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---
--- TMTEST / SPECIFICATION
---
--- DESCRIPTION:
---
--- This package is the specification for Test 4 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 TIME_TEST_SUPPORT;
-with TIMER_DRIVER;
-with RTEMS;
-
-package TMTEST is
-
---
--- This array contains the IDs of all RTEMS tasks created by this test.
---
-
- TASK_ID : array ( RTEMS.UNSIGNED32
- range 1 .. TIME_TEST_SUPPORT.OPERATION_COUNT ) of RTEMS.ID;
-
---
--- This variable contains the id of the highest priority task
--- in the system.
---
-
- HIGHEST_ID : RTEMS.ID;
-
---
--- The following is the ID of the semaphore used for timing operations.
---
-
- SEMAPHORE_ID : RTEMS.ID;
-
---
--- The following is used to perform the same operation
--- on a group of tasks.
---
-
- TASK_COUNT : RTEMS.UNSIGNED32;
-
---
--- 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
- );
-
---
--- TEST_INIT
---
--- DESCRIPTION:
---
--- This subprogram performs test initialization.
---
-
- procedure TEST_INIT;
-
---
--- HIGHEST_TASK
---
--- DESCRIPTION:
---
--- This RTEMS task is created by one of the LOW_TASKS. The
--- first time it executes, it performs a blocking SEMAPHORE_OBTAIN
--- which transfers control of the processor to HIGH_TASK.
--- The first time HIGHEST_TASK is restarted, it stops the
--- timer and reports the execution time for a TASK_RESTART
--- for a blocked task which preempts the caller. The second
--- time HIGHEST_TASK is restarted, it stops the timer and reports
--- the execution time for a TASK_RESTART for a ready task which
--- has its original priority restored and preempts the caller.
---
-
- procedure HIGHEST_TASK (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
---
--- HIGH_TASK
---
--- DESCRIPTION:
---
--- This RTEMS task is created by one of the LOW_TASKS. This
--- task restarts HIGHEST_TASK twice. HIGHEST_TASK is blocked the
--- first time and preempts this task when restarted. HIGHEST_TASK
--- is ready the second time but has lowered its priority. When
--- restarted for the second time, HIGHEST_TASK will have its
--- original priority restored and preempt this task.
--- Once control of the processor is returned to this task after
--- HIGHEST_TASK deletes itself, the following execution times
--- are measured and reported.
---
--- + readying SEMAPHORE_RELEASE
--- + TASK_CREATE
--- + TASK_START
--- + TASK_RESTART of a suspended task
--- + TASK_DELETE of a suspended task
--- + TASK_RESTART of a ready task
--- + TASK_RESTART of a blocked task which does not cause a preempt
--- + TASK_DELETE of a blocked task
---
-
- procedure HIGH_TASK (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
---
--- LOW_TASKS
---
--- DESCRIPTION:
---
--- The last of these RTEMS tasks to execute creates HIGH_TASK
--- and HIGHEST_TASK. All of these tasks perform a blocking
--- SEMAPHORE_OBTAIN.
---
-
- procedure LOW_TASKS (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
---
--- RESTART_TASK
---
--- DESCRIPTION:
---
--- This RTEMS task
---
-
- procedure RESTART_TASK (
- ARGUMENT : in RTEMS.TASK_ARGUMENT
- );
-
-end TMTEST;