1 | /* SPDX-License-Identifier: BSD-2-Clause */ |
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2 | |
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3 | /* |
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4 | * COPYRIGHT (c) 1989-2013. |
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5 | * On-Line Applications Research Corporation (OAR). |
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6 | * |
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7 | * Redistribution and use in source and binary forms, with or without |
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8 | * modification, are permitted provided that the following conditions |
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9 | * are met: |
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10 | * 1. Redistributions of source code must retain the above copyright |
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11 | * notice, this list of conditions and the following disclaimer. |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #ifdef HAVE_CONFIG_H |
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30 | #include "config.h" |
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31 | #endif |
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32 | #include <errno.h> |
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33 | #include <timesys.h> |
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34 | #include <tmacros.h> |
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35 | #include <pthread.h> |
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36 | #include <sched.h> |
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37 | #include <rtems/btimer.h> |
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38 | #include "test_support.h" |
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39 | |
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40 | const char rtems_test_name[] = "PSXTMRWLOCK 02"; |
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41 | |
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42 | /* forward declarations to avoid warnings */ |
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43 | void *POSIX_Init(void *argument); |
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44 | void *Middle(void *argument); |
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45 | void *Low(void *argument); |
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46 | |
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47 | pthread_rwlock_t rwlock; |
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48 | |
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49 | void *Low( |
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50 | void *argument |
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51 | ) |
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52 | { |
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53 | benchmark_timer_t end_time; |
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54 | |
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55 | /* |
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56 | * Now we have finished the thread startup overhead, |
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57 | * so let other threads run. When we return, we can |
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58 | * finish the benchmark. |
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59 | */ |
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60 | sched_yield(); |
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61 | /* let other threads run */ |
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62 | |
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63 | end_time = benchmark_timer_read(); |
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64 | |
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65 | put_time( |
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66 | "pthread_rwlock_rdlock: not available blocks", |
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67 | end_time, |
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68 | OPERATION_COUNT, |
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69 | 0, |
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70 | 0 |
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71 | ); |
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72 | |
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73 | TEST_END(); |
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74 | |
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75 | rtems_test_exit( 0 ); |
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76 | return NULL; |
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77 | } |
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78 | |
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79 | void *Middle( |
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80 | void *argument |
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81 | ) |
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82 | { |
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83 | int status; |
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84 | |
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85 | /* |
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86 | * Now we have finished the thread startup overhead, |
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87 | * so let other threads run. When we return, we can |
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88 | * finish the benchmark. |
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89 | */ |
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90 | sched_yield(); |
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91 | /* let other threads run */ |
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92 | /* this read lock operation will be blocked |
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93 | * cause a write operation has the lock */ |
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94 | status = pthread_rwlock_rdlock(&rwlock); |
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95 | rtems_test_assert( status == 0 ); |
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96 | return NULL; |
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97 | } |
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98 | |
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99 | void *POSIX_Init( |
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100 | void *argument |
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101 | ) |
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102 | { |
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103 | int i; |
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104 | int status; |
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105 | pthread_t threadId; |
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106 | pthread_rwlockattr_t attr; |
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107 | |
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108 | TEST_BEGIN(); |
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109 | |
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110 | for ( i=0 ; i < OPERATION_COUNT - 1 ; i++ ) { |
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111 | status = pthread_create( &threadId, NULL, Middle, NULL ); |
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112 | rtems_test_assert( !status ); |
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113 | } |
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114 | |
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115 | status = pthread_create( &threadId, NULL, Low, NULL ); |
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116 | rtems_test_assert( !status ); |
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117 | |
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118 | /* |
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119 | * Deliberately create the rwlock after the threads. This way if the |
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120 | * threads do run before we intend, they will get an error. |
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121 | */ |
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122 | status = pthread_rwlockattr_init( &attr ); |
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123 | rtems_test_assert( status == 0 ); |
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124 | status = pthread_rwlock_init( &rwlock, &attr ); |
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125 | rtems_test_assert( status == 0 ); |
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126 | /* |
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127 | * Let the other threads start so the thread startup overhead, |
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128 | * is accounted for. When we return, we can start the benchmark. |
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129 | */ |
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130 | sched_yield(); |
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131 | /* let other threads run */ |
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132 | |
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133 | /* start the timer and switch through all the other tasks */ |
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134 | benchmark_timer_initialize(); |
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135 | /* write lock operation */ |
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136 | status = pthread_rwlock_wrlock(&rwlock); |
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137 | rtems_test_assert( status == 0 ); |
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138 | return NULL; |
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139 | } |
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140 | |
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141 | /* configuration information */ |
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142 | |
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143 | #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER |
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144 | #define CONFIGURE_APPLICATION_NEEDS_TIMER_DRIVER |
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145 | |
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146 | #define CONFIGURE_MAXIMUM_POSIX_THREADS OPERATION_COUNT + 2 |
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147 | #define CONFIGURE_POSIX_INIT_THREAD_TABLE |
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148 | |
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149 | #define CONFIGURE_INIT |
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150 | |
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151 | #include <rtems/confdefs.h> |
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152 | /* end of file */ |
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