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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_RENDERER_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_
#define CONTENT_RENDERER_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_
#include "base/bind.h"
#include "base/callback.h"
#include "base/memory/ref_counted.h"
#include "base/single_thread_task_runner.h"
#include "base/time/time.h"
namespace content {
// A SingleThreadIdleTaskRunner is a task runner for running idle tasks. Idle
// tasks have an unbound argument which is bound to a deadline
// (in base::TimeTicks) when they are run. The idle task is expected to
// complete by this deadline.
class SingleThreadIdleTaskRunner
: public base::RefCountedThreadSafe<SingleThreadIdleTaskRunner> {
public:
typedef base::Callback<void(base::TimeTicks)> IdleTask;
SingleThreadIdleTaskRunner(
scoped_refptr<base::SingleThreadTaskRunner> task_runner,
base::Callback<void(base::TimeTicks*)> deadline_supplier);
virtual void PostIdleTask(const tracked_objects::Location& from_here,
const IdleTask& idle_task);
bool RunsTasksOnCurrentThread() const;
protected:
virtual ~SingleThreadIdleTaskRunner();
private:
friend class base::RefCountedThreadSafe<SingleThreadIdleTaskRunner>;
void RunTask(IdleTask idle_task);
scoped_refptr<base::TaskRunner> task_runner_;
base::Callback<void(base::TimeTicks*)> deadline_supplier_;
DISALLOW_COPY_AND_ASSIGN(SingleThreadIdleTaskRunner);
};
} // namespace content
#endif // CONTENT_RENDERER_SCHEDULER_SINGLE_THREAD_IDLE_TASK_RUNNER_H_
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