MirBSD manpage: pthread_mutex_trylock(3)

PTHREAD_MUTEX_TRYLOCK(3)   BSD Programmer's 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 er-
     ror number will be returned to indicate the error.

ERRORS

     pthread_mutex_trylock() will fail if:

     [EINVAL]      The value specified by mutex is invalid.

     [EBUSY]       mutex is already locked.

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").

MirBSD #10-current              July 30, 1998                                1