tmtests/tmck/tmtest.ads

0001 -- SPDX-License-Identifier: BSD-2-Clause
0002
0003 --
0004 --  TMTEST / SPECIFICATION
0005 --
0006 --  DESCRIPTION:
0007 --
0008 --  This package is the specification for Timer Check Test of the RTEMS
0009 --  Timing Test Suite.
0010 --
0011 --  DEPENDENCIES:
0012 --
0013 --
0014 --
0015 --  COPYRIGHT (c) 1989-2011.
0016 --  On-Line Applications Research Corporation (OAR).
0017 --
0018 --  Redistribution and use in source and binary forms, with or without
0019 --  modification, are permitted provided that the following conditions
0020 --  are met:
0021 --  1. Redistributions of source code must retain the above copyright
0022 --     notice, this list of conditions and the following disclaimer.
0023 --  2. Redistributions in binary form must reproduce the above copyright
0024 --     notice, this list of conditions and the following disclaimer in the
0025 --     documentation and/or other materials provided with the distribution.
0026 --
0027 --  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0028 --  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0029 --  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0030 --  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0031 --  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0032 --  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0033 --  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0034 --  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0035 --  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0036 --  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0037 --  POSSIBILITY OF SUCH DAMAGE.
0038 --
0039
0040 with RTEMS;
0041 with RTEMS.TASKS;
0042
0043 package TMTEST is
0044
0045 --
0046 --  These arrays contain the IDs and NAMEs of all RTEMS tasks created
0047 --  by this test.
0048 --
0049
0050    TASK_ID   : array ( RTEMS.UNSIGNED32 range 1 .. 3 ) of RTEMS.ID;
0051    TASK_NAME : array ( RTEMS.UNSIGNED32 range 1 .. 3 ) of RTEMS.NAME;
0052
0053 --
0054 --  The following variable is set to the execution time returned
0055 --  by the timer.
0056 --
0057
0058    END_TIME  : RTEMS.UNSIGNED32;
0059
0060 --
0061 --  The following defines the number of iterations of each timed
0062 --  operation to perform.
0063 --
0064
0065    OPERATION_COUNT      : constant RTEMS.UNSIGNED32 := 100000;
0066
0067 --
0068 --  The following array is used to determine how many times
0069 --  each time between 0 and 1000 microseconds was returned
0070 --  when simply starting and stopping the timer.
0071
0072    DISTRIBUTION : array ( RTEMS.UNSIGNED32 range 0 .. 10000 ) of RTEMS.UNSIGNED32;
0073
0074 --
0075 --  INIT
0076 --
0077 --  DESCRIPTION:
0078 --
0079 --  This RTEMS task initializes the application.
0080 --
0081
0082    procedure INIT (
0083       ARGUMENT : in     RTEMS.TASKS.ARGUMENT
0084    );
0085    pragma Convention (C, INIT);
0086
0087 --
0088 --  TASK_1
0089 --
0090 --  DESCRIPTION:
0091 --
0092 --  This RTEMS task invokes CHECK_READ_TIMER before demonstrating
0093 --  that increasing the order of magnitude of the number of loop
0094 --  iterations performed has a corresponding impact on the time
0095 --  reported by the timer driver.
0096 --
0097
0098    procedure TASK_1 (
0099       ARGUMENT : in     RTEMS.TASKS.ARGUMENT
0100    );
0101    pragma Convention (C, TASK_1);
0102
0103 --
0104 --  CHECK_READ_TIMER
0105 --
0106 --  DESCRIPTION:
0107 --
0108 --  This subprogram is used to determine the overhead associated
0109 --  with starting and stopping the timer.  It is also useful
0110 --  for determining if unexpected times will be reported.
0111 --
0112
0113    procedure CHECK_READ_TIMER;
0114
0115 end TMTEST;