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/**
* @file
*
* @brief Support Call to function Enables Locking of Mutex Object
* @ingroup POSIXAPI
*/
/*
* COPYRIGHT (c) 1989-2014.
* 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 <errno.h>
#include <pthread.h>
#include <rtems/system.h>
#include <rtems/score/coremuteximpl.h>
#include <rtems/score/watchdog.h>
#include <rtems/posix/muteximpl.h>
#include <rtems/posix/priorityimpl.h>
#include <rtems/posix/time.h>
/*
* _POSIX_Mutex_Lock_support
*
* A support routine which implements guts of the blocking, non-blocking, and
* timed wait version of mutex lock.
*/
int _POSIX_Mutex_Lock_support(
pthread_mutex_t *mutex,
bool blocking,
Watchdog_Interval timeout
)
{
POSIX_Mutex_Control *the_mutex;
Objects_Locations location;
ISR_Level level;
Thread_Control *executing;
the_mutex = _POSIX_Mutex_Get_interrupt_disable( mutex, &location, &level );
switch ( location ) {
case OBJECTS_LOCAL:
executing = _Thread_Executing;
_CORE_mutex_Seize(
&the_mutex->Mutex,
executing,
the_mutex->Object.id,
blocking,
timeout,
level
);
_Objects_Put_for_get_isr_disable( &the_mutex->Object );
return _POSIX_Mutex_Translate_core_mutex_return_code(
(CORE_mutex_Status) executing->Wait.return_code
);
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
return EINVAL;
}
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