source: rtems/c/src/tests/tmtests/tm16/task1.c @ 5c491aef

4.104.114.84.95
Last change on this file since 5c491aef was 5c491aef, checked in by Joel Sherrill <joel.sherrill@…>, on Dec 20, 1995 at 3:39:19 PM

changes remerged after lost in disk crash -- recovered from snapshot, partially recovered working tree, etc

  • Property mode set to 100644
File size: 3.2 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 *  $Id$
12 */
13
14#define TEST_INIT
15#include "system.h"
16
17rtems_unsigned32 Task_count;
18
19rtems_task test_init(
20  rtems_task_argument argument
21);
22
23rtems_task Middle_tasks(
24  rtems_task_argument argument
25);
26
27rtems_task High_task(
28  rtems_task_argument argument
29);
30
31rtems_task Init(
32  rtems_task_argument argument
33)
34{
35  rtems_id          id;
36  rtems_status_code status;
37
38  Print_Warning();
39
40  puts( "\n\n*** TIME TEST 16 ***" );
41
42  status = rtems_task_create(
43    rtems_build_name( 'T', 'E', 'S', 'T' ),
44    251,
45    RTEMS_MINIMUM_STACK_SIZE,
46    RTEMS_DEFAULT_MODES,
47    RTEMS_DEFAULT_ATTRIBUTES,
48    &id
49  );
50  directive_failed( status, "rtems_task_create of test_init" );
51
52  status = rtems_task_start( id, test_init, 0 );
53  directive_failed( status, "rtems_task_start of test_init" );
54
55  status = rtems_task_delete( RTEMS_SELF );
56  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
57}
58
59rtems_task test_init(
60  rtems_task_argument argument
61)
62{
63  rtems_task_priority priority;
64  rtems_status_code   status;
65  rtems_unsigned32    index;
66  rtems_task_entry    task_entry;
67
68/*  As each task is started, it preempts this task and
69 *  performs a blocking rtems_event_receive.  Upon completion of
70 *  this loop all created tasks are blocked.
71 */
72
73  priority = 250;
74
75  for( index = 0 ; index <= OPERATION_COUNT ; index++ ) {
76    status = rtems_task_create(
77      rtems_build_name( 'M', 'I', 'D', ' ' ),
78      priority,
79      RTEMS_MINIMUM_STACK_SIZE,
80      RTEMS_DEFAULT_MODES,
81      RTEMS_DEFAULT_ATTRIBUTES,
82      &Task_id[ index ]
83    );
84    directive_failed( status, "rtems_task_create LOOP" );
85
86    if (  index == OPERATION_COUNT ) task_entry = High_task;
87    else                             task_entry = Middle_tasks;
88
89    status = rtems_task_start( Task_id[ index ], task_entry, 0 );
90    directive_failed( status, "rtems_task_start LOOP" );
91
92    priority--;
93  }
94
95  Task_count = 0;
96
97  Timer_initialize();
98    (void) rtems_event_send( Task_id[ Task_count ], RTEMS_EVENT_16 );
99  /* preempts task */
100}
101
102rtems_task Middle_tasks(
103  rtems_task_argument argument
104)
105{
106  rtems_event_set event_out;
107
108  (void) rtems_event_receive(              /* task blocks */
109           RTEMS_EVENT_16,
110           RTEMS_DEFAULT_OPTIONS,
111           RTEMS_NO_TIMEOUT,
112           &event_out
113         );
114
115  Task_count++;
116
117  (void) rtems_event_send(               /* preempts task */
118    Task_id[ Task_count ],
119    RTEMS_EVENT_16
120  );
121}
122
123rtems_task High_task(
124  rtems_task_argument argument
125)
126{
127  rtems_event_set event_out;
128
129  (void) rtems_event_receive(                /* task blocks */
130            RTEMS_EVENT_16,
131            RTEMS_DEFAULT_OPTIONS,
132            RTEMS_NO_TIMEOUT,
133            &event_out
134          );
135
136  end_time = Read_timer();
137
138  put_time(
139    "rtems_event_send: task readied -- preempts caller",
140    end_time,
141    OPERATION_COUNT,
142    0,
143    CALLING_OVERHEAD_EVENT_SEND
144  );
145
146  puts( "*** END OF TEST 16 ***" );
147  exit( 0 );
148}
Note: See TracBrowser for help on using the repository browser.