Subversion Repositories openrisc_2011-10-31

/*

 *  COPYRIGHT (c) 1989-1999.

 *  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.OARcorp.com/rtems/license.html.

 *

 *  $Id: del_sem.c,v 1.2 2001-09-27 11:59:13 chris Exp $

 */

#include <itron.h>

#include <rtems/itron/semaphore.h>

#include <rtems/itron/task.h>

#include <rtems/score/tod.h>

/*

 *  del_sem - Delete Semaphore

 *

 *  This function implements the ITRON 3.0 del_sem() service.

 */

ER del_sem(

  ID semid

)

{

  ITRON_Semaphore_Control *the_semaphore;

  Objects_Locations        location;

  the_semaphore = _ITRON_Semaphore_Get( semid, &location );

  switch ( location ) {

    case OBJECTS_REMOTE:               /* Multiprocessing not supported */

    case OBJECTS_ERROR:

      return _ITRON_Semaphore_Clarify_get_id_error( semid );

    case OBJECTS_LOCAL:

      _CORE_semaphore_Flush(

        &the_semaphore->semaphore,

        NULL,                          /* Multiprocessing not supported */

        CORE_SEMAPHORE_WAS_DELETED

      );

      _ITRON_Objects_Close(

        &_ITRON_Semaphore_Information,

        &the_semaphore->Object

      );

      _ITRON_Semaphore_Free( the_semaphore );

  /*

   *  If multiprocessing were supported, this is where we would announce

   *  the destruction of the semaphore to the rest of the system.

   */

#if defined(RTEMS_MULTIPROCESSING)

#endif

    _Thread_Enable_dispatch();

    return E_OK;

  }

  return E_OK;

}