source: rtems/testsuites/mptests/mp14/msgtask1.c @ 03f2154e

4.104.114.84.95
Last change on this file since 03f2154e was 03f2154e, checked in by Joel Sherrill <joel.sherrill@…>, on Apr 22, 1997 at 5:20:27 PM

headers updated to reflect new style copyright notice as part
of switching to the modified GNU GPL.

  • Property mode set to 100644
File size: 2.8 KB
Line 
1/*  Message_queue_task
2 *
3 *  This task continuously sends messages to and receives messages from
4 *  a global message queue.    The message buffer is viewed as an array
5 *  of two sixty-four bit counts which are incremented when a message is
6 *  received.
7 *
8 *  Input parameters:
9 *    argument - task argument
10 *
11 *  Output parameters:  NONE
12 *
13 *  COPYRIGHT (c) 1989-1997.
14 *  On-Line Applications Research Corporation (OAR).
15 *  Copyright assigned to U.S. Government, 1994.
16 *
17 *  The license and distribution terms for this file may in
18 *  the file LICENSE in this distribution or at
19 *  http://www.OARcorp.com/rtems/license.html.
20 *
21 *  $Id$
22 */
23
24#include "system.h"
25
26rtems_task Message_queue_task(
27  rtems_task_argument index
28)
29{
30  rtems_status_code  status;
31  rtems_unsigned32   count;
32  rtems_unsigned32   yield_count;
33  rtems_unsigned32  *buffer_count;
34  rtems_unsigned32  *overflow_count;
35  rtems_unsigned32   size;
36
37  Msg_buffer[ index ][0] = 0;
38  Msg_buffer[ index ][1] = 0;
39  Msg_buffer[ index ][2] = 0;
40  Msg_buffer[ index ][3] = 0;
41
42  puts( "Getting ID of msg queue" );
43  while ( FOREVER ) {
44    status = rtems_message_queue_ident(
45      Queue_name[ 1 ],
46      RTEMS_SEARCH_ALL_NODES,
47      &Queue_id[ 1 ]
48    );
49    if ( status == RTEMS_SUCCESSFUL )
50      break;
51    puts( "rtems_message_queue_ident FAILED!!" );
52    rtems_task_wake_after(2);
53  }
54
55  if ( Multiprocessing_configuration.node == 1 ) {
56      status = rtems_message_queue_send(
57        Queue_id[ 1 ],
58        (long (*)[4])Msg_buffer[ index ],
59        16
60      );
61      directive_failed( status, "rtems_message_queue_send" );
62      overflow_count = &Msg_buffer[ index ][0];
63      buffer_count   = &Msg_buffer[ index ][1];
64  } else {
65      overflow_count = &Msg_buffer[ index ][2];
66      buffer_count   = &Msg_buffer[ index ][3];
67  }
68
69  while ( Stop_Test == FALSE ) {
70    yield_count = 100;
71
72    for ( count=MESSAGE_DOT_COUNT ; Stop_Test == FALSE && count ; count-- ) {
73      status = rtems_message_queue_receive(
74        Queue_id[ 1 ],
75        (long (*)[4])Msg_buffer[ index ],
76        &size,
77        RTEMS_DEFAULT_OPTIONS,
78        RTEMS_NO_TIMEOUT
79      );
80      directive_failed( status, "rtems_message_queue_receive" );
81
82      if ( *buffer_count == (rtems_unsigned32)0xffffffff ) {
83        *buffer_count    = 0;
84        *overflow_count += 1;
85      } else
86        *buffer_count += 1;
87
88      status = rtems_message_queue_send(
89        Queue_id[ 1 ],
90        (long (*)[4])Msg_buffer[ index ],
91        16
92      );
93      directive_failed( status, "rtems_message_queue_send" );
94
95      if (Stop_Test == FALSE)
96        if ( Multiprocessing_configuration.node == 1 && --yield_count == 0 ) {
97          status = rtems_task_wake_after( RTEMS_YIELD_PROCESSOR );
98          directive_failed( status, "rtems_task_wake_after" );
99
100          yield_count = 100;
101        }
102    }
103    put_dot( 'm' );
104  }
105
106  Exit_test();
107}
Note: See TracBrowser for help on using the repository browser.