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PTHREAD_MUTEX_UNLOCK(3) Library Functions Manual PTHREAD_MUTEX_UNLOCK(3)

NAME

pthread_mutex_unlockunlock 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)

STANDARDS

pthread_mutex_unlock() conforms to ISO/IEC 9945-1:1996 (“POSIX.1”).
June 5, 2013 OpenBSD-current