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| 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 | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "content/child/scheduler/single_thread_idle_task_runner.h" | |
| 6 | |
| 7 #include "base/location.h" | |
| 8 #include "base/trace_event/trace_event.h" | |
| 9 | |
| 10 namespace content { | |
| 11 | |
| 12 SingleThreadIdleTaskRunner::SingleThreadIdleTaskRunner( | |
| 13 scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner, | |
| 14 scoped_refptr<base::SingleThreadTaskRunner> after_wakeup_task_runner, | |
| 15 base::Callback<void(base::TimeTicks*)> deadline_supplier, | |
| 16 const char* tracing_category) | |
| 17 : idle_priority_task_runner_(idle_priority_task_runner), | |
| 18 after_wakeup_task_runner_(after_wakeup_task_runner), | |
| 19 deadline_supplier_(deadline_supplier), | |
| 20 tracing_category_(tracing_category), | |
| 21 weak_factory_(this) { | |
| 22 DCHECK(!idle_priority_task_runner_ || | |
| 23 idle_priority_task_runner_->RunsTasksOnCurrentThread()); | |
| 24 DCHECK(!after_wakeup_task_runner_ || | |
| 25 after_wakeup_task_runner_->RunsTasksOnCurrentThread()); | |
| 26 weak_scheduler_ptr_ = weak_factory_.GetWeakPtr(); | |
| 27 } | |
| 28 | |
| 29 SingleThreadIdleTaskRunner::~SingleThreadIdleTaskRunner() { | |
| 30 } | |
| 31 | |
| 32 bool SingleThreadIdleTaskRunner::RunsTasksOnCurrentThread() const { | |
| 33 return idle_priority_task_runner_->RunsTasksOnCurrentThread(); | |
| 34 } | |
| 35 | |
| 36 void SingleThreadIdleTaskRunner::PostIdleTask( | |
| 37 const tracked_objects::Location& from_here, | |
| 38 const IdleTask& idle_task) { | |
| 39 idle_priority_task_runner_->PostTask( | |
| 40 from_here, | |
| 41 base::Bind(&SingleThreadIdleTaskRunner::RunTask, | |
| 42 weak_scheduler_ptr_, idle_task)); | |
| 43 } | |
| 44 | |
| 45 void SingleThreadIdleTaskRunner::PostNonNestableIdleTask( | |
| 46 const tracked_objects::Location& from_here, | |
| 47 const IdleTask& idle_task) { | |
| 48 idle_priority_task_runner_->PostNonNestableTask( | |
| 49 from_here, | |
| 50 base::Bind(&SingleThreadIdleTaskRunner::RunTask, | |
| 51 weak_scheduler_ptr_, idle_task)); | |
| 52 } | |
| 53 | |
| 54 void SingleThreadIdleTaskRunner::PostIdleTaskAfterWakeup( | |
| 55 const tracked_objects::Location& from_here, | |
| 56 const IdleTask& idle_task) { | |
| 57 after_wakeup_task_runner_->PostTask( | |
| 58 FROM_HERE, base::Bind(&SingleThreadIdleTaskRunner::PostIdleTask, | |
| 59 weak_scheduler_ptr_, from_here, idle_task)); | |
| 60 } | |
| 61 | |
| 62 void SingleThreadIdleTaskRunner::RunTask(IdleTask idle_task) { | |
| 63 base::TimeTicks deadline; | |
| 64 deadline_supplier_.Run(&deadline); | |
| 65 TRACE_EVENT1(tracing_category_, "SingleThreadIdleTaskRunner::RunTask", | |
| 66 "allotted_time_ms", | |
| 67 (deadline - base::TimeTicks::Now()).InMillisecondsF()); | |
| 68 idle_task.Run(deadline); | |
| 69 bool is_tracing; | |
| 70 TRACE_EVENT_CATEGORY_GROUP_ENABLED(tracing_category_, &is_tracing); | |
| 71 if (is_tracing && base::TimeTicks::Now() > deadline) { | |
| 72 TRACE_EVENT_INSTANT0(tracing_category_, | |
| 73 "SingleThreadIdleTaskRunner::DidOverrunDeadline", | |
| 74 TRACE_EVENT_SCOPE_THREAD); | |
| 75 } | |
| 76 } | |
| 77 | |
| 78 } // namespace content | |
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Chromium Code Reviews
Issue 1058873010:
Move blink scheduler implementation into a component (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master