DBG2("UST app send channel to sock %d pid %d (name: %s, key: %" PRIu64 ")",
app->sock, app->pid, channel->name, channel->tracing_channel_id);
/* Send stream to application. */
pthread_mutex_lock(&app->sock_lock);
DBG2("UST app send channel to sock %d pid %d (name: %s, key: %" PRIu64 ")",
app->sock, app->pid, channel->name, channel->tracing_channel_id);
/* Send stream to application. */
pthread_mutex_lock(&app->sock_lock);