source: rtems/cpukit/rtems/src/regiongetinfo.c @ a29d2e7

4.104.114.84.95
Last change on this file since a29d2e7 was 1095ec1, checked in by Ralf Corsepius <ralf.corsepius@…>, on 01/18/05 at 09:03:45

Include config.h.

  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 *  Region Manager
3 *
4 *
5 *  COPYRIGHT (c) 1989-1999.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.com/license/LICENSE.
11 *
12 *  $Id$
13 */
14
15#if HAVE_CONFIG_H
16#include "config.h"
17#endif
18
19#include <rtems/system.h>
20#include <rtems/rtems/status.h>
21#include <rtems/rtems/support.h>
22#include <rtems/score/object.h>
23#include <rtems/rtems/options.h>
24#include <rtems/rtems/region.h>
25#include <rtems/score/states.h>
26#include <rtems/score/apimutex.h>
27#include <rtems/score/thread.h>
28
29/*PAGE
30 *
31 *  rtems_region_get_information
32 *
33 *  This directive will return information about the region specified.
34 *
35 *  Input parameters:
36 *    id         - region id
37 *    the_info   - pointer to region information block
38 *
39 *  Output parameters:
40 *    *the_info   - region information block filled in
41 *    RTEMS_SUCCESSFUL - if successful
42 *    error code - if unsuccessful
43 */
44
45rtems_status_code rtems_region_get_information(
46  Objects_Id              id,
47  Heap_Information_block *the_info
48)
49{
50  register Region_Control *the_region;
51  Objects_Locations        location;
52
53  if ( !the_info )
54    return RTEMS_INVALID_ADDRESS;
55
56  _RTEMS_Lock_allocator();
57  the_region = _Region_Get( id, &location );
58  switch ( location ) {
59    case OBJECTS_REMOTE:        /* this error cannot be returned */
60      _RTEMS_Unlock_allocator();
61      return RTEMS_INTERNAL_ERROR;
62
63    case OBJECTS_ERROR:
64      _RTEMS_Unlock_allocator();
65      return RTEMS_INVALID_ID;
66
67    case OBJECTS_LOCAL:
68
69      if ( _Heap_Get_information( &the_region->Memory, the_info ) ==
70           HEAP_GET_INFORMATION_SUCCESSFUL ) {
71        _RTEMS_Unlock_allocator();
72        return RTEMS_SUCCESSFUL;
73      }
74      _RTEMS_Unlock_allocator();
75      return RTEMS_INVALID_ADDRESS;
76  }
77
78  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */
79}
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