source: rtems/cpukit/score/src/coremsgflush.c @ fa6b0f5

4.104.114.84.95
Last change on this file since fa6b0f5 was a8eed23, checked in by Ralf Corsepius <ralf.corsepius@…>, on 01/27/05 at 05:57:05

Include config.h.

  • Property mode set to 100644
File size: 1.4 KB
Line 
1/*
2 *  CORE Message Queue Handler
3 *
4 *  DESCRIPTION:
5 *
6 *  This package is the implementation of the CORE Message Queue Handler.
7 *  This core object provides task synchronization and communication functions
8 *  via messages passed to queue objects.
9 *
10 *  COPYRIGHT (c) 1989-1999.
11 *  On-Line Applications Research Corporation (OAR).
12 *
13 *  The license and distribution terms for this file may be
14 *  found in the file LICENSE in this distribution or at
15 *  http://www.rtems.com/license/LICENSE.
16 *
17 *  $Id$
18 */
19
20#if HAVE_CONFIG_H
21#include "config.h"
22#endif
23
24#include <rtems/system.h>
25#include <rtems/score/chain.h>
26#include <rtems/score/isr.h>
27#include <rtems/score/object.h>
28#include <rtems/score/coremsg.h>
29#include <rtems/score/states.h>
30#include <rtems/score/thread.h>
31#include <rtems/score/wkspace.h>
32#if defined(RTEMS_MULTIPROCESSING)
33#include <rtems/score/mpci.h>
34#endif
35
36/*PAGE
37 *
38 *  _CORE_message_queue_Flush
39 *
40 *  This function flushes the message_queue's pending message queue.  The
41 *  number of messages flushed from the queue is returned.
42 *
43 *  Input parameters:
44 *    the_message_queue - the message_queue to be flushed
45 *
46 *  Output parameters:
47 *    returns - the number of messages flushed from the queue
48 */
49
50uint32_t   _CORE_message_queue_Flush(
51  CORE_message_queue_Control *the_message_queue
52)
53{
54  if ( the_message_queue->number_of_pending_messages != 0 )
55    return _CORE_message_queue_Flush_support( the_message_queue );
56  else
57    return 0;
58}
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