1 | /* |
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2 | * |
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3 | * COPYRIGHT (c) 1989-2007. |
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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 TEST_INIT |
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14 | #include "system.h" |
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15 | |
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16 | rtems_id Queue_id; |
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17 | |
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18 | long Buffer[4]; |
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19 | |
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20 | rtems_task test_init( |
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21 | rtems_task_argument argument |
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22 | ); |
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23 | |
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24 | rtems_task Middle_tasks( |
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25 | rtems_task_argument argument |
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26 | ); |
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27 | |
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28 | rtems_task High_task( |
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29 | rtems_task_argument argument |
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30 | ); |
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31 | |
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32 | |
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33 | void Init( |
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34 | rtems_task_argument argument |
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35 | ) |
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36 | { |
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37 | rtems_status_code status; |
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38 | rtems_id id; |
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39 | |
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40 | Print_Warning(); |
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41 | |
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42 | puts( "\n\n*** TIME TEST 11 ***" ); |
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43 | |
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44 | status = rtems_task_create( |
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45 | 1, |
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46 | 251, |
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47 | RTEMS_MINIMUM_STACK_SIZE, |
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48 | RTEMS_DEFAULT_MODES, |
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49 | RTEMS_DEFAULT_ATTRIBUTES, |
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50 | &id |
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51 | ); |
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52 | directive_failed( status, "rtems_task_create" ); |
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53 | |
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54 | status = rtems_task_start( id, test_init, 0 ); |
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55 | directive_failed( status, "rtems_task_start" ); |
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56 | |
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57 | status = rtems_task_delete( RTEMS_SELF ); |
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58 | directive_failed( status, "rtems_task_delete of RTEMS_SELF" ); |
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59 | } |
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60 | |
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61 | #define MESSAGE_SIZE (sizeof(long) * 4) |
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62 | |
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63 | rtems_task test_init( |
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64 | rtems_task_argument argument |
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65 | ) |
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66 | { |
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67 | uint32_t index; |
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68 | rtems_task_entry task_entry; |
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69 | rtems_task_priority priority; |
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70 | rtems_id task_id; |
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71 | rtems_status_code status; |
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72 | |
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73 | /* As each task is started, it preempts this task and |
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74 | * performs a blocking rtems_message_queue_receive. Upon completion of |
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75 | * this loop all created tasks are blocked. |
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76 | */ |
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77 | |
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78 | status = rtems_message_queue_create( |
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79 | rtems_build_name( 'M', 'Q', '1', ' ' ), |
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80 | OPERATION_COUNT, |
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81 | MESSAGE_SIZE, |
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82 | RTEMS_DEFAULT_ATTRIBUTES, |
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83 | &Queue_id |
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84 | ); |
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85 | directive_failed( status, "rtems_message_queue_create" ); |
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86 | |
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87 | priority = 250; |
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88 | |
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89 | for( index = 0; index < OPERATION_COUNT ; index++ ) { |
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90 | status = rtems_task_create( |
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91 | rtems_build_name( 'T', 'I', 'M', 'E' ), |
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92 | priority, |
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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 |
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97 | ); |
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98 | directive_failed( status, "rtems_task_create LOOP" ); |
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99 | |
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100 | priority--; |
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101 | |
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102 | if ( index==OPERATION_COUNT-1 ) task_entry = High_task; |
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103 | else task_entry = Middle_tasks; |
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104 | |
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105 | status = rtems_task_start( task_id, task_entry, 0 ); |
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106 | directive_failed( status, "rtems_task_start LOOP" ); |
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107 | } |
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108 | |
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109 | Timer_initialize(); |
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110 | (void) rtems_message_queue_send( Queue_id, Buffer, MESSAGE_SIZE ); |
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111 | } |
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112 | |
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113 | rtems_task Middle_tasks( |
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114 | rtems_task_argument argument |
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115 | ) |
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116 | { |
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117 | size_t size; |
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118 | |
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119 | (void) rtems_message_queue_receive( |
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120 | Queue_id, |
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121 | (long (*)[4]) Buffer, |
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122 | &size, |
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123 | RTEMS_DEFAULT_OPTIONS, |
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124 | RTEMS_NO_TIMEOUT |
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125 | ); |
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126 | |
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127 | (void) rtems_message_queue_send( Queue_id, (long (*)[4]) Buffer, size ); |
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128 | } |
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129 | |
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130 | rtems_task High_task( |
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131 | rtems_task_argument argument |
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132 | ) |
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133 | { |
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134 | size_t size; |
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135 | |
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136 | (void) rtems_message_queue_receive( |
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137 | Queue_id, |
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138 | (long (*)[4]) Buffer, |
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139 | &size, |
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140 | RTEMS_DEFAULT_OPTIONS, |
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141 | RTEMS_NO_TIMEOUT |
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142 | ); |
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143 | |
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144 | end_time = Read_timer(); |
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145 | |
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146 | put_time( |
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147 | "rtems_message_queue_send: task readied -- preempts caller", |
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148 | end_time, |
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149 | OPERATION_COUNT, |
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150 | 0, |
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151 | CALLING_OVERHEAD_MESSAGE_QUEUE_SEND |
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152 | ); |
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153 | |
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154 | puts( "*** END OF TEST 11 ***" ); |
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155 | rtems_test_exit( 0 ); |
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156 | } |
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