source: rtems/cpukit/rtems/src/semident.c @ 17bbadd

Last change on this file since 17bbadd was 17bbadd, checked in by Joel Sherrill <joel.sherrill@…>, on 05/06/04 at 19:20:04

2004-05-06 Joel Sherrill <joel@…>

PR 618/rtems

  • include/rtems/rtems/status.h, src/clockget.c, src/clockset.c, src/dpmemcreate.c, src/dpmemexternal2internal.c, src/dpmeminternal2external.c, src/eventmp.c, src/eventreceive.c, src/eventsend.c, src/msgqbroadcast.c, src/msgqcreate.c, src/msgqflush.c, src/msgqgetnumberpending.c, src/msgqreceive.c, src/msgqsubmit.c, src/partcreate.c, src/partdelete.c, src/partgetbuffer.c, src/ratemoncancel.c, src/ratemoncreate.c, src/ratemondelete.c, src/ratemongetstatus.c, src/ratemonident.c, src/ratemonperiod.c, src/regioncreate.c, src/regiondelete.c, src/regionextend.c, src/regiongetsegment.c, src/regiongetsegmentsize.c, src/regionreturnsegment.c, src/semcreate.c, src/semdelete.c, src/semflush.c, src/semident.c, src/taskcreate.c, src/taskgetnote.c, src/taskmode.c, src/taskrestart.c, src/taskresume.c, src/tasksetnote.c, src/tasksuspend.c, src/taskvariableadd.c, src/taskvariabledelete.c, src/taskvariableget.c, src/taskwakewhen.c, src/timercreate.c, src/timerdelete.c, src/timerfireafter.c, src/timerfirewhen.c, src/timerserverfireafter.c, src/timerserverfirewhen.c: Add NULL checks.
  • Property mode set to 100644
File size: 1.9 KB
Line 
1/*
2 *  Semaphore Manager
3 *
4 *  DESCRIPTION:
5 *
6 *  This package is the implementation of the Semaphore Manager.
7 *  This manager utilizes standard Dijkstra counting semaphores to provide
8 *  synchronization and mutual exclusion capabilities.
9 *
10 *  Directives provided are:
11 *
12 *     + create a semaphore
13 *     + get an ID of a semaphore
14 *     + delete a semaphore
15 *     + acquire a semaphore
16 *     + release a semaphore
17 *
18 *  COPYRIGHT (c) 1989-1999.
19 *  On-Line Applications Research Corporation (OAR).
20 *
21 *  The license and distribution terms for this file may be
22 *  found in the file LICENSE in this distribution or at
23 *  http://www.rtems.com/license/LICENSE.
24 *
25 *  $Id$
26 */
27
28#include <rtems/system.h>
29#include <rtems/rtems/status.h>
30#include <rtems/rtems/support.h>
31#include <rtems/rtems/attr.h>
32#include <rtems/score/isr.h>
33#include <rtems/score/object.h>
34#include <rtems/rtems/options.h>
35#include <rtems/rtems/sem.h>
36#include <rtems/score/coremutex.h>
37#include <rtems/score/coresem.h>
38#include <rtems/score/states.h>
39#include <rtems/score/thread.h>
40#include <rtems/score/threadq.h>
41#if defined(RTEMS_MULTIPROCESSING)
42#include <rtems/score/mpci.h>
43#endif
44#include <rtems/score/sysstate.h>
45
46#include <rtems/score/interr.h>
47
48/*PAGE
49 *
50 *  rtems_semaphore_ident
51 *
52 *  This directive returns the system ID associated with
53 *  the semaphore name.
54 *
55 *  Input parameters:
56 *    name - user defined semaphore name
57 *    node - node(s) to be searched
58 *    id   - pointer to semaphore id
59 *
60 *  Output parameters:
61 *    *id              - semaphore id
62 *    RTEMS_SUCCESSFUL - if successful
63 *    error code       - if unsuccessful
64 */
65
66rtems_status_code rtems_semaphore_ident(
67  rtems_name  name,
68  unsigned32  node,
69  Objects_Id *id
70)
71{
72  Objects_Name_to_id_errors  status;
73 
74  status = _Objects_Name_to_id(
75    &_Semaphore_Information,
76    (Objects_Name) name,
77    node,
78    id
79  );
80 
81  return _Status_Object_name_errors_to_status[ status ];
82}
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