source: rtems/c/src/tests/tmtests/tm11/task1.c @ 4b374f36

4.104.114.84.95
Last change on this file since 4b374f36 was 4b374f36, checked in by Joel Sherrill <joel.sherrill@…>, on Aug 17, 1995 at 7:36:43 PM

maximum number of messages removed and include statement cleanup

  • Property mode set to 100644
File size: 3.3 KB
Line 
1/*
2 *
3 *  COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
4 *  On-Line Applications Research Corporation (OAR).
5 *  All rights assigned to U.S. Government, 1994.
6 *
7 *  This material may be reproduced by or for the U.S. Government pursuant
8 *  to the copyright license under the clause at DFARS 252.227-7013.  This
9 *  notice must appear in all copies of this file and its derivatives.
10 *
11 *  task1.c,v 1.2 1995/05/31 17:15:50 joel Exp
12 */
13
14#include "system.h"
15#undef EXTERN
16#define EXTERN
17#include "conftbl.h"
18#include "gvar.h"
19
20rtems_id Queue_id;
21
22long Buffer[4];
23
24rtems_task test_init(
25  rtems_task_argument argument
26);
27
28rtems_task Middle_tasks(
29  rtems_task_argument argument
30);
31
32rtems_task High_task(
33  rtems_task_argument argument
34);
35
36
37void Init(
38  rtems_task_argument argument
39)
40{
41  rtems_status_code status;
42  rtems_id id;
43
44  puts( "\n\n*** TIME TEST 11 ***" );
45
46  status = rtems_task_create(
47    1,
48    251,
49    1024,
50    RTEMS_DEFAULT_MODES,
51    RTEMS_DEFAULT_ATTRIBUTES,
52    &id
53  );
54  directive_failed( status, "rtems_task_create" );
55
56  status = rtems_task_start( id, test_init, 0 );
57  directive_failed( status, "rtems_task_start" );
58
59  status = rtems_task_delete( RTEMS_SELF );
60  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
61}
62
63rtems_task test_init(
64  rtems_task_argument argument
65)
66{
67  rtems_unsigned32    index;
68  rtems_task_entry    task_entry;
69  rtems_task_priority priority;
70  rtems_id            task_id;
71  rtems_status_code   status;
72
73/*  As each task is started, it preempts this task and
74 *  performs a blocking rtems_message_queue_receive.  Upon completion of
75 *  this loop all created tasks are blocked.
76 */
77
78  status = rtems_message_queue_create(
79    rtems_build_name( 'M', 'Q', '1', ' '  ),
80    OPERATION_COUNT,
81    16,
82    RTEMS_DEFAULT_ATTRIBUTES,
83    &Queue_id
84  );
85  directive_failed( status, "rtems_message_queue_create" );
86
87  priority = 250;
88
89  for( index = 0; index < OPERATION_COUNT ; index++ ) {
90    status = rtems_task_create(
91      rtems_build_name( 'T', 'I', 'M', 'E'  ),
92      priority,
93      1024,
94      RTEMS_DEFAULT_MODES,
95      RTEMS_DEFAULT_ATTRIBUTES,
96      &task_id
97    );
98    directive_failed( status, "rtems_task_create LOOP" );
99
100    priority--;
101
102    if ( index==OPERATION_COUNT-1 ) task_entry = High_task;
103    else                            task_entry = Middle_tasks;
104
105    status = rtems_task_start( task_id, task_entry, 0 );
106    directive_failed( status, "rtems_task_start LOOP" );
107  }
108
109  Timer_initialize();
110    (void) rtems_message_queue_send( Queue_id, (long (*)[4]) Buffer, 16 );
111}
112
113rtems_task Middle_tasks(
114  rtems_task_argument argument
115)
116{
117  rtems_unsigned32 size;
118
119  (void) rtems_message_queue_receive(
120           Queue_id,
121           (long (*)[4]) Buffer,
122           &size,
123           RTEMS_DEFAULT_OPTIONS,
124           RTEMS_NO_TIMEOUT
125         );
126
127  (void) rtems_message_queue_send( Queue_id, (long (*)[4]) Buffer, size );
128}
129
130rtems_task High_task(
131  rtems_task_argument argument
132)
133{
134  rtems_unsigned32 size;
135 
136  (void) rtems_message_queue_receive(
137           Queue_id,
138           (long (*)[4]) Buffer,
139           &size,
140           RTEMS_DEFAULT_OPTIONS,
141           RTEMS_NO_TIMEOUT
142         );
143
144  end_time = Read_timer();
145
146  put_time(
147    "rtems_message_queue_send (preemptive)",
148    end_time,
149    OPERATION_COUNT,
150    0,
151    CALLING_OVERHEAD_MESSAGE_QUEUE_SEND
152  );
153
154  exit( 0 );
155}
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