content/renderer/scheduler/single_thread_idle_task_runner.h - Issue 1025323003: Introduce a SchedulerHelper in content/child/scheduler

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Side by Side Diff: content/renderer/scheduler/single_thread_idle_task_runner.h

Issue 1025323003: Introduce a SchedulerHelper in content/child/scheduler (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Sami's suggestions Created 5 years, 8 months ago

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« content/renderer/scheduler/renderer_scheduler_impl.cc ('K') | « content/renderer/scheduler/renderer_task_queue_selector_unittest.cc ('k') | content/renderer/scheduler/single_thread_idle_task_runner.cc » ('j') | no next file with comments »
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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_RENDERER_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_

6 #define CONTENT_RENDERER_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 SingleThreadIdleTaskRunner(

26 scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner,

27 scoped_refptr<base::SingleThreadTaskRunner> after_wakeup_task_runner,

28 base::Callback<void(base::TimeTicks*)> deadline_supplier);

29

30 virtual void PostIdleTask(const tracked_objects::Location& from_here,

31 const IdleTask& idle_task);

32

33 virtual void PostNonNestableIdleTask(

34 const tracked_objects::Location& from_here,

35 const IdleTask& idle_task);

36

37 virtual void PostIdleTaskAfterWakeup(

38 const tracked_objects::Location& from_here,

39 const IdleTask& idle_task);

40

41 bool RunsTasksOnCurrentThread() const;

42

43 protected:

44 virtual ~SingleThreadIdleTaskRunner();

45

46 private:

47 friend class base::RefCountedThreadSafe<SingleThreadIdleTaskRunner>;

48

49 void RunTask(IdleTask idle_task);

50

51 scoped_refptr<base::SingleThreadTaskRunner> idle_priority_task_runner_;

52 scoped_refptr<base::SingleThreadTaskRunner> after_wakeup_task_runner_;

53 base::Callback<void(base::TimeTicks*)> deadline_supplier_;

54 DISALLOW_COPY_AND_ASSIGN(SingleThreadIdleTaskRunner);

55 };

56

57 } // namespace content

58

59 #endif // CONTENT_RENDERER_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_

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