NAME

pthread_mutex_unlock - unlock a mutex

LIBRARY

POSIX Thread Library (libpthread, -lpthread)

SYNOPSIS



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() may 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'') .