mutex_lock()

mutex_trylock()

mutex_unlock()

rw_rdlock()

rw_tryrdlock()

rw_wrlock()

rw_trywrlock()

rw_unlock()

thr_create()

thr_join()

cond_signal()

cond_broadcast()

cond_wait()

cond_timedwait()

cond_reltimedwait()

sema_post()

sema_wait()

sema_trywait()