1 | /* |
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2 | * |
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3 | * COPYRIGHT (c) 1989-1999. |
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4 | * On-Line Applications Research Corporation (OAR). |
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5 | * |
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6 | * The license and distribution terms for this file may be |
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7 | * found in the file LICENSE in this distribution or at |
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8 | * http://www.rtems.com/license/LICENSE. |
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9 | * |
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10 | * $Id$ |
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11 | */ |
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12 | |
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13 | #define CONFIGURE_INIT |
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14 | #include "system.h" |
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15 | |
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16 | rtems_id Semaphore_id; |
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17 | rtems_task test_init( |
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18 | rtems_task_argument argument |
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19 | ); |
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20 | |
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21 | rtems_task Middle_tasks( |
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22 | rtems_task_argument argument |
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23 | ); |
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24 | |
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25 | rtems_task High_task( |
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26 | rtems_task_argument argument |
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27 | ); |
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28 | |
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29 | |
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30 | rtems_task Init( |
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31 | rtems_task_argument argument |
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32 | ) |
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33 | { |
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34 | rtems_status_code status; |
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35 | rtems_id task_id; |
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36 | |
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37 | Print_Warning(); |
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38 | |
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39 | puts( "\n\n*** TIME TEST 3 ***" ); |
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40 | status = rtems_task_create( |
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41 | rtems_build_name( 'T', 'A', '1', ' ' ), |
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42 | 252, |
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43 | RTEMS_MINIMUM_STACK_SIZE, |
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44 | RTEMS_DEFAULT_MODES, |
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45 | RTEMS_DEFAULT_ATTRIBUTES, |
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46 | &task_id |
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47 | ); |
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48 | directive_failed( status, "rtems_task_create of test_init" ); |
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49 | |
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50 | status = rtems_task_start( task_id, test_init, 0 ); |
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51 | directive_failed( status, "rtems_task_start of test_init" ); |
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52 | |
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53 | status = rtems_task_delete( RTEMS_SELF ); |
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54 | directive_failed( status, "rtems_task_delete of RTEMS_SELF" ); |
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55 | } |
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56 | |
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57 | rtems_task test_init( |
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58 | rtems_task_argument argument |
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59 | ) |
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60 | { |
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61 | rtems_status_code status; |
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62 | uint32_t index; |
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63 | rtems_id task_id; |
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64 | rtems_task_priority priority; |
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65 | |
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66 | priority = 250; |
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67 | |
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68 | status = rtems_semaphore_create( |
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69 | rtems_build_name( 'S', 'M', '1', '\0'), |
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70 | 0, |
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71 | RTEMS_DEFAULT_ATTRIBUTES, |
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72 | RTEMS_NO_PRIORITY, |
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73 | &Semaphore_id |
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74 | ); |
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75 | directive_failed( status, "rtems_semaphore_create of SM1" ); |
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76 | |
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77 | for ( index = 2 ; index <= OPERATION_COUNT ; index ++ ) { |
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78 | rtems_task_create( |
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79 | rtems_build_name( 'M', 'I', 'D', ' ' ), |
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80 | priority, |
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81 | RTEMS_MINIMUM_STACK_SIZE, |
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82 | RTEMS_DEFAULT_MODES, |
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83 | RTEMS_DEFAULT_ATTRIBUTES, |
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84 | &task_id |
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85 | ); |
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86 | directive_failed( status, "rtems_task_create middle" ); |
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87 | |
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88 | priority--; |
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89 | |
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90 | rtems_task_start( task_id, Middle_tasks, 0 ); |
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91 | directive_failed( status, "rtems_task_start middle" ); |
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92 | } |
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93 | |
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94 | status = rtems_task_create( |
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95 | rtems_build_name( 'H', 'I', 'G', 'H' ), |
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96 | priority, |
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97 | RTEMS_MINIMUM_STACK_SIZE, |
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98 | RTEMS_DEFAULT_MODES, |
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99 | RTEMS_DEFAULT_ATTRIBUTES, |
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100 | &task_id |
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101 | ); |
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102 | directive_failed( status, "rtems_task_create of high task" ); |
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103 | |
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104 | status = rtems_task_start( task_id, High_task, 0 ); |
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105 | directive_failed( status, "rtems_task_start of high task" ); |
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106 | |
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107 | Timer_initialize(); /* start the timer */ |
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108 | status = rtems_semaphore_release( Semaphore_id ); |
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109 | } |
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110 | |
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111 | rtems_task Middle_tasks( |
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112 | rtems_task_argument argument |
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113 | ) |
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114 | { |
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115 | rtems_status_code status; |
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116 | |
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117 | status = rtems_semaphore_obtain( |
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118 | Semaphore_id, |
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119 | RTEMS_DEFAULT_OPTIONS, |
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120 | RTEMS_NO_TIMEOUT |
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121 | ); |
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122 | |
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123 | status = rtems_semaphore_release( Semaphore_id ); |
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124 | } |
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125 | |
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126 | rtems_task High_task( |
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127 | rtems_task_argument argument |
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128 | ) |
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129 | { |
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130 | rtems_status_code status; |
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131 | |
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132 | status = rtems_semaphore_obtain( |
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133 | Semaphore_id, |
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134 | RTEMS_DEFAULT_OPTIONS, |
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135 | RTEMS_NO_TIMEOUT |
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136 | ); |
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137 | |
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138 | end_time = Read_timer(); |
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139 | |
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140 | put_time( |
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141 | "rtems_semaphore_release: task readied -- preempts caller", |
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142 | end_time, |
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143 | OPERATION_COUNT, |
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144 | 0, |
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145 | CALLING_OVERHEAD_SEMAPHORE_RELEASE |
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146 | ); |
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147 | |
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148 | puts( "*** END OF TEST 3 ***" ); |
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149 | rtems_test_exit( 0 ); |
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150 | } |
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