1 | /* |
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2 | * COPYRIGHT (c) 1989-2009. |
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3 | * On-Line Applications Research Corporation (OAR). |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.com/license/LICENSE. |
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8 | * |
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9 | * $Id$ |
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10 | */ |
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11 | |
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12 | #define CONFIGURE_INIT |
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13 | #include "system.h" |
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14 | |
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15 | rtems_task Test_task( |
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16 | rtems_task_argument argument |
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17 | ); |
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18 | |
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19 | rtems_task Init( |
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20 | rtems_task_argument argument |
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21 | ) |
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22 | { |
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23 | rtems_status_code status; |
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24 | |
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25 | Print_Warning(); |
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26 | |
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27 | puts( "\n\n*** TIME TEST 1 ***" ); |
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28 | |
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29 | Task_name[ 1 ] = rtems_build_name( 'T', 'A', '1', ' ' ); |
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30 | Task_name[ 2 ] = rtems_build_name( 'T', 'A', '2', ' ' ); |
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31 | Task_name[ 3 ] = rtems_build_name( 'T', 'A', '3', ' ' ); |
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32 | |
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33 | status = rtems_task_create( |
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34 | Task_name[ 1 ], |
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35 | (RTEMS_MAXIMUM_PRIORITY / 2u) + 1u, |
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36 | RTEMS_MINIMUM_STACK_SIZE, |
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37 | RTEMS_DEFAULT_MODES, |
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38 | RTEMS_DEFAULT_ATTRIBUTES, |
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39 | &Task_id[ 1 ] |
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40 | ); |
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41 | directive_failed( status, "rtems_task_create of TA1" ); |
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42 | |
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43 | status = rtems_task_start( Task_id[ 1 ], Test_task, 0 ); |
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44 | directive_failed( status, "rtems_task_start of TA1" ); |
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45 | |
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46 | status = rtems_task_delete( RTEMS_SELF ); |
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47 | directive_failed( status, "rtems_task_delete of RTEMS_SELF" ); |
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48 | |
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49 | } |
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50 | |
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51 | rtems_task Test_task( |
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52 | rtems_task_argument argument |
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53 | ) |
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54 | { |
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55 | uint32_t semaphore_obtain_time; |
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56 | uint32_t semaphore_release_time; |
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57 | uint32_t semaphore_obtain_no_wait_time; |
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58 | uint32_t semaphore_obtain_loop_time; |
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59 | uint32_t semaphore_release_loop_time; |
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60 | uint32_t index; |
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61 | uint32_t iterations; |
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62 | rtems_name name; |
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63 | rtems_id smid; |
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64 | rtems_status_code status; |
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65 | |
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66 | name = rtems_build_name( 'S', 'M', '1', ' ' ); |
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67 | |
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68 | semaphore_obtain_time = 0; |
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69 | semaphore_release_time = 0; |
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70 | semaphore_obtain_no_wait_time = 0; |
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71 | semaphore_obtain_loop_time = 0; |
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72 | semaphore_release_loop_time = 0; |
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73 | |
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74 | |
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75 | /* Time one invocation of rtems_semaphore_create */ |
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76 | |
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77 | benchmark_timer_initialize(); |
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78 | (void) rtems_semaphore_create( |
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79 | name, |
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80 | OPERATION_COUNT, |
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81 | RTEMS_DEFAULT_MODES, |
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82 | RTEMS_NO_PRIORITY, |
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83 | &smid |
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84 | ); |
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85 | end_time = benchmark_timer_read(); |
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86 | put_time( |
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87 | "rtems_semaphore_create", |
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88 | end_time, |
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89 | 1, |
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90 | 0, |
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91 | CALLING_OVERHEAD_SEMAPHORE_CREATE |
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92 | ); |
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93 | |
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94 | /* Time one invocation of rtems_semaphore_delete */ |
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95 | |
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96 | benchmark_timer_initialize(); |
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97 | (void) rtems_semaphore_delete( smid ); |
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98 | end_time = benchmark_timer_read(); |
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99 | put_time( |
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100 | "rtems_semaphore_delete", |
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101 | end_time, |
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102 | 1, |
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103 | 0, |
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104 | CALLING_OVERHEAD_SEMAPHORE_CREATE |
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105 | ); |
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106 | |
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107 | status = rtems_semaphore_create( |
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108 | name, |
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109 | OPERATION_COUNT, |
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110 | RTEMS_DEFAULT_ATTRIBUTES, |
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111 | RTEMS_NO_PRIORITY, |
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112 | &smid |
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113 | ); |
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114 | |
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115 | for ( iterations=OPERATION_COUNT ; iterations ; iterations-- ) { |
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116 | |
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117 | benchmark_timer_initialize(); |
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118 | for ( index = 1 ; index<=OPERATION_COUNT ; index++ ) |
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119 | (void) benchmark_timer_empty_function(); |
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120 | end_time = benchmark_timer_read(); |
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121 | |
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122 | semaphore_obtain_loop_time += end_time; |
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123 | semaphore_release_loop_time += end_time; |
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124 | |
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125 | /* rtems_semaphore_obtain (available) */ |
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126 | |
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127 | benchmark_timer_initialize(); |
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128 | for ( index = 1 ; index<=OPERATION_COUNT ; index++ ) |
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129 | (void) rtems_semaphore_obtain( |
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130 | smid, |
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131 | RTEMS_DEFAULT_OPTIONS, |
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132 | RTEMS_NO_TIMEOUT |
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133 | ); |
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134 | end_time = benchmark_timer_read(); |
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135 | |
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136 | semaphore_obtain_time += end_time; |
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137 | |
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138 | /* rtems_semaphore_release */ |
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139 | |
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140 | benchmark_timer_initialize(); |
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141 | for ( index = 1 ; index<=OPERATION_COUNT ; index++ ) |
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142 | (void) rtems_semaphore_release( smid ); |
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143 | end_time = benchmark_timer_read(); |
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144 | |
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145 | semaphore_release_time += end_time; |
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146 | |
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147 | /* semaphore obtain (RTEMS_NO_WAIT) */ |
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148 | benchmark_timer_initialize(); |
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149 | for ( index = 1 ; index<=OPERATION_COUNT ; index++ ) |
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150 | rtems_semaphore_obtain( smid, RTEMS_NO_WAIT, RTEMS_NO_TIMEOUT ); |
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151 | semaphore_obtain_no_wait_time += benchmark_timer_read(); |
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152 | |
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153 | benchmark_timer_initialize(); |
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154 | for ( index = 1 ; index<=OPERATION_COUNT ; index++ ) |
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155 | rtems_semaphore_release( smid ); |
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156 | end_time = benchmark_timer_read(); |
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157 | |
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158 | semaphore_release_time += end_time; |
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159 | } |
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160 | |
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161 | put_time( |
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162 | "rtems_semaphore_obtain: available", |
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163 | semaphore_obtain_time, |
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164 | OPERATION_COUNT * OPERATION_COUNT, |
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165 | semaphore_obtain_loop_time, |
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166 | CALLING_OVERHEAD_SEMAPHORE_OBTAIN |
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167 | ); |
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168 | |
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169 | put_time( |
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170 | "rtems_semaphore_obtain: not available -- NO_WAIT", |
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171 | semaphore_obtain_no_wait_time, |
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172 | OPERATION_COUNT * OPERATION_COUNT, |
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173 | semaphore_obtain_loop_time, |
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174 | CALLING_OVERHEAD_SEMAPHORE_OBTAIN |
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175 | ); |
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176 | |
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177 | put_time( |
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178 | "rtems_semaphore_release: no waiting tasks", |
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179 | semaphore_release_time, |
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180 | OPERATION_COUNT * OPERATION_COUNT * 2, |
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181 | semaphore_release_loop_time * 2, |
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182 | CALLING_OVERHEAD_SEMAPHORE_RELEASE |
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183 | ); |
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184 | |
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185 | puts( "*** END OF TEST 1 ***" ); |
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186 | rtems_test_exit( 0 ); |
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187 | } |
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