pthread_mutex_trylock3
Attempt to lock a mutex without blocking
Usage
#include <pthread.h>
int
pthread_mutex_trylock(pthread_mutex_t *mutex);
Overview
The pthread_mutex_trylock() function locks mutex. If the mutex is already locked, pthread_mutex_trylock() will not block waiting for the mutex, but will return an error condition.
Return values
If successful, pthread_mutex_trylock() will return zero, otherwise an error number will be returned to indicate the error.
Errors
The pthread_mutex_trylock() function will fail if:
- [EINVAL]
-
The value specified by mutex is invalid.
- [EBUSY]
-
Mutex is already locked.
Releases
149 releases since Mac OS X 10.2; the text changed 2 times.