int
     sem_close(sem_t *sem);

DESCRIPTION

     The system resources associated with the named semaphore referenced by
     sem are deallocated and the descriptor is invalidated.

     If successful, sem_close() will return 0.  Otherwise, -1 is returned and
     errno is set.

ERRORS

     sem_close() succeeds unless:

     [EINVAL]           sem is not a valid semaphore descriptor.

SEE ALSO

     semctl(2), semget(2), semop(2), sem_init(2), sem_open(2), sem_unlink(2)

HISTORY

     sem_close() is specified in the POSIX Realtime Extension
     (1003.1b-1993/1003.1i-1995).

Darwin                           June 8, 2000                           Darwin