path: root/cpukit/rtems/src/barrierwait.c

/**
 *  @file
 *
 *  @brief RTEMS Barrier Wait
 *  @ingroup ClassicBarrier
 */

/*
 *  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/system.h>
#include <rtems/rtems/status.h>
#include <rtems/rtems/support.h>
#include <rtems/rtems/barrierimpl.h>
#include <rtems/score/threadimpl.h>

THREAD_WAIT_QUEUE_OBJECT_ASSERT( Barrier_Control, Barrier.Wait_queue );

rtems_status_code rtems_barrier_wait(
  rtems_id        id,
  rtems_interval  timeout
)
{
  Barrier_Control   *the_barrier;
  Objects_Locations  location;
  Thread_Control    *executing;

  the_barrier = _Barrier_Get( id, &location );
  switch ( location ) {

    case OBJECTS_LOCAL:
      executing = _Thread_Executing;
      _CORE_barrier_Wait(
        &the_barrier->Barrier,
        executing,
        true,
        timeout,
        NULL,
        0
      );
      _Objects_Put( &the_barrier->Object );
      return _Barrier_Translate_core_barrier_return_code(
                executing->Wait.return_code );

#if defined(RTEMS_MULTIPROCESSING)
    case OBJECTS_REMOTE:
#endif
    case OBJECTS_ERROR:
      break;
  }

  return RTEMS_INVALID_ID;
}