[email protected] | 3b63f8f4 | 2011-03-28 01:54:15 | [diff] [blame] | 1 | // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 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 "base/message_pump_glib.h" |
| 6 | |
[email protected] | 23d3539 | 2009-06-15 19:53:08 | [diff] [blame] | 7 | #include <math.h> |
| 8 | |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 9 | #include <algorithm> |
| 10 | #include <vector> |
[email protected] | 23d3539 | 2009-06-15 19:53:08 | [diff] [blame] | 11 | |
[email protected] | 3b63f8f4 | 2011-03-28 01:54:15 | [diff] [blame] | 12 | #include "base/memory/ref_counted.h" |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 13 | #include "base/message_loop.h" |
[email protected] | 34b9963 | 2011-01-01 01:01:06 | [diff] [blame] | 14 | #include "base/threading/thread.h" |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 15 | #include "testing/gtest/include/gtest/gtest.h" |
| 16 | |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 17 | #if defined(TOOLKIT_USES_GTK) |
| 18 | #include <gtk/gtk.h> |
| 19 | #endif |
| 20 | |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 21 | namespace { |
| 22 | |
| 23 | // This class injects dummy "events" into the GLib loop. When "handled" these |
| 24 | // events can run tasks. This is intended to mock gtk events (the corresponding |
| 25 | // GLib source runs at the same priority). |
| 26 | class EventInjector { |
| 27 | public: |
| 28 | EventInjector() : processed_events_(0) { |
| 29 | source_ = static_cast<Source*>(g_source_new(&SourceFuncs, sizeof(Source))); |
| 30 | source_->injector = this; |
| 31 | g_source_attach(source_, NULL); |
| 32 | g_source_set_can_recurse(source_, TRUE); |
| 33 | } |
| 34 | |
| 35 | ~EventInjector() { |
| 36 | g_source_destroy(source_); |
| 37 | g_source_unref(source_); |
| 38 | } |
| 39 | |
| 40 | int HandlePrepare() { |
| 41 | // If the queue is empty, block. |
| 42 | if (events_.empty()) |
| 43 | return -1; |
| 44 | base::TimeDelta delta = events_[0].time - base::Time::NowFromSystemTime(); |
| 45 | return std::max(0, static_cast<int>(ceil(delta.InMillisecondsF()))); |
| 46 | } |
| 47 | |
| 48 | bool HandleCheck() { |
| 49 | if (events_.empty()) |
| 50 | return false; |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 51 | return events_[0].time <= base::Time::NowFromSystemTime(); |
| 52 | } |
| 53 | |
| 54 | void HandleDispatch() { |
| 55 | if (events_.empty()) |
| 56 | return; |
| 57 | Event event = events_[0]; |
| 58 | events_.erase(events_.begin()); |
| 59 | ++processed_events_; |
| 60 | if (event.task) { |
| 61 | event.task->Run(); |
| 62 | delete event.task; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | // Adds an event to the queue. When "handled", executes |task|. |
| 67 | // delay_ms is relative to the last event if any, or to Now() otherwise. |
| 68 | void AddEvent(int delay_ms, Task* task) { |
| 69 | base::Time last_time; |
| 70 | if (!events_.empty()) { |
| 71 | last_time = (events_.end()-1)->time; |
| 72 | } else { |
| 73 | last_time = base::Time::NowFromSystemTime(); |
| 74 | } |
| 75 | base::Time future = last_time + base::TimeDelta::FromMilliseconds(delay_ms); |
| 76 | EventInjector::Event event = { future, task }; |
| 77 | events_.push_back(event); |
| 78 | } |
| 79 | |
| 80 | void Reset() { |
| 81 | processed_events_ = 0; |
| 82 | events_.clear(); |
| 83 | } |
| 84 | |
| 85 | int processed_events() const { return processed_events_; } |
| 86 | |
| 87 | private: |
| 88 | struct Event { |
| 89 | base::Time time; |
| 90 | Task* task; |
| 91 | }; |
| 92 | |
| 93 | struct Source : public GSource { |
| 94 | EventInjector* injector; |
| 95 | }; |
| 96 | |
| 97 | static gboolean Prepare(GSource* source, gint* timeout_ms) { |
| 98 | *timeout_ms = static_cast<Source*>(source)->injector->HandlePrepare(); |
| 99 | return FALSE; |
| 100 | } |
| 101 | |
| 102 | static gboolean Check(GSource* source) { |
| 103 | return static_cast<Source*>(source)->injector->HandleCheck(); |
| 104 | } |
| 105 | |
| 106 | static gboolean Dispatch(GSource* source, |
| 107 | GSourceFunc unused_func, |
| 108 | gpointer unused_data) { |
| 109 | static_cast<Source*>(source)->injector->HandleDispatch(); |
| 110 | return TRUE; |
| 111 | } |
| 112 | |
| 113 | Source* source_; |
| 114 | std::vector<Event> events_; |
| 115 | int processed_events_; |
| 116 | static GSourceFuncs SourceFuncs; |
| 117 | DISALLOW_COPY_AND_ASSIGN(EventInjector); |
| 118 | }; |
| 119 | |
| 120 | GSourceFuncs EventInjector::SourceFuncs = { |
| 121 | EventInjector::Prepare, |
| 122 | EventInjector::Check, |
| 123 | EventInjector::Dispatch, |
| 124 | NULL |
| 125 | }; |
| 126 | |
| 127 | // Does nothing. This function can be called from a task. |
| 128 | void DoNothing() { |
| 129 | } |
| 130 | |
| 131 | void IncrementInt(int *value) { |
| 132 | ++*value; |
| 133 | } |
| 134 | |
| 135 | // Checks how many events have been processed by the injector. |
| 136 | void ExpectProcessedEvents(EventInjector* injector, int count) { |
| 137 | EXPECT_EQ(injector->processed_events(), count); |
| 138 | } |
| 139 | |
| 140 | // Quits the current message loop. |
| 141 | void QuitMessageLoop() { |
| 142 | MessageLoop::current()->Quit(); |
| 143 | } |
| 144 | |
| 145 | // Returns a new task that quits the main loop. |
| 146 | Task* NewQuitTask() { |
| 147 | return NewRunnableFunction(QuitMessageLoop); |
| 148 | } |
| 149 | |
| 150 | // Posts a task on the current message loop. |
| 151 | void PostMessageLoopTask(const tracked_objects::Location& from_here, |
| 152 | Task* task) { |
| 153 | MessageLoop::current()->PostTask(from_here, task); |
| 154 | } |
| 155 | |
| 156 | // Test fixture. |
| 157 | class MessagePumpGLibTest : public testing::Test { |
| 158 | public: |
| 159 | MessagePumpGLibTest() : loop_(NULL), injector_(NULL) { } |
| 160 | |
| 161 | virtual void SetUp() { |
| 162 | loop_ = new MessageLoop(MessageLoop::TYPE_UI); |
| 163 | injector_ = new EventInjector(); |
| 164 | } |
| 165 | |
| 166 | virtual void TearDown() { |
| 167 | delete injector_; |
| 168 | injector_ = NULL; |
| 169 | delete loop_; |
| 170 | loop_ = NULL; |
| 171 | } |
| 172 | |
| 173 | MessageLoop* loop() const { return loop_; } |
| 174 | EventInjector* injector() const { return injector_; } |
| 175 | |
| 176 | private: |
| 177 | MessageLoop* loop_; |
| 178 | EventInjector* injector_; |
| 179 | DISALLOW_COPY_AND_ASSIGN(MessagePumpGLibTest); |
| 180 | }; |
| 181 | |
| 182 | } // namespace |
| 183 | |
| 184 | // EventInjector is expected to always live longer than the runnable methods. |
[email protected] | c56428f2 | 2010-06-16 02:17:23 | [diff] [blame] | 185 | DISABLE_RUNNABLE_METHOD_REFCOUNT(EventInjector); |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 186 | |
| 187 | TEST_F(MessagePumpGLibTest, TestQuit) { |
| 188 | // Checks that Quit works and that the basic infrastructure is working. |
| 189 | |
| 190 | // Quit from a task |
| 191 | loop()->PostTask(FROM_HERE, NewQuitTask()); |
| 192 | loop()->Run(); |
| 193 | EXPECT_EQ(0, injector()->processed_events()); |
| 194 | |
| 195 | injector()->Reset(); |
| 196 | // Quit from an event |
| 197 | injector()->AddEvent(0, NewQuitTask()); |
| 198 | loop()->Run(); |
| 199 | EXPECT_EQ(1, injector()->processed_events()); |
| 200 | } |
| 201 | |
| 202 | TEST_F(MessagePumpGLibTest, TestEventTaskInterleave) { |
| 203 | // Checks that tasks posted by events are executed before the next event if |
| 204 | // the posted task queue is empty. |
| 205 | // MessageLoop doesn't make strong guarantees that it is the case, but the |
| 206 | // current implementation ensures it and the tests below rely on it. |
| 207 | // If changes cause this test to fail, it is reasonable to change it, but |
| 208 | // TestWorkWhileWaitingForEvents and TestEventsWhileWaitingForWork have to be |
| 209 | // changed accordingly, otherwise they can become flaky. |
| 210 | injector()->AddEvent(0, NewRunnableFunction(DoNothing)); |
| 211 | Task* check_task = NewRunnableFunction(ExpectProcessedEvents, injector(), 2); |
| 212 | Task* posted_task = NewRunnableFunction(PostMessageLoopTask, |
| 213 | FROM_HERE, check_task); |
| 214 | injector()->AddEvent(0, posted_task); |
| 215 | injector()->AddEvent(0, NewRunnableFunction(DoNothing)); |
| 216 | injector()->AddEvent(0, NewQuitTask()); |
| 217 | loop()->Run(); |
| 218 | EXPECT_EQ(4, injector()->processed_events()); |
| 219 | |
| 220 | injector()->Reset(); |
| 221 | injector()->AddEvent(0, NewRunnableFunction(DoNothing)); |
| 222 | check_task = NewRunnableFunction(ExpectProcessedEvents, injector(), 2); |
| 223 | posted_task = NewRunnableFunction(PostMessageLoopTask, FROM_HERE, check_task); |
| 224 | injector()->AddEvent(0, posted_task); |
| 225 | injector()->AddEvent(10, NewRunnableFunction(DoNothing)); |
| 226 | injector()->AddEvent(0, NewQuitTask()); |
| 227 | loop()->Run(); |
| 228 | EXPECT_EQ(4, injector()->processed_events()); |
| 229 | } |
| 230 | |
| 231 | TEST_F(MessagePumpGLibTest, TestWorkWhileWaitingForEvents) { |
| 232 | int task_count = 0; |
| 233 | // Tests that we process tasks while waiting for new events. |
| 234 | // The event queue is empty at first. |
| 235 | for (int i = 0; i < 10; ++i) { |
| 236 | loop()->PostTask(FROM_HERE, NewRunnableFunction(IncrementInt, &task_count)); |
| 237 | } |
| 238 | // After all the previous tasks have executed, enqueue an event that will |
| 239 | // quit. |
| 240 | loop()->PostTask( |
| 241 | FROM_HERE, NewRunnableMethod(injector(), &EventInjector::AddEvent, |
| 242 | 0, NewQuitTask())); |
| 243 | loop()->Run(); |
| 244 | ASSERT_EQ(10, task_count); |
| 245 | EXPECT_EQ(1, injector()->processed_events()); |
| 246 | |
| 247 | // Tests that we process delayed tasks while waiting for new events. |
| 248 | injector()->Reset(); |
| 249 | task_count = 0; |
| 250 | for (int i = 0; i < 10; ++i) { |
| 251 | loop()->PostDelayedTask( |
| 252 | FROM_HERE, NewRunnableFunction(IncrementInt, &task_count), 10*i); |
| 253 | } |
| 254 | // After all the previous tasks have executed, enqueue an event that will |
| 255 | // quit. |
| 256 | // This relies on the fact that delayed tasks are executed in delay order. |
| 257 | // That is verified in message_loop_unittest.cc. |
| 258 | loop()->PostDelayedTask( |
| 259 | FROM_HERE, NewRunnableMethod(injector(), &EventInjector::AddEvent, |
| 260 | 10, NewQuitTask()), 150); |
| 261 | loop()->Run(); |
| 262 | ASSERT_EQ(10, task_count); |
| 263 | EXPECT_EQ(1, injector()->processed_events()); |
| 264 | } |
| 265 | |
| 266 | TEST_F(MessagePumpGLibTest, TestEventsWhileWaitingForWork) { |
| 267 | // Tests that we process events while waiting for work. |
| 268 | // The event queue is empty at first. |
| 269 | for (int i = 0; i < 10; ++i) { |
| 270 | injector()->AddEvent(0, NULL); |
| 271 | } |
| 272 | // After all the events have been processed, post a task that will check that |
| 273 | // the events have been processed (note: the task executes after the event |
| 274 | // that posted it has been handled, so we expect 11 at that point). |
| 275 | Task* check_task = NewRunnableFunction(ExpectProcessedEvents, injector(), 11); |
| 276 | Task* posted_task = NewRunnableFunction(PostMessageLoopTask, |
| 277 | FROM_HERE, check_task); |
| 278 | injector()->AddEvent(10, posted_task); |
| 279 | |
| 280 | // And then quit (relies on the condition tested by TestEventTaskInterleave). |
| 281 | injector()->AddEvent(10, NewQuitTask()); |
| 282 | loop()->Run(); |
| 283 | |
| 284 | EXPECT_EQ(12, injector()->processed_events()); |
| 285 | } |
| 286 | |
| 287 | namespace { |
| 288 | |
| 289 | // This class is a helper for the concurrent events / posted tasks test below. |
| 290 | // It will quit the main loop once enough tasks and events have been processed, |
| 291 | // while making sure there is always work to do and events in the queue. |
| 292 | class ConcurrentHelper : public base::RefCounted<ConcurrentHelper> { |
| 293 | public: |
[email protected] | 2fdc86a | 2010-01-26 23:08:02 | [diff] [blame] | 294 | explicit ConcurrentHelper(EventInjector* injector) |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 295 | : injector_(injector), |
| 296 | event_count_(kStartingEventCount), |
| 297 | task_count_(kStartingTaskCount) { |
| 298 | } |
| 299 | |
| 300 | void FromTask() { |
| 301 | if (task_count_ > 0) { |
| 302 | --task_count_; |
| 303 | } |
| 304 | if (task_count_ == 0 && event_count_ == 0) { |
| 305 | MessageLoop::current()->Quit(); |
| 306 | } else { |
| 307 | MessageLoop::current()->PostTask( |
| 308 | FROM_HERE, NewRunnableMethod(this, &ConcurrentHelper::FromTask)); |
| 309 | } |
| 310 | } |
| 311 | |
| 312 | void FromEvent() { |
| 313 | if (event_count_ > 0) { |
| 314 | --event_count_; |
| 315 | } |
| 316 | if (task_count_ == 0 && event_count_ == 0) { |
| 317 | MessageLoop::current()->Quit(); |
| 318 | } else { |
| 319 | injector_->AddEvent( |
| 320 | 0, NewRunnableMethod(this, &ConcurrentHelper::FromEvent)); |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | int event_count() const { return event_count_; } |
| 325 | int task_count() const { return task_count_; } |
| 326 | |
| 327 | private: |
[email protected] | 877d55d | 2009-11-05 21:53:08 | [diff] [blame] | 328 | friend class base::RefCounted<ConcurrentHelper>; |
| 329 | |
| 330 | ~ConcurrentHelper() {} |
| 331 | |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 332 | static const int kStartingEventCount = 20; |
| 333 | static const int kStartingTaskCount = 20; |
| 334 | |
| 335 | EventInjector* injector_; |
| 336 | int event_count_; |
| 337 | int task_count_; |
| 338 | }; |
| 339 | |
| 340 | } // namespace |
| 341 | |
| 342 | TEST_F(MessagePumpGLibTest, TestConcurrentEventPostedTask) { |
| 343 | // Tests that posted tasks don't starve events, nor the opposite. |
| 344 | // We use the helper class above. We keep both event and posted task queues |
| 345 | // full, the helper verifies that both tasks and events get processed. |
| 346 | // If that is not the case, either event_count_ or task_count_ will not get |
| 347 | // to 0, and MessageLoop::Quit() will never be called. |
| 348 | scoped_refptr<ConcurrentHelper> helper = new ConcurrentHelper(injector()); |
| 349 | |
| 350 | // Add 2 events to the queue to make sure it is always full (when we remove |
| 351 | // the event before processing it). |
| 352 | injector()->AddEvent( |
| 353 | 0, NewRunnableMethod(helper.get(), &ConcurrentHelper::FromEvent)); |
| 354 | injector()->AddEvent( |
| 355 | 0, NewRunnableMethod(helper.get(), &ConcurrentHelper::FromEvent)); |
| 356 | |
| 357 | // Similarly post 2 tasks. |
| 358 | loop()->PostTask( |
| 359 | FROM_HERE, NewRunnableMethod(helper.get(), &ConcurrentHelper::FromTask)); |
| 360 | loop()->PostTask( |
| 361 | FROM_HERE, NewRunnableMethod(helper.get(), &ConcurrentHelper::FromTask)); |
| 362 | |
| 363 | loop()->Run(); |
| 364 | EXPECT_EQ(0, helper->event_count()); |
| 365 | EXPECT_EQ(0, helper->task_count()); |
| 366 | } |
| 367 | |
| 368 | namespace { |
| 369 | |
| 370 | void AddEventsAndDrainGLib(EventInjector* injector) { |
| 371 | // Add a couple of dummy events |
| 372 | injector->AddEvent(0, NULL); |
| 373 | injector->AddEvent(0, NULL); |
| 374 | // Then add an event that will quit the main loop. |
| 375 | injector->AddEvent(0, NewQuitTask()); |
| 376 | |
| 377 | // Post a couple of dummy tasks |
| 378 | MessageLoop::current()->PostTask(FROM_HERE, NewRunnableFunction(DoNothing)); |
| 379 | MessageLoop::current()->PostTask(FROM_HERE, NewRunnableFunction(DoNothing)); |
| 380 | |
| 381 | // Drain the events |
| 382 | while (g_main_context_pending(NULL)) { |
| 383 | g_main_context_iteration(NULL, FALSE); |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | } // namespace |
| 388 | |
| 389 | TEST_F(MessagePumpGLibTest, TestDrainingGLib) { |
| 390 | // Tests that draining events using GLib works. |
| 391 | loop()->PostTask( |
| 392 | FROM_HERE, NewRunnableFunction(AddEventsAndDrainGLib, injector())); |
| 393 | loop()->Run(); |
| 394 | |
| 395 | EXPECT_EQ(3, injector()->processed_events()); |
| 396 | } |
| 397 | |
| 398 | |
| 399 | namespace { |
| 400 | |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 401 | #if defined(TOOLKIT_USES_GTK) |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 402 | void AddEventsAndDrainGtk(EventInjector* injector) { |
| 403 | // Add a couple of dummy events |
| 404 | injector->AddEvent(0, NULL); |
| 405 | injector->AddEvent(0, NULL); |
| 406 | // Then add an event that will quit the main loop. |
| 407 | injector->AddEvent(0, NewQuitTask()); |
| 408 | |
| 409 | // Post a couple of dummy tasks |
| 410 | MessageLoop::current()->PostTask(FROM_HERE, NewRunnableFunction(DoNothing)); |
| 411 | MessageLoop::current()->PostTask(FROM_HERE, NewRunnableFunction(DoNothing)); |
| 412 | |
| 413 | // Drain the events |
| 414 | while (gtk_events_pending()) { |
| 415 | gtk_main_iteration(); |
| 416 | } |
| 417 | } |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 418 | #endif |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 419 | |
| 420 | } // namespace |
| 421 | |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 422 | #if defined(TOOLKIT_USES_GTK) |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 423 | TEST_F(MessagePumpGLibTest, TestDrainingGtk) { |
| 424 | // Tests that draining events using Gtk works. |
| 425 | loop()->PostTask( |
| 426 | FROM_HERE, NewRunnableFunction(AddEventsAndDrainGtk, injector())); |
| 427 | loop()->Run(); |
| 428 | |
| 429 | EXPECT_EQ(3, injector()->processed_events()); |
| 430 | } |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 431 | #endif |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 432 | |
| 433 | namespace { |
| 434 | |
| 435 | // Helper class that lets us run the GLib message loop. |
| 436 | class GLibLoopRunner : public base::RefCounted<GLibLoopRunner> { |
| 437 | public: |
| 438 | GLibLoopRunner() : quit_(false) { } |
| 439 | |
| 440 | void RunGLib() { |
| 441 | while (!quit_) { |
| 442 | g_main_context_iteration(NULL, TRUE); |
| 443 | } |
| 444 | } |
| 445 | |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 446 | void RunLoop() { |
| 447 | #if defined(TOOLKIT_USES_GTK) |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 448 | while (!quit_) { |
| 449 | gtk_main_iteration(); |
| 450 | } |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 451 | #else |
| 452 | while (!quit_) { |
| 453 | g_main_context_iteration(NULL, TRUE); |
| 454 | } |
| 455 | #endif |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 456 | } |
| 457 | |
| 458 | void Quit() { |
| 459 | quit_ = true; |
| 460 | } |
| 461 | |
| 462 | void Reset() { |
| 463 | quit_ = false; |
| 464 | } |
| 465 | |
| 466 | private: |
[email protected] | 877d55d | 2009-11-05 21:53:08 | [diff] [blame] | 467 | friend class base::RefCounted<GLibLoopRunner>; |
| 468 | |
| 469 | ~GLibLoopRunner() {} |
| 470 | |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 471 | bool quit_; |
| 472 | }; |
| 473 | |
| 474 | void TestGLibLoopInternal(EventInjector* injector) { |
| 475 | // Allow tasks to be processed from 'native' event loops. |
| 476 | MessageLoop::current()->SetNestableTasksAllowed(true); |
| 477 | scoped_refptr<GLibLoopRunner> runner = new GLibLoopRunner(); |
| 478 | |
| 479 | int task_count = 0; |
| 480 | // Add a couple of dummy events |
| 481 | injector->AddEvent(0, NULL); |
| 482 | injector->AddEvent(0, NULL); |
| 483 | // Post a couple of dummy tasks |
| 484 | MessageLoop::current()->PostTask( |
| 485 | FROM_HERE, NewRunnableFunction(IncrementInt, &task_count)); |
| 486 | MessageLoop::current()->PostTask( |
| 487 | FROM_HERE, NewRunnableFunction(IncrementInt, &task_count)); |
| 488 | // Delayed events |
| 489 | injector->AddEvent(10, NULL); |
| 490 | injector->AddEvent(10, NULL); |
| 491 | // Delayed work |
| 492 | MessageLoop::current()->PostDelayedTask( |
| 493 | FROM_HERE, NewRunnableFunction(IncrementInt, &task_count), 30); |
| 494 | MessageLoop::current()->PostDelayedTask( |
| 495 | FROM_HERE, NewRunnableMethod(runner.get(), &GLibLoopRunner::Quit), 40); |
| 496 | |
| 497 | // Run a nested, straight GLib message loop. |
| 498 | runner->RunGLib(); |
| 499 | |
| 500 | ASSERT_EQ(3, task_count); |
| 501 | EXPECT_EQ(4, injector->processed_events()); |
| 502 | MessageLoop::current()->Quit(); |
| 503 | } |
| 504 | |
| 505 | void TestGtkLoopInternal(EventInjector* injector) { |
| 506 | // Allow tasks to be processed from 'native' event loops. |
| 507 | MessageLoop::current()->SetNestableTasksAllowed(true); |
| 508 | scoped_refptr<GLibLoopRunner> runner = new GLibLoopRunner(); |
| 509 | |
| 510 | int task_count = 0; |
| 511 | // Add a couple of dummy events |
| 512 | injector->AddEvent(0, NULL); |
| 513 | injector->AddEvent(0, NULL); |
| 514 | // Post a couple of dummy tasks |
| 515 | MessageLoop::current()->PostTask( |
| 516 | FROM_HERE, NewRunnableFunction(IncrementInt, &task_count)); |
| 517 | MessageLoop::current()->PostTask( |
| 518 | FROM_HERE, NewRunnableFunction(IncrementInt, &task_count)); |
| 519 | // Delayed events |
| 520 | injector->AddEvent(10, NULL); |
| 521 | injector->AddEvent(10, NULL); |
| 522 | // Delayed work |
| 523 | MessageLoop::current()->PostDelayedTask( |
| 524 | FROM_HERE, NewRunnableFunction(IncrementInt, &task_count), 30); |
| 525 | MessageLoop::current()->PostDelayedTask( |
| 526 | FROM_HERE, NewRunnableMethod(runner.get(), &GLibLoopRunner::Quit), 40); |
| 527 | |
| 528 | // Run a nested, straight Gtk message loop. |
[email protected] | 258dca4 | 2011-09-21 00:17:19 | [diff] [blame^] | 529 | runner->RunLoop(); |
[email protected] | b44d5cc | 2009-06-15 10:30:44 | [diff] [blame] | 530 | |
| 531 | ASSERT_EQ(3, task_count); |
| 532 | EXPECT_EQ(4, injector->processed_events()); |
| 533 | MessageLoop::current()->Quit(); |
| 534 | } |
| 535 | |
| 536 | } // namespace |
| 537 | |
| 538 | TEST_F(MessagePumpGLibTest, TestGLibLoop) { |
| 539 | // Tests that events and posted tasks are correctly exectuted if the message |
| 540 | // loop is not run by MessageLoop::Run() but by a straight GLib loop. |
| 541 | // Note that in this case we don't make strong guarantees about niceness |
| 542 | // between events and posted tasks. |
| 543 | loop()->PostTask(FROM_HERE, |
| 544 | NewRunnableFunction(TestGLibLoopInternal, injector())); |
| 545 | loop()->Run(); |
| 546 | } |
| 547 | |
| 548 | TEST_F(MessagePumpGLibTest, TestGtkLoop) { |
| 549 | // Tests that events and posted tasks are correctly exectuted if the message |
| 550 | // loop is not run by MessageLoop::Run() but by a straight Gtk loop. |
| 551 | // Note that in this case we don't make strong guarantees about niceness |
| 552 | // between events and posted tasks. |
| 553 | loop()->PostTask(FROM_HERE, |
| 554 | NewRunnableFunction(TestGtkLoopInternal, injector())); |
| 555 | loop()->Run(); |
| 556 | } |