[6d4e604b] | 1 | -- |
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| 2 | -- TMTEST / SPECIFICATION |
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| 3 | -- |
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| 4 | -- DESCRIPTION: |
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| 5 | -- |
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| 6 | -- This package is the specification for Timer Check Test of the RTEMS |
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| 7 | -- Timing Test Suite. |
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| 8 | -- |
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| 9 | -- DEPENDENCIES: |
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| 10 | -- |
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| 11 | -- |
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| 12 | -- |
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[bf9ae83] | 13 | -- COPYRIGHT (c) 1989-1997. |
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[6d4e604b] | 14 | -- On-Line Applications Research Corporation (OAR). |
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[bf9ae83] | 15 | -- Copyright assigned to U.S. Government, 1994. |
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[6d4e604b] | 16 | -- |
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[bf9ae83] | 17 | -- The license and distribution terms for this file may in |
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| 18 | -- the file LICENSE in this distribution or at |
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| 19 | -- http://www.OARcorp.com/rtems/license.html. |
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[6d4e604b] | 20 | -- |
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[bf9ae83] | 21 | -- $Id$ |
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[6d4e604b] | 22 | -- |
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| 23 | |
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| 24 | with TIMER_DRIVER; |
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| 25 | with RTEMS; |
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| 26 | |
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| 27 | package TMTEST is |
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| 28 | |
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| 29 | -- |
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| 30 | -- These arrays contain the IDs and NAMEs of all RTEMS tasks created |
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| 31 | -- by this test. |
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| 32 | -- |
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| 33 | |
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| 34 | TASK_ID : array ( RTEMS.UNSIGNED32 range 1 .. 3 ) of RTEMS.ID; |
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| 35 | TASK_NAME : array ( RTEMS.UNSIGNED32 range 1 .. 3 ) of RTEMS.NAME; |
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| 36 | |
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| 37 | -- |
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| 38 | -- The following variable is set to the execution time returned |
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| 39 | -- by the timer. |
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| 40 | -- |
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| 41 | |
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| 42 | END_TIME : RTEMS.UNSIGNED32; |
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| 43 | |
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| 44 | -- |
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| 45 | -- The following defines the number of iterations of each timed |
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| 46 | -- operation to perform. |
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| 47 | -- |
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| 48 | |
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| 49 | OPERATION_COUNT : constant RTEMS.UNSIGNED32 := 100000; |
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| 50 | |
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| 51 | -- |
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| 52 | -- The following array is used to determine how many times |
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| 53 | -- each time between 0 and 1000 microseconds was returned |
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| 54 | -- when simply starting and stopping the timer. |
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| 55 | |
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| 56 | DISTRIBUTION : array ( RTEMS.UNSIGNED32 range 0 .. 10000 ) of RTEMS.UNSIGNED32; |
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| 57 | |
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| 58 | -- |
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| 59 | -- INIT |
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| 60 | -- |
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| 61 | -- DESCRIPTION: |
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| 62 | -- |
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| 63 | -- This RTEMS task initializes the application. |
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| 64 | -- |
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| 65 | |
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| 66 | procedure INIT ( |
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| 67 | ARGUMENT : in RTEMS.TASK_ARGUMENT |
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| 68 | ); |
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| 69 | |
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| 70 | -- |
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| 71 | -- TASK_1 |
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| 72 | -- |
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| 73 | -- DESCRIPTION: |
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| 74 | -- |
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| 75 | -- This RTEMS task invokes CHECK_READ_TIMER before demonstrating |
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| 76 | -- that increasing the order of magnitude of the number of loop |
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| 77 | -- iterations performed has a corresponding impact on the time |
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| 78 | -- reported by the timer driver. |
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| 79 | -- |
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| 80 | |
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| 81 | procedure TASK_1 ( |
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| 82 | ARGUMENT : in RTEMS.TASK_ARGUMENT |
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| 83 | ); |
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| 84 | |
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| 85 | -- |
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| 86 | -- CHECK_READ_TIMER |
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| 87 | -- |
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| 88 | -- DESCRIPTION: |
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| 89 | -- |
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| 90 | -- This subprogram is used to determine the overhead associated |
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| 91 | -- with starting and stopping the timer. It is also useful |
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| 92 | -- for determining if unexpected times will be reported. |
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| 93 | -- |
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| 94 | |
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| 95 | procedure CHECK_READ_TIMER; |
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| 96 | |
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| 97 | end TMTEST; |
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