1 | /* Test1 |
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2 | * |
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3 | * This test uses creates a number of tasks so the capture engine |
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4 | * can show a trace. |
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5 | * |
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6 | * Input parameters: NONE |
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7 | * |
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8 | * Output parameters: NONE |
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9 | * |
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10 | * COPYRIGHT (c) 1989-1997. |
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11 | * On-Line Applications Research Corporation (OAR). |
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12 | * |
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13 | * The license and distribution terms for this file may in |
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14 | * the file LICENSE in this distribution or at |
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15 | * http://www.rtems.org/license/LICENSE. |
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16 | */ |
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17 | |
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18 | #ifdef HAVE_CONFIG_H |
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19 | #include "config.h" |
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20 | #endif |
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21 | |
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22 | #include "system.h" |
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23 | #include <stdio.h> |
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24 | #include <stdlib.h> |
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25 | |
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26 | #include <rtems.h> |
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27 | |
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28 | #if !BSP_SMALL_MEMORY |
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29 | static volatile int capture_CT1a_deleted; |
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30 | static volatile int capture_CT1b_deleted; |
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31 | static volatile int capture_CT1c_deleted; |
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32 | |
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33 | static void |
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34 | capture_wait (uint32_t period) |
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35 | { |
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36 | rtems_task_wake_after (RTEMS_MICROSECONDS_TO_TICKS (period * 1000)); |
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37 | } |
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38 | |
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39 | /* |
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40 | * CT1a: Claim the mutex and then wait a while then wake |
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41 | * up and release the mutex. While this task waits with |
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42 | * the mutex another higher priority task is started that |
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43 | * just loops using all the processing time. It is not until |
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44 | * another even higher priority thread blocks on the mutex |
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45 | * does this task get raised to that priority and so |
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46 | * releases the mutex. This will allow us to capture the |
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47 | * action of priority inversion. |
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48 | */ |
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49 | static void |
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50 | capture_CT1a (rtems_task_argument arg) |
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51 | { |
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52 | rtems_id mutex = (rtems_id) arg; |
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53 | rtems_status_code sc; |
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54 | |
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55 | sc = rtems_semaphore_obtain (mutex, RTEMS_WAIT, 0); |
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56 | |
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57 | if (sc != RTEMS_SUCCESSFUL) |
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58 | fprintf (stdout, "error: CT1a: mutex obtain: %s\n", |
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59 | rtems_status_text (sc)); |
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60 | |
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61 | capture_wait (2500); |
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62 | |
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63 | sc = rtems_semaphore_release (mutex); |
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64 | |
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65 | if (sc != RTEMS_SUCCESSFUL) |
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66 | fprintf (stdout, "error: CT1a: mutex release: %s\n", |
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67 | rtems_status_text (sc)); |
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68 | |
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69 | capture_CT1a_deleted = 1; |
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70 | |
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71 | rtems_task_delete (RTEMS_SELF); |
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72 | } |
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73 | |
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74 | static void |
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75 | capture_CT1b (rtems_task_argument arg) |
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76 | { |
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77 | volatile int i; |
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78 | |
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79 | while (!capture_CT1c_deleted) |
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80 | i++; |
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81 | |
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82 | capture_CT1b_deleted = 1; |
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83 | |
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84 | rtems_task_delete (RTEMS_SELF); |
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85 | } |
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86 | |
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87 | static void |
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88 | capture_CT1c (rtems_task_argument arg) |
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89 | { |
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90 | rtems_id mutex = (rtems_id) arg; |
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91 | rtems_status_code sc; |
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92 | |
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93 | sc = rtems_semaphore_obtain (mutex, RTEMS_WAIT, 0); |
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94 | |
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95 | if (sc != RTEMS_SUCCESSFUL) |
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96 | fprintf (stdout, "error: CT1c: mutex obtain: %s\n", |
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97 | rtems_status_text (sc)); |
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98 | |
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99 | capture_wait (500); |
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100 | |
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101 | sc = rtems_semaphore_release (mutex); |
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102 | |
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103 | if (sc != RTEMS_SUCCESSFUL) |
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104 | fprintf (stdout, "error: CT1c: mutex release: %s\n", |
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105 | rtems_status_text (sc)); |
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106 | |
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107 | capture_CT1c_deleted = 1; |
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108 | |
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109 | rtems_task_delete (RTEMS_SELF); |
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110 | } |
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111 | |
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112 | void capture_test_1 () |
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113 | { |
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114 | rtems_status_code sc; |
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115 | rtems_name name; |
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116 | rtems_id id[3]; |
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117 | rtems_id mutex; |
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118 | int loops; |
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119 | |
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120 | capture_CT1a_deleted = 0; |
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121 | capture_CT1b_deleted = 0; |
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122 | capture_CT1c_deleted = 0; |
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123 | |
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124 | name = rtems_build_name('C', 'T', 'm', '1'); |
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125 | |
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126 | sc = rtems_semaphore_create (name, 1, |
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127 | RTEMS_PRIORITY | RTEMS_BINARY_SEMAPHORE | |
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128 | RTEMS_INHERIT_PRIORITY, |
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129 | 0, &mutex); |
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130 | |
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131 | if (sc != RTEMS_SUCCESSFUL) |
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132 | { |
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133 | fprintf (stdout, "error: Test 1: cannot mutex: %s\n", |
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134 | rtems_status_text (sc)); |
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135 | return; |
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136 | } |
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137 | |
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138 | name = rtems_build_name('C', 'T', '1', 'a'); |
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139 | |
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140 | sc = rtems_task_create (name, 102, 2 * 1024, |
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141 | RTEMS_NO_FLOATING_POINT | RTEMS_LOCAL, |
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142 | RTEMS_PREEMPT | RTEMS_TIMESLICE | RTEMS_NO_ASR, |
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143 | &id[0]); |
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144 | |
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145 | if (sc != RTEMS_SUCCESSFUL) |
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146 | { |
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147 | fprintf (stdout, "error: Test 1: cannot create CT1a: %s\n", |
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148 | rtems_status_text (sc)); |
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149 | rtems_semaphore_delete (mutex); |
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150 | return; |
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151 | } |
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152 | |
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153 | sc = rtems_task_start (id[0], capture_CT1a, (rtems_task_argument) mutex); |
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154 | |
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155 | if (sc != RTEMS_SUCCESSFUL) |
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156 | { |
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157 | fprintf (stdout, "error: Test 1: cannot start CT1a: %s\n", |
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158 | rtems_status_text (sc)); |
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159 | rtems_task_delete (id[0]); |
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160 | rtems_semaphore_delete (mutex); |
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161 | return; |
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162 | } |
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163 | |
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164 | capture_wait (1000); |
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165 | |
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166 | name = rtems_build_name('C', 'T', '1', 'b'); |
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167 | |
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168 | sc = rtems_task_create (name, 101, 2 * 1024, |
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169 | RTEMS_NO_FLOATING_POINT | RTEMS_LOCAL, |
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170 | RTEMS_PREEMPT | RTEMS_TIMESLICE | RTEMS_NO_ASR, |
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171 | &id[1]); |
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172 | |
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173 | if (sc != RTEMS_SUCCESSFUL) |
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174 | { |
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175 | fprintf (stdout, "error: Test 1: cannot create CT1b: %s\n", |
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176 | rtems_status_text (sc)); |
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177 | rtems_task_delete (id[0]); |
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178 | rtems_semaphore_delete (mutex); |
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179 | return; |
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180 | } |
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181 | |
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182 | sc = rtems_task_start (id[1], capture_CT1b, 0); |
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183 | |
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184 | if (sc != RTEMS_SUCCESSFUL) |
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185 | { |
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186 | fprintf (stdout, "error: Test 1: cannot start CT1b: %s\n", |
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187 | rtems_status_text (sc)); |
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188 | rtems_task_delete (id[1]); |
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189 | rtems_task_delete (id[0]); |
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190 | rtems_semaphore_delete (mutex); |
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191 | return; |
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192 | } |
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193 | |
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194 | capture_wait (1000); |
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195 | |
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196 | name = rtems_build_name('C', 'T', '1', 'c'); |
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197 | |
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198 | sc = rtems_task_create (name, 100, 2 * 1024, |
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199 | RTEMS_NO_FLOATING_POINT | RTEMS_LOCAL, |
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200 | RTEMS_PREEMPT | RTEMS_TIMESLICE | RTEMS_NO_ASR, |
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201 | &id[2]); |
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202 | |
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203 | if (sc != RTEMS_SUCCESSFUL) |
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204 | { |
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205 | fprintf (stdout, "error: Test 1: cannot create CT1c: %s\n", |
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206 | rtems_status_text (sc)); |
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207 | rtems_task_delete (id[1]); |
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208 | rtems_task_delete (id[0]); |
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209 | rtems_semaphore_delete (mutex); |
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210 | return; |
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211 | } |
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212 | |
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213 | sc = rtems_task_start (id[2], capture_CT1c, (rtems_task_argument) mutex); |
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214 | |
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215 | if (sc != RTEMS_SUCCESSFUL) |
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216 | { |
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217 | fprintf (stdout, "error: Test 1: cannot start CT1c: %s\n", |
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218 | rtems_status_text (sc)); |
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219 | rtems_task_delete (id[2]); |
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220 | rtems_task_delete (id[1]); |
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221 | rtems_task_delete (id[0]); |
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222 | rtems_semaphore_delete (mutex); |
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223 | return; |
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224 | } |
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225 | |
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226 | loops = 15; |
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227 | |
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228 | while (!(capture_CT1a_deleted || capture_CT1b_deleted || |
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229 | capture_CT1c_deleted) && loops) |
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230 | { |
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231 | loops--; |
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232 | capture_wait (1000); |
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233 | } |
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234 | |
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235 | if (!loops) |
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236 | { |
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237 | fprintf (stdout, "error: Test 1: test tasks did not delete\n"); |
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238 | rtems_task_delete (id[2]); |
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239 | rtems_task_delete (id[1]); |
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240 | rtems_task_delete (id[0]); |
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241 | } |
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242 | |
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243 | sc = rtems_semaphore_delete (mutex); |
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244 | if (sc != RTEMS_SUCCESSFUL) |
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245 | fprintf (stdout, "error: Test 1: deleting the mutex: %s\n", |
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246 | rtems_status_text (sc)); |
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247 | |
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248 | } |
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249 | |
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250 | #endif /* BSP_SMALL_MEMORY */ |
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