PTHREAD_MUTEX_LOCK(3) BSD Library Functions Manual PTHREAD_MUTEX_LOCK(3)NAME
pthread_mutex_lock — lock a mutex
LIBRARY
POSIX Threads Library (libpthread, -lpthread)
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.
ERRORS
The pthread_mutex_lock() function 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)STANDARDS
The pthread_mutex_lock() function conforms to ISO/IEC 9945-1:1996
(“POSIX.1”).
BSD January 31, 2006 BSD
