source: rtems/c/src/ada-tests/tmtests/tm22/tmtest.ads @ b4be04e

4.104.114.84.95
Last change on this file since b4be04e was b4be04e, checked in by Joel Sherrill <joel.sherrill@…>, on 06/03/97 at 20:24:11

Removed Configuration Table information.

  • Property mode set to 100644
File size: 2.3 KB
Line 
1--
2--  TMTEST / SPECIFICATION
3--
4--  DESCRIPTION:
5--
6--  This package is the specification for Test 22 of the RTEMS
7--  Timing Test Suite.
8--
9--  DEPENDENCIES:
10--
11-- 
12--
13--  COPYRIGHT (c) 1989-1997.
14--  On-Line Applications Research Corporation (OAR).
15--  Copyright assigned to U.S. Government, 1994.
16--
17--  The license and distribution terms for this file may in
18--  the file LICENSE in this distribution or at
19--  http://www.OARcorp.com/rtems/license.html.
20--
21--  $Id$
22--
23
24with TIMER_DRIVER;
25with RTEMS;
26
27package TMTEST is
28
29--
30--  The following is the ID of the message queue used for timing operations.
31--
32
33   MESSAGE_QUEUE_ID : RTEMS.ID;
34
35--
36--  The following variable is set to the execution time returned
37--  by the timer.
38--
39
40   END_TIME  : RTEMS.UNSIGNED32;
41
42--
43--  INIT
44--
45--  DESCRIPTION:
46--
47--  This RTEMS task initializes the application.
48--
49
50   procedure INIT (
51      ARGUMENT : in     RTEMS.TASK_ARGUMENT
52   );
53
54--
55--  HIGH_TASK
56--
57--  DESCRIPTION:
58--
59--  This RTEMS task is created by LOW_TASK and executes after
60--  LOW_TASK has performed a blocking MESSAGE_QUEUE_RECEIVE.
61--  This task then executes and performs a readying
62--  MESSAGE_QUEUE_BROADCAST and reports its execution time.
63--  Finally, the task suspends itself so LOW_TASK can continue
64--  execution.
65--
66
67   procedure HIGH_TASK (
68      ARGUMENT : in     RTEMS.TASK_ARGUMENT
69   );
70
71--
72--  LOW_TASK
73--
74--  DESCRIPTION:
75--
76--  This RTEMS task performs a blocking MESSAGE_QUEUE_RECEIVE
77--  so that when HIGH_TASK performs a MESSAGE_QUEUE_BROADCAST,
78--  there will be a task to be readied.  Following this, the
79--  execution time for a MESSAGE_QUEUE_BROADCAST to a message
80--  queue with no waiting tasks is measured and reported.
81--  Then this task performs another blocking MESSAGE_QUEUE_RECEIVE
82--  so that when PREEMPT_TASK performs a MESSAGE_QUEUE_BROADCAST,
83--  PREEMPT_TASK will be preempted by this task.  After control
84--  of the processor is transferred back to this task by the
85--  preemption, the timer is stopped and the execution time of
86--  a preemptive MESSAGE_QUEUE_BROADCAST is reported.
87--
88
89   procedure LOW_TASK (
90      ARGUMENT : in     RTEMS.TASK_ARGUMENT
91   );
92
93--
94--  PREEMPT_TASK
95--
96--  DESCRIPTION:
97--
98--  This RTEMS task starts the timer and performs a preemptive
99--   MESSAGE_QUEUE_BROADCAST.
100--
101
102   procedure PREEMPT_TASK (
103      ARGUMENT : in     RTEMS.TASK_ARGUMENT
104   );
105
106end TMTEST;
Note: See TracBrowser for help on using the repository browser.