From f44ba092651aa75055e109e04b4164ea92ae7fdc Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Mon, 19 Jun 2006 21:53:48 +0000 Subject: big s/polyp/pulse/g git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/pulse/context.c | 980 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 980 insertions(+) create mode 100644 src/pulse/context.c (limited to 'src/pulse/context.c') diff --git a/src/pulse/context.c b/src/pulse/context.c new file mode 100644 index 00000000..648024c3 --- /dev/null +++ b/src/pulse/context.c @@ -0,0 +1,980 @@ +/* $Id$ */ + +/*** + 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 +#endif + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef HAVE_SYS_WAIT_H +#include +#endif + +#ifdef HAVE_SYS_SOCKET_H +#include +#endif +#ifdef HAVE_NETDB_H +#include +#endif + +#include "../pulsecore/winsock.h" + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "internal.h" + +#include "client-conf.h" + +#ifdef HAVE_X11 +#include "client-conf-x11.h" +#endif + +#include "context.h" + +#define AUTOSPAWN_LOCK "autospawn.lock" + +static const pa_pdispatch_cb_t command_table[PA_COMMAND_MAX] = { + [PA_COMMAND_REQUEST] = pa_command_request, + [PA_COMMAND_OVERFLOW] = pa_command_overflow_or_underflow, + [PA_COMMAND_UNDERFLOW] = pa_command_overflow_or_underflow, + [PA_COMMAND_PLAYBACK_STREAM_KILLED] = pa_command_stream_killed, + [PA_COMMAND_RECORD_STREAM_KILLED] = pa_command_stream_killed, + [PA_COMMAND_SUBSCRIBE_EVENT] = pa_command_subscribe_event +}; + +static void unlock_autospawn_lock_file(pa_context *c) { + assert(c); + + if (c->autospawn_lock_fd >= 0) { + char lf[PATH_MAX]; + pa_runtime_path(AUTOSPAWN_LOCK, lf, sizeof(lf)); + + pa_unlock_lockfile(lf, c->autospawn_lock_fd); + c->autospawn_lock_fd = -1; + } +} + +pa_context *pa_context_new(pa_mainloop_api *mainloop, const char *name) { + pa_context *c; + + assert(mainloop); + assert(name); + + c = pa_xnew(pa_context, 1); + c->ref = 1; + c->name = pa_xstrdup(name); + c->mainloop = mainloop; + c->client = NULL; + c->pstream = NULL; + c->pdispatch = NULL; + c->playback_streams = pa_dynarray_new(); + c->record_streams = pa_dynarray_new(); + + PA_LLIST_HEAD_INIT(pa_stream, c->streams); + PA_LLIST_HEAD_INIT(pa_operation, c->operations); + + c->error = PA_OK; + c->state = PA_CONTEXT_UNCONNECTED; + c->ctag = 0; + c->csyncid = 0; + + c->state_callback = NULL; + c->state_userdata = NULL; + + c->subscribe_callback = NULL; + c->subscribe_userdata = NULL; + + c->memblock_stat = pa_memblock_stat_new(); + c->local = -1; + c->server_list = NULL; + c->server = NULL; + c->autospawn_lock_fd = -1; + memset(&c->spawn_api, 0, sizeof(c->spawn_api)); + c->do_autospawn = 0; + +#ifdef SIGPIPE + pa_check_signal_is_blocked(SIGPIPE); +#endif + + c->conf = pa_client_conf_new(); + pa_client_conf_load(c->conf, NULL); +#ifdef HAVE_X11 + pa_client_conf_from_x11(c->conf, NULL); +#endif + pa_client_conf_env(c->conf); + + return c; +} + +static void context_free(pa_context *c) { + assert(c); + + unlock_autospawn_lock_file(c); + + while (c->operations) + pa_operation_cancel(c->operations); + + while (c->streams) + pa_stream_set_state(c->streams, PA_STREAM_TERMINATED); + + if (c->client) + pa_socket_client_unref(c->client); + if (c->pdispatch) + pa_pdispatch_unref(c->pdispatch); + if (c->pstream) { + pa_pstream_close(c->pstream); + pa_pstream_unref(c->pstream); + } + + if (c->record_streams) + pa_dynarray_free(c->record_streams, NULL, NULL); + if (c->playback_streams) + pa_dynarray_free(c->playback_streams, NULL, NULL); + + pa_memblock_stat_unref(c->memblock_stat); + + if (c->conf) + pa_client_conf_free(c->conf); + + pa_strlist_free(c->server_list); + + pa_xfree(c->name); + pa_xfree(c->server); + pa_xfree(c); +} + +pa_context* pa_context_ref(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + c->ref++; + return c; +} + +void pa_context_unref(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + if (--c->ref <= 0) + context_free(c); +} + +void pa_context_set_state(pa_context *c, pa_context_state_t st) { + assert(c); + assert(c->ref >= 1); + + if (c->state == st) + return; + + pa_context_ref(c); + + c->state = st; + if (c->state_callback) + c->state_callback(c, c->state_userdata); + + if (st == PA_CONTEXT_FAILED || st == PA_CONTEXT_TERMINATED) { + pa_stream *s; + + s = c->streams ? pa_stream_ref(c->streams) : NULL; + while (s) { + pa_stream *n = s->next ? pa_stream_ref(s->next) : NULL; + pa_stream_set_state(s, st == PA_CONTEXT_FAILED ? PA_STREAM_FAILED : PA_STREAM_TERMINATED); + pa_stream_unref(s); + s = n; + } + + if (c->pdispatch) + pa_pdispatch_unref(c->pdispatch); + c->pdispatch = NULL; + + if (c->pstream) { + pa_pstream_close(c->pstream); + pa_pstream_unref(c->pstream); + } + c->pstream = NULL; + + if (c->client) + pa_socket_client_unref(c->client); + c->client = NULL; + } + + pa_context_unref(c); +} + +void pa_context_fail(pa_context *c, int error) { + assert(c); + assert(c->ref >= 1); + + pa_context_set_error(c, error); + pa_context_set_state(c, PA_CONTEXT_FAILED); +} + +int pa_context_set_error(pa_context *c, int error) { + assert(error >= 0); + assert(error < PA_ERR_MAX); + + if (c) + c->error = error; + + return error; +} + +static void pstream_die_callback(pa_pstream *p, void *userdata) { + pa_context *c = userdata; + + assert(p); + assert(c); + + pa_context_fail(c, PA_ERR_CONNECTIONTERMINATED); +} + +static void pstream_packet_callback(pa_pstream *p, pa_packet *packet, const void *creds, void *userdata) { + pa_context *c = userdata; + + assert(p); + assert(packet); + assert(c); + + pa_context_ref(c); + + if (pa_pdispatch_run(c->pdispatch, packet, creds, c) < 0) + pa_context_fail(c, PA_ERR_PROTOCOL); + + pa_context_unref(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) { + pa_context *c = userdata; + pa_stream *s; + + assert(p); + assert(chunk); + assert(chunk->memblock); + assert(chunk->length); + assert(c); + assert(c->ref >= 1); + + pa_context_ref(c); + + if ((s = pa_dynarray_get(c->record_streams, channel))) { + + assert(seek == PA_SEEK_RELATIVE && offset == 0); + + pa_memblockq_seek(s->record_memblockq, offset, seek); + pa_memblockq_push_align(s->record_memblockq, chunk); + + if (s->read_callback) { + size_t l; + + if ((l = pa_memblockq_get_length(s->record_memblockq)) > 0) + s->read_callback(s, l, s->read_userdata); + } + } + + pa_context_unref(c); +} + +int pa_context_handle_error(pa_context *c, uint32_t command, pa_tagstruct *t) { + assert(c); + assert(c->ref >= 1); + + if (command == PA_COMMAND_ERROR) { + assert(t); + + if (pa_tagstruct_getu32(t, &c->error) < 0) { + pa_context_fail(c, PA_ERR_PROTOCOL); + return -1; + + } + } else if (command == PA_COMMAND_TIMEOUT) + c->error = PA_ERR_TIMEOUT; + else { + pa_context_fail(c, PA_ERR_PROTOCOL); + return -1; + } + + return 0; +} + +static void setup_complete_callback(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_context *c = userdata; + + assert(pd); + assert(c); + assert(c->state == PA_CONTEXT_AUTHORIZING || c->state == PA_CONTEXT_SETTING_NAME); + + pa_context_ref(c); + + if (command != PA_COMMAND_REPLY) { + + if (pa_context_handle_error(c, command, t) < 0) + pa_context_fail(c, PA_ERR_PROTOCOL); + + pa_context_fail(c, c->error); + goto finish; + } + + switch(c->state) { + case PA_CONTEXT_AUTHORIZING: { + pa_tagstruct *reply; + + if (pa_tagstruct_getu32(t, &c->version) < 0 || + !pa_tagstruct_eof(t)) { + pa_context_fail(c, PA_ERR_PROTOCOL); + goto finish; + } + + /* Minimum supported version */ + if (c->version < 8) { + pa_context_fail(c, PA_ERR_VERSION); + goto finish; + } + + reply = pa_tagstruct_command(c, PA_COMMAND_SET_CLIENT_NAME, &tag); + pa_tagstruct_puts(reply, c->name); + pa_pstream_send_tagstruct(c->pstream, reply); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, setup_complete_callback, c, NULL); + + pa_context_set_state(c, PA_CONTEXT_SETTING_NAME); + break; + } + + case PA_CONTEXT_SETTING_NAME : + pa_context_set_state(c, PA_CONTEXT_READY); + break; + + default: + assert(0); + } + +finish: + pa_context_unref(c); +} + +static void setup_context(pa_context *c, pa_iochannel *io) { + pa_tagstruct *t; + uint32_t tag; + + assert(c); + assert(io); + + pa_context_ref(c); + + assert(!c->pstream); + c->pstream = pa_pstream_new(c->mainloop, io, c->memblock_stat); + + pa_pstream_set_die_callback(c->pstream, pstream_die_callback, c); + pa_pstream_set_recieve_packet_callback(c->pstream, pstream_packet_callback, c); + pa_pstream_set_recieve_memblock_callback(c->pstream, pstream_memblock_callback, c); + + assert(!c->pdispatch); + c->pdispatch = pa_pdispatch_new(c->mainloop, command_table, PA_COMMAND_MAX); + + if (!c->conf->cookie_valid) { + pa_context_fail(c, PA_ERR_AUTHKEY); + goto finish; + } + + t = pa_tagstruct_command(c, PA_COMMAND_AUTH, &tag); + pa_tagstruct_putu32(t, PA_PROTOCOL_VERSION); + pa_tagstruct_put_arbitrary(t, c->conf->cookie, sizeof(c->conf->cookie)); + pa_pstream_send_tagstruct_with_creds(c->pstream, t, 1); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, setup_complete_callback, c, NULL); + + pa_context_set_state(c, PA_CONTEXT_AUTHORIZING); + +finish: + + pa_context_unref(c); +} + +static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userdata); + +#ifndef OS_IS_WIN32 + +static int context_connect_spawn(pa_context *c) { + pid_t pid; + int status, r; + int fds[2] = { -1, -1} ; + pa_iochannel *io; + + pa_context_ref(c); + + if (socketpair(AF_UNIX, SOCK_STREAM, 0, fds) < 0) { + pa_log(__FILE__": socketpair(): %s", pa_cstrerror(errno)); + pa_context_fail(c, PA_ERR_INTERNAL); + goto fail; + } + + pa_fd_set_cloexec(fds[0], 1); + + pa_socket_low_delay(fds[0]); + pa_socket_low_delay(fds[1]); + + if (c->spawn_api.prefork) + c->spawn_api.prefork(); + + if ((pid = fork()) < 0) { + pa_log(__FILE__": fork(): %s", pa_cstrerror(errno)); + pa_context_fail(c, PA_ERR_INTERNAL); + + if (c->spawn_api.postfork) + c->spawn_api.postfork(); + + goto fail; + } else if (!pid) { + /* Child */ + + char t[128]; + const char *state = NULL; +#define MAX_ARGS 64 + const char * argv[MAX_ARGS+1]; + int n; + + /* Not required, since fds[0] has CLOEXEC enabled anyway */ + close(fds[0]); + + if (c->spawn_api.atfork) + c->spawn_api.atfork(); + + /* Setup argv */ + + n = 0; + + argv[n++] = c->conf->daemon_binary; + argv[n++] = "--daemonize=yes"; + + snprintf(t, sizeof(t), "-Lmodule-native-protocol-fd fd=%i", fds[1]); + argv[n++] = strdup(t); + + while (n < MAX_ARGS) { + char *a; + + if (!(a = pa_split_spaces(c->conf->extra_arguments, &state))) + break; + + argv[n++] = a; + } + + argv[n++] = NULL; + + execv(argv[0], (char * const *) argv); + _exit(1); +#undef MAX_ARGS + } + + /* Parent */ + + r = waitpid(pid, &status, 0); + + if (c->spawn_api.postfork) + c->spawn_api.postfork(); + + if (r < 0) { + pa_log(__FILE__": waitpid(): %s", pa_cstrerror(errno)); + pa_context_fail(c, PA_ERR_INTERNAL); + goto fail; + } else if (!WIFEXITED(status) || WEXITSTATUS(status) != 0) { + pa_context_fail(c, PA_ERR_CONNECTIONREFUSED); + goto fail; + } + + close(fds[1]); + + c->local = 1; + + io = pa_iochannel_new(c->mainloop, fds[0], fds[0]); + + setup_context(c, io); + unlock_autospawn_lock_file(c); + + pa_context_unref(c); + + return 0; + +fail: + if (fds[0] != -1) + close(fds[0]); + if (fds[1] != -1) + close(fds[1]); + + unlock_autospawn_lock_file(c); + + pa_context_unref(c); + + return -1; +} + +#endif /* OS_IS_WIN32 */ + +static int try_next_connection(pa_context *c) { + char *u = NULL; + int r = -1; + + assert(c); + assert(!c->client); + + for (;;) { + pa_xfree(u); + u = NULL; + + c->server_list = pa_strlist_pop(c->server_list, &u); + + if (!u) { + +#ifndef OS_IS_WIN32 + if (c->do_autospawn) { + r = context_connect_spawn(c); + goto finish; + } +#endif + + pa_context_fail(c, PA_ERR_CONNECTIONREFUSED); + goto finish; + } + + pa_log_debug(__FILE__": Trying to connect to %s...", u); + + pa_xfree(c->server); + c->server = pa_xstrdup(u); + + if (!(c->client = pa_socket_client_new_string(c->mainloop, u, PA_NATIVE_DEFAULT_PORT))) + continue; + + c->local = pa_socket_client_is_local(c->client); + pa_socket_client_set_callback(c->client, on_connection, c); + break; + } + + r = 0; + +finish: + pa_xfree(u); + + return r; +} + +static void on_connection(pa_socket_client *client, pa_iochannel*io, void *userdata) { + pa_context *c = userdata; + + assert(client); + assert(c); + assert(c->state == PA_CONTEXT_CONNECTING); + + pa_context_ref(c); + + pa_socket_client_unref(client); + c->client = NULL; + + if (!io) { + /* Try the item in the list */ + if (errno == ECONNREFUSED || errno == ETIMEDOUT || errno == EHOSTUNREACH) { + try_next_connection(c); + goto finish; + } + + pa_context_fail(c, PA_ERR_CONNECTIONREFUSED); + goto finish; + } + + unlock_autospawn_lock_file(c); + setup_context(c, io); + +finish: + pa_context_unref(c); +} + +int pa_context_connect( + pa_context *c, + const char *server, + pa_context_flags_t flags, + const pa_spawn_api *api) { + + int r = -1; + + assert(c); + assert(c->ref >= 1); + + PA_CHECK_VALIDITY(c, c->state == PA_CONTEXT_UNCONNECTED, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY(c, !(flags & ~PA_CONTEXT_NOAUTOSPAWN), PA_ERR_INVALID); + PA_CHECK_VALIDITY(c, !server || *server, PA_ERR_INVALID); + + if (!server) + server = c->conf->default_server; + + pa_context_ref(c); + + assert(!c->server_list); + + if (server) { + if (!(c->server_list = pa_strlist_parse(server))) { + pa_context_fail(c, PA_ERR_INVALIDSERVER); + goto finish; + } + } else { + char *d; + char ufn[PATH_MAX]; + + /* Prepend in reverse order */ + + if ((d = getenv("DISPLAY"))) { + char *e; + d = pa_xstrdup(d); + if ((e = strchr(d, ':'))) + *e = 0; + + if (*d) + c->server_list = pa_strlist_prepend(c->server_list, d); + + pa_xfree(d); + } + + c->server_list = pa_strlist_prepend(c->server_list, "tcp6:localhost"); + c->server_list = pa_strlist_prepend(c->server_list, "localhost"); + c->server_list = pa_strlist_prepend(c->server_list, pa_runtime_path(PA_NATIVE_DEFAULT_UNIX_SOCKET, ufn, sizeof(ufn))); + + /* Wrap the connection attempts in a single transaction for sane autospawn locking */ + if (!(flags & PA_CONTEXT_NOAUTOSPAWN) && c->conf->autospawn) { + char lf[PATH_MAX]; + + pa_runtime_path(AUTOSPAWN_LOCK, lf, sizeof(lf)); + pa_make_secure_parent_dir(lf); + assert(c->autospawn_lock_fd <= 0); + c->autospawn_lock_fd = pa_lock_lockfile(lf); + + if (api) + c->spawn_api = *api; + c->do_autospawn = 1; + } + + } + + pa_context_set_state(c, PA_CONTEXT_CONNECTING); + r = try_next_connection(c); + +finish: + pa_context_unref(c); + + return r; +} + +void pa_context_disconnect(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + pa_context_set_state(c, PA_CONTEXT_TERMINATED); +} + +pa_context_state_t pa_context_get_state(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + return c->state; +} + +int pa_context_errno(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + return c->error; +} + +void pa_context_set_state_callback(pa_context *c, pa_context_notify_cb_t cb, void *userdata) { + assert(c); + assert(c->ref >= 1); + + c->state_callback = cb; + c->state_userdata = userdata; +} + +int pa_context_is_pending(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + PA_CHECK_VALIDITY(c, + c->state == PA_CONTEXT_CONNECTING || + c->state == PA_CONTEXT_AUTHORIZING || + c->state == PA_CONTEXT_SETTING_NAME || + c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + + return (c->pstream && pa_pstream_is_pending(c->pstream)) || + (c->pdispatch && pa_pdispatch_is_pending(c->pdispatch)) || + c->client; +} + +static void set_dispatch_callbacks(pa_operation *o); + +static void pdispatch_drain_callback(PA_GCC_UNUSED pa_pdispatch*pd, void *userdata) { + set_dispatch_callbacks(userdata); +} + +static void pstream_drain_callback(PA_GCC_UNUSED pa_pstream *s, void *userdata) { + set_dispatch_callbacks(userdata); +} + +static void set_dispatch_callbacks(pa_operation *o) { + int done = 1; + + assert(o); + assert(o->ref >= 1); + assert(o->context); + assert(o->context->ref >= 1); + assert(o->context->state == PA_CONTEXT_READY); + + pa_pstream_set_drain_callback(o->context->pstream, NULL, NULL); + pa_pdispatch_set_drain_callback(o->context->pdispatch, NULL, NULL); + + if (pa_pdispatch_is_pending(o->context->pdispatch)) { + pa_pdispatch_set_drain_callback(o->context->pdispatch, pdispatch_drain_callback, o); + done = 0; + } + + if (pa_pstream_is_pending(o->context->pstream)) { + pa_pstream_set_drain_callback(o->context->pstream, pstream_drain_callback, o); + done = 0; + } + + if (done) { + if (o->callback) { + pa_context_notify_cb_t cb = (pa_context_notify_cb_t) o->callback; + cb(o->context, o->userdata); + } + + pa_operation_done(o); + pa_operation_unref(o); + } +} + +pa_operation* pa_context_drain(pa_context *c, pa_context_notify_cb_t cb, void *userdata) { + pa_operation *o; + + assert(c); + assert(c->ref >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(c, pa_context_is_pending(c), PA_ERR_BADSTATE); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + set_dispatch_callbacks(pa_operation_ref(o)); + + return o; +} + +void pa_context_simple_ack_callback(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_operation *o = userdata; + int success = 1; + + assert(pd); + assert(o); + assert(o->ref >= 1); + + if (!o->context) + goto finish; + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(o->context, command, t) < 0) + goto finish; + + success = 0; + } else if (!pa_tagstruct_eof(t)) { + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (o->callback) { + pa_context_success_cb_t cb = (pa_context_success_cb_t) o->callback; + cb(o->context, success, o->userdata); + } + +finish: + pa_operation_done(o); + pa_operation_unref(o); +} + +pa_operation* pa_context_exit_daemon(pa_context *c, pa_context_success_cb_t cb, void *userdata) { + pa_tagstruct *t; + pa_operation *o; + uint32_t tag; + + assert(c); + assert(c->ref >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_EXIT, &tag); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +pa_operation* pa_context_send_simple_command(pa_context *c, uint32_t command, pa_pdispatch_cb_t internal_cb, pa_operation_cb_t cb, void *userdata) { + pa_tagstruct *t; + pa_operation *o; + uint32_t tag; + + assert(c); + assert(c->ref >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + + o = pa_operation_new(c, NULL, cb, userdata); + + t = pa_tagstruct_command(c, command, &tag); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, internal_cb, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +pa_operation* pa_context_set_default_sink(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) { + pa_tagstruct *t; + pa_operation *o; + uint32_t tag; + + assert(c); + assert(c->ref >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_SET_DEFAULT_SINK, &tag); + pa_tagstruct_puts(t, name); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +pa_operation* pa_context_set_default_source(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) { + pa_tagstruct *t; + pa_operation *o; + uint32_t tag; + + assert(c); + assert(c->ref >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_SET_DEFAULT_SOURCE, &tag); + pa_tagstruct_puts(t, name); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +int pa_context_is_local(pa_context *c) { + assert(c); + + return c->local; +} + +pa_operation* pa_context_set_name(pa_context *c, const char *name, pa_context_success_cb_t cb, void *userdata) { + pa_tagstruct *t; + pa_operation *o; + uint32_t tag; + + assert(c); + assert(c->ref >= 1); + assert(name); + + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_SET_CLIENT_NAME, &tag); + pa_tagstruct_puts(t, name); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, pa_context_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +const char* pa_get_library_version(void) { + return PACKAGE_VERSION; +} + +const char* pa_context_get_server(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + if (!c->server) + return NULL; + + if (*c->server == '{') { + char *e = strchr(c->server+1, '}'); + return e ? e+1 : c->server; + } + + return c->server; +} + +uint32_t pa_context_get_protocol_version(PA_GCC_UNUSED pa_context *c) { + return PA_PROTOCOL_VERSION; +} + +uint32_t pa_context_get_server_protocol_version(pa_context *c) { + assert(c); + assert(c->ref >= 1); + + return c->version; +} + +pa_tagstruct *pa_tagstruct_command(pa_context *c, uint32_t command, uint32_t *tag) { + pa_tagstruct *t; + + assert(c); + assert(tag); + + t = pa_tagstruct_new(NULL, 0); + pa_tagstruct_putu32(t, command); + pa_tagstruct_putu32(t, *tag = c->ctag++); + + return t; +} -- cgit