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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "base/message_pump_glib.h" | 5 #include "base/message_pump_glib.h" |
| 6 | 6 |
| 7 #include <math.h> | 7 #include <math.h> |
| 8 | 8 |
| 9 #include <algorithm> | 9 #include <algorithm> |
| 10 #include <vector> | 10 #include <vector> |
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| 134 DISALLOW_COPY_AND_ASSIGN(EventInjector); | 134 DISALLOW_COPY_AND_ASSIGN(EventInjector); |
| 135 }; | 135 }; |
| 136 | 136 |
| 137 GSourceFuncs EventInjector::SourceFuncs = { | 137 GSourceFuncs EventInjector::SourceFuncs = { |
| 138 EventInjector::Prepare, | 138 EventInjector::Prepare, |
| 139 EventInjector::Check, | 139 EventInjector::Check, |
| 140 EventInjector::Dispatch, | 140 EventInjector::Dispatch, |
| 141 NULL | 141 NULL |
| 142 }; | 142 }; |
| 143 | 143 |
| 144 // Does nothing. This function can be called from a task. | |
| 145 void DoNothing() { | |
| 146 } | |
| 147 | |
| 148 void IncrementInt(int *value) { | 144 void IncrementInt(int *value) { |
| 149 ++*value; | 145 ++*value; |
| 150 } | 146 } |
| 151 | 147 |
| 152 // Checks how many events have been processed by the injector. | 148 // Checks how many events have been processed by the injector. |
| 153 void ExpectProcessedEvents(EventInjector* injector, int count) { | 149 void ExpectProcessedEvents(EventInjector* injector, int count) { |
| 154 EXPECT_EQ(injector->processed_events(), count); | 150 EXPECT_EQ(injector->processed_events(), count); |
| 155 } | 151 } |
| 156 | 152 |
| 157 // Posts a task on the current message loop. | 153 // Posts a task on the current message loop. |
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| 204 } | 200 } |
| 205 | 201 |
| 206 TEST_F(MessagePumpGLibTest, TestEventTaskInterleave) { | 202 TEST_F(MessagePumpGLibTest, TestEventTaskInterleave) { |
| 207 // Checks that tasks posted by events are executed before the next event if | 203 // Checks that tasks posted by events are executed before the next event if |
| 208 // the posted task queue is empty. | 204 // the posted task queue is empty. |
| 209 // MessageLoop doesn't make strong guarantees that it is the case, but the | 205 // MessageLoop doesn't make strong guarantees that it is the case, but the |
| 210 // current implementation ensures it and the tests below rely on it. | 206 // current implementation ensures it and the tests below rely on it. |
| 211 // If changes cause this test to fail, it is reasonable to change it, but | 207 // If changes cause this test to fail, it is reasonable to change it, but |
| 212 // TestWorkWhileWaitingForEvents and TestEventsWhileWaitingForWork have to be | 208 // TestWorkWhileWaitingForEvents and TestEventsWhileWaitingForWork have to be |
| 213 // changed accordingly, otherwise they can become flaky. | 209 // changed accordingly, otherwise they can become flaky. |
| 214 injector()->AddEventAsTask(0, base::Bind(&DoNothing)); | 210 injector()->AddEventAsTask(0, base::Bind(&base::DoNothing)); |
| 215 base::Closure check_task = | 211 base::Closure check_task = |
| 216 base::Bind(&ExpectProcessedEvents, base::Unretained(injector()), 2); | 212 base::Bind(&ExpectProcessedEvents, base::Unretained(injector()), 2); |
| 217 base::Closure posted_task = | 213 base::Closure posted_task = |
| 218 base::Bind(&PostMessageLoopTask, FROM_HERE, check_task); | 214 base::Bind(&PostMessageLoopTask, FROM_HERE, check_task); |
| 219 injector()->AddEventAsTask(0, posted_task); | 215 injector()->AddEventAsTask(0, posted_task); |
| 220 injector()->AddEventAsTask(0, base::Bind(&DoNothing)); | 216 injector()->AddEventAsTask(0, base::Bind(&base::DoNothing)); |
| 221 injector()->AddEvent(0, MessageLoop::QuitClosure()); | 217 injector()->AddEvent(0, MessageLoop::QuitClosure()); |
| 222 loop()->Run(); | 218 loop()->Run(); |
| 223 EXPECT_EQ(4, injector()->processed_events()); | 219 EXPECT_EQ(4, injector()->processed_events()); |
| 224 | 220 |
| 225 injector()->Reset(); | 221 injector()->Reset(); |
| 226 injector()->AddEventAsTask(0, base::Bind(&DoNothing)); | 222 injector()->AddEventAsTask(0, base::Bind(&base::DoNothing)); |
| 227 check_task = | 223 check_task = |
| 228 base::Bind(&ExpectProcessedEvents, base::Unretained(injector()), 2); | 224 base::Bind(&ExpectProcessedEvents, base::Unretained(injector()), 2); |
| 229 posted_task = base::Bind(&PostMessageLoopTask, FROM_HERE, check_task); | 225 posted_task = base::Bind(&PostMessageLoopTask, FROM_HERE, check_task); |
| 230 injector()->AddEventAsTask(0, posted_task); | 226 injector()->AddEventAsTask(0, posted_task); |
| 231 injector()->AddEventAsTask(10, base::Bind(&DoNothing)); | 227 injector()->AddEventAsTask(10, base::Bind(&base::DoNothing)); |
| 232 injector()->AddEvent(0, MessageLoop::QuitClosure()); | 228 injector()->AddEvent(0, MessageLoop::QuitClosure()); |
| 233 loop()->Run(); | 229 loop()->Run(); |
| 234 EXPECT_EQ(4, injector()->processed_events()); | 230 EXPECT_EQ(4, injector()->processed_events()); |
| 235 } | 231 } |
| 236 | 232 |
| 237 TEST_F(MessagePumpGLibTest, TestWorkWhileWaitingForEvents) { | 233 TEST_F(MessagePumpGLibTest, TestWorkWhileWaitingForEvents) { |
| 238 int task_count = 0; | 234 int task_count = 0; |
| 239 // Tests that we process tasks while waiting for new events. | 235 // Tests that we process tasks while waiting for new events. |
| 240 // The event queue is empty at first. | 236 // The event queue is empty at first. |
| 241 for (int i = 0; i < 10; ++i) { | 237 for (int i = 0; i < 10; ++i) { |
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| 377 namespace { | 373 namespace { |
| 378 | 374 |
| 379 void AddEventsAndDrainGLib(EventInjector* injector) { | 375 void AddEventsAndDrainGLib(EventInjector* injector) { |
| 380 // Add a couple of dummy events | 376 // Add a couple of dummy events |
| 381 injector->AddDummyEvent(0); | 377 injector->AddDummyEvent(0); |
| 382 injector->AddDummyEvent(0); | 378 injector->AddDummyEvent(0); |
| 383 // Then add an event that will quit the main loop. | 379 // Then add an event that will quit the main loop. |
| 384 injector->AddEvent(0, MessageLoop::QuitClosure()); | 380 injector->AddEvent(0, MessageLoop::QuitClosure()); |
| 385 | 381 |
| 386 // Post a couple of dummy tasks | 382 // Post a couple of dummy tasks |
| 387 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&DoNothing)); | 383 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&base::DoNothing)); |
| 388 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&DoNothing)); | 384 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&base::DoNothing)); |
| 389 | 385 |
| 390 // Drain the events | 386 // Drain the events |
| 391 while (g_main_context_pending(NULL)) { | 387 while (g_main_context_pending(NULL)) { |
| 392 g_main_context_iteration(NULL, FALSE); | 388 g_main_context_iteration(NULL, FALSE); |
| 393 } | 389 } |
| 394 } | 390 } |
| 395 | 391 |
| 396 } // namespace | 392 } // namespace |
| 397 | 393 |
| 398 TEST_F(MessagePumpGLibTest, TestDrainingGLib) { | 394 TEST_F(MessagePumpGLibTest, TestDrainingGLib) { |
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| 410 | 406 |
| 411 #if defined(TOOLKIT_USES_GTK) | 407 #if defined(TOOLKIT_USES_GTK) |
| 412 void AddEventsAndDrainGtk(EventInjector* injector) { | 408 void AddEventsAndDrainGtk(EventInjector* injector) { |
| 413 // Add a couple of dummy events | 409 // Add a couple of dummy events |
| 414 injector->AddDummyEvent(0); | 410 injector->AddDummyEvent(0); |
| 415 injector->AddDummyEvent(0); | 411 injector->AddDummyEvent(0); |
| 416 // Then add an event that will quit the main loop. | 412 // Then add an event that will quit the main loop. |
| 417 injector->AddEvent(0, MessageLoop::QuitClosure()); | 413 injector->AddEvent(0, MessageLoop::QuitClosure()); |
| 418 | 414 |
| 419 // Post a couple of dummy tasks | 415 // Post a couple of dummy tasks |
| 420 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&DoNothing)); | 416 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&base::DoNothing)); |
| 421 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&DoNothing)); | 417 MessageLoop::current()->PostTask(FROM_HERE, base::Bind(&base::DoNothing)); |
| 422 | 418 |
| 423 // Drain the events | 419 // Drain the events |
| 424 while (gtk_events_pending()) { | 420 while (gtk_events_pending()) { |
| 425 gtk_main_iteration(); | 421 gtk_main_iteration(); |
| 426 } | 422 } |
| 427 } | 423 } |
| 428 #endif | 424 #endif |
| 429 | 425 |
| 430 } // namespace | 426 } // namespace |
| 431 | 427 |
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| 560 TEST_F(MessagePumpGLibTest, TestGtkLoop) { | 556 TEST_F(MessagePumpGLibTest, TestGtkLoop) { |
| 561 // Tests that events and posted tasks are correctly executed if the message | 557 // Tests that events and posted tasks are correctly executed if the message |
| 562 // loop is not run by MessageLoop::Run() but by a straight Gtk loop. | 558 // loop is not run by MessageLoop::Run() but by a straight Gtk loop. |
| 563 // Note that in this case we don't make strong guarantees about niceness | 559 // Note that in this case we don't make strong guarantees about niceness |
| 564 // between events and posted tasks. | 560 // between events and posted tasks. |
| 565 loop()->PostTask( | 561 loop()->PostTask( |
| 566 FROM_HERE, | 562 FROM_HERE, |
| 567 base::Bind(&TestGtkLoopInternal, base::Unretained(injector()))); | 563 base::Bind(&TestGtkLoopInternal, base::Unretained(injector()))); |
| 568 loop()->Run(); | 564 loop()->Run(); |
| 569 } | 565 } |
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