pthread_mutex_lock3
Lock a mutex
Usage
#include <pthread.h>
int
pthread_mutex_lock(pthread_mutex_t *mutex);
Overview
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.
Releases
149 releases since Mac OS X 10.2; the text changed 2 times.