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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 #ifndef CONTENT_CHILD_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_ | |
| 6 #define CONTENT_CHILD_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_ | |
| 7 | |
| 8 #include "base/bind.h" | |
| 9 #include "base/callback.h" | |
| 10 #include "base/memory/ref_counted.h" | |
| 11 #include "base/single_thread_task_runner.h" | |
| 12 #include "base/time/time.h" | |
| 13 | |
| 14 namespace content { | |
| 15 | |
| 16 // A SingleThreadIdleTaskRunner is a task runner for running idle tasks. Idle | |
| 17 // tasks have an unbound argument which is bound to a deadline | |
| 18 // (in base::TimeTicks) when they are run. The idle task is expected to | |
| 19 // complete by this deadline. | |
| 20 class SingleThreadIdleTaskRunner | |
| 21 : public base::RefCountedThreadSafe<SingleThreadIdleTaskRunner> { | |
| 22 public: | |
| 23 typedef base::Callback<void(base::TimeTicks)> IdleTask; | |
| 24 | |
| 25 // NOTE Category strings must have application lifetime (statics or | |
| 26 // literals). They may not include " chars. | |
| 27 SingleThreadIdleTaskRunner( | |
| 28 scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner, | |
| 29 scoped_refptr<base::SingleThreadTaskRunner> after_wakeup_task_runner, | |
| 30 base::Callback<void(base::TimeTicks*)> deadline_supplier, | |
| 31 const char* tracing_category); | |
| 32 | |
| 33 virtual void PostIdleTask(const tracked_objects::Location& from_here, | |
| 34 const IdleTask& idle_task); | |
| 35 | |
| 36 virtual void PostNonNestableIdleTask( | |
| 37 const tracked_objects::Location& from_here, | |
| 38 const IdleTask& idle_task); | |
| 39 | |
| 40 virtual void PostIdleTaskAfterWakeup( | |
| 41 const tracked_objects::Location& from_here, | |
| 42 const IdleTask& idle_task); | |
| 43 | |
| 44 bool RunsTasksOnCurrentThread() const; | |
| 45 | |
| 46 protected: | |
| 47 virtual ~SingleThreadIdleTaskRunner(); | |
| 48 | |
| 49 private: | |
| 50 friend class base::RefCountedThreadSafe<SingleThreadIdleTaskRunner>; | |
| 51 | |
| 52 void RunTask(IdleTask idle_task); | |
| 53 | |
| 54 scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner_; | |
| 55 scoped_refptr<base::SingleThreadTaskRunner> after_wakeup_task_runner_; | |
| 56 base::Callback<void(base::TimeTicks*)> deadline_supplier_; | |
| 57 const char* tracing_category_; | |
| 58 base::WeakPtr<SingleThreadIdleTaskRunner> weak_scheduler_ptr_; | |
| 59 base::WeakPtrFactory<SingleThreadIdleTaskRunner> weak_factory_; | |
| 60 DISALLOW_COPY_AND_ASSIGN(SingleThreadIdleTaskRunner); | |
| 61 }; | |
| 62 | |
| 63 } // namespace content | |
| 64 | |
| 65 #endif // CONTENT_CHILD_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_ | |
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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