PTHREAD_MUTEX_TRYLOCK(3) | Library Functions Manual | PTHREAD_MUTEX_TRYLOCK(3) |
pthread_mutex_trylock
—
attempt to lock a mutex without blocking
#include
<pthread.h>
int
pthread_mutex_trylock
(pthread_mutex_t
*mutex);
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.
If successful, pthread_mutex_trylock
()
will return zero, otherwise an error number will be returned to indicate the
error.
The pthread_mutex_trylock
() function will
fail if:
pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_lock(3), pthread_mutex_unlock(3)
The pthread_mutex_trylock
() function
conforms to ISO/IEC 9945-1:1996
(“POSIX.1”).
July 30, 1998 | macOS 14.6 |