| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2015 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 #include "mojo/edk/system/wait_set_dispatcher.h" | |
| 6 | |
| 7 #include <stddef.h> | |
| 8 #include <stdint.h> | |
| 9 | |
| 10 #include <algorithm> | |
| 11 | |
| 12 #include "base/macros.h" | |
| 13 #include "base/memory/ref_counted.h" | |
| 14 #include "mojo/edk/embedder/embedder_internal.h" | |
| 15 #include "mojo/edk/system/core.h" | |
| 16 #include "mojo/edk/system/message_for_transit.h" | |
| 17 #include "mojo/edk/system/message_pipe_dispatcher.h" | |
| 18 #include "mojo/edk/system/request_context.h" | |
| 19 #include "mojo/edk/system/test_utils.h" | |
| 20 #include "mojo/edk/system/waiter.h" | |
| 21 #include "testing/gtest/include/gtest/gtest.h" | |
| 22 | |
| 23 namespace mojo { | |
| 24 namespace edk { | |
| 25 namespace { | |
| 26 | |
| 27 class WaitSetDispatcherTest : public ::testing::Test { | |
| 28 public: | |
| 29 WaitSetDispatcherTest() {} | |
| 30 ~WaitSetDispatcherTest() override {} | |
| 31 | |
| 32 void SetUp() override { | |
| 33 CreateMessagePipe(&dispatcher0_, &dispatcher1_); | |
| 34 } | |
| 35 | |
| 36 void TearDown() override { | |
| 37 for (auto& d : dispatchers_to_close_) | |
| 38 d->Close(); | |
| 39 } | |
| 40 | |
| 41 MojoResult GetOneReadyDispatcher( | |
| 42 const scoped_refptr<WaitSetDispatcher>& wait_set, | |
| 43 scoped_refptr<Dispatcher>* ready_dispatcher, | |
| 44 uintptr_t* context) { | |
| 45 uint32_t count = 1; | |
| 46 MojoResult dispatcher_result = MOJO_RESULT_UNKNOWN; | |
| 47 DispatcherVector dispatchers; | |
| 48 MojoResult result = wait_set->GetReadyDispatchers( | |
| 49 &count, &dispatchers, &dispatcher_result, context); | |
| 50 if (result == MOJO_RESULT_OK) { | |
| 51 CHECK_EQ(1u, dispatchers.size()); | |
| 52 *ready_dispatcher = dispatchers[0]; | |
| 53 return dispatcher_result; | |
| 54 } | |
| 55 return result; | |
| 56 } | |
| 57 | |
| 58 void CreateMessagePipe(scoped_refptr<MessagePipeDispatcher>* d0, | |
| 59 scoped_refptr<MessagePipeDispatcher>* d1) { | |
| 60 MojoHandle h0, h1; | |
| 61 EXPECT_EQ(MOJO_RESULT_OK, MojoCreateMessagePipe(nullptr, &h0, &h1)); | |
| 62 | |
| 63 Core* core = mojo::edk::internal::g_core; | |
| 64 *d0 = scoped_refptr<MessagePipeDispatcher>( | |
| 65 static_cast<MessagePipeDispatcher*>(core->GetDispatcher(h0).get())); | |
| 66 *d1 = scoped_refptr<MessagePipeDispatcher>( | |
| 67 static_cast<MessagePipeDispatcher*>(core->GetDispatcher(h1).get())); | |
| 68 pipe_id_generator_++; | |
| 69 | |
| 70 dispatchers_to_close_.push_back(*d0); | |
| 71 dispatchers_to_close_.push_back(*d1); | |
| 72 } | |
| 73 | |
| 74 void CloseOnShutdown(const scoped_refptr<Dispatcher>& dispatcher) { | |
| 75 dispatchers_to_close_.push_back(dispatcher); | |
| 76 } | |
| 77 | |
| 78 void WriteMessage(MessagePipeDispatcher* dispatcher, | |
| 79 const void* bytes, | |
| 80 size_t num_bytes) { | |
| 81 Core* core = mojo::edk::internal::g_core; | |
| 82 MojoMessageHandle msg; | |
| 83 ASSERT_EQ(MOJO_RESULT_OK, | |
| 84 core->AllocMessage(static_cast<uint32_t>(num_bytes), nullptr, 0, | |
| 85 MOJO_ALLOC_MESSAGE_FLAG_NONE, &msg)); | |
| 86 void* buffer; | |
| 87 ASSERT_EQ(MOJO_RESULT_OK, core->GetMessageBuffer(msg, &buffer)); | |
| 88 memcpy(buffer, bytes, num_bytes); | |
| 89 | |
| 90 std::unique_ptr<MessageForTransit> message( | |
| 91 reinterpret_cast<MessageForTransit*>(msg)); | |
| 92 ASSERT_EQ(MOJO_RESULT_OK, | |
| 93 dispatcher->WriteMessage(std::move(message), | |
| 94 MOJO_WRITE_MESSAGE_FLAG_NONE)); | |
| 95 } | |
| 96 | |
| 97 void ReadMessage(MessagePipeDispatcher* dispatcher, | |
| 98 void* bytes, | |
| 99 uint32_t* num_bytes) { | |
| 100 std::unique_ptr<MessageForTransit> message; | |
| 101 ASSERT_EQ(MOJO_RESULT_OK, | |
| 102 dispatcher->ReadMessage(&message, num_bytes, nullptr, 0, | |
| 103 MOJO_READ_MESSAGE_FLAG_NONE, false)); | |
| 104 memcpy(bytes, message->bytes(), *num_bytes); | |
| 105 } | |
| 106 | |
| 107 protected: | |
| 108 scoped_refptr<MessagePipeDispatcher> dispatcher0_; | |
| 109 scoped_refptr<MessagePipeDispatcher> dispatcher1_; | |
| 110 | |
| 111 private: | |
| 112 // We keep an active RequestContext for the duration of each test. It's unused | |
| 113 // since these tests don't rely on the MojoWatch API. | |
| 114 const RequestContext request_context_; | |
| 115 | |
| 116 static uint64_t pipe_id_generator_; | |
| 117 DispatcherVector dispatchers_to_close_; | |
| 118 | |
| 119 DISALLOW_COPY_AND_ASSIGN(WaitSetDispatcherTest); | |
| 120 }; | |
| 121 | |
| 122 // static | |
| 123 uint64_t WaitSetDispatcherTest::pipe_id_generator_ = 1; | |
| 124 | |
| 125 TEST_F(WaitSetDispatcherTest, Basic) { | |
| 126 scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher(); | |
| 127 CloseOnShutdown(wait_set); | |
| 128 ASSERT_EQ(MOJO_RESULT_OK, | |
| 129 wait_set->AddWaitingDispatcher(dispatcher0_, | |
| 130 MOJO_HANDLE_SIGNAL_READABLE, 1)); | |
| 131 ASSERT_EQ(MOJO_RESULT_OK, | |
| 132 wait_set->AddWaitingDispatcher(dispatcher1_, | |
| 133 MOJO_HANDLE_SIGNAL_WRITABLE, 2)); | |
| 134 | |
| 135 Waiter w; | |
| 136 uintptr_t context = 0; | |
| 137 w.Init(); | |
| 138 HandleSignalsState hss; | |
| 139 // |dispatcher1_| should already be writable. | |
| 140 EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS, | |
| 141 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 142 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals); | |
| 143 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals); | |
| 144 | |
| 145 scoped_refptr<Dispatcher> woken_dispatcher; | |
| 146 EXPECT_EQ(MOJO_RESULT_OK, | |
| 147 GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context)); | |
| 148 EXPECT_EQ(dispatcher1_, woken_dispatcher); | |
| 149 EXPECT_EQ(2u, context); | |
| 150 // If a ready dispatcher isn't removed, it will continue to be returned. | |
| 151 EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS, | |
| 152 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 153 woken_dispatcher = nullptr; | |
| 154 context = 0; | |
| 155 EXPECT_EQ(MOJO_RESULT_OK, | |
| 156 GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context)); | |
| 157 EXPECT_EQ(dispatcher1_, woken_dispatcher); | |
| 158 EXPECT_EQ(2u, context); | |
| 159 ASSERT_EQ(MOJO_RESULT_OK, wait_set->RemoveWaitingDispatcher(dispatcher1_)); | |
| 160 | |
| 161 // No ready dispatcher. | |
| 162 hss = HandleSignalsState(); | |
| 163 EXPECT_EQ(MOJO_RESULT_OK, | |
| 164 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 165 EXPECT_FALSE(hss.satisfies(MOJO_HANDLE_SIGNAL_READABLE)); | |
| 166 EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr)); | |
| 167 EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, | |
| 168 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 169 | |
| 170 // Write to |dispatcher1_|, which should make |dispatcher0_| readable. | |
| 171 char buffer[] = "abcd"; | |
| 172 w.Init(); | |
| 173 WriteMessage(dispatcher1_.get(), buffer, sizeof(buffer)); | |
| 174 EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr)); | |
| 175 woken_dispatcher = nullptr; | |
| 176 context = 0; | |
| 177 EXPECT_EQ(MOJO_RESULT_OK, | |
| 178 GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context)); | |
| 179 EXPECT_EQ(dispatcher0_, woken_dispatcher); | |
| 180 EXPECT_EQ(1u, context); | |
| 181 | |
| 182 // Again, if a ready dispatcher isn't removed, it will continue to be | |
| 183 // returned. | |
| 184 woken_dispatcher = nullptr; | |
| 185 EXPECT_EQ(MOJO_RESULT_OK, | |
| 186 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 187 EXPECT_EQ(dispatcher0_, woken_dispatcher); | |
| 188 | |
| 189 wait_set->RemoveAwakable(&w, nullptr); | |
| 190 } | |
| 191 | |
| 192 TEST_F(WaitSetDispatcherTest, HandleWithoutRemoving) { | |
| 193 scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher(); | |
| 194 CloseOnShutdown(wait_set); | |
| 195 ASSERT_EQ(MOJO_RESULT_OK, | |
| 196 wait_set->AddWaitingDispatcher(dispatcher0_, | |
| 197 MOJO_HANDLE_SIGNAL_READABLE, 1)); | |
| 198 | |
| 199 Waiter w; | |
| 200 uintptr_t context = 0; | |
| 201 w.Init(); | |
| 202 HandleSignalsState hss; | |
| 203 // No ready dispatcher. | |
| 204 hss = HandleSignalsState(); | |
| 205 EXPECT_EQ(MOJO_RESULT_OK, | |
| 206 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 207 EXPECT_FALSE(hss.satisfies(MOJO_HANDLE_SIGNAL_READABLE)); | |
| 208 EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr)); | |
| 209 scoped_refptr<Dispatcher> woken_dispatcher; | |
| 210 EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, | |
| 211 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 212 | |
| 213 // The tested behaviour below should be repeatable. | |
| 214 for (size_t i = 0; i < 3; i++) { | |
| 215 // Write to |dispatcher1_|, which should make |dispatcher0_| readable. | |
| 216 char buffer[] = "abcd"; | |
| 217 w.Init(); | |
| 218 WriteMessage(dispatcher1_.get(), buffer, sizeof(buffer)); | |
| 219 EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr)); | |
| 220 woken_dispatcher = nullptr; | |
| 221 context = 0; | |
| 222 EXPECT_EQ(MOJO_RESULT_OK, | |
| 223 GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context)); | |
| 224 EXPECT_EQ(dispatcher0_, woken_dispatcher); | |
| 225 EXPECT_EQ(1u, context); | |
| 226 | |
| 227 // Read from |dispatcher0_| which should change it's state to non-readable. | |
| 228 char read_buffer[sizeof(buffer) + 5]; | |
| 229 uint32_t num_bytes = sizeof(read_buffer); | |
| 230 ReadMessage(dispatcher0_.get(), read_buffer, &num_bytes); | |
| 231 EXPECT_EQ(sizeof(buffer), num_bytes); | |
| 232 | |
| 233 // No dispatchers are ready. | |
| 234 w.Init(); | |
| 235 woken_dispatcher = nullptr; | |
| 236 context = 0; | |
| 237 EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, | |
| 238 GetOneReadyDispatcher(wait_set, &woken_dispatcher, &context)); | |
| 239 EXPECT_FALSE(woken_dispatcher); | |
| 240 EXPECT_EQ(0u, context); | |
| 241 EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr)); | |
| 242 } | |
| 243 | |
| 244 wait_set->RemoveAwakable(&w, nullptr); | |
| 245 } | |
| 246 | |
| 247 TEST_F(WaitSetDispatcherTest, MultipleReady) { | |
| 248 scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher(); | |
| 249 CloseOnShutdown(wait_set); | |
| 250 | |
| 251 scoped_refptr<MessagePipeDispatcher> mp1_dispatcher0; | |
| 252 scoped_refptr<MessagePipeDispatcher> mp1_dispatcher1; | |
| 253 CreateMessagePipe(&mp1_dispatcher0, &mp1_dispatcher1); | |
| 254 | |
| 255 ASSERT_EQ(MOJO_RESULT_OK, | |
| 256 wait_set->AddWaitingDispatcher(dispatcher0_, | |
| 257 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 258 ASSERT_EQ(MOJO_RESULT_OK, | |
| 259 wait_set->AddWaitingDispatcher(dispatcher1_, | |
| 260 MOJO_HANDLE_SIGNAL_WRITABLE, 0)); | |
| 261 ASSERT_EQ(MOJO_RESULT_OK, | |
| 262 wait_set->AddWaitingDispatcher(mp1_dispatcher0, | |
| 263 MOJO_HANDLE_SIGNAL_WRITABLE, 0)); | |
| 264 ASSERT_EQ(MOJO_RESULT_OK, | |
| 265 wait_set->AddWaitingDispatcher(mp1_dispatcher1, | |
| 266 MOJO_HANDLE_SIGNAL_WRITABLE, 0)); | |
| 267 | |
| 268 Waiter w; | |
| 269 w.Init(); | |
| 270 HandleSignalsState hss; | |
| 271 // The three writable dispatchers should be ready. | |
| 272 EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS, | |
| 273 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 274 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals); | |
| 275 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals); | |
| 276 | |
| 277 scoped_refptr<Dispatcher> woken_dispatcher; | |
| 278 EXPECT_EQ(MOJO_RESULT_OK, | |
| 279 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 280 // Don't know which dispatcher was returned, just that it was one of the | |
| 281 // writable ones. | |
| 282 EXPECT_TRUE(woken_dispatcher == dispatcher1_ || | |
| 283 woken_dispatcher == mp1_dispatcher0 || | |
| 284 woken_dispatcher == mp1_dispatcher1); | |
| 285 | |
| 286 DispatcherVector dispatchers_vector; | |
| 287 uint32_t count = 4; | |
| 288 MojoResult results[4]; | |
| 289 EXPECT_EQ(MOJO_RESULT_OK, | |
| 290 wait_set->GetReadyDispatchers(&count, | |
| 291 &dispatchers_vector, | |
| 292 results, | |
| 293 nullptr)); | |
| 294 EXPECT_EQ(3u, count); | |
| 295 std::sort(dispatchers_vector.begin(), dispatchers_vector.end()); | |
| 296 DispatcherVector expected_dispatchers; | |
| 297 expected_dispatchers.push_back(dispatcher1_); | |
| 298 expected_dispatchers.push_back(mp1_dispatcher0); | |
| 299 expected_dispatchers.push_back(mp1_dispatcher1); | |
| 300 std::sort(expected_dispatchers.begin(), expected_dispatchers.end()); | |
| 301 EXPECT_EQ(expected_dispatchers, dispatchers_vector); | |
| 302 | |
| 303 // If a ready dispatcher isn't removed, it will continue to be returned. | |
| 304 EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS, | |
| 305 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 306 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals); | |
| 307 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals); | |
| 308 count = 4; | |
| 309 dispatchers_vector.clear(); | |
| 310 EXPECT_EQ(MOJO_RESULT_OK, | |
| 311 wait_set->GetReadyDispatchers(&count, | |
| 312 &dispatchers_vector, | |
| 313 results, | |
| 314 nullptr)); | |
| 315 EXPECT_EQ(3u, count); | |
| 316 std::sort(dispatchers_vector.begin(), dispatchers_vector.end()); | |
| 317 EXPECT_EQ(expected_dispatchers, dispatchers_vector); | |
| 318 | |
| 319 // Remove one. It shouldn't be returned any longer. | |
| 320 ASSERT_EQ(MOJO_RESULT_OK, | |
| 321 wait_set->RemoveWaitingDispatcher(expected_dispatchers.back())); | |
| 322 expected_dispatchers.pop_back(); | |
| 323 EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS, | |
| 324 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 325 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals); | |
| 326 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals); | |
| 327 count = 4; | |
| 328 dispatchers_vector.clear(); | |
| 329 EXPECT_EQ(MOJO_RESULT_OK, | |
| 330 wait_set->GetReadyDispatchers(&count, | |
| 331 &dispatchers_vector, | |
| 332 results, | |
| 333 nullptr)); | |
| 334 EXPECT_EQ(2u, count); | |
| 335 std::sort(dispatchers_vector.begin(), dispatchers_vector.end()); | |
| 336 EXPECT_EQ(expected_dispatchers, dispatchers_vector); | |
| 337 | |
| 338 // Write to |dispatcher1_|, which should make |dispatcher0_| readable. | |
| 339 char buffer[] = "abcd"; | |
| 340 w.Init(); | |
| 341 WriteMessage(dispatcher1_.get(), buffer, sizeof(buffer)); | |
| 342 { | |
| 343 Waiter mp_w; | |
| 344 mp_w.Init(); | |
| 345 // Wait for |dispatcher0_| to be readable. | |
| 346 if (dispatcher0_->AddAwakable(&mp_w, MOJO_HANDLE_SIGNAL_READABLE, 0, | |
| 347 nullptr) == MOJO_RESULT_OK) { | |
| 348 EXPECT_EQ(MOJO_RESULT_OK, mp_w.Wait(MOJO_DEADLINE_INDEFINITE, 0)); | |
| 349 dispatcher0_->RemoveAwakable(&mp_w, nullptr); | |
| 350 } | |
| 351 } | |
| 352 expected_dispatchers.push_back(dispatcher0_); | |
| 353 std::sort(expected_dispatchers.begin(), expected_dispatchers.end()); | |
| 354 EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS, | |
| 355 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 356 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfied_signals); | |
| 357 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals); | |
| 358 count = 4; | |
| 359 dispatchers_vector.clear(); | |
| 360 EXPECT_EQ(MOJO_RESULT_OK, | |
| 361 wait_set->GetReadyDispatchers(&count, | |
| 362 &dispatchers_vector, | |
| 363 results, | |
| 364 nullptr)); | |
| 365 EXPECT_EQ(3u, count); | |
| 366 std::sort(dispatchers_vector.begin(), dispatchers_vector.end()); | |
| 367 EXPECT_EQ(expected_dispatchers, dispatchers_vector); | |
| 368 } | |
| 369 | |
| 370 TEST_F(WaitSetDispatcherTest, InvalidParams) { | |
| 371 scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher(); | |
| 372 | |
| 373 // Can't add a wait set to itself. | |
| 374 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 375 wait_set->AddWaitingDispatcher(wait_set, | |
| 376 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 377 | |
| 378 // Can't add twice. | |
| 379 EXPECT_EQ(MOJO_RESULT_OK, | |
| 380 wait_set->AddWaitingDispatcher(dispatcher0_, | |
| 381 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 382 EXPECT_EQ(MOJO_RESULT_ALREADY_EXISTS, | |
| 383 wait_set->AddWaitingDispatcher(dispatcher0_, | |
| 384 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 385 | |
| 386 // Remove a dispatcher that wasn't added. | |
| 387 EXPECT_EQ(MOJO_RESULT_NOT_FOUND, | |
| 388 wait_set->RemoveWaitingDispatcher(dispatcher1_)); | |
| 389 | |
| 390 // Add to a closed wait set. | |
| 391 wait_set->Close(); | |
| 392 EXPECT_EQ(MOJO_RESULT_INVALID_ARGUMENT, | |
| 393 wait_set->AddWaitingDispatcher(dispatcher0_, | |
| 394 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 395 } | |
| 396 | |
| 397 TEST_F(WaitSetDispatcherTest, NotSatisfiable) { | |
| 398 scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher(); | |
| 399 CloseOnShutdown(wait_set); | |
| 400 | |
| 401 // Wait sets can only satisfy MOJO_HANDLE_SIGNAL_READABLE. | |
| 402 Waiter w; | |
| 403 w.Init(); | |
| 404 HandleSignalsState hss; | |
| 405 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, | |
| 406 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_WRITABLE, 0, &hss)); | |
| 407 EXPECT_EQ(MOJO_HANDLE_SIGNAL_NONE, hss.satisfied_signals); | |
| 408 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals); | |
| 409 | |
| 410 hss = HandleSignalsState(); | |
| 411 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, | |
| 412 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_PEER_CLOSED, 0, &hss)); | |
| 413 EXPECT_EQ(MOJO_HANDLE_SIGNAL_NONE, hss.satisfied_signals); | |
| 414 EXPECT_EQ(MOJO_HANDLE_SIGNAL_READABLE, hss.satisfiable_signals); | |
| 415 } | |
| 416 | |
| 417 TEST_F(WaitSetDispatcherTest, ClosedDispatchers) { | |
| 418 scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher(); | |
| 419 CloseOnShutdown(wait_set); | |
| 420 | |
| 421 Waiter w; | |
| 422 w.Init(); | |
| 423 HandleSignalsState hss; | |
| 424 // A dispatcher that was added and then closed will be cancelled. | |
| 425 ASSERT_EQ(MOJO_RESULT_OK, | |
| 426 wait_set->AddWaitingDispatcher(dispatcher0_, | |
| 427 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 428 EXPECT_EQ(MOJO_RESULT_OK, | |
| 429 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, &hss)); | |
| 430 dispatcher0_->Close(); | |
| 431 EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr)); | |
| 432 EXPECT_TRUE( | |
| 433 wait_set->GetHandleSignalsState().satisfies(MOJO_HANDLE_SIGNAL_READABLE)); | |
| 434 scoped_refptr<Dispatcher> woken_dispatcher; | |
| 435 EXPECT_EQ(MOJO_RESULT_CANCELLED, | |
| 436 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 437 EXPECT_EQ(dispatcher0_, woken_dispatcher); | |
| 438 | |
| 439 // Dispatcher will be implicitly removed because it may be impossible to | |
| 440 // remove explicitly. | |
| 441 woken_dispatcher = nullptr; | |
| 442 EXPECT_EQ(MOJO_RESULT_SHOULD_WAIT, | |
| 443 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 444 EXPECT_EQ(MOJO_RESULT_NOT_FOUND, | |
| 445 wait_set->RemoveWaitingDispatcher(dispatcher0_)); | |
| 446 | |
| 447 // A dispatcher that's not satisfiable should give an error. | |
| 448 w.Init(); | |
| 449 EXPECT_EQ(MOJO_RESULT_OK, | |
| 450 wait_set->AddWaitingDispatcher(dispatcher1_, | |
| 451 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 452 EXPECT_EQ(MOJO_RESULT_OK, w.Wait(MOJO_DEADLINE_INDEFINITE, nullptr)); | |
| 453 EXPECT_TRUE( | |
| 454 wait_set->GetHandleSignalsState().satisfies(MOJO_HANDLE_SIGNAL_READABLE)); | |
| 455 EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION, | |
| 456 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 457 EXPECT_EQ(dispatcher1_, woken_dispatcher); | |
| 458 | |
| 459 wait_set->RemoveAwakable(&w, nullptr); | |
| 460 } | |
| 461 | |
| 462 TEST_F(WaitSetDispatcherTest, NestedSets) { | |
| 463 scoped_refptr<WaitSetDispatcher> wait_set = new WaitSetDispatcher(); | |
| 464 CloseOnShutdown(wait_set); | |
| 465 scoped_refptr<WaitSetDispatcher> nested_wait_set = new WaitSetDispatcher(); | |
| 466 CloseOnShutdown(nested_wait_set); | |
| 467 | |
| 468 Waiter w; | |
| 469 w.Init(); | |
| 470 EXPECT_EQ(MOJO_RESULT_OK, | |
| 471 wait_set->AddWaitingDispatcher(nested_wait_set, | |
| 472 MOJO_HANDLE_SIGNAL_READABLE, 0)); | |
| 473 EXPECT_EQ(MOJO_RESULT_OK, | |
| 474 wait_set->AddAwakable(&w, MOJO_HANDLE_SIGNAL_READABLE, 0, nullptr)); | |
| 475 EXPECT_EQ(MOJO_RESULT_DEADLINE_EXCEEDED, w.Wait(0, nullptr)); | |
| 476 | |
| 477 // Writable signal is immediately satisfied by the message pipe. | |
| 478 w.Init(); | |
| 479 EXPECT_EQ(MOJO_RESULT_OK, | |
| 480 nested_wait_set->AddWaitingDispatcher( | |
| 481 dispatcher0_, MOJO_HANDLE_SIGNAL_WRITABLE, 0)); | |
| 482 EXPECT_EQ(MOJO_RESULT_OK, w.Wait(0, nullptr)); | |
| 483 scoped_refptr<Dispatcher> woken_dispatcher; | |
| 484 EXPECT_EQ(MOJO_RESULT_OK, | |
| 485 GetOneReadyDispatcher(wait_set, &woken_dispatcher, nullptr)); | |
| 486 EXPECT_EQ(nested_wait_set, woken_dispatcher); | |
| 487 | |
| 488 wait_set->RemoveAwakable(&w, nullptr); | |
| 489 } | |
| 490 | |
| 491 } // namespace | |
| 492 } // namespace edk | |
| 493 } // namespace mojo | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2744943002:
Mojo: Move waiting APIs to public library (Closed)
