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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // NOTE(vtl): Some of these tests are inherently flaky (e.g., if run on a | |
| 6 // heavily-loaded system). Sorry. |test::EpsilonTimeout()| may be increased to | |
| 7 // increase tolerance and reduce observed flakiness (though doing so reduces the | |
| 8 // meaningfulness of the test). | |
| 9 | |
| 10 #include "mojo/edk/system/waiter_list.h" | |
| 11 | |
| 12 #include "base/threading/platform_thread.h" // For |Sleep()|. | |
| 13 #include "base/time/time.h" | |
| 14 #include "mojo/edk/system/handle_signals_state.h" | |
| 15 #include "mojo/edk/system/test_utils.h" | |
| 16 #include "mojo/edk/system/waiter.h" | |
| 17 #include "mojo/edk/system/waiter_test_utils.h" | |
| 18 #include "testing/gtest/include/gtest/gtest.h" | |
| 19 | |
| 20 namespace mojo { | |
| 21 namespace system { | |
| 22 namespace { | |
| 23 | |
| 24 TEST(WaiterListTest, BasicCancel) { | |
| 25 MojoResult result; | |
| 26 uint32_t context; | |
| 27 | |
| 28 // Cancel immediately after thread start. | |
| 29 { | |
| 30 WaiterList waiter_list; | |
| 31 test::SimpleWaiterThread thread(&result, &context); | |
| 32 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 1); | |
| 33 thread.Start(); | |
| 34 waiter_list.CancelAllWaiters(); | |
| 35 // Double-remove okay: | |
| 36 waiter_list.RemoveWaiter(thread.waiter()); | |
| 37 } // Join |thread|. | |
| 38 EXPECT_EQ(MOJO_RESULT_CANCELLED, result); | |
| 39 EXPECT_EQ(1u, context); | |
| 40 | |
| 41 // Cancel before after thread start. | |
| 42 { | |
| 43 WaiterList waiter_list; | |
| 44 test::SimpleWaiterThread thread(&result, &context); | |
| 45 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 2); | |
| 46 waiter_list.CancelAllWaiters(); | |
| 47 thread.Start(); | |
| 48 } // Join |thread|. | |
| 49 EXPECT_EQ(MOJO_RESULT_CANCELLED, result); | |
| 50 EXPECT_EQ(2u, context); | |
| 51 | |
| 52 // Cancel some time after thread start. | |
| 53 { | |
| 54 WaiterList waiter_list; | |
| 55 test::SimpleWaiterThread thread(&result, &context); | |
| 56 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 3); | |
| 57 thread.Start(); | |
| 58 base::PlatformThread::Sleep(2 * test::EpsilonTimeout()); | |
| 59 waiter_list.CancelAllWaiters(); | |
| 60 } // Join |thread|. | |
| 61 EXPECT_EQ(MOJO_RESULT_CANCELLED, result); | |
| 62 EXPECT_EQ(3u, context); | |
| 63 } | |
| 64 | |
| 65 TEST(WaiterListTest, BasicAwakeSatisfied) { | |
| 66 MojoResult result; | |
| 67 uint32_t context; | |
| 68 | |
| 69 // Awake immediately after thread start. | |
| 70 { | |
| 71 WaiterList waiter_list; | |
| 72 test::SimpleWaiterThread thread(&result, &context); | |
| 73 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 1); | |
| 74 thread.Start(); | |
| 75 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 76 MOJO_HANDLE_SIGNAL_READABLE, | |
| 77 MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 78 waiter_list.RemoveWaiter(thread.waiter()); | |
| 79 } // Join |thread|. | |
| 80 EXPECT_EQ(MOJO_RESULT_OK, result); | |
| 81 EXPECT_EQ(1u, context); | |
| 82 | |
| 83 // Awake before after thread start. | |
| 84 { | |
| 85 WaiterList waiter_list; | |
| 86 test::SimpleWaiterThread thread(&result, &context); | |
| 87 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 2); | |
| 88 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 89 MOJO_HANDLE_SIGNAL_WRITABLE, | |
| 90 MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 91 waiter_list.RemoveWaiter(thread.waiter()); | |
| 92 // Double-remove okay: | |
| 93 waiter_list.RemoveWaiter(thread.waiter()); | |
| 94 thread.Start(); | |
| 95 } // Join |thread|. | |
| 96 EXPECT_EQ(MOJO_RESULT_OK, result); | |
| 97 EXPECT_EQ(2u, context); | |
| 98 | |
| 99 // Awake some time after thread start. | |
| 100 { | |
| 101 WaiterList waiter_list; | |
| 102 test::SimpleWaiterThread thread(&result, &context); | |
| 103 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 3); | |
| 104 thread.Start(); | |
| 105 base::PlatformThread::Sleep(2 * test::EpsilonTimeout()); | |
| 106 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 107 MOJO_HANDLE_SIGNAL_READABLE, | |
| 108 MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 109 waiter_list.RemoveWaiter(thread.waiter()); | |
| 110 } // Join |thread|. | |
| 111 EXPECT_EQ(MOJO_RESULT_OK, result); | |
| 112 EXPECT_EQ(3u, context); | |
| 113 } | |
| 114 | |
| 115 TEST(WaiterListTest, BasicAwakeUnsatisfiable) { | |
| 116 MojoResult result; | |
| 117 uint32_t context; | |
| 118 | |
| 119 // Awake (for unsatisfiability) immediately after thread start. | |
| 120 { | |
| 121 WaiterList waiter_list; | |
| 122 test::SimpleWaiterThread thread(&result, &context); | |
| 123 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 1); | |
| 124 thread.Start(); | |
| 125 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 126 MOJO_HANDLE_SIGNAL_NONE, MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 127 waiter_list.RemoveWaiter(thread.waiter()); | |
| 128 } // Join |thread|. | |
| 129 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, result); | |
| 130 EXPECT_EQ(1u, context); | |
| 131 | |
| 132 // Awake (for unsatisfiability) before after thread start. | |
| 133 { | |
| 134 WaiterList waiter_list; | |
| 135 test::SimpleWaiterThread thread(&result, &context); | |
| 136 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 2); | |
| 137 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 138 MOJO_HANDLE_SIGNAL_READABLE, MOJO_HANDLE_SIGNAL_READABLE)); | |
| 139 waiter_list.RemoveWaiter(thread.waiter()); | |
| 140 thread.Start(); | |
| 141 } // Join |thread|. | |
| 142 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, result); | |
| 143 EXPECT_EQ(2u, context); | |
| 144 | |
| 145 // Awake (for unsatisfiability) some time after thread start. | |
| 146 { | |
| 147 WaiterList waiter_list; | |
| 148 test::SimpleWaiterThread thread(&result, &context); | |
| 149 waiter_list.AddWaiter(thread.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 3); | |
| 150 thread.Start(); | |
| 151 base::PlatformThread::Sleep(2 * test::EpsilonTimeout()); | |
| 152 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 153 MOJO_HANDLE_SIGNAL_NONE, MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 154 waiter_list.RemoveWaiter(thread.waiter()); | |
| 155 // Double-remove okay: | |
| 156 waiter_list.RemoveWaiter(thread.waiter()); | |
| 157 } // Join |thread|. | |
| 158 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, result); | |
| 159 EXPECT_EQ(3u, context); | |
| 160 } | |
| 161 | |
| 162 TEST(WaiterListTest, MultipleWaiters) { | |
| 163 MojoResult result1; | |
| 164 MojoResult result2; | |
| 165 MojoResult result3; | |
| 166 MojoResult result4; | |
| 167 uint32_t context1; | |
| 168 uint32_t context2; | |
| 169 uint32_t context3; | |
| 170 uint32_t context4; | |
| 171 | |
| 172 // Cancel two waiters. | |
| 173 { | |
| 174 WaiterList waiter_list; | |
| 175 test::SimpleWaiterThread thread1(&result1, &context1); | |
| 176 waiter_list.AddWaiter(thread1.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 1); | |
| 177 thread1.Start(); | |
| 178 test::SimpleWaiterThread thread2(&result2, &context2); | |
| 179 waiter_list.AddWaiter(thread2.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 2); | |
| 180 thread2.Start(); | |
| 181 base::PlatformThread::Sleep(2 * test::EpsilonTimeout()); | |
| 182 waiter_list.CancelAllWaiters(); | |
| 183 } // Join threads. | |
| 184 EXPECT_EQ(MOJO_RESULT_CANCELLED, result1); | |
| 185 EXPECT_EQ(1u, context1); | |
| 186 EXPECT_EQ(MOJO_RESULT_CANCELLED, result2); | |
| 187 EXPECT_EQ(2u, context2); | |
| 188 | |
| 189 // Awake one waiter, cancel other. | |
| 190 { | |
| 191 WaiterList waiter_list; | |
| 192 test::SimpleWaiterThread thread1(&result1, &context1); | |
| 193 waiter_list.AddWaiter(thread1.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 3); | |
| 194 thread1.Start(); | |
| 195 test::SimpleWaiterThread thread2(&result2, &context2); | |
| 196 waiter_list.AddWaiter(thread2.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 4); | |
| 197 thread2.Start(); | |
| 198 base::PlatformThread::Sleep(2 * test::EpsilonTimeout()); | |
| 199 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 200 MOJO_HANDLE_SIGNAL_READABLE, | |
| 201 MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 202 waiter_list.RemoveWaiter(thread1.waiter()); | |
| 203 waiter_list.CancelAllWaiters(); | |
| 204 } // Join threads. | |
| 205 EXPECT_EQ(MOJO_RESULT_OK, result1); | |
| 206 EXPECT_EQ(3u, context1); | |
| 207 EXPECT_EQ(MOJO_RESULT_CANCELLED, result2); | |
| 208 EXPECT_EQ(4u, context2); | |
| 209 | |
| 210 // Cancel one waiter, awake other for unsatisfiability. | |
| 211 { | |
| 212 WaiterList waiter_list; | |
| 213 test::SimpleWaiterThread thread1(&result1, &context1); | |
| 214 waiter_list.AddWaiter(thread1.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 5); | |
| 215 thread1.Start(); | |
| 216 test::SimpleWaiterThread thread2(&result2, &context2); | |
| 217 waiter_list.AddWaiter(thread2.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 6); | |
| 218 thread2.Start(); | |
| 219 base::PlatformThread::Sleep(2 * test::EpsilonTimeout()); | |
| 220 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 221 MOJO_HANDLE_SIGNAL_NONE, MOJO_HANDLE_SIGNAL_READABLE)); | |
| 222 waiter_list.RemoveWaiter(thread2.waiter()); | |
| 223 waiter_list.CancelAllWaiters(); | |
| 224 } // Join threads. | |
| 225 EXPECT_EQ(MOJO_RESULT_CANCELLED, result1); | |
| 226 EXPECT_EQ(5u, context1); | |
| 227 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, result2); | |
| 228 EXPECT_EQ(6u, context2); | |
| 229 | |
| 230 // Cancel one waiter, awake other for unsatisfiability. | |
| 231 { | |
| 232 WaiterList waiter_list; | |
| 233 test::SimpleWaiterThread thread1(&result1, &context1); | |
| 234 waiter_list.AddWaiter(thread1.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 7); | |
| 235 thread1.Start(); | |
| 236 | |
| 237 base::PlatformThread::Sleep(1 * test::EpsilonTimeout()); | |
| 238 | |
| 239 // Should do nothing. | |
| 240 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 241 MOJO_HANDLE_SIGNAL_NONE, | |
| 242 MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 243 | |
| 244 test::SimpleWaiterThread thread2(&result2, &context2); | |
| 245 waiter_list.AddWaiter(thread2.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 8); | |
| 246 thread2.Start(); | |
| 247 | |
| 248 base::PlatformThread::Sleep(1 * test::EpsilonTimeout()); | |
| 249 | |
| 250 // Awake #1. | |
| 251 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 252 MOJO_HANDLE_SIGNAL_READABLE, | |
| 253 MOJO_HANDLE_SIGNAL_READABLE | MOJO_HANDLE_SIGNAL_WRITABLE)); | |
| 254 waiter_list.RemoveWaiter(thread1.waiter()); | |
| 255 | |
| 256 base::PlatformThread::Sleep(1 * test::EpsilonTimeout()); | |
| 257 | |
| 258 test::SimpleWaiterThread thread3(&result3, &context3); | |
| 259 waiter_list.AddWaiter(thread3.waiter(), MOJO_HANDLE_SIGNAL_WRITABLE, 9); | |
| 260 thread3.Start(); | |
| 261 | |
| 262 test::SimpleWaiterThread thread4(&result4, &context4); | |
| 263 waiter_list.AddWaiter(thread4.waiter(), MOJO_HANDLE_SIGNAL_READABLE, 10); | |
| 264 thread4.Start(); | |
| 265 | |
| 266 base::PlatformThread::Sleep(1 * test::EpsilonTimeout()); | |
| 267 | |
| 268 // Awake #2 and #3 for unsatisfiability. | |
| 269 waiter_list.AwakeWaitersForStateChange(HandleSignalsState( | |
| 270 MOJO_HANDLE_SIGNAL_NONE, MOJO_HANDLE_SIGNAL_READABLE)); | |
| 271 waiter_list.RemoveWaiter(thread2.waiter()); | |
| 272 waiter_list.RemoveWaiter(thread3.waiter()); | |
| 273 | |
| 274 // Cancel #4. | |
| 275 waiter_list.CancelAllWaiters(); | |
| 276 } // Join threads. | |
| 277 EXPECT_EQ(MOJO_RESULT_OK, result1); | |
| 278 EXPECT_EQ(7u, context1); | |
| 279 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, result2); | |
| 280 EXPECT_EQ(8u, context2); | |
| 281 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, result3); | |
| 282 EXPECT_EQ(9u, context3); | |
| 283 EXPECT_EQ(MOJO_RESULT_CANCELLED, result4); | |
| 284 EXPECT_EQ(10u, context4); | |
| 285 } | |
| 286 | |
| 287 } // namespace | |
| 288 } // namespace system | |
| 289 } // namespace mojo | |
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Chromium Code Reviews
Issue 782693004:
Update mojo sdk to rev f6c8ec07c01deebc13178d516225fd12695c3dc2 (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master