1 | /* |
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2 | * Classic API Signal to Task from ISR |
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3 | * |
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4 | * COPYRIGHT (c) 1989-2008. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * The license and distribution terms for this file may be |
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8 | * found in the file LICENSE in this distribution or at |
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9 | * http://www.rtems.com/license/LICENSE. |
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10 | * |
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11 | * $Id$ |
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12 | */ |
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13 | |
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14 | #define CONFIGURE_INIT |
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15 | #include "system.h" |
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16 | |
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17 | volatile boolean case_hit; |
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18 | |
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19 | rtems_id main_task; |
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20 | rtems_id other_task; |
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21 | |
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22 | rtems_timer_service_routine test_event_from_isr( |
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23 | rtems_id timer, |
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24 | void *arg |
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25 | ) |
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26 | { |
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27 | rtems_status_code status; |
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28 | |
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29 | if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED ) { |
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30 | /* |
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31 | * This event send hits the critical section but sends to |
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32 | * another task so doesn't impact this critical section. |
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33 | */ |
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34 | rtems_event_send( other_task, 0x02 ); |
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35 | |
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36 | /* |
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37 | * This event send hits the main task but doesn't satisfy |
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38 | * it's blocking condition so it will still block |
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39 | */ |
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40 | rtems_event_send( main_task, 0x02 ); |
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41 | |
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42 | case_hit = TRUE; |
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43 | } |
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44 | status = rtems_event_send( main_task, 0x01 ); |
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45 | } |
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46 | |
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47 | rtems_timer_service_routine test_event_with_timeout_from_isr( |
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48 | rtems_id timer, |
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49 | void *arg |
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50 | ) |
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51 | { |
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52 | rtems_status_code status; |
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53 | |
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54 | if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_NOTHING_HAPPENED ) { |
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55 | /* |
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56 | * We want to catch the task while it is blocking. Otherwise |
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57 | * just send and make it happy. |
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58 | */ |
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59 | case_hit = TRUE; |
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60 | } |
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61 | status = rtems_event_send( main_task, 0x01 ); |
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62 | } |
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63 | |
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64 | rtems_task Init( |
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65 | rtems_task_argument argument |
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66 | ) |
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67 | { |
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68 | rtems_status_code status; |
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69 | rtems_id timer; |
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70 | rtems_event_set out; |
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71 | int i; |
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72 | int max; |
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73 | int iterations = 0; |
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74 | |
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75 | puts( "\n\n*** TEST 39 ***" ); |
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76 | |
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77 | main_task = rtems_task_self(); |
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78 | |
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79 | /* |
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80 | * Timer used in multiple ways |
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81 | */ |
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82 | status = rtems_timer_create( 1, &timer ); |
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83 | directive_failed( status, "rtems_timer_create" ); |
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84 | |
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85 | status = rtems_task_create( |
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86 | 0xa5a5a5a5, |
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87 | 1, |
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88 | RTEMS_MINIMUM_STACK_SIZE, |
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89 | RTEMS_DEFAULT_MODES, |
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90 | RTEMS_DEFAULT_ATTRIBUTES, |
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91 | &other_task |
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92 | ); |
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93 | directive_failed( status, "rtems_task_create" ); |
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94 | |
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95 | /* |
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96 | * Test Event send successful from ISR -- receive is forever |
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97 | */ |
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98 | case_hit = FALSE; |
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99 | iterations = 0; |
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100 | max = 1; |
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101 | |
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102 | while (1) { |
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103 | if ( case_hit ) |
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104 | break; |
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105 | status = rtems_timer_fire_after( timer, 1, test_event_from_isr, NULL ); |
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106 | directive_failed( status, "timer_fire_after failed" ); |
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107 | |
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108 | for (i=0 ; i<max ; i++ ) |
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109 | if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_SATISFIED ) |
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110 | break; |
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111 | |
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112 | status = rtems_event_receive( 0x01, RTEMS_DEFAULT_OPTIONS, 0, &out ); |
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113 | directive_failed( status, "rtems_event_receive" ); |
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114 | if ( case_hit == TRUE ) |
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115 | break; |
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116 | max += 2; |
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117 | |
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118 | /* with our clock tick, this is about 30 seconds */ |
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119 | if ( ++iterations >= 4 * 1000 * 30) |
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120 | break; |
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121 | } |
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122 | |
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123 | printf( |
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124 | "Event sent from ISR hitting synchronization point has %soccurred\n", |
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125 | (( case_hit == TRUE ) ? "" : "NOT ") |
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126 | ); |
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127 | |
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128 | /* |
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129 | * Test Event send successful from ISR -- receive has timeout |
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130 | */ |
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131 | case_hit = FALSE; |
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132 | iterations = 0; |
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133 | max = 1; |
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134 | |
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135 | while (1) { |
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136 | if ( case_hit ) |
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137 | break; |
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138 | status = rtems_timer_fire_after( |
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139 | timer, 1, test_event_with_timeout_from_isr, NULL ); |
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140 | directive_failed( status, "timer_fire_after failed" ); |
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141 | |
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142 | for (i=0 ; i<max ; i++ ) |
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143 | if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_SATISFIED ) |
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144 | break; |
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145 | |
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146 | status = rtems_event_receive( 0x01, RTEMS_DEFAULT_OPTIONS, 10, &out ); |
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147 | directive_failed( status, "rtems_event_receive" ); |
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148 | if ( case_hit == TRUE ) |
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149 | break; |
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150 | max += 2; |
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151 | |
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152 | /* with our clock tick, this is about 30 seconds */ |
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153 | if ( ++iterations >= 4 * 1000 * 30) |
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154 | break; |
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155 | } |
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156 | |
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157 | printf( |
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158 | "Event sent from ISR (with timeout) hitting synchronization " |
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159 | "point has %soccurred\n", |
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160 | (( case_hit == TRUE ) ? "" : "NOT ") |
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161 | ); |
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162 | |
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163 | /* |
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164 | * Now try for a timeout case |
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165 | */ |
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166 | iterations = 0; |
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167 | case_hit = FALSE; |
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168 | max = 1; |
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169 | |
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170 | puts( |
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171 | "Run multiple times in attempt to hit event timeout synchronization point" |
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172 | ); |
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173 | while (1) { |
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174 | |
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175 | for (i=0 ; i<max ; i++ ) |
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176 | if ( _Event_Sync_state == THREAD_BLOCKING_OPERATION_SATISFIED ) |
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177 | break; |
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178 | |
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179 | status = rtems_event_receive( 0x01, RTEMS_DEFAULT_OPTIONS, 1, &out ); |
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180 | fatal_directive_status( status, RTEMS_TIMEOUT, "event_receive timeout" ); |
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181 | |
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182 | if ( ++max > 10240 ) |
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183 | max = 0; |
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184 | |
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185 | /* with our clock tick, this is about 30 seconds */ |
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186 | if ( ++iterations >= 4 * 1000 * 30) |
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187 | break; |
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188 | |
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189 | } |
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190 | |
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191 | puts( "*** END OF TEST 39 ***" ); |
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192 | rtems_test_exit( 0 ); |
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193 | } |
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