NAME
pthread_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.
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 ALSO
pthread_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”).