NAME    [Toc]    [Back]

     pthread_mutex_unlock - unlock a mutex

SYNOPSIS    [Toc]    [Back]

     #include <pthread.h>

     int
     pthread_mutex_unlock(pthread_mutex_t *mutex);

DESCRIPTION    [Toc]    [Back]

     If the current thread holds the lock on mutex, then the
     pthread_mutex_unlock() function unlocks mutex.

RETURN VALUES    [Toc]    [Back]

     If successful, pthread_mutex_unlock() will return zero, otherwise an error
 number will be returned to indicate the error.

ERRORS    [Toc]    [Back]

     pthread_mutex_trylock() will fail if:

     [EINVAL]      The value specified by mutex is invalid.

     [EPERM]        The  current  thread  does not hold a lock on
mutex.

SEE ALSO    [Toc]    [Back]

     pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_lock(3),
     pthread_mutex_trylock(3)

STANDARDS    [Toc]    [Back]

     pthread_mutex_unlock()   conforms   to  ISO/IEC  9945-1:1996
(``POSIX'').

OpenBSD     3.6                           July      30,      1998