" + +struct pa_strlist { + pa_strlist *next; + char *str; +}; + +pa_strlist* pa_strlist_prepend(pa_strlist *l, const char *s) { + pa_strlist *n; + assert(s); + n = pa_xmalloc(sizeof(pa_strlist)); + n->str = pa_xstrdup(s); + n->next = l; + return n; +} + +char *pa_strlist_tostring(pa_strlist *l) { + int first = 1; + pa_strbuf *b; + + b = pa_strbuf_new(); + for (; l; l = l->next) { + if (!first) + pa_strbuf_puts(b, " "); + first = 0; + pa_strbuf_puts(b, l->str); + } + + return pa_strbuf_tostring_free(b); +} + +pa_strlist* pa_strlist_remove(pa_strlist *l, const char *s) { + pa_strlist *ret = l, *prev = NULL; + assert(l && s); + + while (l) { + if (!strcmp(l->str, s)) { + pa_strlist *n = l->next; + + if (!prev) { + assert(ret == l); + ret = n; + } else + prev->next = n; + + pa_xfree(l->str); + pa_xfree(l); + + l = n; + + } else { + prev = l; + l = l->next; + } + } + + return ret; +} + +void pa_strlist_free(pa_strlist *l) { + while (l) { + pa_strlist *c = l; + l = l->next; + + pa_xfree(c->str); + pa_xfree(c); + } +} + +pa_strlist* pa_strlist_pop(pa_strlist *l, char **s) { + pa_strlist *r; + assert(s); + + if (!l) { + *s = NULL; + return NULL; + } + + *s = l->str; + r = l->next; + pa_xfree(l); + return r; +} + +pa_strlist* pa_strlist_parse(const char *s) { + pa_strlist *head = NULL, *p = NULL; + const char *state = NULL; + char *r; + + while ((r = pa_split_spaces(s, &state))) { + pa_strlist *n; + + n = pa_xmalloc(sizeof(pa_strlist)); + n->str = r; + n->next = NULL; + + if (p) + p->next = n; + else + head = n; + + p = n; + } + + return head; +} diff --git a/src/pulsecore/strlist.h b/src/pulsecore/strlist.h new file mode 100644 index 00000000..87925d5e --- /dev/null +++ b/src/pulsecore/strlist.h @@ -0,0 +1,47 @@ +#ifndef foostrlisthfoo +#define foostrlisthfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef struct pa_strlist pa_strlist; + +/* Add the specified server string to the list, return the new linked list head */ +pa_strlist* pa_strlist_prepend(pa_strlist *l, const char *s); + +/* Remove the specified string from the list, return the new linked list head */ +pa_strlist* pa_strlist_remove(pa_strlist *l, const char *s); + +/* Make a whitespace separated string of all server stringes. Returned memory has to be freed with pa_xfree() */ +char *pa_strlist_tostring(pa_strlist *l); + +/* Free the entire list */ +void pa_strlist_free(pa_strlist *l); + +/* Return the next entry in the list in *string and remove it from + * the list. Returns the new list head. The memory *string points to + * has to be freed with pa_xfree() */ +pa_strlist* pa_strlist_pop(pa_strlist *l, char **s); + +/* Parse a whitespace separated server list */ +pa_strlist* pa_strlist_parse(const char *s); + +#endif diff --git a/src/pulsecore/tagstruct.c b/src/pulsecore/tagstruct.c new file mode 100644 index 00000000..60b05a3f --- /dev/null +++ b/src/pulsecore/tagstruct.c @@ -0,0 +1,630 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/time.h> +#include <assert.h> +#include <stdarg.h> + +#ifdef HAVE_NETINET_IN_H +#include <netinet/in.h> +#endif + +#include "winsock.h" + +#include <pulse/xmalloc.h> + +#include "tagstruct.h" + + +struct pa_tagstruct { + uint8_t *data; + size_t length, allocated; + size_t rindex; + + int dynamic; +}; + +pa_tagstruct *pa_tagstruct_new(const uint8_t* data, size_t length) { + pa_tagstruct*t; + + assert(!data || (data && length)); + + t = pa_xmalloc(sizeof(pa_tagstruct)); + t->data = (uint8_t*) data; + t->allocated = t->length = data ? length : 0; + t->rindex = 0; + t->dynamic = !data; + return t; +} + +void pa_tagstruct_free(pa_tagstruct*t) { + assert(t); + if (t->dynamic) + pa_xfree(t->data); + pa_xfree(t); +} + +uint8_t* pa_tagstruct_free_data(pa_tagstruct*t, size_t *l) { + uint8_t *p; + assert(t && t->dynamic && l); + p = t->data; + *l = t->length; + pa_xfree(t); + return p; +} + +static void extend(pa_tagstruct*t, size_t l) { + assert(t && t->dynamic); + + if (t->length+l <= t->allocated) + return; + + t->data = pa_xrealloc(t->data, t->allocated = t->length+l+100); +} + + +void pa_tagstruct_puts(pa_tagstruct*t, const char *s) { + size_t l; + assert(t); + if (s) { + l = strlen(s)+2; + extend(t, l); + t->data[t->length] = PA_TAG_STRING; + strcpy((char*) (t->data+t->length+1), s); + t->length += l; + } else { + extend(t, 1); + t->data[t->length] = PA_TAG_STRING_NULL; + t->length += 1; + } +} + +void pa_tagstruct_putu32(pa_tagstruct*t, uint32_t i) { + assert(t); + extend(t, 5); + t->data[t->length] = PA_TAG_U32; + i = htonl(i); + memcpy(t->data+t->length+1, &i, 4); + t->length += 5; +} + +void pa_tagstruct_putu8(pa_tagstruct*t, uint8_t c) { + assert(t); + extend(t, 2); + t->data[t->length] = PA_TAG_U8; + *(t->data+t->length+1) = c; + t->length += 2; +} + +void pa_tagstruct_put_sample_spec(pa_tagstruct *t, const pa_sample_spec *ss) { + uint32_t rate; + assert(t && ss); + extend(t, 7); + t->data[t->length] = PA_TAG_SAMPLE_SPEC; + t->data[t->length+1] = (uint8_t) ss->format; + t->data[t->length+2] = ss->channels; + rate = htonl(ss->rate); + memcpy(t->data+t->length+3, &rate, 4); + t->length += 7; +} + +void pa_tagstruct_put_arbitrary(pa_tagstruct *t, const void *p, size_t length) { + uint32_t tmp; + assert(t && p); + + extend(t, 5+length); + t->data[t->length] = PA_TAG_ARBITRARY; + tmp = htonl(length); + memcpy(t->data+t->length+1, &tmp, 4); + if (length) + memcpy(t->data+t->length+5, p, length); + t->length += 5+length; +} + +void pa_tagstruct_put_boolean(pa_tagstruct*t, int b) { + assert(t); + extend(t, 1); + t->data[t->length] = b ? PA_TAG_BOOLEAN_TRUE : PA_TAG_BOOLEAN_FALSE; + t->length += 1; +} + +void pa_tagstruct_put_timeval(pa_tagstruct*t, const struct timeval *tv) { + uint32_t tmp; + assert(t); + extend(t, 9); + t->data[t->length] = PA_TAG_TIMEVAL; + tmp = htonl(tv->tv_sec); + memcpy(t->data+t->length+1, &tmp, 4); + tmp = htonl(tv->tv_usec); + memcpy(t->data+t->length+5, &tmp, 4); + t->length += 9; +} + +void pa_tagstruct_put_usec(pa_tagstruct*t, pa_usec_t u) { + uint32_t tmp; + assert(t); + extend(t, 9); + t->data[t->length] = PA_TAG_USEC; + tmp = htonl((uint32_t) (u >> 32)); + memcpy(t->data+t->length+1, &tmp, 4); + tmp = htonl((uint32_t) u); + memcpy(t->data+t->length+5, &tmp, 4); + t->length += 9; +} + +void pa_tagstruct_putu64(pa_tagstruct*t, uint64_t u) { + uint32_t tmp; + assert(t); + extend(t, 9); + t->data[t->length] = PA_TAG_U64; + tmp = htonl((uint32_t) (u >> 32)); + memcpy(t->data+t->length+1, &tmp, 4); + tmp = htonl((uint32_t) u); + memcpy(t->data+t->length+5, &tmp, 4); + t->length += 9; +} + +void pa_tagstruct_puts64(pa_tagstruct*t, int64_t u) { + uint32_t tmp; + assert(t); + extend(t, 9); + t->data[t->length] = PA_TAG_S64; + tmp = htonl((uint32_t) ((uint64_t) u >> 32)); + memcpy(t->data+t->length+1, &tmp, 4); + tmp = htonl((uint32_t) ((uint64_t) u)); + memcpy(t->data+t->length+5, &tmp, 4); + t->length += 9; +} + +void pa_tagstruct_put_channel_map(pa_tagstruct *t, const pa_channel_map *map) { + unsigned i; + + assert(t); + extend(t, 2 + map->channels); + + t->data[t->length++] = PA_TAG_CHANNEL_MAP; + t->data[t->length++] = map->channels; + + for (i = 0; i < map->channels; i ++) + t->data[t->length++] = (uint8_t) map->map[i]; +} + +void pa_tagstruct_put_cvolume(pa_tagstruct *t, const pa_cvolume *cvolume) { + unsigned i; + pa_volume_t vol; + + assert(t); + extend(t, 2 + cvolume->channels * sizeof(pa_volume_t)); + + t->data[t->length++] = PA_TAG_CVOLUME; + t->data[t->length++] = cvolume->channels; + + for (i = 0; i < cvolume->channels; i ++) { + vol = htonl(cvolume->values[i]); + memcpy(t->data + t->length, &vol, sizeof(pa_volume_t)); + t->length += sizeof(pa_volume_t); + } +} + +int pa_tagstruct_gets(pa_tagstruct*t, const char **s) { + int error = 0; + size_t n; + char *c; + assert(t && s); + + if (t->rindex+1 > t->length) + return -1; + + if (t->data[t->rindex] == PA_TAG_STRING_NULL) { + t->rindex++; + *s = NULL; + return 0; + } + + if (t->rindex+2 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_STRING) + return -1; + + error = 1; + for (n = 0, c = (char*) (t->data+t->rindex+1); t->rindex+1+n < t->length; n++, c++) + if (!*c) { + error = 0; + break; + } + + if (error) + return -1; + + *s = (char*) (t->data+t->rindex+1); + + t->rindex += n+2; + return 0; +} + +int pa_tagstruct_getu32(pa_tagstruct*t, uint32_t *i) { + assert(t && i); + + if (t->rindex+5 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_U32) + return -1; + + memcpy(i, t->data+t->rindex+1, 4); + *i = ntohl(*i); + t->rindex += 5; + return 0; +} + +int pa_tagstruct_getu8(pa_tagstruct*t, uint8_t *c) { + assert(t && c); + + if (t->rindex+2 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_U8) + return -1; + + *c = t->data[t->rindex+1]; + t->rindex +=2; + return 0; +} + +int pa_tagstruct_get_sample_spec(pa_tagstruct *t, pa_sample_spec *ss) { + assert(t && ss); + + if (t->rindex+7 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_SAMPLE_SPEC) + return -1; + + ss->format = t->data[t->rindex+1]; + ss->channels = t->data[t->rindex+2]; + memcpy(&ss->rate, t->data+t->rindex+3, 4); + ss->rate = ntohl(ss->rate); + + t->rindex += 7; + return 0; +} + +int pa_tagstruct_get_arbitrary(pa_tagstruct *t, const void **p, size_t length) { + uint32_t len; + assert(t && p); + + if (t->rindex+5+length > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_ARBITRARY) + return -1; + + memcpy(&len, t->data+t->rindex+1, 4); + if (ntohl(len) != length) + return -1; + + *p = t->data+t->rindex+5; + t->rindex += 5+length; + return 0; +} + +int pa_tagstruct_eof(pa_tagstruct*t) { + assert(t); + return t->rindex >= t->length; +} + +const uint8_t* pa_tagstruct_data(pa_tagstruct*t, size_t *l) { + assert(t && t->dynamic && l); + *l = t->length; + return t->data; +} + +int pa_tagstruct_get_boolean(pa_tagstruct*t, int *b) { + assert(t && b); + + if (t->rindex+1 > t->length) + return -1; + + if (t->data[t->rindex] == PA_TAG_BOOLEAN_TRUE) + *b = 1; + else if (t->data[t->rindex] == PA_TAG_BOOLEAN_FALSE) + *b = 0; + else + return -1; + + t->rindex +=1; + return 0; +} + +int pa_tagstruct_get_timeval(pa_tagstruct*t, struct timeval *tv) { + + if (t->rindex+9 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_TIMEVAL) + return -1; + + memcpy(&tv->tv_sec, t->data+t->rindex+1, 4); + tv->tv_sec = ntohl(tv->tv_sec); + memcpy(&tv->tv_usec, t->data+t->rindex+5, 4); + tv->tv_usec = ntohl(tv->tv_usec); + t->rindex += 9; + return 0; +} + +int pa_tagstruct_get_usec(pa_tagstruct*t, pa_usec_t *u) { + uint32_t tmp; + assert(t && u); + + if (t->rindex+9 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_USEC) + return -1; + + memcpy(&tmp, t->data+t->rindex+1, 4); + *u = (pa_usec_t) ntohl(tmp) << 32; + memcpy(&tmp, t->data+t->rindex+5, 4); + *u |= (pa_usec_t) ntohl(tmp); + t->rindex +=9; + return 0; +} + +int pa_tagstruct_getu64(pa_tagstruct*t, uint64_t *u) { + uint32_t tmp; + assert(t && u); + + if (t->rindex+9 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_U64) + return -1; + + memcpy(&tmp, t->data+t->rindex+1, 4); + *u = (uint64_t) ntohl(tmp) << 32; + memcpy(&tmp, t->data+t->rindex+5, 4); + *u |= (uint64_t) ntohl(tmp); + t->rindex +=9; + return 0; +} + +int pa_tagstruct_gets64(pa_tagstruct*t, int64_t *u) { + uint32_t tmp; + assert(t && u); + + if (t->rindex+9 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_S64) + return -1; + + memcpy(&tmp, t->data+t->rindex+1, 4); + *u = (int64_t) ((uint64_t) ntohl(tmp) << 32); + memcpy(&tmp, t->data+t->rindex+5, 4); + *u |= (int64_t) ntohl(tmp); + t->rindex +=9; + return 0; +} + +int pa_tagstruct_get_channel_map(pa_tagstruct *t, pa_channel_map *map) { + unsigned i; + + assert(t); + assert(map); + + if (t->rindex+2 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_CHANNEL_MAP) + return -1; + + if ((map->channels = t->data[t->rindex+1]) > PA_CHANNELS_MAX) + return -1; + + if (t->rindex+2+map->channels > t->length) + return -1; + + for (i = 0; i < map->channels; i ++) + map->map[i] = (int8_t) t->data[t->rindex + 2 + i]; + + t->rindex += 2 + map->channels; + return 0; +} + +int pa_tagstruct_get_cvolume(pa_tagstruct *t, pa_cvolume *cvolume) { + unsigned i; + pa_volume_t vol; + + assert(t); + assert(cvolume); + + if (t->rindex+2 > t->length) + return -1; + + if (t->data[t->rindex] != PA_TAG_CVOLUME) + return -1; + + if ((cvolume->channels = t->data[t->rindex+1]) > PA_CHANNELS_MAX) + return -1; + + if (t->rindex+2+cvolume->channels*sizeof(pa_volume_t) > t->length) + return -1; + + for (i = 0; i < cvolume->channels; i ++) { + memcpy(&vol, t->data + t->rindex + 2 + i * sizeof(pa_volume_t), sizeof(pa_volume_t)); + cvolume->values[i] = (pa_volume_t) ntohl(vol); + } + + t->rindex += 2 + cvolume->channels * sizeof(pa_volume_t); + return 0; +} + +void pa_tagstruct_put(pa_tagstruct *t, ...) { + va_list va; + assert(t); + + va_start(va, t); + + for (;;) { + int tag = va_arg(va, int); + + if (tag == PA_TAG_INVALID) + break; + + switch (tag) { + case PA_TAG_STRING: + case PA_TAG_STRING_NULL: + pa_tagstruct_puts(t, va_arg(va, char*)); + break; + + case PA_TAG_U32: + pa_tagstruct_putu32(t, va_arg(va, uint32_t)); + break; + + case PA_TAG_U8: + pa_tagstruct_putu8(t, (uint8_t) va_arg(va, int)); + break; + + case PA_TAG_U64: + pa_tagstruct_putu64(t, va_arg(va, uint64_t)); + break; + + case PA_TAG_SAMPLE_SPEC: + pa_tagstruct_put_sample_spec(t, va_arg(va, pa_sample_spec*)); + break; + + case PA_TAG_ARBITRARY: { + void *p = va_arg(va, void*); + size_t size = va_arg(va, size_t); + pa_tagstruct_put_arbitrary(t, p, size); + break; + } + + case PA_TAG_BOOLEAN_TRUE: + case PA_TAG_BOOLEAN_FALSE: + pa_tagstruct_put_boolean(t, va_arg(va, int)); + break; + + case PA_TAG_TIMEVAL: + pa_tagstruct_put_timeval(t, va_arg(va, struct timeval*)); + break; + + case PA_TAG_USEC: + pa_tagstruct_put_usec(t, va_arg(va, pa_usec_t)); + break; + + case PA_TAG_CHANNEL_MAP: + pa_tagstruct_put_channel_map(t, va_arg(va, pa_channel_map *)); + break; + + case PA_TAG_CVOLUME: + pa_tagstruct_put_cvolume(t, va_arg(va, pa_cvolume *)); + break; + + default: + abort(); + } + } + + va_end(va); +} + +int pa_tagstruct_get(pa_tagstruct *t, ...) { + va_list va; + int ret = 0; + + assert(t); + + va_start(va, t); + while (ret == 0) { + int tag = va_arg(va, int); + + if (tag == PA_TAG_INVALID) + break; + + switch (tag) { + case PA_TAG_STRING: + case PA_TAG_STRING_NULL: + ret = pa_tagstruct_gets(t, va_arg(va, const char**)); + break; + + case PA_TAG_U32: + ret = pa_tagstruct_getu32(t, va_arg(va, uint32_t*)); + break; + + case PA_TAG_U8: + ret = pa_tagstruct_getu8(t, va_arg(va, uint8_t*)); + break; + + case PA_TAG_U64: + ret = pa_tagstruct_getu64(t, va_arg(va, uint64_t*)); + break; + + case PA_TAG_SAMPLE_SPEC: + ret = pa_tagstruct_get_sample_spec(t, va_arg(va, pa_sample_spec*)); + break; + + case PA_TAG_ARBITRARY: { + const void **p = va_arg(va, const void**); + size_t size = va_arg(va, size_t); + ret = pa_tagstruct_get_arbitrary(t, p, size); + break; + } + + case PA_TAG_BOOLEAN_TRUE: + case PA_TAG_BOOLEAN_FALSE: + ret = pa_tagstruct_get_boolean(t, va_arg(va, int*)); + break; + + case PA_TAG_TIMEVAL: + ret = pa_tagstruct_get_timeval(t, va_arg(va, struct timeval*)); + break; + + case PA_TAG_USEC: + ret = pa_tagstruct_get_usec(t, va_arg(va, pa_usec_t*)); + break; + + case PA_TAG_CHANNEL_MAP: + ret = pa_tagstruct_get_channel_map(t, va_arg(va, pa_channel_map *)); + break; + + case PA_TAG_CVOLUME: + ret = pa_tagstruct_get_cvolume(t, va_arg(va, pa_cvolume *)); + break; + + + default: + abort(); + } + + } + + va_end(va); + return ret; +} diff --git a/src/pulsecore/tagstruct.h b/src/pulsecore/tagstruct.h new file mode 100644 index 00000000..4c56f328 --- /dev/null +++ b/src/pulsecore/tagstruct.h @@ -0,0 +1,93 @@ +#ifndef footagstructhfoo +#define footagstructhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <inttypes.h> +#include <sys/types.h> +#include <sys/time.h> +#include <time.h> + +#include <pulse/sample.h> +#include <pulse/channelmap.h> +#include <pulse/volume.h> + +typedef struct pa_tagstruct pa_tagstruct; + +enum { + PA_TAG_INVALID = 0, + PA_TAG_STRING = 't', + PA_TAG_STRING_NULL = 'N', + PA_TAG_U32 = 'L', + PA_TAG_U8 = 'B', + PA_TAG_U64 = 'R', + PA_TAG_S64 = 'r', + PA_TAG_SAMPLE_SPEC = 'a', + PA_TAG_ARBITRARY = 'x', + PA_TAG_BOOLEAN_TRUE = '1', + PA_TAG_BOOLEAN_FALSE = '0', + PA_TAG_BOOLEAN = PA_TAG_BOOLEAN_TRUE, + PA_TAG_TIMEVAL = 'T', + PA_TAG_USEC = 'U' /* 64bit unsigned */, + PA_TAG_CHANNEL_MAP = 'm', + PA_TAG_CVOLUME = 'v' +}; + +pa_tagstruct *pa_tagstruct_new(const uint8_t* data, size_t length); +void pa_tagstruct_free(pa_tagstruct*t); +uint8_t* pa_tagstruct_free_data(pa_tagstruct*t, size_t *l); + +int pa_tagstruct_eof(pa_tagstruct*t); +const uint8_t* pa_tagstruct_data(pa_tagstruct*t, size_t *l); + +void pa_tagstruct_put(pa_tagstruct *t, ...); + +void pa_tagstruct_puts(pa_tagstruct*t, const char *s); +void pa_tagstruct_putu8(pa_tagstruct*t, uint8_t c); +void pa_tagstruct_putu32(pa_tagstruct*t, uint32_t i); +void pa_tagstruct_putu64(pa_tagstruct*t, uint64_t i); +void pa_tagstruct_puts64(pa_tagstruct*t, int64_t i); +void pa_tagstruct_put_sample_spec(pa_tagstruct *t, const pa_sample_spec *ss); +void pa_tagstruct_put_arbitrary(pa_tagstruct*t, const void *p, size_t length); +void pa_tagstruct_put_boolean(pa_tagstruct*t, int b); +void pa_tagstruct_put_timeval(pa_tagstruct*t, const struct timeval *tv); +void pa_tagstruct_put_usec(pa_tagstruct*t, pa_usec_t u); +void pa_tagstruct_put_channel_map(pa_tagstruct *t, const pa_channel_map *map); +void pa_tagstruct_put_cvolume(pa_tagstruct *t, const pa_cvolume *cvolume); + +int pa_tagstruct_get(pa_tagstruct *t, ...); + +int pa_tagstruct_gets(pa_tagstruct*t, const char **s); +int pa_tagstruct_getu8(pa_tagstruct*t, uint8_t *c); +int pa_tagstruct_getu32(pa_tagstruct*t, uint32_t *i); +int pa_tagstruct_getu64(pa_tagstruct*t, uint64_t *i); +int pa_tagstruct_gets64(pa_tagstruct*t, int64_t *i); +int pa_tagstruct_get_sample_spec(pa_tagstruct *t, pa_sample_spec *ss); +int pa_tagstruct_get_arbitrary(pa_tagstruct *t, const void **p, size_t length); +int pa_tagstruct_get_boolean(pa_tagstruct *t, int *b); +int pa_tagstruct_get_timeval(pa_tagstruct*t, struct timeval *tv); +int pa_tagstruct_get_usec(pa_tagstruct*t, pa_usec_t *u); +int pa_tagstruct_get_channel_map(pa_tagstruct *t, pa_channel_map *map); +int pa_tagstruct_get_cvolume(pa_tagstruct *t, pa_cvolume *v); + + +#endif diff --git a/src/pulsecore/tokenizer.c b/src/pulsecore/tokenizer.c new file mode 100644 index 00000000..e799c1e6 --- /dev/null +++ b/src/pulsecore/tokenizer.c @@ -0,0 +1,90 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> +#include <assert.h> +#include <stdlib.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/dynarray.h> +#include <pulsecore/gccmacro.h> + +#include "tokenizer.h" + +struct pa_tokenizer { + pa_dynarray *dynarray; +}; + +static void token_free(void *p, PA_GCC_UNUSED void *userdata) { + pa_xfree(p); +} + +static void parse(pa_dynarray*a, const char *s, unsigned args) { + int infty = 0; + const char delimiter[] = " \t\n\r"; + const char *p; + assert(a && s); + + if (args == 0) + infty = 1; + + p = s+strspn(s, delimiter); + while (*p && (infty || args >= 2)) { + size_t l = strcspn(p, delimiter); + char *n = pa_xstrndup(p, l); + pa_dynarray_append(a, n); + p += l; + p += strspn(p, delimiter); + args--; + } + + if (args && *p) { + char *n = pa_xstrdup(p); + pa_dynarray_append(a, n); + } +} + +pa_tokenizer* pa_tokenizer_new(const char *s, unsigned args) { + pa_tokenizer *t; + + t = pa_xmalloc(sizeof(pa_tokenizer)); + t->dynarray = pa_dynarray_new(); + assert(t->dynarray); + + parse(t->dynarray, s, args); + return t; +} + +void pa_tokenizer_free(pa_tokenizer *t) { + assert(t); + pa_dynarray_free(t->dynarray, token_free, NULL); + pa_xfree(t); +} + +const char *pa_tokenizer_get(pa_tokenizer *t, unsigned i) { + assert(t); + return pa_dynarray_get(t->dynarray, i); +} diff --git a/src/pulsecore/tokenizer.h b/src/pulsecore/tokenizer.h new file mode 100644 index 00000000..b9a5c55b --- /dev/null +++ b/src/pulsecore/tokenizer.h @@ -0,0 +1,32 @@ +#ifndef footokenizerhfoo +#define footokenizerhfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +typedef struct pa_tokenizer pa_tokenizer; + +pa_tokenizer* pa_tokenizer_new(const char *s, unsigned args); +void pa_tokenizer_free(pa_tokenizer *t); + +const char *pa_tokenizer_get(pa_tokenizer *t, unsigned i); + +#endif diff --git a/src/pulsecore/winsock.h b/src/pulsecore/winsock.h new file mode 100644 index 00000000..ae868b38 --- /dev/null +++ b/src/pulsecore/winsock.h @@ -0,0 +1,24 @@ +#ifndef foowinsockhfoo +#define foowinsockhfoo + +#ifdef HAVE_WINSOCK2_H +#include <winsock2.h> + +#define ESHUTDOWN WSAESHUTDOWN +#define ECONNRESET WSAECONNRESET +#define ECONNABORTED WSAECONNABORTED +#define ENETRESET WSAENETRESET +#define EINPROGRESS WSAEINPROGRESS +#define EAFNOSUPPORT WSAEAFNOSUPPORT +#define ETIMEDOUT WSAETIMEDOUT +#define ECONNREFUSED WSAECONNREFUSED +#define EHOSTUNREACH WSAEHOSTUNREACH +#define EWOULDBLOCK WSAEWOULDBLOCK + +#endif + +#ifdef HAVE_WS2TCPIP_H +#include <ws2tcpip.h> +#endif + +#endif diff --git a/src/pulsecore/x11prop.c b/src/pulsecore/x11prop.c new file mode 100644 index 00000000..dd4ff99e --- /dev/null +++ b/src/pulsecore/x11prop.c @@ -0,0 +1,70 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include <string.h> + +#include <X11/Xlib.h> +#include <X11/Xatom.h> + +#include "x11prop.h" + + +void pa_x11_set_prop(Display *d, const char *name, const char *data) { + Atom a = XInternAtom(d, name, False); + XChangeProperty(d, RootWindow(d, 0), a, XA_STRING, 8, PropModeReplace, (const unsigned char*) data, strlen(data)+1); +} + +void pa_x11_del_prop(Display *d, const char *name) { + Atom a = XInternAtom(d, name, False); + XDeleteProperty(d, RootWindow(d, 0), a); +} + +char* pa_x11_get_prop(Display *d, const char *name, char *p, size_t l) { + Atom actual_type; + int actual_format; + unsigned long nitems; + unsigned long nbytes_after; + unsigned char *prop = NULL; + char *ret = NULL; + + Atom a = XInternAtom(d, name, False); + if (XGetWindowProperty(d, RootWindow(d, 0), a, 0, (l+2)/4, False, XA_STRING, &actual_type, &actual_format, &nitems, &nbytes_after, &prop) != Success) + goto finish; + + if (actual_type != XA_STRING) + goto finish; + + memcpy(p, prop, nitems); + p[nitems] = 0; + + ret = p; + +finish: + + if (prop) + XFree(prop); + + return ret; +} diff --git a/src/pulsecore/x11prop.h b/src/pulsecore/x11prop.h new file mode 100644 index 00000000..bd24951a --- /dev/null +++ b/src/pulsecore/x11prop.h @@ -0,0 +1,33 @@ +#ifndef foox11prophfoo +#define foox11prophfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <sys/types.h> + +#include <X11/Xlib.h> + +void pa_x11_set_prop(Display *d, const char *name, const char *data); +void pa_x11_del_prop(Display *d, const char *name); +char* pa_x11_get_prop(Display *d, const char *name, char *p, size_t l); + +#endif diff --git a/src/pulsecore/x11wrap.c b/src/pulsecore/x11wrap.c new file mode 100644 index 00000000..2ba0a87f --- /dev/null +++ b/src/pulsecore/x11wrap.c @@ -0,0 +1,247 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <assert.h> +#include <stdio.h> + +#include <pulse/xmalloc.h> + +#include <pulsecore/llist.h> +#include <pulsecore/log.h> +#include <pulsecore/props.h> + +#include "x11wrap.h" + +typedef struct pa_x11_internal pa_x11_internal; + +struct pa_x11_internal { + PA_LLIST_FIELDS(pa_x11_internal); + pa_x11_wrapper *wrapper; + pa_io_event* io_event; + int fd; +}; + +struct pa_x11_wrapper { + pa_core *core; + int ref; + + char *property_name; + Display *display; + + pa_defer_event* defer_event; + pa_io_event* io_event; + + PA_LLIST_HEAD(pa_x11_client, clients); + PA_LLIST_HEAD(pa_x11_internal, internals); +}; + +struct pa_x11_client { + PA_LLIST_FIELDS(pa_x11_client); + pa_x11_wrapper *wrapper; + int (*callback)(pa_x11_wrapper *w, XEvent *e, void *userdata); + void *userdata; +}; + +/* Dispatch all pending X11 events */ +static void work(pa_x11_wrapper *w) { + assert(w && w->ref >= 1); + + while (XPending(w->display)) { + pa_x11_client *c; + XEvent e; + XNextEvent(w->display, &e); + + for (c = w->clients; c; c = c->next) { + assert(c->callback); + if (c->callback(w, &e, c->userdata) != 0) + break; + } + } +} + +/* IO notification event for the X11 display connection */ +static void display_io_event(pa_mainloop_api *m, pa_io_event *e, int fd, PA_GCC_UNUSED pa_io_event_flags_t f, void *userdata) { + pa_x11_wrapper *w = userdata; + assert(m && e && fd >= 0 && w && w->ref >= 1); + work(w); +} + +/* Deferred notification event. Called once each main loop iteration */ +static void defer_event(pa_mainloop_api *m, pa_defer_event *e, void *userdata) { + pa_x11_wrapper *w = userdata; + assert(m && e && w && w->ref >= 1); + + m->defer_enable(e, 0); + + work(w); +} + +/* IO notification event for X11 internal connections */ +static void internal_io_event(pa_mainloop_api *m, pa_io_event *e, int fd, PA_GCC_UNUSED pa_io_event_flags_t f, void *userdata) { + pa_x11_wrapper *w = userdata; + assert(m && e && fd >= 0 && w && w->ref >= 1); + + XProcessInternalConnection(w->display, fd); + + work(w); +} + +/* Add a new IO source for the specified X11 internal connection */ +static pa_x11_internal* x11_internal_add(pa_x11_wrapper *w, int fd) { + pa_x11_internal *i; + assert(fd >= 0); + + i = pa_xmalloc(sizeof(pa_x11_internal)); + assert(i); + i->wrapper = w; + i->io_event = w->core->mainloop->io_new(w->core->mainloop, fd, PA_IO_EVENT_INPUT, internal_io_event, w); + i->fd = fd; + + PA_LLIST_PREPEND(pa_x11_internal, w->internals, i); + return i; +} + +/* Remove an IO source for an X11 internal connection */ +static void x11_internal_remove(pa_x11_wrapper *w, pa_x11_internal *i) { + assert(i); + + PA_LLIST_REMOVE(pa_x11_internal, w->internals, i); + w->core->mainloop->io_free(i->io_event); + pa_xfree(i); +} + +/* Implementation of XConnectionWatchProc */ +static void x11_watch(Display *display, XPointer userdata, int fd, Bool opening, XPointer *watch_data) { + pa_x11_wrapper *w = (pa_x11_wrapper*) userdata; + assert(display && w && fd >= 0); + + if (opening) + *watch_data = (XPointer) x11_internal_add(w, fd); + else + x11_internal_remove(w, (pa_x11_internal*) *watch_data); +} + +static pa_x11_wrapper* x11_wrapper_new(pa_core *c, const char *name, const char *t) { + pa_x11_wrapper*w; + Display *d; + int r; + + if (!(d = XOpenDisplay(name))) { + pa_log(__FILE__": XOpenDisplay() failed"); + return NULL; + } + + w = pa_xmalloc(sizeof(pa_x11_wrapper)); + w->core = c; + w->ref = 1; + w->property_name = pa_xstrdup(t); + w->display = d; + + PA_LLIST_HEAD_INIT(pa_x11_client, w->clients); + PA_LLIST_HEAD_INIT(pa_x11_internal, w->internals); + + w->defer_event = c->mainloop->defer_new(c->mainloop, defer_event, w); + w->io_event = c->mainloop->io_new(c->mainloop, ConnectionNumber(d), PA_IO_EVENT_INPUT, display_io_event, w); + + XAddConnectionWatch(d, x11_watch, (XPointer) w); + + r = pa_property_set(c, w->property_name, w); + assert(r >= 0); + + return w; +} + +static void x11_wrapper_free(pa_x11_wrapper*w) { + int r; + assert(w); + + r = pa_property_remove(w->core, w->property_name); + assert(r >= 0); + + assert(!w->clients); + + XRemoveConnectionWatch(w->display, x11_watch, (XPointer) w); + XCloseDisplay(w->display); + + w->core->mainloop->io_free(w->io_event); + w->core->mainloop->defer_free(w->defer_event); + + while (w->internals) + x11_internal_remove(w, w->internals); + + pa_xfree(w->property_name); + pa_xfree(w); +} + +pa_x11_wrapper* pa_x11_wrapper_get(pa_core *c, const char *name) { + char t[256]; + pa_x11_wrapper *w; + assert(c); + + snprintf(t, sizeof(t), "x11-wrapper%s%s", name ? "-" : "", name ? name : ""); + if ((w = pa_property_get(c, t))) + return pa_x11_wrapper_ref(w); + + return x11_wrapper_new(c, name, t); +} + +pa_x11_wrapper* pa_x11_wrapper_ref(pa_x11_wrapper *w) { + assert(w && w->ref >= 1); + w->ref++; + return w; +} + +void pa_x11_wrapper_unref(pa_x11_wrapper* w) { + assert(w && w->ref >= 1); + + if (!(--w->ref)) + x11_wrapper_free(w); +} + +Display *pa_x11_wrapper_get_display(pa_x11_wrapper *w) { + assert(w && w->ref >= 1); + + /* Somebody is using us, schedule a output buffer flush */ + w->core->mainloop->defer_enable(w->defer_event, 1); + + return w->display; +} + +pa_x11_client* pa_x11_client_new(pa_x11_wrapper *w, int (*cb)(pa_x11_wrapper *w, XEvent *e, void *userdata), void *userdata) { + pa_x11_client *c; + assert(w && w->ref >= 1); + + c = pa_xmalloc(sizeof(pa_x11_client)); + c->wrapper = w; + c->callback = cb; + c->userdata = userdata; + + PA_LLIST_PREPEND(pa_x11_client, w->clients, c); + + return c; +} + +void pa_x11_client_free(pa_x11_client *c) { + assert(c && c->wrapper && c->wrapper->ref >= 1); + + PA_LLIST_REMOVE(pa_x11_client, c->wrapper->clients, c); + pa_xfree(c); +} diff --git a/src/pulsecore/x11wrap.h b/src/pulsecore/x11wrap.h new file mode 100644 index 00000000..fcdd9f6c --- /dev/null +++ b/src/pulsecore/x11wrap.h @@ -0,0 +1,52 @@ +#ifndef foox11wraphfoo +#define foox11wraphfoo + +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#include <X11/Xlib.h> + +#include <pulsecore/core.h> + +typedef struct pa_x11_wrapper pa_x11_wrapper; + +/* Return the X11 wrapper for this core. In case no wrapper was + existant before, allocate a new one */ +pa_x11_wrapper* pa_x11_wrapper_get(pa_core *c, const char *name); + +/* Increase the wrapper's reference count by one */ +pa_x11_wrapper* pa_x11_wrapper_ref(pa_x11_wrapper *w); + +/* Decrease the reference counter of an X11 wrapper object */ +void pa_x11_wrapper_unref(pa_x11_wrapper* w); + +/* Return the X11 display object for this connection */ +Display *pa_x11_wrapper_get_display(pa_x11_wrapper *w); + +typedef struct pa_x11_client pa_x11_client; + +/* Register an X11 client, that is called for each X11 event */ +pa_x11_client* pa_x11_client_new(pa_x11_wrapper *w, int (*cb)(pa_x11_wrapper *w, XEvent *e, void *userdata), void *userdata); + +/* Free an X11 client object */ +void pa_x11_client_free(pa_x11_client *c); + +#endif |