wakeup_first_thread  691 thread_sync.c      wakeup_first_thread(GET_QUEUE_WAITERS(self));
wakeup_first_thread 1043 thread_sync.c  	wakeup_first_thread(GET_SZQUEUE_WAITERS(self));
wakeup_first_thread 1205 thread_sync.c      wakeup_first_thread(GET_CONDVAR_WAITERS(self));