source: rtems/cpukit/itron/src/ref_mbx.c @ ebbe119e

4.104.114.84.95
Last change on this file since ebbe119e was ebbe119e, checked in by Ralf Corsepius <ralf.corsepius@…>, on 04/01/04 at 10:14:23

2004-04-01 Ralf Corsepius <ralf_corsepius@…>

  • libblock/include/rtems/bdbuf.h: Include <rtems/chain.h> instead of <chain.h>.
  • libblock/include/rtems/ide_part_table.h: Include <rtems/chain.h> instead of <chain.h>.
  • libcsupport/src/malloc.c: Include <rtems/chain.h> instead of <chain.h>.
  • libcsupport/src/mount.c: Include <rtems/chain.h> instead of <chain.h>.
  • libcsupport/src/unmount.c: Include <rtems/chain.h> instead of <chain.h>.
  • libfs/src/imfs/imfs.h: Include <rtems/chain.h> instead of <chain.h>.
  • libfs/src/imfs/imfs_directory.c: Include <rtems/chain.h> instead of <chain.h>.
  • libfs/src/imfs/imfs_load_tar.c: Include <rtems/chain.h> instead of <chain.h>.
  • sapi/include/confdefs.h: Include <rtems/clockdrv.h> instead of <clockdrv.h>.
  • sapi/include/confdefs.h: Include <rtems/console.h> instead of <console.h>.
  • libfs/src/imfs/imfs_load_tar.c: Include <rtems/imfs.h> instead of <imfs.h>.
  • libmisc/shell/cmds.c: Include <rtems/imfs.h> instead of <imfs.h>.
  • libmisc/fsmount/fsmount.c: Include <rtems/imfs.h> instead of <imfs.h>.
  • sapi/include/confdefs.h: Include <rtems/imfs.h> instead of <imfs.h>.
  • itron/src/can_wup.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/chg_pri.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/cre_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/cre_mbx.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/cre_sem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/cre_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/del_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/del_mbx.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/del_sem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/del_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/dis_dsp.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/ena_dsp.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/eventflags.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/exd_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/ext_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/fmempool.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/frsm_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/get_tid.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/itronintr.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/itronsem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/itrontime.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/mbox.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/mboxtranslatereturncode.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/msgbuffer.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/msgbuffertranslatereturncode.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/network.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/port.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/prcv_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/prcv_mbx.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/preq_sem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/psnd_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/rcv_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/rcv_mbx.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/ref_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/ref_mbx.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/ref_sem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/ref_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/rel_wai.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/rot_rdq.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/rsm_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/sig_sem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/slp_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/snd_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/snd_mbx.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/sta_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/sus_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/sysmgmt.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/task.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/ter_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/trcv_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/trcv_mbx.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/tslp_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/tsnd_mbf.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/twai_sem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/vmempool.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/wai_sem.c: Include <rtems/itron.h> instead of <itron.h>.
  • itron/src/wup_tsk.c: Include <rtems/itron.h> instead of <itron.h>.
  • sapi/include/rtems/config.h: Include <rtems/itron.h> instead of <itron.h>.
  • sapi/include/confdefs.h: Include <rtems/itron.h> instead of <itron.h>.
  • sapi/src/itronapi.c: Include <rtems/itron.h> instead of <itron.h>.
  • sapi/include/confdefs.h: Include <rtems/rtc.h> instead of <rtc.h>.
  • sapi/include/confdefs.h: Include <rtems/timerdrv.h> instead of <timerdrv.h>.
  • Property mode set to 100644
File size: 1.4 KB
Line 
1/*
2 *  ITRON 3.0 Mailbox Manager
3 *
4 *  COPYRIGHT (c) 1989-1999.
5 *  On-Line Applications Research Corporation (OAR).
6 *
7 *  The license and distribution terms for this file may be
8 *  found in the file LICENSE in this distribution or at
9 *  http://www.rtems.com/license/LICENSE.
10 *
11 *  $Id$
12 */
13
14#if HAVE_CONFIG_H
15#include "config.h"
16#endif
17
18#include <rtems/itron.h>
19
20#include <rtems/itron/mbox.h>
21#include <rtems/itron/task.h>
22
23/*
24 *  ref_mbx - Reference Mailbox Status
25 */
26
27ER ref_mbx(
28  T_RMBX *pk_rmbx,
29  ID      mbxid
30)
31{
32  register ITRON_Mailbox_Control *the_mailbox;
33  Objects_Locations               location;
34  Chain_Control                  *pending;
35
36  if ( !pk_rmbx )
37    return E_PAR;
38
39  the_mailbox = _ITRON_Mailbox_Get( mbxid, &location );
40  switch ( location ) {
41    case OBJECTS_REMOTE:
42    case OBJECTS_ERROR:
43      return _ITRON_Mailbox_Clarify_get_id_error( mbxid );
44
45    case OBJECTS_LOCAL:
46
47      pending = &the_mailbox->message_queue.Pending_messages;
48      if ( _Chain_Is_empty( pending ) )
49        pk_rmbx->pk_msg = NULL;
50      else
51        pk_rmbx->pk_msg = (T_MSG *) pending->first;
52
53      /*
54       *  Fill in whether or not there is a waiting task
55       */
56
57      if ( !_Thread_queue_First( &the_mailbox->message_queue.Wait_queue ) )
58        pk_rmbx->wtsk = FALSE;
59      else
60        pk_rmbx->wtsk = TRUE;
61
62      break;
63  }
64  _ITRON_return_errorno( E_OK );
65}
66
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