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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13 | -- COPYRIGHT (c) 1989-1997. |
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14 | -- On-Line Applications Research Corporation (OAR). |
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15 | -- Copyright assigned to U.S. Government, 1994. |
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16 | -- |
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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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20 | -- |
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21 | -- $Id$ |
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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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