cond_wait_common
return (cond_wait_common(cond, mutex, NULL, 0));
return (cond_wait_common(cond, mutex, NULL, 1));
return (cond_wait_common(cond, mutex, abstime, 0));
return (cond_wait_common(cond, mutex, abstime, 1));
static int cond_wait_common(pthread_cond_t *cond, pthread_mutex_t *mutex,