int app_subscribe_channel(struct stasis_app *app, struct ast_channel *chan)
{
int res;
if (!app || !chan) {
return -1;
} else {
RAII_VAR(struct app_forwards *, forwards, NULL, ao2_cleanup);
SCOPED_AO2LOCK(lock, app->forwards);
forwards = ao2_find(app->forwards, ast_channel_uniqueid(chan),
OBJ_SEARCH_KEY | OBJ_NOLOCK);
if (!forwards) {
/* Forwards not found, create one */
forwards = forwards_create_channel(app, chan);
if (!forwards) {
return -1;
}
res = ao2_link_flags(app->forwards, forwards,
OBJ_NOLOCK);
if (!res) {
return -1;
}
}
++forwards->interested;
ast_debug(3, "Channel '%s' is %d interested in %s\n", ast_channel_uniqueid(chan), forwards->interested, app->name);
return 0;
}
}
int app_subscribe_channel(struct stasis_app *app, struct ast_channel *chan)
{
struct app_forwards *forwards;
if (!app) {
return -1;
}
ao2_lock(app->forwards);
/* If subscribed to all, don't subscribe again */
forwards = ao2_find(app->forwards, CHANNEL_ALL, OBJ_SEARCH_KEY | OBJ_NOLOCK);
if (forwards) {
ao2_unlock(app->forwards);
ao2_ref(forwards, -1);
return 0;
}
forwards = ao2_find(app->forwards,
chan ? ast_channel_uniqueid(chan) : CHANNEL_ALL,
OBJ_SEARCH_KEY | OBJ_NOLOCK);
if (!forwards) {
int res;
/* Forwards not found, create one */
forwards = forwards_create_channel(app, chan);
if (!forwards) {
ao2_unlock(app->forwards);
return -1;
}
res = ao2_link_flags(app->forwards, forwards, OBJ_NOLOCK);
if (!res) {
ao2_unlock(app->forwards);
ao2_ref(forwards, -1);
return -1;
}
}
++forwards->interested;
ast_debug(3, "Channel '%s' is %d interested in %s\n",
chan ? ast_channel_uniqueid(chan) : "ALL",
forwards->interested,
app->name);
ao2_unlock(app->forwards);
ao2_ref(forwards, -1);
return 0;
}