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/*
* Region Manager
*
*
* 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/score/object.h>
#include <rtems/rtems/options.h>
#include <rtems/rtems/region.h>
#include <rtems/score/states.h>
#include <rtems/score/thread.h>
#include <rtems/score/apimutex.h>
/*
* rtems_region_delete
*
* This directive allows a thread to delete a region specified by
* the region identifier, provided that none of its segments are
* still allocated.
*
* Input parameters:
* id - region id
*
* Output parameters:
* RTEMS_SUCCESSFUL - if successful
* error code - if unsuccessful
*/
rtems_status_code rtems_region_delete(
rtems_id id
)
{
Objects_Locations location;
rtems_status_code return_status;
Region_Control *the_region;
_RTEMS_Lock_allocator();
the_region = _Region_Get( id, &location );
switch ( location ) {
case OBJECTS_LOCAL:
_Region_Debug_Walk( the_region, 5 );
if ( the_region->number_of_used_blocks != 0 )
return_status = RTEMS_RESOURCE_IN_USE;
else {
_Objects_Close( &_Region_Information, &the_region->Object );
_Region_Free( the_region );
return_status = RTEMS_SUCCESSFUL;
}
break;
#if defined(RTEMS_MULTIPROCESSING)
case OBJECTS_REMOTE: /* this error cannot be returned */
break;
#endif
case OBJECTS_ERROR:
default:
return_status = RTEMS_INVALID_ID;
break;
}
_RTEMS_Unlock_allocator();
return return_status;
}
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