Subversion Repositories openrisc_2011-10-31

/*

 *  Partition Manager

 *

 *

 *  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: partdelete.c,v 1.2 2001-09-27 11:59:19 chris Exp $

 */

#include <rtems/system.h>

#include <rtems/rtems/status.h>

#include <rtems/rtems/support.h>

#include <rtems/score/address.h>

#include <rtems/score/object.h>

#include <rtems/rtems/part.h>

#include <rtems/score/thread.h>

#include <rtems/score/sysstate.h>

/*PAGE

 *

 *  rtems_partition_delete

 *

 *  This directive allows a thread to delete a partition specified by

 *  the partition identifier, provided that none of its buffers are

 *  still allocated.

 *

 *  Input parameters:

 *    id - partition id

 *

 *  Output parameters:

 *    RTEMS_SUCCESSFUL - if successful

 *    error code        - if unsuccessful

 */

rtems_status_code rtems_partition_delete(

  Objects_Id id

)

{

  register Partition_Control *the_partition;

  Objects_Locations                  location;

  the_partition = _Partition_Get( id, &location );

  switch ( location ) {

    case OBJECTS_REMOTE:

#if defined(RTEMS_MULTIPROCESSING)

      _Thread_Dispatch();

      return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;

#endif

    case OBJECTS_ERROR:

      return RTEMS_INVALID_ID;

    case OBJECTS_LOCAL:

      if ( the_partition->number_of_used_blocks == 0 ) {

        _Objects_Close( &_Partition_Information, &the_partition->Object );

        _Partition_Free( the_partition );

#if defined(RTEMS_MULTIPROCESSING)

        if ( _Attributes_Is_global( the_partition->attribute_set ) ) {

          _Objects_MP_Close(

            &_Partition_Information,

            the_partition->Object.id

          );

          _Partition_MP_Send_process_packet(

            PARTITION_MP_ANNOUNCE_DELETE,

            the_partition->Object.id,

            0,                         /* Not used */

          );

        }

#endif

        _Thread_Enable_dispatch();

        return RTEMS_SUCCESSFUL;

      }

      _Thread_Enable_dispatch();

      return RTEMS_RESOURCE_IN_USE;

  }

  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */

}