source:
rtems/c/src/tests/tmtests/tm11/task1.c
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95a81ab
Last change on this file since 95a81ab was 95a81ab, checked in by Joel Sherrill <joel.sherrill@…>, on 09/04/03 at 18:53:55 | |
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1 | /* |
2 | * |
3 | * COPYRIGHT (c) 1989-1999. |
4 | * On-Line Applications Research Corporation (OAR). |
5 | * |
6 | * The license and distribution terms for this file may be |
7 | * found in the file LICENSE in this distribution or at |
8 | * http://www.rtems.com/license/LICENSE. |
9 | * |
10 | * $Id$ |
11 | */ |
12 | |
13 | #define TEST_INIT |
14 | #include "system.h" |
15 | |
16 | rtems_id Queue_id; |
17 | |
18 | long Buffer[4]; |
19 | |
20 | rtems_task test_init( |
21 | rtems_task_argument argument |
22 | ); |
23 | |
24 | rtems_task Middle_tasks( |
25 | rtems_task_argument argument |
26 | ); |
27 | |
28 | rtems_task High_task( |
29 | rtems_task_argument argument |
30 | ); |
31 | |
32 | |
33 | void Init( |
34 | rtems_task_argument argument |
35 | ) |
36 | { |
37 | rtems_status_code status; |
38 | rtems_id id; |
39 | |
40 | Print_Warning(); |
41 | |
42 | puts( "\n\n*** TIME TEST 11 ***" ); |
43 | |
44 | status = rtems_task_create( |
45 | 1, |
46 | 251, |
47 | RTEMS_MINIMUM_STACK_SIZE, |
48 | RTEMS_DEFAULT_MODES, |
49 | RTEMS_DEFAULT_ATTRIBUTES, |
50 | &id |
51 | ); |
52 | directive_failed( status, "rtems_task_create" ); |
53 | |
54 | status = rtems_task_start( id, test_init, 0 ); |
55 | directive_failed( status, "rtems_task_start" ); |
56 | |
57 | status = rtems_task_delete( RTEMS_SELF ); |
58 | directive_failed( status, "rtems_task_delete of RTEMS_SELF" ); |
59 | } |
60 | |
61 | #define MESSAGE_SIZE (sizeof(long) * 4) |
62 | |
63 | rtems_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 | MESSAGE_SIZE, |
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 | RTEMS_MINIMUM_STACK_SIZE, |
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, Buffer, MESSAGE_SIZE ); |
111 | } |
112 | |
113 | rtems_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 | |
130 | rtems_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: task readied -- preempts caller", |
148 | end_time, |
149 | OPERATION_COUNT, |
150 | 0, |
151 | CALLING_OVERHEAD_MESSAGE_QUEUE_SEND |
152 | ); |
153 | |
154 | puts( "*** END OF TEST 11 ***" ); |
155 | rtems_test_exit( 0 ); |
156 | } |
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