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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "platform/scheduler/base/task_queue_manager.h" | 5 #include "platform/scheduler/base/task_queue_manager.h" |
6 | 6 |
7 #include <queue> | 7 #include <queue> |
8 #include <set> | 8 #include <set> |
9 | 9 |
10 #include "base/bind.h" | 10 #include "base/bind.h" |
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31 | 31 |
32 void RecordImmediateTaskQueueingDuration(tracked_objects::Duration duration) { | 32 void RecordImmediateTaskQueueingDuration(tracked_objects::Duration duration) { |
33 UMA_HISTOGRAM_TIMES( | 33 UMA_HISTOGRAM_TIMES( |
34 "RendererScheduler.TaskQueueManager.ImmediateTaskQueueingDuration", | 34 "RendererScheduler.TaskQueueManager.ImmediateTaskQueueingDuration", |
35 base::TimeDelta::FromMilliseconds(duration.InMilliseconds())); | 35 base::TimeDelta::FromMilliseconds(duration.InMilliseconds())); |
36 } | 36 } |
37 | 37 |
38 double MonotonicTimeInSeconds(base::TimeTicks timeTicks) { | 38 double MonotonicTimeInSeconds(base::TimeTicks timeTicks) { |
39 return (timeTicks - base::TimeTicks()).InSecondsF(); | 39 return (timeTicks - base::TimeTicks()).InSecondsF(); |
40 } | 40 } |
| 41 |
| 42 // Converts a OnceClosure to a RepeatingClosure. It hits CHECK failure to run |
| 43 // the resulting RepeatingClosure more than once. |
| 44 // TODO(tzik): This will be unneeded after the Closure-to-OnceClosure migration |
| 45 // on TaskRunner finished. Remove it once it gets unneeded. |
| 46 base::RepeatingClosure UnsafeConvertOnceClosureToRepeating( |
| 47 base::OnceClosure cb) { |
| 48 return base::BindRepeating([](base::OnceClosure cb) { std::move(cb).Run(); }, |
| 49 base::Passed(&cb)); |
| 50 } |
41 } | 51 } |
42 | 52 |
43 TaskQueueManager::TaskQueueManager( | 53 TaskQueueManager::TaskQueueManager( |
44 scoped_refptr<TaskQueueManagerDelegate> delegate, | 54 scoped_refptr<TaskQueueManagerDelegate> delegate, |
45 const char* tracing_category, | 55 const char* tracing_category, |
46 const char* disabled_by_default_tracing_category, | 56 const char* disabled_by_default_tracing_category, |
47 const char* disabled_by_default_verbose_tracing_category) | 57 const char* disabled_by_default_verbose_tracing_category) |
48 : real_time_domain_(new RealTimeDomain(tracing_category)), | 58 : real_time_domain_(new RealTimeDomain(tracing_category)), |
49 delegate_(delegate), | 59 delegate_(delegate), |
50 task_was_run_on_quiescence_monitored_queue_(false), | 60 task_was_run_on_quiescence_monitored_queue_(false), |
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312 | 322 |
313 internal::TaskQueueImpl* queue = work_queue->task_queue(); | 323 internal::TaskQueueImpl* queue = work_queue->task_queue(); |
314 if (queue->GetQuiescenceMonitored()) | 324 if (queue->GetQuiescenceMonitored()) |
315 task_was_run_on_quiescence_monitored_queue_ = true; | 325 task_was_run_on_quiescence_monitored_queue_ = true; |
316 | 326 |
317 if (!pending_task.nestable && delegate_->IsNested()) { | 327 if (!pending_task.nestable && delegate_->IsNested()) { |
318 // Defer non-nestable work to the main task runner. NOTE these tasks can be | 328 // Defer non-nestable work to the main task runner. NOTE these tasks can be |
319 // arbitrarily delayed so the additional delay should not be a problem. | 329 // arbitrarily delayed so the additional delay should not be a problem. |
320 // TODO(skyostil): Figure out a way to not forget which task queue the | 330 // TODO(skyostil): Figure out a way to not forget which task queue the |
321 // task is associated with. See http://crbug.com/522843. | 331 // task is associated with. See http://crbug.com/522843. |
322 delegate_->PostNonNestableTask(pending_task.posted_from, | 332 // TODO(tzik): Remove base::UnsafeConvertOnceClosureToRepeating once |
323 std::move(pending_task.task)); | 333 // TaskRunners have migrated to OnceClosure. |
| 334 delegate_->PostNonNestableTask( |
| 335 pending_task.posted_from, |
| 336 UnsafeConvertOnceClosureToRepeating(std::move(pending_task.task))); |
324 return ProcessTaskResult::DEFERRED; | 337 return ProcessTaskResult::DEFERRED; |
325 } | 338 } |
326 | 339 |
327 MaybeRecordTaskDelayHistograms(pending_task, queue); | 340 MaybeRecordTaskDelayHistograms(pending_task, queue); |
328 | 341 |
329 TRACE_TASK_EXECUTION("TaskQueueManager::ProcessTaskFromWorkQueue", | 342 TRACE_TASK_EXECUTION("TaskQueueManager::ProcessTaskFromWorkQueue", |
330 pending_task); | 343 pending_task); |
331 if (queue->GetShouldNotifyObservers()) { | 344 if (queue->GetShouldNotifyObservers()) { |
332 FOR_EACH_OBSERVER(base::MessageLoop::TaskObserver, task_observers_, | 345 FOR_EACH_OBSERVER(base::MessageLoop::TaskObserver, task_observers_, |
333 WillProcessTask(pending_task)); | 346 WillProcessTask(pending_task)); |
334 queue->NotifyWillProcessTask(pending_task); | 347 queue->NotifyWillProcessTask(pending_task); |
335 } | 348 } |
336 TRACE_EVENT1(tracing_category_, "TaskQueueManager::RunTask", "queue", | 349 TRACE_EVENT1(tracing_category_, "TaskQueueManager::RunTask", "queue", |
337 queue->GetName()); | 350 queue->GetName()); |
338 // NOTE when TaskQueues get unregistered a reference ends up getting retained | 351 // NOTE when TaskQueues get unregistered a reference ends up getting retained |
339 // by |queues_to_delete_| which is cleared at the top of |DoWork|. This means | 352 // by |queues_to_delete_| which is cleared at the top of |DoWork|. This means |
340 // we are OK to use raw pointers here. | 353 // we are OK to use raw pointers here. |
341 internal::TaskQueueImpl* prev_executing_task_queue = | 354 internal::TaskQueueImpl* prev_executing_task_queue = |
342 currently_executing_task_queue_; | 355 currently_executing_task_queue_; |
343 currently_executing_task_queue_ = queue; | 356 currently_executing_task_queue_ = queue; |
344 task_annotator_.RunTask("TaskQueueManager::PostTask", pending_task); | 357 task_annotator_.RunTask("TaskQueueManager::PostTask", &pending_task); |
345 // Detect if the TaskQueueManager just got deleted. If this happens we must | 358 // Detect if the TaskQueueManager just got deleted. If this happens we must |
346 // not access any member variables after this point. | 359 // not access any member variables after this point. |
347 if (protect->HasOneRef()) | 360 if (protect->HasOneRef()) |
348 return ProcessTaskResult::TASK_QUEUE_MANAGER_DELETED; | 361 return ProcessTaskResult::TASK_QUEUE_MANAGER_DELETED; |
349 | 362 |
350 currently_executing_task_queue_ = prev_executing_task_queue; | 363 currently_executing_task_queue_ = prev_executing_task_queue; |
351 | 364 |
352 if (queue->GetShouldNotifyObservers()) { | 365 if (queue->GetShouldNotifyObservers()) { |
353 FOR_EACH_OBSERVER(base::MessageLoop::TaskObserver, task_observers_, | 366 FOR_EACH_OBSERVER(base::MessageLoop::TaskObserver, task_observers_, |
354 DidProcessTask(pending_task)); | 367 DidProcessTask(pending_task)); |
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465 DCHECK(main_thread_checker_.CalledOnValidThread()); | 478 DCHECK(main_thread_checker_.CalledOnValidThread()); |
466 DCHECK(!work_queue->Empty()); | 479 DCHECK(!work_queue->Empty()); |
467 if (observer_) { | 480 if (observer_) { |
468 observer_->OnTriedToExecuteBlockedTask(*work_queue->task_queue(), | 481 observer_->OnTriedToExecuteBlockedTask(*work_queue->task_queue(), |
469 *work_queue->GetFrontTask()); | 482 *work_queue->GetFrontTask()); |
470 } | 483 } |
471 } | 484 } |
472 | 485 |
473 } // namespace scheduler | 486 } // namespace scheduler |
474 } // namespace blink | 487 } // namespace blink |
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