source: rtems/cpukit/itron/src/sig_sem.c @ fb27af76

4.104.114.84.95
Last change on this file since fb27af76 was fb27af76, checked in by Joel Sherrill <joel.sherrill@…>, on 11/15/99 at 16:39:01

Split ITRON semaphore manager into multiple files.

  • Property mode set to 100644
File size: 1.2 KB
Line 
1/*
2 *  The license and distribution terms for this file may be
3 *  found in the file LICENSE in this distribution or at
4 *  http://www.OARcorp.com/rtems/license.html.
5 *
6 *  $Id$
7 */
8
9#include <itron.h>
10
11#include <rtems/itron/semaphore.h>
12#include <rtems/itron/task.h>
13#include <rtems/score/tod.h>
14
15/*
16 *  sig_sem - Signal Semaphore
17 *
18 *  This function implements the ITRON 3.0 sig_sem() service.
19 */
20
21ER sig_sem(
22  ID semid
23)
24{
25  ITRON_Semaphore_Control *the_semaphore;
26  Objects_Locations        location;
27  CORE_semaphore_Status    status;
28
29  the_semaphore = _ITRON_Semaphore_Get( semid, &location );
30  switch ( location ) {
31    case OBJECTS_REMOTE:               /* Multiprocessing not supported */
32    case OBJECTS_ERROR:
33      return _ITRON_Semaphore_Clarify_get_id_error( semid );
34
35    case OBJECTS_LOCAL:
36      /*
37       *  XXX maxsemcnt
38       */
39
40      status = _CORE_semaphore_Surrender(
41        &the_semaphore->semaphore,
42        the_semaphore->Object.id,
43        NULL                       /* Multiprocessing not supported */
44      );
45      _Thread_Enable_dispatch();
46      return _ITRON_Semaphore_Translate_core_semaphore_return_code( status );
47  }
48  return E_OK;
49}
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