source: rtems/c/src/tests/tmtests/tm16/task1.c @ ac7d5ef0

4.104.114.84.95
Last change on this file since ac7d5ef0 was ac7d5ef0, checked in by Joel Sherrill <joel.sherrill@…>, on May 11, 1995 at 5:39:37 PM

Initial revision

  • 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#include "system.h"
15#undef EXTERN
16#define EXTERN
17#include "conftbl.h"
18#include "gvar.h"
19
20rtems_unsigned32 Task_count;
21
22rtems_task test_init(
23  rtems_task_argument argument
24);
25
26rtems_task Middle_tasks(
27  rtems_task_argument argument
28);
29
30rtems_task High_task(
31  rtems_task_argument argument
32);
33
34rtems_task Init(
35  rtems_task_argument argument
36)
37{
38  rtems_id          id;
39  rtems_status_code status;
40
41  puts( "\n\n*** TIME TEST 16 ***" );
42
43  status = rtems_task_create(
44    rtems_build_name( 'T', 'E', 'S', 'T' ),
45    251,
46    2048,
47    RTEMS_DEFAULT_MODES,
48    RTEMS_DEFAULT_ATTRIBUTES,
49    &id
50  );
51  directive_failed( status, "rtems_task_create of test_init" );
52
53  status = rtems_task_start( id, test_init, 0 );
54  directive_failed( status, "rtems_task_start of test_init" );
55
56  status = rtems_task_delete( RTEMS_SELF );
57  directive_failed( status, "rtems_task_delete of RTEMS_SELF" );
58}
59
60rtems_task test_init(
61  rtems_task_argument argument
62)
63{
64  rtems_task_priority priority;
65  rtems_status_code   status;
66  rtems_unsigned32    index;
67  rtems_task_entry    task_entry;
68
69/*  As each task is started, it preempts this task and
70 *  performs a blocking rtems_event_receive.  Upon completion of
71 *  this loop all created tasks are blocked.
72 */
73
74  priority = 250;
75
76  for( index = 0 ; index <= OPERATION_COUNT ; index++ ) {
77    status = rtems_task_create(
78      rtems_build_name( 'M', 'I', 'D', ' ' ),
79      priority,
80      1024,
81      RTEMS_DEFAULT_MODES,
82      RTEMS_DEFAULT_ATTRIBUTES,
83      &Task_id[ index ]
84    );
85    directive_failed( status, "rtems_task_create LOOP" );
86
87    if (  index == OPERATION_COUNT ) task_entry = High_task;
88    else                             task_entry = Middle_tasks;
89
90    status = rtems_task_start( Task_id[ index ], task_entry, 0 );
91    directive_failed( status, "rtems_task_start LOOP" );
92
93    priority--;
94  }
95
96  Task_count = 0;
97
98  Timer_initialize();
99    (void) rtems_event_send( Task_id[ Task_count ], RTEMS_EVENT_16 );
100  /* preempts task */
101}
102
103rtems_task Middle_tasks(
104  rtems_task_argument argument
105)
106{
107  rtems_event_set event_out;
108
109  (void) rtems_event_receive(              /* task blocks */
110           RTEMS_EVENT_16,
111           RTEMS_DEFAULT_OPTIONS,
112           RTEMS_NO_TIMEOUT,
113           &event_out
114         );
115
116  Task_count++;
117
118  (void) rtems_event_send(               /* preempts task */
119    Task_id[ Task_count ],
120    RTEMS_EVENT_16
121  );
122}
123
124rtems_task High_task(
125  rtems_task_argument argument
126)
127{
128  rtems_event_set event_out;
129
130  (void) rtems_event_receive(                /* task blocks */
131            RTEMS_EVENT_16,
132            RTEMS_DEFAULT_OPTIONS,
133            RTEMS_NO_TIMEOUT,
134            &event_out
135          );
136
137  end_time = Read_timer();
138
139  put_time(
140    "rtems_event_send (preemptive)",
141    end_time,
142    OPERATION_COUNT,
143    0,
144    CALLING_OVERHEAD_EVENT_SEND
145  );
146
147  exit( 0 );
148}
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