source: rtems/testsuites/tmtests/tm13/task1.c @ c499856

4.11
Last change on this file since c499856 was c499856, checked in by Chris Johns <chrisj@…>, on Mar 20, 2014 at 9:10:47 PM

Change all references of rtems.com to rtems.org.

  • Property mode set to 100644
File size: 3.5 KB
Line 
1/*
2 *  COPYRIGHT (c) 1989-2013.
3 *  On-Line Applications Research Corporation (OAR).
4 *
5 *  The license and distribution terms for this file may be
6 *  found in the file LICENSE in this distribution or at
7 *  http://www.rtems.org/license/LICENSE.
8 */
9
10#ifdef HAVE_CONFIG_H
11#include "config.h"
12#endif
13
14#define CONFIGURE_INIT
15#include "system.h"
16
17rtems_id Queue_id;
18
19long Buffer[4];
20
21rtems_task test_init(
22  rtems_task_argument argument
23);
24
25rtems_task Middle_tasks(
26  rtems_task_argument argument
27);
28
29rtems_task High_task(
30  rtems_task_argument argument
31);
32
33#define MESSAGE_SIZE (sizeof(long) * 4)
34
35int operation_count = OPERATION_COUNT;
36
37void Init(
38  rtems_task_argument argument
39)
40{
41  rtems_status_code status;
42  rtems_id id;
43
44  Print_Warning();
45
46  puts( "\n\n*** TIME TEST 13 ***" );
47
48  status = rtems_task_create(
49    1,
50    RTEMS_MAXIMUM_PRIORITY - 1u,
51    RTEMS_MINIMUM_STACK_SIZE,
52    RTEMS_DEFAULT_MODES,
53    RTEMS_DEFAULT_ATTRIBUTES,
54    &id
55  );
56  directive_failed( status, "rtems_task_create" );
57
58  status = rtems_task_start( id, test_init, 0 );
59  directive_failed( status, "rtems_task_start" );
60
61  status = rtems_task_delete( RTEMS_SELF );
62  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
63}
64
65rtems_task test_init(
66  rtems_task_argument argument
67)
68{
69  int                 index;
70  rtems_task_entry    task_entry;
71  rtems_task_priority priority;
72  rtems_id            task_id;
73  rtems_status_code   status;
74
75/*  As each task is started, it preempts this task and
76 *  performs a blocking rtems_message_queue_receive.  Upon completion of
77 *  this loop all created tasks are blocked.
78 */
79
80  status = rtems_message_queue_create(
81    rtems_build_name( 'M', 'Q', '1', ' '  ),
82    OPERATION_COUNT,
83    MESSAGE_SIZE,
84    RTEMS_DEFAULT_ATTRIBUTES,
85    &Queue_id
86  );
87  directive_failed( status, "rtems_message_queue_create" );
88
89  priority = RTEMS_MAXIMUM_PRIORITY - 2u;
90
91  if ( OPERATION_COUNT > RTEMS_MAXIMUM_PRIORITY - 2u )
92    operation_count =  (int)(RTEMS_MAXIMUM_PRIORITY - 2u);
93
94  for( index = 0; index < operation_count ; index++ ) {
95    status = rtems_task_create(
96      rtems_build_name( 'T', 'I', 'M', 'E'  ),
97      priority,
98      RTEMS_MINIMUM_STACK_SIZE,
99      RTEMS_DEFAULT_MODES,
100      RTEMS_DEFAULT_ATTRIBUTES,
101      &task_id
102    );
103    directive_failed( status, "rtems_task_create LOOP" );
104
105    priority--;
106
107    if ( index==operation_count-1 ) task_entry = High_task;
108    else                            task_entry = Middle_tasks;
109
110    status = rtems_task_start( task_id, task_entry, 0 );
111    directive_failed( status, "rtems_task_start LOOP" );
112  }
113
114  benchmark_timer_initialize();
115    (void) rtems_message_queue_urgent( Queue_id, Buffer, MESSAGE_SIZE );
116}
117
118rtems_task Middle_tasks(
119  rtems_task_argument argument
120)
121{
122  size_t  size;
123
124  (void) rtems_message_queue_receive(
125           Queue_id,
126           (long (*)[4]) Buffer,
127           &size,
128           RTEMS_DEFAULT_OPTIONS,
129           RTEMS_NO_TIMEOUT
130         );
131
132  (void) rtems_message_queue_urgent( Queue_id, (long (*)[4]) Buffer, size );
133}
134
135rtems_task High_task(
136  rtems_task_argument argument
137)
138{
139  size_t  size;
140
141  (void) rtems_message_queue_receive(
142           Queue_id,
143           (long (*)[4]) Buffer,
144           &size,
145           RTEMS_DEFAULT_OPTIONS,
146           RTEMS_NO_TIMEOUT
147         );
148
149  end_time = benchmark_timer_read();
150
151  put_time(
152    "rtems_message_queue_urgent: task readied preempts caller",
153    end_time,
154    operation_count,
155    0,
156    CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT
157  );
158
159  puts( "*** END OF TEST 13 ***" );
160  rtems_test_exit( 0 );
161}
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