PTHREAD_MUTEX_TIMEDLOCK(3)				   BSD Library Functions Manual 				PTHREAD_MUTEX_TIMEDLOCK(3)

NAME

     pthread_mutex_timedlock -- lock a mutex without blocking indefinitely

LIBRARY

     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS

     #include <pthread.h>
     #include <time.h>

     int
     pthread_mutex_timedlock(pthread_mutex_t *mutex, const struct timespec *abs_timeout);

DESCRIPTION

     The pthread_mutex_timedlock() function will lock mutex.  If it is already locked the calling thread will block until the mutex becomes avail-
     able or the timeout, specified by abs_timeout, expires.  The time of the timeout is an absolute time and is not relative to the current time.

RETURN VALUES

     If successful, pthread_mutex_timedlock() will return zero, otherwise an error number will be returned to indicate the error.

ERRORS

     The pthread_mutex_timedlock() function will fail if:

     [EINVAL]		The mutex was created with the protocol attribute having the value PTHREAD_PRIO_PROTECT and the calling thread's priority
			is higher than the mutex's current priority ceiling.

     [EINVAL]		The process or thread would have blocked, and abs_timeout specified a nanosecond value less than zero or greater than or
			equal to 1 billion.

     [EINVAL]		The mutex parameter is invalid.

     [ETIMEDOUT]	The mutex could not be locked before the timeout expired.

     [EAGAIN]		The mutex could not be acquired because the maximum number of recursive locks for the mutex has been exceeded.

     [EDEADLK]		The current thread already owns the mutex.

SEE ALSO

     pthread_mutex_destroy(3), pthread_mutex_init(3), pthread_mutex_lock(3), pthread_mutex_trylock(3), pthread_mutex_unlock(3)

STANDARDS

     The pthread_mutex_timedlock() function is expected to conform to ISO/IEC 9945-1:1996 (``POSIX.1'').

BSD
								 December 30, 2003							       BSD