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/**
* @file
*
* @brief RTEMS Barrier Release
* @ingroup ClassicBarrier Barriers
*/
/*
* 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.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/rtems/barrierimpl.h>
#include <rtems/score/thread.h>
/*
* rtems_barrier_release
*
* This directive releases all threads waiting at a barrier.
*
* Input parameters:
* id - barrier id
* released - pointer to number of threads unblocked
*
* Output parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
* *released - number of threads unblocked
*/
rtems_status_code rtems_barrier_release(
rtems_id id,
uint32_t *released
)
{
Barrier_Control *the_barrier;
Objects_Locations location;
if ( !released )
return RTEMS_INVALID_ADDRESS;
the_barrier = _Barrier_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
*released = _CORE_barrier_Release( &the_barrier->Barrier, id, NULL );
_Objects_Put( &the_barrier->Object );
return RTEMS_SUCCESSFUL;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE:
#endif
case OBJECTS_ERROR:
break;
}
return RTEMS_INVALID_ID;
}
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