source: rtems/cpukit/rtems/src/regionident.c @ 90015e7f

4.104.114.84.9
Last change on this file since 90015e7f was 90015e7f, checked in by Joel Sherrill <joel.sherrill@…>, on Jul 1, 2002 at 10:32:31 PM

2002-07-01 Joel Sherrill <joel@…>

  • Mega patch merge to change the format of the object IDs to loosen the dependency between the SCORE and the various APIs. There was considerable work to simplify the object name management and it appears that the name_table field is no longer needed. This patch also includes the addition of the internal mutex which is currently only used to protect some types of allocation and deallocation. This significantly can reduce context switch latency under certain circumstances. In particular, some heap/region operations were O(n) and had dispatching disabled. This should help enormously. With this merge, the patch is not as clean as it should be. In particular, the documentation has not been modified to reflect the new object ID layout, the IDs in the test screens are not updated, and _Objects_Get_information needs to be a real routine not inlined. As part of this patch a lot of MP code for thread/proxy blocking was made conditional and cleaned up.
  • include/rtems.h, inline/rtems/rtems/region.inl, macros/rtems/rtems/region.inl, src/dpmem.c, src/dpmemcreate.c, src/msg.c, src/msgqcreate.c, src/part.c, src/partcreate.c, src/ratemon.c, src/ratemoncreate.c, src/region.c, src/regioncreate.c, src/regiondelete.c, src/regionextend.c, src/regiongetinfo.c, src/regiongetsegment.c, src/regiongetsegmentsize.c, src/regionident.c, src/regionreturnsegment.c, src/rtemstimer.c, src/sem.c, src/semcreate.c, src/taskcreate.c, src/taskident.c, src/tasks.c, src/timercreate.c: Modified as part of above.
  • Property mode set to 100644
File size: 1.2 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.OARcorp.com/rtems/license.html.
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_ident
28 *
29 *  This directive returns the system ID associated with
30 *  the region name.
31 *
32 *  Input parameters:
33 *    name - user defined region name
34 *    id   - pointer to region id
35 *
36 *  Output parameters:
37 *    *id      - region id
38 *    RTEMS_SUCCESSFUL - if successful
39 *    error code - if unsuccessful
40 */
41
42rtems_status_code rtems_region_ident(
43  rtems_name    name,
44  Objects_Id   *id
45)
46{
47  Objects_Name_to_id_errors  status;
48
49  status = _Objects_Name_to_id(
50    &_Region_Information,
51    &name,
52    OBJECTS_SEARCH_LOCAL_NODE,
53    id
54  );
55
56  return _Status_Object_name_errors_to_status[ status ];
57}
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