struct stasis_subscription *stasis_subscribe_pool(
struct stasis_topic *topic,
stasis_subscription_cb callback,
void *data)
{
return internal_stasis_subscribe(topic, callback, data, 1, 1);
}
struct stasis_caching_topic *stasis_caching_topic_create(struct stasis_topic *original_topic, struct stasis_cache *cache)
{
RAII_VAR(struct stasis_caching_topic *, caching_topic, NULL, ao2_cleanup);
struct stasis_subscription *sub;
RAII_VAR(char *, new_name, NULL, ast_free);
int ret;
ret = ast_asprintf(&new_name, "%s-cached", stasis_topic_name(original_topic));
if (ret < 0) {
return NULL;
}
caching_topic = ao2_alloc_options(sizeof(*caching_topic),
stasis_caching_topic_dtor, AO2_ALLOC_OPT_LOCK_NOLOCK);
if (caching_topic == NULL) {
return NULL;
}
caching_topic->topic = stasis_topic_create(new_name);
if (caching_topic->topic == NULL) {
return NULL;
}
ao2_ref(cache, +1);
caching_topic->cache = cache;
sub = internal_stasis_subscribe(original_topic, caching_topic_exec, caching_topic, 0);
if (sub == NULL) {
return NULL;
}
ao2_ref(original_topic, +1);
caching_topic->original_topic = original_topic;
/* This is for the reference contained in the subscription above */
ao2_ref(caching_topic, +1);
caching_topic->sub = sub;
/* The subscription holds the reference, so no additional ref bump. */
return caching_topic;
}
