EN JA
PTHREAD_MUTEX_UNLOCK(3)
PTHREAD_MUTEX_UNLOCK(3) FreeBSD Library Functions Manual PTHREAD_MUTEX_UNLOCK(3)

NAME

pthread_mutex_unlockunlock a mutex

LIBRARY

POSIX Threads Library (libpthread, -lpthread)

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

The pthread_mutex_unlock() function will fail if:
[ EINVAL]
The value specified by mutex is invalid.
[ EPERM]
The current thread does not hold a lock on mutex.

STANDARDS

The pthread_mutex_unlock() function conforms to ISO/IEC 9945-1:1996 (“POSIX.1”).
July 30, 1998 FreeBSD