1 | /* |
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2 | * Exercise thread queue enqueue and dequeue priority |
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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 | #include <stdio.h> |
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15 | #include <stdlib.h> |
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16 | |
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17 | #include <bsp.h> |
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18 | |
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19 | #include "tmacros.h" |
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20 | |
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21 | #define MAX_TASKS 20 |
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22 | |
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23 | /* |
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24 | * Carefully chosen to exercise threadq enqueue/dequeue priority logic. |
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25 | * Somewhat randomly sorted to ensure than if discipline is FIFO, run-time |
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26 | * behavior won't be the same when released. |
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27 | */ |
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28 | rtems_task_priority Priorities[MAX_TASKS] = { |
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29 | 37, 37, 37, 37, /* backward - more 2-n */ |
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30 | 2, 2, 2, 2, /* forward - multiple are on 2-n chain */ |
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31 | 4, 3, /* forward - search forward arbitrary */ |
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32 | 3, 3, 3, 3, /* forward - more 2-n */ |
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33 | 38, 37, /* backward - search backward arbitrary */ |
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34 | 34, 34, 34, 34, /* backward - multple on 2-n chain */ |
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35 | }; |
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36 | |
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37 | |
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38 | rtems_id Semaphore; |
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39 | rtems_id Task_id[ MAX_TASKS ]; |
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40 | rtems_name Task_name[ MAX_TASKS ]; |
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41 | |
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42 | rtems_task Locker_task( |
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43 | rtems_task_argument unused |
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44 | ) |
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45 | { |
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46 | rtems_id tid; |
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47 | uint32_t task_index; |
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48 | rtems_status_code status; |
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49 | |
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50 | status = rtems_task_ident( RTEMS_SELF, RTEMS_SEARCH_ALL_NODES, &tid ); |
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51 | directive_failed( status, "rtems_task_ident" ); |
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52 | |
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53 | task_index = task_number( tid ) - 1; |
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54 | |
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55 | status = rtems_semaphore_obtain( Semaphore, RTEMS_DEFAULT_OPTIONS, 0 ); |
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56 | directive_failed( status, "rtems_semaphore_obtain" ); |
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57 | |
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58 | put_name( Task_name[ task_index ], FALSE ); |
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59 | puts( " - unblocked - OK" ); |
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60 | |
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61 | (void) rtems_task_delete( RTEMS_SELF ); |
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62 | } |
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63 | |
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64 | void do_test( |
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65 | rtems_attribute attr, |
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66 | boolean extract /* TRUE if extract, not release */ |
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67 | ) |
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68 | { |
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69 | rtems_status_code status; |
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70 | int i; |
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71 | |
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72 | status = rtems_semaphore_create( |
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73 | rtems_build_name( 'S', 'E', 'M', '0' ), /* name = SEM0 */ |
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74 | 0, /* unlocked */ |
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75 | RTEMS_BINARY_SEMAPHORE | attr, /* mutex w/desired discipline */ |
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76 | 0, /* IGNORED */ |
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77 | &Semaphore |
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78 | ); |
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79 | directive_failed( status, "rtems_semaphore_create" ); |
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80 | |
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81 | for (i=0 ; i< MAX_TASKS ; i++ ) { |
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82 | |
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83 | Task_name[ i ] = rtems_build_name( |
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84 | 'T', |
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85 | 'A', |
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86 | '0' + (char)(i/10), |
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87 | '0' + (char)(i%10) |
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88 | ); |
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89 | |
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90 | status = rtems_task_create( |
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91 | Task_name[ i ], |
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92 | Priorities[ i ], |
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93 | RTEMS_MINIMUM_STACK_SIZE, |
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94 | RTEMS_DEFAULT_MODES, |
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95 | RTEMS_DEFAULT_ATTRIBUTES, |
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96 | &Task_id[ i ] |
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97 | ); |
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98 | directive_failed( status, "rtems_task_create" ); |
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99 | |
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100 | status = rtems_task_start( Task_id[ i ], Locker_task, i ); |
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101 | directive_failed( status, "rtems_task_start" ); |
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102 | |
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103 | status = rtems_task_wake_after( 10 ); |
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104 | directive_failed( status, "rtems_task_wake_after" ); |
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105 | } |
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106 | |
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107 | for (i=0 ; i< MAX_TASKS ; i++ ) { |
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108 | if ( extract == FALSE ) { |
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109 | status = rtems_semaphore_release( Semaphore ); |
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110 | directive_failed( status, "rtems_semaphore_release" ); |
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111 | |
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112 | status = rtems_task_wake_after( 100 ); |
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113 | directive_failed( status, "rtems_task_wake_after" ); |
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114 | } else { |
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115 | status = rtems_task_delete( Task_id[ i ] ); |
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116 | directive_failed( status, "rtems_task_delete" ); |
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117 | } |
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118 | } |
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119 | |
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120 | /* one extra release for the initial state */ |
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121 | status = rtems_semaphore_release( Semaphore ); |
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122 | directive_failed( status, "rtems_semaphore_release" ); |
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123 | |
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124 | /* now delete the semaphore since no one is waiting and it is unlocked */ |
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125 | status = rtems_semaphore_delete( Semaphore ); |
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126 | directive_failed( status, "rtems_semaphore_delete" ); |
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127 | } |
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128 | |
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129 | rtems_task Init( |
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130 | rtems_task_argument argument |
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131 | ) |
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132 | { |
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133 | puts( "\n\n*** START OF TEST 40 ***" ); |
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134 | |
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135 | if ( sizeof( Priorities ) / sizeof( rtems_task_priority ) != MAX_TASKS ) { |
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136 | puts( "Priorities table does not have right number of entries" ); |
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137 | exit( 0 ); |
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138 | } |
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139 | |
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140 | puts( "Exercising blocking discipline w/extract in FIFO order " ); |
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141 | do_test( RTEMS_FIFO, TRUE ); |
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142 | |
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143 | puts( "Exercising blocking discipline w/unblock in FIFO order" ); |
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144 | do_test( RTEMS_FIFO, FALSE ); |
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145 | |
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146 | rtems_test_pause_and_screen_number( 2 ); |
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147 | |
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148 | puts( "Exercising blocking discipline w/extract in priority order " ); |
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149 | do_test( RTEMS_PRIORITY, TRUE ); |
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150 | |
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151 | puts( "Exercising blocking discipline w/unblock in priority order" ); |
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152 | do_test( RTEMS_PRIORITY, FALSE ); |
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153 | |
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154 | puts( "*** END OF TEST 42 ***" ); |
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155 | exit(0); |
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156 | } |
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157 | |
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158 | /**************** START OF CONFIGURATION INFORMATION ****************/ |
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159 | |
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160 | #define CONFIGURE_INIT |
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161 | |
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162 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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163 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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164 | |
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165 | #define CONFIGURE_MAXIMUM_TASKS MAX_TASKS+1 |
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166 | #define CONFIGURE_MAXIMUM_SEMAPHORES 1 |
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167 | |
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168 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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169 | |
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170 | #include <rtems/confdefs.h> |
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171 | |
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172 | /**************** END OF CONFIGURATION INFORMATION ****************/ |
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173 | |
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