source: rtems/cpukit/rtems/src/regiongetsegmentsize.c @ 6cd05d2

4.104.114.84.95
Last change on this file since 6cd05d2 was 6cd05d2, checked in by Ralf Corsepius <ralf.corsepius@…>, on Mar 30, 2004 at 3:23:50 PM

2004-03-30 Ralf Corsepius <ralf_corsepius@…>

  • rtems/include/rtems/rtems/region.h: Include stddef.h for size_t. (rtems_region_get_segment_size): Use size_t instead of uint32_t for "size" (3rd arg).
  • rtems/src/regiongetsegmentsize.c: Reflect changes above.
  • libcsupport/src/malloc.c: Reflect changes above.
  • 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#include <rtems/system.h>
16#include <rtems/rtems/status.h>
17#include <rtems/rtems/support.h>
18#include <rtems/score/object.h>
19#include <rtems/rtems/options.h>
20#include <rtems/rtems/region.h>
21#include <rtems/score/states.h>
22#include <rtems/score/thread.h>
23#include <rtems/score/apimutex.h>
24
25/*PAGE
26 *
27 *  rtems_region_get_segment_size
28 *
29 *  This directive will return the size of the segment indicated
30 *
31 *  Input parameters:
32 *    id         - region id
33 *    segment    - segment address
34 *    size       - pointer to segment size in bytes
35 *
36 *  Output parameters:
37 *    size       - segment size in bytes filled in
38 *    RTEMS_SUCCESSFUL - if successful
39 *    error code - if unsuccessful
40 */
41
42rtems_status_code rtems_region_get_segment_size(
43  Objects_Id         id,
44  void              *segment,
45  size_t            *size
46)
47{
48  register Region_Control *the_region;
49  Objects_Locations        location;
50  Thread_Control          *executing;
51
52  _RTEMS_Lock_allocator();
53  executing  = _Thread_Executing;
54  the_region = _Region_Get( id, &location );
55  switch ( location ) {
56    case OBJECTS_REMOTE:        /* this error cannot be returned */
57      _RTEMS_Unlock_allocator();
58      return RTEMS_INTERNAL_ERROR;
59
60    case OBJECTS_ERROR:
61      _RTEMS_Unlock_allocator();
62      return RTEMS_INVALID_ID;
63
64    case OBJECTS_LOCAL:
65
66      if ( _Heap_Size_of_user_area( &the_region->Memory, segment, size ) ) {
67        _RTEMS_Unlock_allocator();
68        return RTEMS_SUCCESSFUL;
69      }
70      _RTEMS_Unlock_allocator();
71      return RTEMS_INVALID_ADDRESS;
72  }
73
74  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */
75}
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