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---
--- TMTEST / SPECIFICATION
---
--- DESCRIPTION:
---
--- This package is the specification for Test 22 of the RTEMS
--- Timing Test Suite.
---
--- DEPENDENCIES:
---
---
---
--- COPYRIGHT (c) 1989-1997.
--- On-Line Applications Research Corporation (OAR).
--- Copyright assigned to U.S. Government, 1994.
---
--- The license and distribution terms for this file may in
--- the file LICENSE in this distribution or at
--- http://www.OARcorp.com/rtems/license.html.
---
--- $Id$
---
-
-with TIMER_DRIVER;
-with RTEMS;
-
-package TMTEST is
-
---
--- Buffer Record similar to that used by RTEMS 3.2.1. Using this
--- avoids changes to the test.
---
-
- type BUFFER is
- record
- FIELD1 : RTEMS.UNSIGNED32; -- TEMPORARY UNTIL VARIABLE LENGTH
- FIELD2 : RTEMS.UNSIGNED32;
- FIELD3 : RTEMS.UNSIGNED32;
- FIELD4 : RTEMS.UNSIGNED32;
- end record;
-
---
--- The following is the ID of the message queue used for timing operations.
---
-
- MESSAGE_QUEUE_ID : RTEMS.ID;
-
---
--- The following variable is set to the execution time returned
--- by the timer.
---
-
- END_TIME : RTEMS.UNSIGNED32;
-
---
--- INIT
---
--- DESCRIPTION:
---
--- This RTEMS task initializes the application.
---
-
- procedure INIT (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
---
--- HIGH_TASK
---
--- DESCRIPTION:
---
--- This RTEMS task is created by LOW_TASK and executes after
--- LOW_TASK has performed a blocking MESSAGE_QUEUE_RECEIVE.
--- This task then executes and performs a readying
--- MESSAGE_QUEUE_BROADCAST and reports its execution time.
--- Finally, the task suspends itself so LOW_TASK can continue
--- execution.
---
-
- procedure HIGH_TASK (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
---
--- LOW_TASK
---
--- DESCRIPTION:
---
--- This RTEMS task performs a blocking MESSAGE_QUEUE_RECEIVE
--- so that when HIGH_TASK performs a MESSAGE_QUEUE_BROADCAST,
--- there will be a task to be readied. Following this, the
--- execution time for a MESSAGE_QUEUE_BROADCAST to a message
--- queue with no waiting tasks is measured and reported.
--- Then this task performs another blocking MESSAGE_QUEUE_RECEIVE
--- so that when PREEMPT_TASK performs a MESSAGE_QUEUE_BROADCAST,
--- PREEMPT_TASK will be preempted by this task. After control
--- of the processor is transferred back to this task by the
--- preemption, the timer is stopped and the execution time of
--- a preemptive MESSAGE_QUEUE_BROADCAST is reported.
---
-
- procedure LOW_TASK (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
---
--- PREEMPT_TASK
---
--- DESCRIPTION:
---
--- This RTEMS task starts the timer and performs a preemptive
--- MESSAGE_QUEUE_BROADCAST.
---
-
- procedure PREEMPT_TASK (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
-end TMTEST;