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 | #ifdef HAVE_CONFIG_H |
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13 | #include "config.h" |
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14 | #endif |
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15 | |
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16 | #define CONFIGURE_INIT |
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17 | #include "system.h" |
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18 | |
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19 | rtems_id Queue_id; |
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20 | |
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21 | long Buffer[4]; |
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22 | |
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23 | rtems_task test_init( |
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24 | rtems_task_argument argument |
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25 | ); |
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26 | |
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27 | rtems_task Middle_tasks( |
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28 | rtems_task_argument argument |
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29 | ); |
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30 | |
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31 | rtems_task High_task( |
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32 | rtems_task_argument argument |
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33 | ); |
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34 | |
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35 | #define MESSAGE_SIZE (sizeof(long) * 4) |
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36 | |
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37 | int operation_count = OPERATION_COUNT; |
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38 | |
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39 | void Init( |
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40 | rtems_task_argument argument |
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41 | ) |
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42 | { |
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43 | rtems_status_code status; |
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44 | rtems_id id; |
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45 | |
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46 | Print_Warning(); |
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47 | |
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48 | puts( "\n\n*** TIME TEST 13 ***" ); |
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49 | |
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50 | status = rtems_task_create( |
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51 | 1, |
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52 | RTEMS_MAXIMUM_PRIORITY - 1u, |
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53 | RTEMS_MINIMUM_STACK_SIZE, |
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54 | RTEMS_DEFAULT_MODES, |
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55 | RTEMS_DEFAULT_ATTRIBUTES, |
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56 | &id |
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57 | ); |
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58 | directive_failed( status, "rtems_task_create" ); |
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59 | |
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60 | status = rtems_task_start( id, test_init, 0 ); |
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61 | directive_failed( status, "rtems_task_start" ); |
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62 | |
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63 | status = rtems_task_delete( RTEMS_SELF ); |
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64 | directive_failed( status, "rtems_task_delete of RTEMS_SELF" ); |
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65 | } |
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66 | |
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67 | rtems_task test_init( |
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68 | rtems_task_argument argument |
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69 | ) |
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70 | { |
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71 | int index; |
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72 | rtems_task_entry task_entry; |
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73 | rtems_task_priority priority; |
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74 | rtems_id task_id; |
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75 | rtems_status_code status; |
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76 | |
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77 | /* As each task is started, it preempts this task and |
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78 | * performs a blocking rtems_message_queue_receive. Upon completion of |
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79 | * this loop all created tasks are blocked. |
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80 | */ |
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81 | |
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82 | status = rtems_message_queue_create( |
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83 | rtems_build_name( 'M', 'Q', '1', ' ' ), |
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84 | OPERATION_COUNT, |
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85 | MESSAGE_SIZE, |
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86 | RTEMS_DEFAULT_ATTRIBUTES, |
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87 | &Queue_id |
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88 | ); |
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89 | directive_failed( status, "rtems_message_queue_create" ); |
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90 | |
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91 | priority = RTEMS_MAXIMUM_PRIORITY - 2u; |
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92 | |
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93 | if ( OPERATION_COUNT > RTEMS_MAXIMUM_PRIORITY - 2u ) |
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94 | operation_count = (int)(RTEMS_MAXIMUM_PRIORITY - 2u); |
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95 | |
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96 | for( index = 0; index < operation_count ; index++ ) { |
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97 | status = rtems_task_create( |
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98 | rtems_build_name( 'T', 'I', 'M', 'E' ), |
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99 | priority, |
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100 | RTEMS_MINIMUM_STACK_SIZE, |
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101 | RTEMS_DEFAULT_MODES, |
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102 | RTEMS_DEFAULT_ATTRIBUTES, |
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103 | &task_id |
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104 | ); |
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105 | directive_failed( status, "rtems_task_create LOOP" ); |
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106 | |
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107 | priority--; |
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108 | |
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109 | if ( index==operation_count-1 ) task_entry = High_task; |
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110 | else task_entry = Middle_tasks; |
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111 | |
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112 | status = rtems_task_start( task_id, task_entry, 0 ); |
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113 | directive_failed( status, "rtems_task_start LOOP" ); |
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114 | } |
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115 | |
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116 | benchmark_timer_initialize(); |
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117 | (void) rtems_message_queue_urgent( Queue_id, Buffer, MESSAGE_SIZE ); |
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118 | } |
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119 | |
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120 | rtems_task Middle_tasks( |
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121 | rtems_task_argument argument |
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122 | ) |
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123 | { |
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124 | size_t size; |
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125 | |
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126 | (void) rtems_message_queue_receive( |
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127 | Queue_id, |
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128 | (long (*)[4]) Buffer, |
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129 | &size, |
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130 | RTEMS_DEFAULT_OPTIONS, |
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131 | RTEMS_NO_TIMEOUT |
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132 | ); |
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133 | |
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134 | (void) rtems_message_queue_urgent( Queue_id, (long (*)[4]) Buffer, size ); |
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135 | } |
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136 | |
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137 | rtems_task High_task( |
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138 | rtems_task_argument argument |
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139 | ) |
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140 | { |
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141 | size_t size; |
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142 | |
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143 | (void) rtems_message_queue_receive( |
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144 | Queue_id, |
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145 | (long (*)[4]) Buffer, |
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146 | &size, |
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147 | RTEMS_DEFAULT_OPTIONS, |
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148 | RTEMS_NO_TIMEOUT |
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149 | ); |
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150 | |
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151 | end_time = benchmark_timer_read(); |
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152 | |
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153 | put_time( |
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154 | "rtems_message_queue_urgent: task readied -- preempts caller", |
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155 | end_time, |
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156 | operation_count, |
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157 | 0, |
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158 | CALLING_OVERHEAD_MESSAGE_QUEUE_URGENT |
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159 | ); |
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160 | |
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161 | puts( "*** END OF TEST 13 ***" ); |
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162 | rtems_test_exit( 0 ); |
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163 | } |
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