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PTHREAD_MUTEX_UNLOCK(3) BSD Library Functions Manual PTHREAD_MUTEX_UNLOCK(3) NAME pthread_mutex_unlock -- unlock a mutex SYNOPSIS #include <pthread.h> int pthread_mutex_unlock(pthread_mutex_t *mutex); DESCRIPTION If the current thread holds the lock on mutex, then the pthread_mutex_unlock() function unlocks mutex. RETURN VALUES If successful, pthread_mutex_unlock() will return zero. Otherwise, an error number will be returned to indicate the error. ERRORS pthread_mutex_unlock() will fail if: [EINVAL] The value specified by mutex is invalid. [EPERM] The current thread does not hold a lock on mutex. SEE ALSO pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_lock(3), pthread_mutex_trylock(3) STANDARDS pthread_mutex_unlock() conforms to ISO/IEC 9945-1:1996 (``POSIX.1''). BSD July 30, 1998 BSD |