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Revert "ConfBridge: Rework announcer channel methodology"
This reverts commit 0cdeb2bfb0.
Change-Id: I18ba73b6d4dc0b994f4ffb01ae0b6cfad36ac636
This commit is contained in:
Joshua Colp
@@ -71,7 +71,6 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/stasis_bridges.h"
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#include "asterisk/json.h"
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#include "asterisk/format_cache.h"
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#include "asterisk/taskprocessor.h"
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/*** DOCUMENTATION
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<application name="ConfBridge" language="en_US">
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@@ -960,59 +959,6 @@ static void handle_video_on_exit(struct confbridge_conference *conference, struc
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ao2_unlock(conference);
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}
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struct hangup_data
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{
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struct confbridge_conference *conference;
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ast_mutex_t lock;
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ast_cond_t cond;
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int hungup;
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};
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/*!
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* \brief Hang up the announcer channel
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*
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* This hangs up the announcer channel in the conference. This
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* runs in the playback queue taskprocessor since we do not want
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* to hang up the channel while it's trying to play an announcement.
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*
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* This task is performed synchronously, so there is no need to
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* perform any cleanup on the passed-in data.
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*
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* \param data A hangup_data structure
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* \return 0
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*/
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static int hangup_playback(void *data)
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{
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struct hangup_data *hangup = data;
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ast_autoservice_stop(hangup->conference->playback_chan);
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ast_hangup(hangup->conference->playback_chan);
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hangup->conference->playback_chan = NULL;
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ast_mutex_lock(&hangup->lock);
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hangup->hungup = 1;
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ast_cond_signal(&hangup->cond);
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ast_mutex_unlock(&hangup->lock);
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return 0;
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}
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static void hangup_data_init(struct hangup_data *hangup, struct confbridge_conference *conference)
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{
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ast_mutex_init(&hangup->lock);
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ast_cond_init(&hangup->cond, NULL);
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hangup->conference = conference;
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hangup->hungup = 0;
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}
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static void hangup_data_destroy(struct hangup_data *hangup)
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{
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ast_mutex_destroy(&hangup->lock);
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ast_cond_destroy(&hangup->cond);
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}
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/*!
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* \brief Destroy a conference bridge
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*
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@@ -1027,22 +973,9 @@ static void destroy_conference_bridge(void *obj)
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ast_debug(1, "Destroying conference bridge '%s'\n", conference->name);
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if (conference->playback_chan) {
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if (conference->playback_queue) {
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struct hangup_data hangup;
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hangup_data_init(&hangup, conference);
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ast_taskprocessor_push(conference->playback_queue, hangup_playback, &hangup);
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ast_mutex_lock(&hangup.lock);
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while (!hangup.hungup) {
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ast_cond_wait(&hangup.cond, &hangup.lock);
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}
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ast_mutex_unlock(&hangup.lock);
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hangup_data_destroy(&hangup);
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} else {
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/* Playback queue is not yet allocated. Just hang up the channel straight */
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ast_hangup(conference->playback_chan);
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conference->playback_chan = NULL;
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}
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conf_announce_channel_depart(conference->playback_chan);
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ast_hangup(conference->playback_chan);
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conference->playback_chan = NULL;
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}
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/* Destroying a conference bridge is simple, all we have to do is destroy the bridging object */
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@@ -1056,7 +989,7 @@ static void destroy_conference_bridge(void *obj)
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ast_free(conference->record_filename);
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conf_bridge_profile_destroy(&conference->b_profile);
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ast_taskprocessor_unreference(conference->playback_queue);
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ast_mutex_destroy(&conference->playback_lock);
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}
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/*! \brief Call the proper join event handler for the user for the conference bridge's current state
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@@ -1336,72 +1269,6 @@ void conf_ended(struct confbridge_conference *conference)
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ao2_unlock(conference);
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}
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/*!
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* \internal
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* \brief Allocate playback channel for a conference.
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* \pre expects conference to be locked before calling this function
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*/
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static int alloc_playback_chan(struct confbridge_conference *conference)
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{
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struct ast_format_cap *cap;
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char taskprocessor_name[AST_TASKPROCESSOR_MAX_NAME + 1];
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cap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
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if (!cap) {
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return -1;
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}
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ast_format_cap_append(cap, ast_format_slin, 0);
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conference->playback_chan = ast_request("CBAnn", cap, NULL, NULL,
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conference->name, NULL);
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ao2_ref(cap, -1);
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if (!conference->playback_chan) {
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return -1;
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}
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/* To make sure playback_chan has the same language as the bridge */
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ast_channel_lock(conference->playback_chan);
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ast_channel_language_set(conference->playback_chan, conference->b_profile.language);
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ast_channel_unlock(conference->playback_chan);
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ast_debug(1, "Created announcer channel '%s' to conference bridge '%s'\n",
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ast_channel_name(conference->playback_chan), conference->name);
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ast_taskprocessor_build_name(taskprocessor_name, sizeof(taskprocessor_name),
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"Confbridge/%s", conference->name);
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conference->playback_queue = ast_taskprocessor_get(taskprocessor_name, TPS_REF_DEFAULT);
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if (!conference->playback_queue) {
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ast_hangup(conference->playback_chan);
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conference->playback_chan = NULL;
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return -1;
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}
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return 0;
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}
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/*!
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* \brief Push the announcer channel into the bridge
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*
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* This runs in the playback queue taskprocessor.
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*
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* \param data A confbridge_conference
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* \retval 0 Success
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* \retval -1 Failed to push the channel to the bridge
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*/
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static int push_announcer(void *data)
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{
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struct confbridge_conference *conference = data;
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if (conf_announce_channel_push(conference->playback_chan)) {
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ast_hangup(conference->playback_chan);
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conference->playback_chan = NULL;
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ao2_cleanup(conference);
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return -1;
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}
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ast_autoservice_start(conference->playback_chan);
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ao2_cleanup(conference);
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return 0;
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}
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/*!
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* \brief Join a conference bridge
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*
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@@ -1447,6 +1314,9 @@ static struct confbridge_conference *join_conference_bridge(const char *conferen
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return NULL;
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}
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/* Setup lock for playback channel */
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ast_mutex_init(&conference->playback_lock);
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/* Setup for the record channel */
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conference->record_filename = ast_str_create(RECORD_FILENAME_INITIAL_SPACE);
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if (!conference->record_filename) {
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@@ -1491,22 +1361,6 @@ static struct confbridge_conference *join_conference_bridge(const char *conferen
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/* Set the initial state to EMPTY */
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conference->state = CONF_STATE_EMPTY;
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if (alloc_playback_chan(conference)) {
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ao2_unlink(conference_bridges, conference);
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ao2_ref(conference, -1);
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ao2_unlock(conference_bridges);
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ast_log(LOG_ERROR, "Could not allocate announcer channel for conference '%s'\n", conference_name);
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return NULL;
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}
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if (ast_taskprocessor_push(conference->playback_queue, push_announcer, ao2_bump(conference))) {
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ao2_unlink(conference_bridges, conference);
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ao2_ref(conference, -1);
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ao2_unlock(conference_bridges);
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ast_log(LOG_ERROR, "Could not add announcer channel for conference '%s' bridge\n", conference_name);
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return NULL;
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}
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if (ast_test_flag(&conference->b_profile, BRIDGE_OPT_RECORD_CONFERENCE)) {
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ao2_lock(conference);
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conf_start_record(conference);
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@@ -1627,105 +1481,67 @@ static void leave_conference(struct confbridge_user *user)
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user->conference = NULL;
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}
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struct playback_task_data {
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struct confbridge_conference *conference;
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const char *filename;
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int say_number;
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int playback_finished;
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ast_mutex_t lock;
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ast_cond_t cond;
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};
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/*!
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* \brief Play an announcement into a confbridge
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*
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* This runs in the playback queue taskprocessor. This ensures that
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* all playbacks are handled in sequence and do not play over top one
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* another.
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*
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* This task runs synchronously so there is no need for performing any
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* sort of cleanup on the input parameter.
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*
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* \param data A playback_task_data
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* \return 0
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* \internal
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* \brief Allocate playback channel for a conference.
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* \pre expects conference to be locked before calling this function
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*/
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static int playback_task(void *data)
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static int alloc_playback_chan(struct confbridge_conference *conference)
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{
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struct playback_task_data *ptd = data;
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struct ast_format_cap *cap;
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/* Don't try to play if the playback channel has been hung up */
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if (!ptd->conference->playback_chan) {
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goto end;
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cap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
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if (!cap) {
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return -1;
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}
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ast_format_cap_append(cap, ast_format_slin, 0);
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conference->playback_chan = ast_request("CBAnn", cap, NULL, NULL,
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conference->name, NULL);
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ao2_ref(cap, -1);
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if (!conference->playback_chan) {
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return -1;
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}
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ast_autoservice_stop(ptd->conference->playback_chan);
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/* The channel is all under our control, in goes the prompt */
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if (!ast_strlen_zero(ptd->filename)) {
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ast_stream_and_wait(ptd->conference->playback_chan, ptd->filename, "");
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} else if (ptd->say_number >= 0) {
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ast_say_number(ptd->conference->playback_chan, ptd->say_number, "",
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ast_channel_language(ptd->conference->playback_chan), NULL);
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}
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ast_autoservice_start(ptd->conference->playback_chan);
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end:
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ast_mutex_lock(&ptd->lock);
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ptd->playback_finished = 1;
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ast_cond_signal(&ptd->cond);
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ast_mutex_unlock(&ptd->lock);
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/* To make sure playback_chan has the same language of that profile */
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ast_channel_lock(conference->playback_chan);
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ast_channel_language_set(conference->playback_chan, conference->b_profile.language);
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ast_channel_unlock(conference->playback_chan);
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ast_debug(1, "Created announcer channel '%s' to conference bridge '%s'\n",
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ast_channel_name(conference->playback_chan), conference->name);
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return 0;
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}
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static void playback_task_data_init(struct playback_task_data *ptd, struct confbridge_conference *conference,
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const char *filename, int say_number)
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{
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ast_mutex_init(&ptd->lock);
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ast_cond_init(&ptd->cond, NULL);
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ptd->filename = filename;
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ptd->say_number = say_number;
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ptd->conference = conference;
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ptd->playback_finished = 0;
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}
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static void playback_task_data_destroy(struct playback_task_data *ptd)
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{
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ast_mutex_destroy(&ptd->lock);
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ast_cond_destroy(&ptd->cond);
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}
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static int play_sound_helper(struct confbridge_conference *conference, const char *filename, int say_number)
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{
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struct playback_task_data ptd;
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/* Do not waste resources trying to play files that do not exist */
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if (!ast_strlen_zero(filename) && !sound_file_exists(filename)) {
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return 0;
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}
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playback_task_data_init(&ptd, conference, filename, say_number);
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if (ast_taskprocessor_push(conference->playback_queue, playback_task, &ptd)) {
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if (!ast_strlen_zero(filename)) {
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ast_log(LOG_WARNING, "Unable to play file '%s' to conference %s\n",
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filename, conference->name);
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} else {
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ast_log(LOG_WARNING, "Unable to say number '%d' to conference %s\n",
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say_number, conference->name);
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}
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playback_task_data_destroy(&ptd);
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ast_mutex_lock(&conference->playback_lock);
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if (!conference->playback_chan && alloc_playback_chan(conference)) {
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ast_mutex_unlock(&conference->playback_lock);
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return -1;
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}
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if (conf_announce_channel_push(conference->playback_chan)) {
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ast_mutex_unlock(&conference->playback_lock);
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return -1;
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}
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/* Wait for the playback to complete */
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ast_mutex_lock(&ptd.lock);
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while (!ptd.playback_finished) {
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ast_cond_wait(&ptd.cond, &ptd.lock);
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/* The channel is all under our control, in goes the prompt */
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if (!ast_strlen_zero(filename)) {
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ast_stream_and_wait(conference->playback_chan, filename, "");
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} else if (say_number >= 0) {
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ast_say_number(conference->playback_chan, say_number, "",
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ast_channel_language(conference->playback_chan), NULL);
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}
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ast_mutex_unlock(&ptd.lock);
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playback_task_data_destroy(&ptd);
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ast_debug(1, "Departing announcer channel '%s' from conference bridge '%s'\n",
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ast_channel_name(conference->playback_chan), conference->name);
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conf_announce_channel_depart(conference->playback_chan);
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ast_mutex_unlock(&conference->playback_lock);
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return 0;
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}
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