1 | /* |
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2 | * Copyright (c) 2013 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Dornierstr. 4 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <rtems@embedded-brains.de> |
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9 | * |
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10 | * Redistribution and use in source and binary forms, with or without |
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11 | * modification, are permitted provided that the following conditions |
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12 | * are met: |
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13 | * 1. Redistributions of source code must retain the above copyright |
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14 | * notice, this list of conditions and the following disclaimer. |
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15 | * 2. Redistributions in binary form must reproduce the above copyright |
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16 | * notice, this list of conditions and the following disclaimer in the |
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17 | * documentation and/or other materials provided with the distribution. |
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18 | * |
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19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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29 | * SUCH DAMAGE. |
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30 | */ |
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31 | |
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32 | #include <machine/rtems-bsd-kernel-space.h> |
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33 | |
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34 | #include <rtems/bsd/sys/param.h> |
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35 | #include <rtems/bsd/sys/types.h> |
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36 | #include <sys/systm.h> |
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37 | #include <rtems/bsd/sys/lock.h> |
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38 | #include <sys/rwlock.h> |
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39 | |
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40 | #include <assert.h> |
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41 | #include <stdio.h> |
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42 | #include <stdlib.h> |
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43 | #include <string.h> |
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44 | |
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45 | #include <rtems/libcsupport.h> |
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46 | #include <rtems.h> |
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47 | |
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48 | #define TEST_NAME "LIBBSD RWLOCK 1" |
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49 | |
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50 | #define PRIO_MASTER 2 |
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51 | |
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52 | #define PRIO_WORKER 1 |
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53 | |
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54 | #define EVENT_RLOCK RTEMS_EVENT_0 |
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55 | |
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56 | #define EVENT_WLOCK RTEMS_EVENT_1 |
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57 | |
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58 | #define EVENT_TRY_RLOCK RTEMS_EVENT_2 |
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59 | |
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60 | #define EVENT_TRY_WLOCK RTEMS_EVENT_3 |
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61 | |
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62 | #define EVENT_UNLOCK RTEMS_EVENT_4 |
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63 | |
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64 | #define EVENT_SLEEP RTEMS_EVENT_5 |
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65 | |
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66 | typedef struct { |
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67 | struct rwlock rw; |
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68 | bool done; |
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69 | int rv; |
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70 | int timo; |
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71 | rtems_id worker_task; |
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72 | } test_context; |
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73 | |
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74 | static test_context test_instance; |
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75 | |
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76 | static void |
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77 | set_self_prio(rtems_task_priority prio) |
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78 | { |
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79 | rtems_status_code sc; |
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80 | |
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81 | sc = rtems_task_set_priority(RTEMS_SELF, prio, &prio); |
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82 | assert(sc == RTEMS_SUCCESSFUL); |
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83 | } |
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84 | |
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85 | static void |
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86 | worker_task(rtems_task_argument arg) |
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87 | { |
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88 | test_context *ctx = (test_context *) arg; |
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89 | struct rwlock *rw = &ctx->rw; |
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90 | |
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91 | while (true) { |
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92 | rtems_status_code sc; |
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93 | rtems_event_set events; |
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94 | |
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95 | sc = rtems_event_receive( |
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96 | RTEMS_ALL_EVENTS, |
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97 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
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98 | RTEMS_NO_TIMEOUT, |
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99 | &events |
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100 | ); |
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101 | assert(sc == RTEMS_SUCCESSFUL); |
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102 | |
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103 | if ((events & EVENT_RLOCK) != 0) { |
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104 | rw_rlock(rw); |
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105 | ctx->done = true; |
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106 | } |
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107 | |
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108 | if ((events & EVENT_WLOCK) != 0) { |
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109 | rw_wlock(rw); |
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110 | ctx->done = true; |
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111 | } |
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112 | |
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113 | if ((events & EVENT_TRY_RLOCK) != 0) { |
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114 | ctx->rv = rw_try_rlock(rw); |
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115 | ctx->done = true; |
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116 | } |
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117 | |
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118 | if ((events & EVENT_TRY_WLOCK) != 0) { |
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119 | ctx->rv = rw_try_wlock(rw); |
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120 | ctx->done = true; |
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121 | } |
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122 | |
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123 | if ((events & EVENT_UNLOCK) != 0) { |
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124 | rw_unlock(rw); |
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125 | ctx->done = true; |
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126 | } |
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127 | |
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128 | if ((events & EVENT_SLEEP) != 0) { |
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129 | ctx->rv = rw_sleep(ctx, rw, 0, "worker", ctx->timo); |
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130 | ctx->done = true; |
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131 | } |
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132 | } |
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133 | } |
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134 | |
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135 | static void |
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136 | send_events(test_context *ctx, rtems_event_set events) |
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137 | { |
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138 | rtems_status_code sc; |
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139 | |
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140 | sc = rtems_event_send(ctx->worker_task, events); |
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141 | assert(sc == RTEMS_SUCCESSFUL); |
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142 | } |
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143 | |
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144 | static void |
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145 | start_worker(test_context *ctx) |
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146 | { |
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147 | rtems_status_code sc; |
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148 | |
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149 | sc = rtems_task_create( |
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150 | rtems_build_name('W', 'O', 'R', 'K'), |
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151 | PRIO_WORKER, |
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152 | RTEMS_MINIMUM_STACK_SIZE, |
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153 | RTEMS_DEFAULT_MODES, |
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154 | RTEMS_FLOATING_POINT, |
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155 | &ctx->worker_task |
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156 | ); |
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157 | assert(sc == RTEMS_SUCCESSFUL); |
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158 | |
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159 | sc = rtems_task_start( |
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160 | ctx->worker_task, |
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161 | worker_task, |
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162 | (rtems_task_argument) ctx |
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163 | ); |
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164 | assert(sc == RTEMS_SUCCESSFUL); |
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165 | } |
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166 | |
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167 | static void |
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168 | delete_worker(test_context *ctx) |
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169 | { |
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170 | rtems_status_code sc; |
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171 | |
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172 | sc = rtems_task_delete(ctx->worker_task); |
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173 | assert(sc == RTEMS_SUCCESSFUL); |
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174 | } |
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175 | |
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176 | static void |
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177 | test_rw_non_recursive(test_context *ctx) |
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178 | { |
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179 | struct rwlock *rw = &ctx->rw; |
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180 | int ok; |
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181 | |
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182 | puts("test rw non-recursive"); |
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183 | |
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184 | assert(!rw_initialized(rw)); |
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185 | rw_init(rw, "test"); |
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186 | assert(rw_initialized(rw)); |
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187 | |
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188 | rw_rlock(rw); |
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189 | /* FIXME: We use a mutex implementation */ |
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190 | assert(rw_wowned(rw)); |
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191 | /* FIXME: We always allow recursion */ |
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192 | rw_rlock(rw); |
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193 | rw_runlock(rw); |
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194 | rw_runlock(rw); |
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195 | |
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196 | rw_rlock(rw); |
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197 | rw_unlock(rw); |
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198 | |
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199 | rw_rlock(rw); |
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200 | ok = rw_try_upgrade(rw); |
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201 | assert(ok != 0); |
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202 | assert(rw_wowned(rw)); |
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203 | rw_wunlock(rw); |
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204 | |
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205 | rw_rlock(rw); |
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206 | ok = rw_try_upgrade(rw); |
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207 | assert(ok != 0); |
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208 | assert(rw_wowned(rw)); |
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209 | rw_unlock(rw); |
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210 | |
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211 | rw_rlock(rw); |
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212 | ok = rw_try_upgrade(rw); |
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213 | assert(ok != 0); |
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214 | assert(rw_wowned(rw)); |
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215 | rw_downgrade(rw); |
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216 | /* FIXME: We use a mutex implementation */ |
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217 | assert(rw_wowned(rw)); |
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218 | rw_runlock(rw); |
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219 | |
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220 | rw_rlock(rw); |
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221 | ok = rw_try_upgrade(rw); |
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222 | assert(ok != 0); |
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223 | assert(rw_wowned(rw)); |
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224 | rw_downgrade(rw); |
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225 | /* FIXME: We use a mutex implementation */ |
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226 | assert(rw_wowned(rw)); |
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227 | rw_unlock(rw); |
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228 | |
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229 | rw_wlock(rw); |
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230 | assert(rw_wowned(rw)); |
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231 | /* FIXME: We always allow recursion */ |
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232 | rw_wlock(rw); |
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233 | rw_wunlock(rw); |
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234 | rw_wunlock(rw); |
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235 | |
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236 | rw_wlock(rw); |
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237 | rw_unlock(rw); |
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238 | |
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239 | ok = rw_try_rlock(rw); |
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240 | assert(ok != 0); |
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241 | rw_unlock(rw); |
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242 | |
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243 | ok = rw_try_wlock(rw); |
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244 | assert(ok != 0); |
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245 | rw_unlock(rw); |
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246 | |
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247 | rw_destroy(rw); |
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248 | } |
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249 | |
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250 | static void |
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251 | test_rw_recursive(test_context *ctx) |
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252 | { |
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253 | struct rwlock *rw = &ctx->rw; |
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254 | |
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255 | puts("test rw recursive"); |
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256 | |
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257 | assert(!rw_initialized(rw)); |
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258 | rw_init_flags(rw, "test", RW_RECURSE); |
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259 | assert(rw_initialized(rw)); |
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260 | |
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261 | rw_rlock(rw); |
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262 | rw_rlock(rw); |
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263 | rw_runlock(rw); |
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264 | rw_runlock(rw); |
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265 | |
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266 | rw_wlock(rw); |
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267 | rw_wlock(rw); |
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268 | rw_wunlock(rw); |
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269 | rw_wunlock(rw); |
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270 | |
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271 | rw_destroy(rw); |
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272 | } |
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273 | |
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274 | static void |
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275 | test_rw_try_rlock(test_context *ctx) |
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276 | { |
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277 | struct rwlock *rw = &ctx->rw; |
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278 | |
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279 | puts("test rw try rlock"); |
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280 | |
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281 | rw_init(rw, "test"); |
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282 | |
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283 | rw_rlock(rw); |
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284 | /* FIXME: We use a mutex implementation */ |
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285 | ctx->done = false; |
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286 | ctx->rv = 1; |
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287 | send_events(ctx, EVENT_TRY_RLOCK); |
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288 | assert(ctx->done); |
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289 | assert(ctx->rv == 0); |
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290 | rw_unlock(rw); |
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291 | |
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292 | rw_wlock(rw); |
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293 | ctx->done = false; |
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294 | ctx->rv = 1; |
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295 | send_events(ctx, EVENT_TRY_RLOCK); |
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296 | assert(ctx->done); |
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297 | assert(ctx->rv == 0); |
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298 | rw_unlock(rw); |
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299 | |
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300 | rw_destroy(rw); |
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301 | } |
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302 | |
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303 | static void |
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304 | test_rw_try_wlock(test_context *ctx) |
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305 | { |
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306 | struct rwlock *rw = &ctx->rw; |
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307 | |
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308 | puts("test rw try wlock"); |
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309 | |
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310 | rw_init(rw, "test"); |
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311 | |
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312 | rw_rlock(rw); |
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313 | ctx->done = false; |
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314 | ctx->rv = 1; |
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315 | send_events(ctx, EVENT_TRY_WLOCK); |
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316 | assert(ctx->done); |
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317 | assert(ctx->rv == 0); |
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318 | rw_unlock(rw); |
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319 | |
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320 | rw_wlock(rw); |
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321 | ctx->done = false; |
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322 | ctx->rv = 1; |
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323 | send_events(ctx, EVENT_TRY_WLOCK); |
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324 | assert(ctx->done); |
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325 | assert(ctx->rv == 0); |
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326 | rw_unlock(rw); |
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327 | |
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328 | rw_destroy(rw); |
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329 | } |
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330 | |
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331 | static void |
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332 | test_rw_rlock(test_context *ctx) |
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333 | { |
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334 | struct rwlock *rw = &ctx->rw; |
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335 | |
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336 | puts("test rw rlock"); |
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337 | |
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338 | rw_init(rw, "test"); |
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339 | |
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340 | rw_rlock(rw); |
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341 | /* FIXME: We use a mutex implementation */ |
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342 | ctx->done = false; |
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343 | send_events(ctx, EVENT_RLOCK); |
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344 | assert(!ctx->done); |
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345 | rw_unlock(rw); |
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346 | assert(ctx->done); |
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347 | ctx->done = false; |
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348 | send_events(ctx, EVENT_UNLOCK); |
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349 | assert(ctx->done); |
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350 | |
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351 | rw_wlock(rw); |
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352 | ctx->done = false; |
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353 | send_events(ctx, EVENT_RLOCK); |
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354 | assert(!ctx->done); |
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355 | rw_unlock(rw); |
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356 | assert(ctx->done); |
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357 | ctx->done = false; |
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358 | send_events(ctx, EVENT_UNLOCK); |
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359 | assert(ctx->done); |
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360 | |
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361 | rw_destroy(rw); |
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362 | } |
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363 | |
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364 | static void |
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365 | test_rw_wlock(test_context *ctx) |
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366 | { |
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367 | struct rwlock *rw = &ctx->rw; |
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368 | |
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369 | puts("test rw rlock"); |
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370 | |
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371 | rw_init(rw, "test"); |
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372 | |
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373 | rw_rlock(rw); |
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374 | ctx->done = false; |
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375 | send_events(ctx, EVENT_WLOCK); |
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376 | assert(!ctx->done); |
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377 | rw_unlock(rw); |
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378 | assert(ctx->done); |
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379 | ctx->done = false; |
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380 | send_events(ctx, EVENT_UNLOCK); |
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381 | assert(ctx->done); |
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382 | |
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383 | rw_wlock(rw); |
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384 | ctx->done = false; |
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385 | send_events(ctx, EVENT_WLOCK); |
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386 | assert(!ctx->done); |
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387 | rw_unlock(rw); |
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388 | assert(ctx->done); |
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389 | ctx->done = false; |
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390 | send_events(ctx, EVENT_UNLOCK); |
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391 | assert(ctx->done); |
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392 | |
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393 | rw_destroy(rw); |
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394 | } |
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395 | |
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396 | static void |
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397 | test_rw_sleep_with_rlock(test_context *ctx) |
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398 | { |
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399 | struct rwlock *rw = &ctx->rw; |
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400 | |
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401 | puts("test rw sleep with rlock"); |
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402 | |
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403 | rw_init(rw, "test"); |
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404 | |
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405 | ctx->done = false; |
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406 | send_events(ctx, EVENT_RLOCK); |
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407 | assert(ctx->done); |
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408 | |
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409 | ctx->done = false; |
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410 | ctx->timo = 0; |
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411 | send_events(ctx, EVENT_SLEEP); |
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412 | assert(!ctx->done); |
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413 | |
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414 | rw_rlock(rw); |
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415 | wakeup(ctx); |
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416 | /* FIXME: We use a mutex implementation */ |
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417 | assert(!ctx->done); |
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418 | rw_unlock(rw); |
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419 | /* FIXME: We use a mutex implementation */ |
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420 | assert(ctx->done); |
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421 | |
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422 | ctx->done = false; |
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423 | send_events(ctx, EVENT_UNLOCK); |
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424 | assert(ctx->done); |
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425 | |
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426 | rw_destroy(rw); |
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427 | } |
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428 | |
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429 | static void |
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430 | test_rw_sleep_with_wlock(test_context *ctx) |
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431 | { |
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432 | struct rwlock *rw = &ctx->rw; |
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433 | |
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434 | puts("test rw sleep with wlock"); |
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435 | |
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436 | rw_init(rw, "test"); |
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437 | |
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438 | ctx->done = false; |
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439 | send_events(ctx, EVENT_WLOCK); |
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440 | assert(ctx->done); |
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441 | |
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442 | ctx->done = false; |
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443 | ctx->timo = 0; |
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444 | send_events(ctx, EVENT_SLEEP); |
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445 | assert(!ctx->done); |
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446 | |
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447 | rw_rlock(rw); |
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448 | wakeup(ctx); |
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449 | assert(!ctx->done); |
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450 | rw_unlock(rw); |
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451 | assert(ctx->done); |
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452 | |
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453 | ctx->done = false; |
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454 | send_events(ctx, EVENT_UNLOCK); |
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455 | assert(ctx->done); |
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456 | |
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457 | rw_destroy(rw); |
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458 | } |
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459 | |
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460 | static void |
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461 | test_rw_sleep_timeout(test_context *ctx) |
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462 | { |
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463 | struct rwlock *rw = &ctx->rw; |
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464 | rtems_status_code sc; |
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465 | |
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466 | puts("test rw sleep timeout"); |
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467 | |
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468 | rw_init(rw, "test"); |
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469 | |
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470 | ctx->done = false; |
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471 | send_events(ctx, EVENT_RLOCK); |
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472 | assert(ctx->done); |
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473 | |
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474 | ctx->done = false; |
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475 | ctx->timo = 2; |
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476 | send_events(ctx, EVENT_SLEEP); |
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477 | assert(!ctx->done); |
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478 | |
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479 | sc = rtems_task_wake_after(ctx->timo); |
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480 | assert(sc == RTEMS_SUCCESSFUL); |
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481 | |
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482 | assert(ctx->done); |
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483 | |
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484 | ctx->done = false; |
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485 | send_events(ctx, EVENT_UNLOCK); |
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486 | assert(ctx->done); |
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487 | |
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488 | rw_destroy(rw); |
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489 | } |
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490 | |
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491 | static void |
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492 | alloc_basic_resources(void) |
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493 | { |
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494 | curthread; |
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495 | } |
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496 | |
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497 | static void |
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498 | test_main(void) |
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499 | { |
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500 | rtems_resource_snapshot snapshot_0; |
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501 | rtems_resource_snapshot snapshot_1; |
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502 | |
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503 | test_context *ctx = &test_instance; |
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504 | |
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505 | alloc_basic_resources(); |
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506 | |
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507 | rtems_resource_snapshot_take(&snapshot_0); |
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508 | |
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509 | set_self_prio(PRIO_MASTER); |
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510 | start_worker(ctx); |
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511 | |
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512 | rtems_resource_snapshot_take(&snapshot_1); |
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513 | |
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514 | test_rw_non_recursive(ctx); |
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515 | test_rw_recursive(ctx); |
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516 | test_rw_try_rlock(ctx); |
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517 | test_rw_try_wlock(ctx); |
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518 | test_rw_rlock(ctx); |
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519 | test_rw_wlock(ctx); |
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520 | |
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521 | assert(rtems_resource_snapshot_check(&snapshot_1)); |
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522 | |
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523 | test_rw_sleep_with_rlock(ctx); |
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524 | test_rw_sleep_with_wlock(ctx); |
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525 | test_rw_sleep_timeout(ctx); |
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526 | |
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527 | delete_worker(ctx); |
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528 | |
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529 | assert(rtems_resource_snapshot_check(&snapshot_0)); |
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530 | |
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531 | exit(0); |
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532 | } |
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533 | |
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534 | #include <rtems/bsd/test/default-init.h> |
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