diff options
Diffstat (limited to 'src/pulse')
| -rw-r--r-- | src/pulse/context.c | 5 | ||||
| -rw-r--r-- | src/pulse/ext-device-manager.c | 358 | ||||
| -rw-r--r-- | src/pulse/ext-device-manager.h | 106 | ||||
| -rw-r--r-- | src/pulse/internal.h | 6 |
4 files changed, 475 insertions, 0 deletions
diff --git a/src/pulse/context.c b/src/pulse/context.c index 23ae30ce..7468d0a9 100644 --- a/src/pulse/context.c +++ b/src/pulse/context.c @@ -128,6 +128,9 @@ static void reset_callbacks(pa_context *c) { c->event_callback = NULL; c->event_userdata = NULL; + c->ext_device_manager.callback = NULL; + c->ext_device_manager.userdata = NULL; + c->ext_stream_restore.callback = NULL; c->ext_stream_restore.userdata = NULL; } @@ -1434,6 +1437,8 @@ void pa_command_extension(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_t if (!strcmp(name, "module-stream-restore")) pa_ext_stream_restore_command(c, tag, t); + else if (!strcmp(name, "module-device-manager")) + pa_ext_device_manager_command(c, tag, t); else pa_log(_("Received message for unknown extension '%s'"), name); diff --git a/src/pulse/ext-device-manager.c b/src/pulse/ext-device-manager.c new file mode 100644 index 00000000..1c6eee5e --- /dev/null +++ b/src/pulse/ext-device-manager.c @@ -0,0 +1,358 @@ +/*** + This file is part of PulseAudio. + + Copyright 2008 Lennart Poettering + Copyright 2009 Colin Guthrie + + 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 + 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 <pulse/context.h> +#include <pulse/gccmacro.h> + +#include <pulsecore/macro.h> +#include <pulsecore/pstream-util.h> + +#include "internal.h" +#include "operation.h" +#include "fork-detect.h" + +#include "ext-device-manager.h" + +enum { + SUBCOMMAND_TEST, + SUBCOMMAND_READ, + SUBCOMMAND_WRITE, + SUBCOMMAND_DELETE, + SUBCOMMAND_SUBSCRIBE, + SUBCOMMAND_EVENT +}; + +static void ext_device_manager_test_cb(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_operation *o = userdata; + uint32_t version = PA_INVALID_INDEX; + + pa_assert(pd); + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (!o->context) + goto finish; + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(o->context, command, t, FALSE) < 0) + goto finish; + + } else if (pa_tagstruct_getu32(t, &version) < 0 || + !pa_tagstruct_eof(t)) { + + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (o->callback) { + pa_ext_device_manager_test_cb_t cb = (pa_ext_device_manager_test_cb_t) o->callback; + cb(o->context, version, o->userdata); + } + +finish: + pa_operation_done(o); + pa_operation_unref(o); +} + +pa_operation *pa_ext_device_manager_test( + pa_context *c, + pa_ext_device_manager_test_cb_t cb, + void *userdata) { + + uint32_t tag; + pa_operation *o; + pa_tagstruct *t; + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag); + pa_tagstruct_putu32(t, PA_INVALID_INDEX); + pa_tagstruct_puts(t, "module-device-manager"); + pa_tagstruct_putu32(t, SUBCOMMAND_TEST); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, ext_device_manager_test_cb, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +static void ext_device_manager_read_cb(pa_pdispatch *pd, uint32_t command, uint32_t tag, pa_tagstruct *t, void *userdata) { + pa_operation *o = userdata; + int eol = 1; + + pa_assert(pd); + pa_assert(o); + pa_assert(PA_REFCNT_VALUE(o) >= 1); + + if (!o->context) + goto finish; + + if (command != PA_COMMAND_REPLY) { + if (pa_context_handle_error(o->context, command, t, FALSE) < 0) + goto finish; + + eol = -1; + } else { + + while (!pa_tagstruct_eof(t)) { + pa_ext_device_manager_info i; + + memset(&i, 0, sizeof(i)); + + if (pa_tagstruct_gets(t, &i.name) < 0 || + pa_tagstruct_gets(t, &i.description) < 0) { + + pa_context_fail(o->context, PA_ERR_PROTOCOL); + goto finish; + } + + if (o->callback) { + pa_ext_device_manager_read_cb_t cb = (pa_ext_device_manager_read_cb_t) o->callback; + cb(o->context, &i, 0, o->userdata); + } + } + } + + if (o->callback) { + pa_ext_device_manager_read_cb_t cb = (pa_ext_device_manager_read_cb_t) o->callback; + cb(o->context, NULL, eol, o->userdata); + } + +finish: + pa_operation_done(o); + pa_operation_unref(o); +} + +pa_operation *pa_ext_device_manager_read( + pa_context *c, + pa_ext_device_manager_read_cb_t cb, + void *userdata) { + + uint32_t tag; + pa_operation *o; + pa_tagstruct *t; + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag); + pa_tagstruct_putu32(t, PA_INVALID_INDEX); + pa_tagstruct_puts(t, "module-device-manager"); + pa_tagstruct_putu32(t, SUBCOMMAND_READ); + pa_pstream_send_tagstruct(c->pstream, t); + pa_pdispatch_register_reply(c->pdispatch, tag, DEFAULT_TIMEOUT, ext_device_manager_read_cb, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref); + + return o; +} + +pa_operation *pa_ext_device_manager_write( + pa_context *c, + pa_update_mode_t mode, + const pa_ext_device_manager_info data[], + unsigned n, + int apply_immediately, + pa_context_success_cb_t cb, + void *userdata) { + + uint32_t tag; + pa_operation *o = NULL; + pa_tagstruct *t = NULL; + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + pa_assert(mode == PA_UPDATE_MERGE || mode == PA_UPDATE_REPLACE || mode == PA_UPDATE_SET); + pa_assert(data); + + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag); + pa_tagstruct_putu32(t, PA_INVALID_INDEX); + pa_tagstruct_puts(t, "module-device-manager"); + pa_tagstruct_putu32(t, SUBCOMMAND_WRITE); + + pa_tagstruct_putu32(t, mode); + pa_tagstruct_put_boolean(t, apply_immediately); + + for (; n > 0; n--, data++) { + if (!data->name || !*data->name) + goto fail; + + pa_tagstruct_puts(t, data->name); + pa_tagstruct_puts(t, data->description); + } + + 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; + +fail: + if (o) { + pa_operation_cancel(o); + pa_operation_unref(o); + } + + if (t) + pa_tagstruct_free(t); + + pa_context_set_error(c, PA_ERR_INVALID); + return NULL; +} + +pa_operation *pa_ext_device_manager_delete( + pa_context *c, + const char *const s[], + pa_context_success_cb_t cb, + void *userdata) { + + uint32_t tag; + pa_operation *o = NULL; + pa_tagstruct *t = NULL; + const char *const *k; + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + pa_assert(s); + + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag); + pa_tagstruct_putu32(t, PA_INVALID_INDEX); + pa_tagstruct_puts(t, "module-device-manager"); + pa_tagstruct_putu32(t, SUBCOMMAND_DELETE); + + for (k = s; *k; k++) { + if (!*k || !**k) + goto fail; + + pa_tagstruct_puts(t, *k); + } + + 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; + +fail: + if (o) { + pa_operation_cancel(o); + pa_operation_unref(o); + } + + if (t) + pa_tagstruct_free(t); + + pa_context_set_error(c, PA_ERR_INVALID); + return NULL; +} + +pa_operation *pa_ext_device_manager_subscribe( + pa_context *c, + int enable, + pa_context_success_cb_t cb, + void *userdata) { + + uint32_t tag; + pa_operation *o; + pa_tagstruct *t; + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + PA_CHECK_VALIDITY_RETURN_NULL(c, !pa_detect_fork(), PA_ERR_FORKED); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->state == PA_CONTEXT_READY, PA_ERR_BADSTATE); + PA_CHECK_VALIDITY_RETURN_NULL(c, c->version >= 14, PA_ERR_NOTSUPPORTED); + + o = pa_operation_new(c, NULL, (pa_operation_cb_t) cb, userdata); + + t = pa_tagstruct_command(c, PA_COMMAND_EXTENSION, &tag); + pa_tagstruct_putu32(t, PA_INVALID_INDEX); + pa_tagstruct_puts(t, "module-device-manager"); + pa_tagstruct_putu32(t, SUBCOMMAND_SUBSCRIBE); + pa_tagstruct_put_boolean(t, enable); + 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; +} + +void pa_ext_device_manager_set_subscribe_cb( + pa_context *c, + pa_ext_device_manager_subscribe_cb_t cb, + void *userdata) { + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + + if (pa_detect_fork()) + return; + + c->ext_device_manager.callback = cb; + c->ext_device_manager.userdata = userdata; +} + +void pa_ext_device_manager_command(pa_context *c, uint32_t tag, pa_tagstruct *t) { + uint32_t subcommand; + + pa_assert(c); + pa_assert(PA_REFCNT_VALUE(c) >= 1); + pa_assert(t); + + if (pa_tagstruct_getu32(t, &subcommand) < 0 || + !pa_tagstruct_eof(t)) { + + pa_context_fail(c, PA_ERR_PROTOCOL); + return; + } + + if (subcommand != SUBCOMMAND_EVENT) { + pa_context_fail(c, PA_ERR_PROTOCOL); + return; + } + + if (c->ext_device_manager.callback) + c->ext_device_manager.callback(c, c->ext_device_manager.userdata); +} diff --git a/src/pulse/ext-device-manager.h b/src/pulse/ext-device-manager.h new file mode 100644 index 00000000..eed0c50c --- /dev/null +++ b/src/pulse/ext-device-manager.h @@ -0,0 +1,106 @@ +#ifndef foopulseextdevicemanagerhfoo +#define foopulseextdevicemanagerhfoo + +/*** + This file is part of PulseAudio. + + Copyright 2008 Lennart Poettering + Copyright 2009 Colin Guthrie + + 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 + 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/context.h> +#include <pulse/version.h> + +/** \file + * + * Routines for controlling module-stream-restore + */ + +PA_C_DECL_BEGIN + +/** Stores information about one device in the device database that is + * maintained by module-device-manager. \since 0.9.17 */ +typedef struct pa_ext_device_manager_info { + const char *name; /**< Identifier string of the device. A string like "sink:" or similar followed by the name of the device. */ + const char *description; /**< The description of the device when it was last seen, if applicable and saved */ +} pa_ext_device_manager_info; + +/** Callback prototype for pa_ext_device_manager_test(). \since 0.9.17 */ +typedef void (*pa_ext_device_manager_test_cb_t)( + pa_context *c, + uint32_t version, + void *userdata); + +/** Test if this extension module is available in the server. \since 0.9.17 */ +pa_operation *pa_ext_device_manager_test( + pa_context *c, + pa_ext_device_manager_test_cb_t cb, + void *userdata); + +/** Callback prototype for pa_ext_device_manager_read(). \since 0.9.17 */ +typedef void (*pa_ext_device_manager_read_cb_t)( + pa_context *c, + const pa_ext_device_manager_info *info, + int eol, + void *userdata); + +/** Read all entries from the device database. \since 0.9.17 */ +pa_operation *pa_ext_device_manager_read( + pa_context *c, + pa_ext_device_manager_read_cb_t cb, + void *userdata); + +/** Store entries in the device database. \since 0.9.17 */ +pa_operation *pa_ext_device_manager_write( + pa_context *c, + pa_update_mode_t mode, + const pa_ext_device_manager_info data[], + unsigned n, + int apply_immediately, + pa_context_success_cb_t cb, + void *userdata); + +/** Delete entries from the device database. \since 0.9.17 */ +pa_operation *pa_ext_device_manager_delete( + pa_context *c, + const char *const s[], + pa_context_success_cb_t cb, + void *userdata); + +/** Subscribe to changes in the device database. \since 0.9.17 */ +pa_operation *pa_ext_device_manager_subscribe( + pa_context *c, + int enable, + pa_context_success_cb_t cb, + void *userdata); + +/** Callback prototype for pa_ext_device_manager_set_subscribe_cb(). \since 0.9.17 */ +typedef void (*pa_ext_device_manager_subscribe_cb_t)( + pa_context *c, + void *userdata); + +/** Set the subscription callback that is called when + * pa_ext_device_manager_subscribe() was called. \since 0.9.17 */ +void pa_ext_device_manager_set_subscribe_cb( + pa_context *c, + pa_ext_device_manager_subscribe_cb_t cb, + void *userdata); + +PA_C_DECL_END + +#endif diff --git a/src/pulse/internal.h b/src/pulse/internal.h index e069c9e9..b371bfc2 100644 --- a/src/pulse/internal.h +++ b/src/pulse/internal.h @@ -28,6 +28,7 @@ #include <pulse/stream.h> #include <pulse/operation.h> #include <pulse/subscribe.h> +#include <pulse/ext-device-manager.h> #include <pulse/ext-stream-restore.h> #include <pulsecore/socket-client.h> @@ -102,6 +103,10 @@ struct pa_context { /* Extension specific data */ struct { + pa_ext_device_manager_subscribe_cb_t callback; + void *userdata; + } ext_device_manager; + struct { pa_ext_stream_restore_subscribe_cb_t callback; void *userdata; } ext_stream_restore; @@ -283,6 +288,7 @@ pa_tagstruct *pa_tagstruct_command(pa_context *c, uint32_t command, uint32_t *ta #define PA_FAIL_RETURN_NULL(context, error) \ PA_FAIL_RETURN_ANY(context, error, NULL) +void pa_ext_device_manager_command(pa_context *c, uint32_t tag, pa_tagstruct *t); void pa_ext_stream_restore_command(pa_context *c, uint32_t tag, pa_tagstruct *t); pa_bool_t pa_mainloop_is_our_api(pa_mainloop_api*m); |