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/**
* @file
*
* @brief Try to Lock Mutex
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/posix/muteximpl.h>
/**
* 11.3.3 Locking and Unlocking a Mutex, P1003.1c/Draft 10, p. 93
*
* NOTE: P1003.4b/D8 adds pthread_mutex_timedlock(), p. 29
*/
int pthread_mutex_trylock(
pthread_mutex_t *mutex
)
{
int eno;
eno = _POSIX_Mutex_Lock_support(
mutex,
(const struct timespec *) POSIX_MUTEX_ABSTIME_TRY_LOCK,
NULL
);
if ( eno == EDEADLK ) {
eno = EBUSY;
}
return eno;
}
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