source: rtems/cpukit/rtems/src/semflush.c @ 277cc95

4.104.114.84.95
Last change on this file since 277cc95 was 277cc95, checked in by Joel Sherrill <joel.sherrill@…>, on 09/04/03 at 18:54:32

2003-09-04 Joel Sherrill <joel@…>

  • include/rtems.h, include/rtems/rtems/asr.h, include/rtems/rtems/attr.h, include/rtems/rtems/cache.h, include/rtems/rtems/clock.h, include/rtems/rtems/config.h, include/rtems/rtems/dpmem.h, include/rtems/rtems/event.h, include/rtems/rtems/eventmp.h, include/rtems/rtems/eventset.h, include/rtems/rtems/intr.h, include/rtems/rtems/message.h, include/rtems/rtems/modes.h, include/rtems/rtems/mp.h, include/rtems/rtems/msgmp.h, include/rtems/rtems/options.h, include/rtems/rtems/part.h, include/rtems/rtems/partmp.h, include/rtems/rtems/ratemon.h, include/rtems/rtems/region.h, include/rtems/rtems/regionmp.h, include/rtems/rtems/rtemsapi.h, include/rtems/rtems/sem.h, include/rtems/rtems/semmp.h, include/rtems/rtems/signal.h, include/rtems/rtems/signalmp.h, include/rtems/rtems/status.h, include/rtems/rtems/support.h, include/rtems/rtems/taskmp.h, include/rtems/rtems/tasks.h, include/rtems/rtems/timer.h, include/rtems/rtems/types.h, inline/rtems/rtems/asr.inl, inline/rtems/rtems/attr.inl, inline/rtems/rtems/dpmem.inl, inline/rtems/rtems/event.inl, inline/rtems/rtems/eventset.inl, inline/rtems/rtems/message.inl, inline/rtems/rtems/modes.inl, inline/rtems/rtems/options.inl, inline/rtems/rtems/part.inl, inline/rtems/rtems/ratemon.inl, inline/rtems/rtems/region.inl, inline/rtems/rtems/sem.inl, inline/rtems/rtems/status.inl, inline/rtems/rtems/support.inl, inline/rtems/rtems/tasks.inl, inline/rtems/rtems/timer.inl, macros/rtems/rtems/asr.inl, macros/rtems/rtems/attr.inl, macros/rtems/rtems/dpmem.inl, macros/rtems/rtems/event.inl, macros/rtems/rtems/eventset.inl, macros/rtems/rtems/message.inl, macros/rtems/rtems/modes.inl, macros/rtems/rtems/options.inl, macros/rtems/rtems/part.inl, macros/rtems/rtems/ratemon.inl, macros/rtems/rtems/region.inl, macros/rtems/rtems/sem.inl, macros/rtems/rtems/status.inl, macros/rtems/rtems/support.inl, macros/rtems/rtems/tasks.inl, macros/rtems/rtems/timer.inl, src/attr.c, src/clockget.c, src/clockset.c, src/clocktick.c, src/dpmem.c, src/dpmemcreate.c, src/dpmemdelete.c, src/dpmemexternal2internal.c, src/dpmemident.c, src/dpmeminternal2external.c, src/event.c, src/eventmp.c, src/eventreceive.c, src/eventseize.c, src/eventsend.c, src/eventsurrender.c, src/eventtimeout.c, src/intr.c, src/intrbody.c, src/intrcatch.c, src/mp.c, src/msg.c, src/msgmp.c, src/msgqallocate.c, src/msgqbroadcast.c, src/msgqcreate.c, src/msgqdelete.c, src/msgqflush.c, src/msgqgetnumberpending.c, src/msgqident.c, src/msgqreceive.c, src/msgqsend.c, src/msgqsubmit.c, src/msgqtranslatereturncode.c, src/msgqurgent.c, src/part.c, src/partcreate.c, src/partdelete.c, src/partgetbuffer.c, src/partident.c, src/partmp.c, src/partreturnbuffer.c, src/ratemon.c, src/ratemoncancel.c, src/ratemoncreate.c, src/ratemondelete.c, src/ratemongetstatus.c, src/ratemonident.c, src/ratemonperiod.c, src/ratemontimeout.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/regionmp.c, src/regionreturnsegment.c, src/rtclock.c, src/rtemsidtoname.c, src/rtemstimer.c, src/sem.c, src/semcreate.c, src/semdelete.c, src/semflush.c, src/semident.c, src/semmp.c, src/semobtain.c, src/semrelease.c, src/semtranslatereturncode.c, src/signal.c, src/signalcatch.c, src/signalmp.c, src/signalsend.c, src/taskcreate.c, src/taskdelete.c, src/taskgetnote.c, src/taskident.c, src/taskinitusers.c, src/taskissuspended.c, src/taskmode.c, src/taskmp.c, src/taskrestart.c, src/taskresume.c, src/tasks.c, src/tasksetnote.c, src/tasksetpriority.c, src/taskstart.c, src/tasksuspend.c, src/taskvariableadd.c, src/taskvariabledelete.c, src/taskvariableget.c, src/taskwakeafter.c, src/taskwakewhen.c, src/timercancel.c, src/timercreate.c, src/timerdelete.c, src/timerfireafter.c, src/timerfirewhen.c, src/timergetinfo.c, src/timerident.c, src/timerreset.c, src/timerserver.c, src/timerserverfireafter.c, src/timerserverfirewhen.c: URL for license changed.
  • Property mode set to 100644
File size: 2.4 KB
Line 
1/*
2 *  rtems_semaphore_flush
3 *
4 *  DESCRIPTION:
5 *
6 *  This package is the implementation of the flush directive
7 *  of the Semaphore Manager.
8 *
9 *  COPYRIGHT (c) 1989-1999.
10 *  On-Line Applications Research Corporation (OAR).
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.com/license/LICENSE.
15 *
16 *  $Id$
17 */
18
19#include <rtems/system.h>
20#include <rtems/rtems/status.h>
21#include <rtems/rtems/support.h>
22#include <rtems/rtems/attr.h>
23#include <rtems/score/isr.h>
24#include <rtems/score/object.h>
25#include <rtems/rtems/options.h>
26#include <rtems/rtems/sem.h>
27#include <rtems/score/coremutex.h>
28#include <rtems/score/coresem.h>
29#include <rtems/score/states.h>
30#include <rtems/score/thread.h>
31#include <rtems/score/threadq.h>
32#if defined(RTEMS_MULTIPROCESSING)
33#include <rtems/score/mpci.h>
34#endif
35#include <rtems/score/sysstate.h>
36
37#include <rtems/score/interr.h>
38
39/*PAGE
40 *
41 *  rtems_semaphore_flush
42 *
43 *  This directive allows a thread to flush the threads
44 *  pending on the semaphore.
45 *
46 *  Input parameters:
47 *    id         - semaphore id
48 *
49 *  Output parameters:
50 *    RTEMS_SUCCESSFUL - if successful
51 *    error code        - if unsuccessful
52 */
53
54#if defined(RTEMS_MULTIPROCESSING)
55#define SEND_OBJECT_WAS_DELETED _Semaphore_MP_Send_object_was_deleted
56#else
57#define SEND_OBJECT_WAS_DELETED NULL
58#endif
59
60rtems_status_code rtems_semaphore_flush(
61  Objects_Id      id
62)
63{
64  register Semaphore_Control *the_semaphore;
65  Objects_Locations           location;
66
67  the_semaphore = _Semaphore_Get( id, &location );
68  switch ( location ) {
69
70    case OBJECTS_REMOTE:
71#if defined(RTEMS_MULTIPROCESSING)
72      _Thread_Dispatch();
73      return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
74#endif
75
76    case OBJECTS_ERROR:
77      return RTEMS_INVALID_ID;
78
79    case OBJECTS_LOCAL:
80      if ( !_Attributes_Is_counting_semaphore(the_semaphore->attribute_set) ) {
81        _CORE_mutex_Flush(
82          &the_semaphore->Core_control.mutex,
83          SEND_OBJECT_WAS_DELETED,
84          CORE_MUTEX_STATUS_UNSATISFIED_NOWAIT
85        );
86      } else {
87        _CORE_semaphore_Flush(
88          &the_semaphore->Core_control.semaphore,
89          SEND_OBJECT_WAS_DELETED,
90          CORE_SEMAPHORE_STATUS_UNSATISFIED_NOWAIT
91        );
92      }
93      _Thread_Enable_dispatch();
94      return RTEMS_SUCCESSFUL;
95  }
96
97  return RTEMS_INTERNAL_ERROR;   /* unreached - only to remove warnings */
98}
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