pthread_mutex_trylock(3) BSD Library Functions Manual pthread_mutex_trylock(3)
NAME
pthread_mutex_trylock -- attempt to lock a mutex without blocking
SYNOPSIS
#include <pthread.h>
int
pthread_mutex_trylock(pthread_mutex_t *mutex);
DESCRIPTION
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
pthread_mutex_trylock() will fail if:
[EBUSY] Mutex is already locked.
[EINVAL] The value specified by mutex is invalid.
SEE ALSO
pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_lock(3),
pthread_mutex_unlock(3)
STANDARDS
pthread_mutex_trylock() conforms to ISO/IEC 9945-1:1996 (``POSIX.1'').
BSD July 30, 1998 BSD
Mac OS X 10.8 - Generated Thu Aug 30 05:56:57 CDT 2012