PTHREAD_MUTEX_LOCK(3) OpenBSD Programmer's Manual PTHREAD_MUTEX_LOCK(3)NAMEpthread_mutex_lock - lock a mutex
SYNOPSIS
#include <pthread.h>
int
pthread_mutex_lock(pthread_mutex_t *mutex);
DESCRIPTION
The pthread_mutex_lock() function locks mutex. If the mutex is already
locked, the calling thread will block until the mutex becomes available.
RETURN VALUES
If successful, pthread_mutex_lock() will return zero, otherwise an error
number will be returned to indicate the error.
ERRORSpthread_mutex_lock() will fail if:
[EINVAL] The value specified by mutex is invalid.
[EDEADLK] A deadlock would occur if the thread blocked waiting for
mutex.
SEE ALSOpthread_mutex_destroy(3), pthread_mutex_init(3),
pthread_mutex_trylock(3), pthread_mutex_unlock(3)STANDARDSpthread_mutex_lock() conforms to ISO/IEC 9945-1:1996 (``POSIX'').
OpenBSD 4.9 July 26, 2007 OpenBSD 4.9