1 | /* |
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2 | * COPYRIGHT (c) 1989-2012. |
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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.org/license/LICENSE. |
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8 | */ |
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9 | |
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10 | #ifdef HAVE_CONFIG_H |
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11 | #include "config.h" |
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12 | #endif |
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13 | |
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14 | #include <sched.h> |
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15 | #include <semaphore.h> |
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16 | #include <errno.h> |
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17 | #include <fcntl.h> |
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18 | #include <limits.h> |
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19 | #include <time.h> |
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20 | #include <tmacros.h> |
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21 | #include <pmacros.h> |
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22 | #include "test_support.h" |
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23 | |
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24 | const char rtems_test_name[] = "PSXSEM 1"; |
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25 | |
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26 | /* forward declarations to avoid warnings */ |
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27 | void *POSIX_Init(void *argument); |
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28 | |
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29 | #define MAX_SEMS 10 |
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30 | |
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31 | static void *sem_wait_task(void *arg) |
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32 | { |
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33 | sem_t *sem; |
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34 | int rv; |
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35 | |
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36 | sem = arg; |
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37 | |
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38 | rv = sem_wait( sem ); |
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39 | rtems_test_assert( rv == 0 ); |
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40 | |
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41 | errno = 0; |
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42 | rv = sem_wait( sem ); |
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43 | rtems_test_assert( rv == -1 ); |
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44 | rtems_test_assert( errno == EINVAL ); |
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45 | |
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46 | return NULL; |
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47 | } |
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48 | |
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49 | static void test_sem_wait_during_delete(void) |
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50 | { |
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51 | sem_t sem; |
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52 | int rv; |
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53 | pthread_t th; |
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54 | int eno; |
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55 | int val; |
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56 | |
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57 | rv = sem_init( &sem, 0, 1 ); |
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58 | rtems_test_assert( rv == 0 ); |
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59 | |
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60 | eno = pthread_create( &th, NULL, sem_wait_task, &sem ); |
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61 | rtems_test_assert( eno == 0 ); |
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62 | |
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63 | rv = sem_getvalue( &sem, &val ); |
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64 | rtems_test_assert( rv == 0 ); |
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65 | rtems_test_assert( val == 1 ); |
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66 | |
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67 | sched_yield(); |
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68 | |
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69 | rv = sem_getvalue( &sem, &val ); |
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70 | rtems_test_assert( rv == 0 ); |
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71 | rtems_test_assert( val == 0 ); |
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72 | |
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73 | rv = sem_destroy( &sem ); |
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74 | rtems_test_assert( rv == 0 ); |
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75 | |
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76 | eno = pthread_join( th, NULL ); |
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77 | rtems_test_assert( eno == 0 ); |
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78 | } |
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79 | |
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80 | static void test_sem_post_overflow(void) |
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81 | { |
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82 | sem_t sem; |
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83 | int rv; |
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84 | int val; |
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85 | |
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86 | rv = sem_init( &sem, 0, SEM_VALUE_MAX ); |
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87 | rtems_test_assert( rv == 0 ); |
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88 | |
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89 | rv = sem_getvalue( &sem, &val ); |
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90 | rtems_test_assert( rv == 0 ); |
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91 | rtems_test_assert( val == (int) SEM_VALUE_MAX ); |
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92 | |
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93 | errno = 0; |
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94 | rv = sem_post( &sem ); |
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95 | rtems_test_assert( rv == -1 ); |
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96 | rtems_test_assert( errno == EOVERFLOW ); |
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97 | |
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98 | rv = sem_getvalue( &sem, &val ); |
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99 | rtems_test_assert( rv == 0 ); |
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100 | rtems_test_assert( val == (int) SEM_VALUE_MAX ); |
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101 | |
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102 | rv = sem_wait( &sem ); |
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103 | rtems_test_assert( rv == 0 ); |
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104 | |
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105 | rv = sem_post( &sem ); |
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106 | rtems_test_assert( rv == 0 ); |
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107 | |
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108 | rv = sem_destroy( &sem ); |
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109 | rtems_test_assert( rv == 0 ); |
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110 | } |
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111 | |
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112 | static void test_sem_init_too_large_inital_value(void) |
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113 | { |
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114 | sem_t sem; |
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115 | int rv; |
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116 | |
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117 | errno = 0; |
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118 | rv = sem_init( &sem, 0, SEM_VALUE_MAX + 1 ); |
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119 | rtems_test_assert( rv == -1 ); |
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120 | rtems_test_assert( errno == EINVAL ); |
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121 | } |
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122 | |
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123 | void *POSIX_Init( |
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124 | void *argument |
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125 | ) |
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126 | { |
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127 | int status; |
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128 | int value; |
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129 | int i; |
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130 | sem_t sems[MAX_SEMS]; |
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131 | sem_t sem2; |
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132 | sem_t *n_sem1; |
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133 | sem_t *n_sem2; |
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134 | struct timespec waittime; |
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135 | char failure_msg[80]; |
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136 | |
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137 | TEST_BEGIN(); |
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138 | |
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139 | puts( "Init: sem_init - UNSUCCESSFUL (EINVAL)" ); |
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140 | status = sem_init(NULL, 0, 1); |
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141 | fatal_posix_service_status( status, -1, "sem_init error return status"); |
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142 | fatal_posix_service_status( errno, EINVAL, "sem_init errorno EINVAL" ); |
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143 | |
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144 | puts( "Init: sem_init - SUCCESSFUL" ); |
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145 | for (i = 0; i < MAX_SEMS; i++) { |
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146 | status = sem_init(&sems[i], 0, i); |
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147 | sprintf(failure_msg, "sem_init %d", i ); |
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148 | fatal_posix_service_status( status, 0, failure_msg); |
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149 | } |
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150 | puts( "Init: sem_init - UNSUCCESSFUL (ENOSPC)" ); |
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151 | status = sem_init(&sem2, 0, 1); |
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152 | fatal_posix_service_status( status, -1, "sem_init error return status"); |
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153 | fatal_posix_service_status( errno, ENOSPC, "sem_init errorno ENOSPC" ); |
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154 | |
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155 | puts( "Init: sem_init - UNSUCCESSFUL (ENOSYS -- pshared not supported)" ); |
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156 | status = sem_init(&sem2, 1, 1); |
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157 | fatal_posix_service_status( status, -1, "sem_init error return status"); |
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158 | fatal_posix_service_status( errno, ENOSYS, "sem_init errno set to ENOSYS"); |
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159 | |
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160 | puts( "Init: sem_getvalue - SUCCESSFUL "); |
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161 | for (i = 0; i < MAX_SEMS; i++) { |
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162 | status = sem_getvalue(&sems[i], &value); |
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163 | sprintf( failure_msg, "sem_getvalue %d", i ); |
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164 | fatal_posix_service_status( status, 0, failure_msg ); |
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165 | fatal_posix_service_status( value, i, "sem_getvalue correct value" ); |
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166 | } |
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167 | puts( "Init: sem_getvalue - UNSUCCESSFUL "); |
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168 | status = sem_getvalue(&sem2, &value); |
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169 | fatal_posix_service_status( status, -1, "sem_getvalue error return status"); |
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170 | fatal_posix_service_status( errno, EINVAL, "sem_getvalue errno EINVAL"); |
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171 | |
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172 | puts( "Init: sem_destroy - SUCCESSFUL" ); |
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173 | status = sem_destroy(&sems[0]); |
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174 | fatal_posix_service_status( status, 0, "sem_destroy semaphore 0"); |
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175 | |
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176 | puts( "Init: sem_destroy - UNSUCCESSFUL (EINVAL)" ); |
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177 | status = sem_destroy(&sem2); |
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178 | fatal_posix_service_status( status, -1, "sem_destroy error return status"); |
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179 | fatal_posix_service_status( errno, EINVAL, "sem_destroy errno EINVAL"); |
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180 | |
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181 | puts( "Init: sem_wait - SUCCESSFUL" ); |
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182 | status = sem_wait(&sems[1]); |
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183 | fatal_posix_service_status( status, 0, "sem_wait semaphore 1"); |
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184 | /* sem[1].count = 0 */ |
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185 | |
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186 | puts( "Init: sem_wait - UNSUCCESSFUL (EINVAL)" ); |
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187 | status = sem_wait(&sem2); |
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188 | fatal_posix_service_status( status, -1, "sem_wait error return status"); |
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189 | fatal_posix_service_status( errno, EINVAL, "sem_wait errno EINVAL"); |
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190 | |
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191 | puts( "Init: sem_post - SUCCESSFUL" ); |
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192 | status = sem_post(&sems[1]); |
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193 | fatal_posix_service_status( status, 0, "sem_post semaphore 1"); |
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194 | /* sem[1].count = 1 */ |
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195 | |
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196 | puts( "Init: sem_wait - SUCCESSFUL (after a sem_post)" ); |
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197 | status = sem_wait(&sems[1]); |
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198 | fatal_posix_service_status( status, 0, "sem_wait semaphore 1"); |
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199 | /* sem[1].count = 0 */ |
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200 | |
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201 | puts( "Init: sem_trywait - SUCCESSFUL" ); |
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202 | status = sem_trywait(&sems[2]); |
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203 | fatal_posix_service_status( status, 0, "sem_trywait semaphore 2"); |
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204 | /* sem[2].count = 1 */ |
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205 | |
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206 | puts( "Init: sem_trywait - UNSUCCESSFUL (EAGAIN)" ); |
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207 | status = sem_trywait(&sems[1]); |
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208 | fatal_posix_service_status( status, -1, "sem_trywait error return status"); |
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209 | fatal_posix_service_status( errno, EAGAIN, "sem_trywait errno EAGAIN"); |
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210 | /* sem[1].count = 0 */ |
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211 | |
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212 | puts( "Init: sem_trywait - UNSUCCESSFUL (EINVAL)" ); |
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213 | status = sem_trywait(&sem2); |
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214 | fatal_posix_service_status( status, -1, "sem_trywait error return status"); |
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215 | fatal_posix_service_status( errno, EINVAL, "sem_trywait errno EINVAL"); |
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216 | |
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217 | #if 0 |
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218 | status = sem_post(&sems[2]); |
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219 | fatal_posix_service_status( status, 0, "sem_post semaphore 2"); |
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220 | /* sem[2].count = 2 */ |
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221 | #else |
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222 | /* sem[2].count = 1 */ |
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223 | #endif |
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224 | |
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225 | puts( "Init: sem_timedwait - SUCCESSFUL" ); |
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226 | waittime.tv_sec = time(NULL) + 1; |
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227 | waittime.tv_nsec = 100; |
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228 | status = sem_timedwait(&sems[2], &waittime); |
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229 | fatal_posix_service_status( status, 0, "sem_timedwait semaphore 2"); |
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230 | /* sem[2].count = 0 */ |
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231 | |
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232 | puts( "Init: sem_timedwait - UNSUCCESSFUL (ETIMEDOUT)" ); |
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233 | status = sem_timedwait(&sems[2], &waittime); |
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234 | fatal_posix_service_status( status, -1, "sem_timedwait error return status"); |
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235 | fatal_posix_service_status( |
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236 | errno, ETIMEDOUT, "sem_timedwait errno ETIMEDOUT"); |
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237 | |
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238 | /* |
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239 | * To do this case, we must be blocking when we want the semaphore. |
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240 | * POSIX doesn't want you to check the error if you can get the resource. |
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241 | */ |
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242 | |
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243 | #if 1 |
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244 | puts( "Init: sem_timedwait - UNSUCCESSFUL (EINVAL) -- skipping" ); |
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245 | #else |
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246 | puts( "Init: sem_timedwait - UNSUCCESSFUL (EINVAL)" ); |
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247 | waittime.tv_sec = 0; |
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248 | waittime.tv_nsec = 0x7FFFFFFF; |
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249 | status = sem_timedwait(&sems[2], &waittime); |
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250 | fatal_posix_service_status( status, -1, "sem_timedwait error return status"); |
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251 | fatal_posix_service_status( errno, EINVAL, "sem_init errno EINVAL"); |
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252 | #endif |
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253 | |
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254 | puts( "Init: sem_post - UNSUCCESSFUL (EINVAL)" ); |
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255 | status = sem_post(&sem2); |
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256 | fatal_posix_service_status( status, -1, "sem_post error return status"); |
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257 | fatal_posix_service_status( errno, EINVAL, "sem_post errno EINVAL"); |
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258 | |
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259 | puts( "Init: sem_destroy - SUCCESSFUL" ); |
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260 | for (i = 1; i < MAX_SEMS; i++) { |
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261 | status = sem_destroy(&sems[i]); |
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262 | sprintf( failure_msg, "sem_destroy %d", i ); |
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263 | fatal_posix_service_status( status, 0, failure_msg ); |
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264 | } |
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265 | |
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266 | /* Modes are currently unsupported */ |
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267 | |
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268 | /* |
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269 | * Validate all sem_open return paths. |
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270 | */ |
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271 | |
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272 | puts( "Init: sem_open - UNSUCCESSFUL (ENAMETOOLONG)" ); |
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273 | n_sem1 = sem_open(Get_Too_Long_Name(), O_CREAT, 0777, 1 ); |
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274 | fatal_posix_sem( n_sem1, "sem_open error return status" ); |
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275 | fatal_posix_service_status( |
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276 | errno, ENAMETOOLONG, "sem_open errorno ENAMETOOLONG" ); |
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277 | |
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278 | puts( "Init: sem_open - sem1 SUCCESSFUL" ); |
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279 | n_sem1 = sem_open( "sem1",O_CREAT, 0777, 1 ); |
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280 | rtems_test_assert( n_sem1 != SEM_FAILED ); |
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281 | |
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282 | puts( "Init: sem_destroy - named sem1 - EINVAL" ); |
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283 | status = sem_destroy(n_sem1); |
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284 | fatal_posix_service_status( status, -1, "sem_destroy named semaphore"); |
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285 | fatal_posix_service_status( errno, EINVAL, "sem_destroy named semaphore"); |
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286 | |
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287 | puts( "Init: sem_open - Create an Existing sem (EEXIST)" ); |
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288 | n_sem2 = sem_open("sem1", O_CREAT | O_EXCL, 0777, 1); |
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289 | fatal_posix_sem( n_sem2, "sem_open error return status" ); |
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290 | fatal_posix_service_status( errno, EEXIST, "sem_open errno EEXIST"); |
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291 | |
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292 | puts( "Init: sem_open - Open new sem without create flag (ENOENT)" ); |
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293 | n_sem2 = sem_open("sem3", O_EXCL, 0777, 1); |
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294 | fatal_posix_sem( n_sem2, "sem_open error return status" ); |
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295 | fatal_posix_service_status( errno, ENOENT, "sem_open errno EEXIST"); |
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296 | |
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297 | /* |
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298 | * XXX - Could not hit the following errors: |
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299 | * E_POSIX_Semaphore_Create_support only fails if |
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300 | * ENOSYS - When semaphore is shared between processes. |
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301 | * ENOSPC - When out of memory. |
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302 | */ |
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303 | |
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304 | /* |
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305 | * Validate we can wait on a semaphore opened with sem_open. |
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306 | */ |
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307 | |
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308 | puts( "Init: sem_wait on sem1" ); |
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309 | status = sem_wait(n_sem1); |
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310 | fatal_posix_service_status( status, 0, "sem_wait opened semaphore"); |
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311 | |
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312 | /* |
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313 | * Validate a second open returns the same semaphore. |
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314 | */ |
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315 | |
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316 | puts( "Init: sem_open - Open an existing sem ( same id )" ); |
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317 | n_sem2 = sem_open("sem1", 0 ); |
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318 | rtems_test_assert( n_sem2 == n_sem1 ); |
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319 | |
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320 | /* |
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321 | * Unlink the semaphore, then verify an open of the same name produces a |
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322 | * different semaphore. |
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323 | */ |
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324 | |
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325 | puts( "Init: sem_unlink - sem1 SUCCESSFUL" ); |
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326 | status = sem_unlink( "sem1" ); |
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327 | fatal_posix_service_status( status, 0, "sem_unlink locked semaphore"); |
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328 | |
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329 | puts( "Init: sem_open - Reopen sem1 SUCCESSFUL with a different id" ); |
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330 | n_sem2 = sem_open( "sem1", O_CREAT | O_EXCL, 0777, 1); |
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331 | rtems_test_assert( n_sem2 != SEM_FAILED ); |
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332 | rtems_test_assert( n_sem2 != n_sem1 ); |
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333 | |
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334 | /* |
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335 | * Validate we can call close on a semaphore opened with sem_open. |
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336 | */ |
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337 | |
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338 | puts( "Init: sem_close (1) - SUCCESSFUL" ); |
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339 | status = sem_close( n_sem1 ); |
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340 | fatal_posix_service_status( status, 0, "sem_close semaphore"); |
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341 | |
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342 | /* |
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343 | * Validate it n_sem2 (the last open for sem1 name can be |
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344 | * correctly closed and unlinked. |
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345 | */ |
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346 | |
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347 | puts( "Init: sem_close (2) - SUCCESSFUL" ); |
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348 | status = sem_close( n_sem2 ); |
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349 | fatal_posix_service_status( status, 0, "sem_close semaphore"); |
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350 | |
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351 | puts( "Init: sem_unlink - sem1 (2) SUCCESSFUL" ); |
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352 | status = sem_unlink( "sem1" ); |
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353 | fatal_posix_service_status( status, 0, "sem_unlink locked semaphore"); |
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354 | |
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355 | puts( "Init: sem_close - UNSUCCESSFUL (EINVAL)" ); |
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356 | status = sem_close(n_sem2); |
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357 | fatal_posix_service_status( status, -1, "sem_close error return status"); |
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358 | fatal_posix_service_status( errno, EINVAL, "sem_close errno EINVAL"); |
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359 | |
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360 | puts( "Init: sem_unlink - UNSUCCESSFUL (ENOENT)" ); |
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361 | status = sem_unlink("sem1"); |
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362 | fatal_posix_service_status( status, -1, "sem_unlink error return status"); |
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363 | fatal_posix_service_status( errno, ENOENT, "sem_close errno EINVAL"); |
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364 | |
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365 | |
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366 | /* |
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367 | * Validate we can unlink (2) |
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368 | */ |
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369 | |
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370 | puts( "Init: sem_unlink (NULL) - EINVAL" ); |
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371 | status = sem_unlink( NULL ); |
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372 | fatal_posix_service_status( status, -1, "sem_unlink error return status"); |
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373 | fatal_posix_service_status( errno, EINVAL, "sem_unlink errno value"); |
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374 | |
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375 | puts( "Init: sem_unlink (\"\") - ENOENT" ); |
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376 | status = sem_unlink( "" ); |
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377 | fatal_posix_service_status( status, -1, "sem_unlink error return status"); |
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378 | fatal_posix_service_status( errno, ENOENT, "sem_unlink errno value"); |
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379 | |
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380 | /* |
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381 | * XXX - Cant' create location OBJECTS_ERROR or OBJECTS_REMOTE. |
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382 | * sem_close and sem_unlink. |
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383 | */ |
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384 | |
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385 | puts( "Init: sem_unlink - UNSUCCESSFUL (ENOENT)" ); |
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386 | status = sem_unlink("sem2"); |
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387 | fatal_posix_service_status( status, -1, "sem_unlink error return status"); |
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388 | fatal_posix_service_status( errno, ENOENT, "sem_unlink errno ENOENT"); |
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389 | rtems_test_assert( (status == -1) && (errno == ENOENT) ); |
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390 | |
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391 | test_sem_wait_during_delete(); |
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392 | test_sem_post_overflow(); |
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393 | test_sem_init_too_large_inital_value(); |
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394 | |
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395 | /* Try adding in unlinking before closing... (can we still open?) */ |
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396 | |
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397 | TEST_END(); |
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398 | rtems_test_exit(0); |
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399 | |
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400 | return NULL; /* just so the compiler thinks we returned something */ |
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401 | } |
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402 | |
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403 | /* configuration information */ |
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404 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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405 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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406 | |
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407 | #define CONFIGURE_POSIX_INIT_THREAD_TABLE |
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408 | |
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409 | #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION |
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410 | |
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411 | #define CONFIGURE_MAXIMUM_POSIX_THREADS 2 |
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412 | #define CONFIGURE_MAXIMUM_POSIX_SEMAPHORES MAX_SEMS |
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413 | |
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414 | #define CONFIGURE_POSIX_INIT_THREAD_TABLE |
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415 | #define CONFIGURE_POSIX_INIT_THREAD_STACK_SIZE \ |
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416 | (RTEMS_MINIMUM_STACK_SIZE * 4) |
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417 | |
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418 | #define CONFIGURE_INIT |
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419 | #include <rtems/confdefs.h> |
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