source: rtems/cpukit/rtems/src/msgqurgent.c @ 0e87deaa

4.104.114.95
Last change on this file since 0e87deaa was 0e87deaa, checked in by Joel Sherrill <joel.sherrill@…>, on 10/26/07 at 20:19:02

2007-10-26 Joel Sherrill <joel.sherrill@…>

  • itron/src/can_wup.c, itron/src/chg_pri.c, itron/src/del_mbf.c, itron/src/del_mbx.c, itron/src/del_sem.c, itron/src/del_tsk.c, itron/src/frsm_tsk.c, itron/src/ref_mbf.c, itron/src/ref_mbx.c, itron/src/ref_sem.c, itron/src/ref_tsk.c, itron/src/rel_wai.c, itron/src/rsm_tsk.c, itron/src/sig_sem.c, itron/src/snd_mbx.c, itron/src/sta_tsk.c, itron/src/sus_tsk.c, itron/src/ter_tsk.c, itron/src/trcv_mbf.c, itron/src/trcv_mbx.c, itron/src/tsnd_mbf.c, itron/src/twai_sem.c, posix/src/cancel.c, posix/src/conddestroy.c, posix/src/condinit.c, posix/src/condsignalsupp.c, posix/src/condwaitsupp.c, posix/src/keydelete.c, posix/src/keygetspecific.c, posix/src/keysetspecific.c, posix/src/mqueueclose.c, posix/src/mqueuegetattr.c, posix/src/mqueuenotify.c, posix/src/mqueuerecvsupp.c, posix/src/mqueuesendsupp.c, posix/src/mqueuesetattr.c, posix/src/mutexdestroy.c, posix/src/mutexgetprioceiling.c, posix/src/mutexinit.c, posix/src/mutexlocksupp.c, posix/src/mutexsetprioceiling.c, posix/src/mutexunlock.c, posix/src/pbarrierdestroy.c, posix/src/pbarrierwait.c, posix/src/prwlockdestroy.c, posix/src/prwlockrdlock.c, posix/src/prwlocktimedrdlock.c, posix/src/prwlocktimedwrlock.c, posix/src/prwlocktryrdlock.c, posix/src/prwlocktrywrlock.c, posix/src/prwlockunlock.c, posix/src/prwlockwrlock.c, posix/src/pspindestroy.c, posix/src/pspinlock.c, posix/src/pspintrylock.c, posix/src/pspinunlock.c, posix/src/pthreaddetach.c, posix/src/pthreadequal.c, posix/src/pthreadgetschedparam.c, posix/src/pthreadjoin.c, posix/src/pthreadkill.c, posix/src/pthreadsetschedparam.c, posix/src/ptimer1.c, posix/src/semaphorewaitsupp.c, posix/src/semclose.c, posix/src/semdestroy.c, posix/src/semgetvalue.c, posix/src/sempost.c, posix/src/types.c, rtems/src/barrierdelete.c, rtems/src/barrierrelease.c, rtems/src/barrierwait.c, rtems/src/dpmemdelete.c, rtems/src/dpmemexternal2internal.c, rtems/src/dpmeminternal2external.c, rtems/src/eventsend.c, rtems/src/eventtimeout.c, rtems/src/msgqbroadcast.c, rtems/src/msgqdelete.c, rtems/src/msgqflush.c, rtems/src/msgqgetnumberpending.c, rtems/src/msgqreceive.c, rtems/src/msgqsend.c, rtems/src/msgqurgent.c, rtems/src/partdelete.c, rtems/src/partgetbuffer.c, rtems/src/partreturnbuffer.c, rtems/src/ratemoncancel.c, rtems/src/ratemondelete.c, rtems/src/ratemongetstatistics.c, rtems/src/ratemongetstatus.c, rtems/src/ratemonperiod.c, rtems/src/ratemonresetstatistics.c, rtems/src/ratemontimeout.c, rtems/src/regiondelete.c, rtems/src/regionextend.c, rtems/src/regiongetfreeinfo.c, rtems/src/regiongetinfo.c, rtems/src/regiongetsegment.c, rtems/src/regiongetsegmentsize.c, rtems/src/regionresizesegment.c, rtems/src/regionreturnsegment.c, rtems/src/semdelete.c, rtems/src/semflush.c, rtems/src/semobtain.c, rtems/src/semrelease.c, rtems/src/signalsend.c, rtems/src/taskdelete.c, rtems/src/taskgetnote.c, rtems/src/taskissuspended.c, rtems/src/taskrestart.c, rtems/src/taskresume.c, rtems/src/tasksetnote.c, rtems/src/tasksetpriority.c, rtems/src/taskstart.c, rtems/src/tasksuspend.c, rtems/src/taskvariableadd.c, rtems/src/taskvariabledelete.c, rtems/src/taskvariableget.c, rtems/src/timercancel.c, rtems/src/timerdelete.c, rtems/src/timerfireafter.c, rtems/src/timerfirewhen.c, rtems/src/timergetinfo.c, rtems/src/timerreset.c, rtems/src/timerserverfireafter.c, rtems/src/timerserverfirewhen.c, sapi/src/extensiondelete.c, score/include/rtems/score/object.h, score/src/corerwlocktimeout.c, score/src/mpci.c, score/src/objectgetnameasstring.c, score/src/threaddelayended.c, score/src/threadqtimeout.c: When multiprocessing is disabled, do not even allow the constant OBJECTS_REMOTE to appear in the source. Even at -O2, the presence of a case OBJECTS_REMOTE in each id->pointer _Objects_Get switch results in the generation of binary code which can NOT be reached.
  • Property mode set to 100644
File size: 2.8 KB
Line 
1/*
2 *  Message Queue Manager - rtems_message_queue_urgent
3 *
4 *  COPYRIGHT (c) 1989-2007.
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/system.h>
19#include <rtems/score/sysstate.h>
20#include <rtems/score/chain.h>
21#include <rtems/score/isr.h>
22#include <rtems/score/coremsg.h>
23#include <rtems/score/object.h>
24#include <rtems/score/states.h>
25#include <rtems/score/thread.h>
26#include <rtems/score/wkspace.h>
27#if defined(RTEMS_MULTIPROCESSING)
28#include <rtems/score/mpci.h>
29#endif
30#include <rtems/rtems/status.h>
31#include <rtems/rtems/attr.h>
32#include <rtems/rtems/message.h>
33#include <rtems/rtems/options.h>
34#include <rtems/rtems/support.h>
35
36/*PAGE
37 *
38 *  rtems_message_queue_urgent
39 *
40 *  This routine implements the directives rtems_message_queue_urgent.  It
41 *  prepends a message to the specified message queue.
42 *
43 *  Input parameters:
44 *    id     - pointer to message queue
45 *    buffer - pointer to message buffer
46 *    size   - size of message to sent urgently
47 *
48 *  Output parameters:
49 *    RTEMS_SUCCESSFUL - if successful
50 *    error code       - if unsuccessful
51 */
52
53#if defined(RTEMS_MULTIPROCESSING)
54#define MESSAGE_QUEUE_MP_HANDLER _Message_queue_Core_message_queue_mp_support
55#else
56#define MESSAGE_QUEUE_MP_HANDLER NULL
57#endif
58
59rtems_status_code rtems_message_queue_urgent(
60  Objects_Id            id,
61  void                 *buffer,
62  size_t                size
63)
64{
65  register Message_queue_Control  *the_message_queue;
66  Objects_Locations                location;
67  CORE_message_queue_Status        status;
68
69  if ( !buffer )
70    return RTEMS_INVALID_ADDRESS;
71
72  the_message_queue = _Message_queue_Get( id, &location );
73  switch ( location )
74  {
75#if defined(RTEMS_MULTIPROCESSING)
76    case OBJECTS_REMOTE:
77      return _Message_queue_MP_Send_request_packet(
78        MESSAGE_QUEUE_MP_URGENT_REQUEST,
79        id,
80        buffer,
81        &size,
82        0,                               /* option_set */
83        MPCI_DEFAULT_TIMEOUT
84      );
85#endif
86
87    case OBJECTS_ERROR:
88      return RTEMS_INVALID_ID;
89
90    case OBJECTS_LOCAL:
91      status = _CORE_message_queue_Urgent(
92        &the_message_queue->message_queue,
93        buffer,
94        size,
95        id,
96        MESSAGE_QUEUE_MP_HANDLER,
97        FALSE,   /* sender does not block */
98        0        /* no timeout */
99      );
100      _Thread_Enable_dispatch();
101
102      /*
103       *  Since this API does not allow for blocking sends, we can directly
104       *  return the returned status.
105       */
106
107      return _Message_queue_Translate_core_message_queue_return_code(status);
108
109  }
110  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */
111}
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