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// Copyright 2015 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 COMPONENTS_SCHEDULER_CHILD_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
#define COMPONENTS_SCHEDULER_CHILD_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
#include "base/single_thread_task_runner.h"
#include "base/message_loop/message_loop.h"
#include "components/scheduler/scheduler_export.h"
namespace scheduler {
// A single thread task runner which exposes whether it is running nested.
class SCHEDULER_EXPORT NestableSingleThreadTaskRunner
: public base::SingleThreadTaskRunner {
public:
NestableSingleThreadTaskRunner() {}
// Returns true if the task runner is nested (i.e., running a run loop within
// a nested task).
virtual bool IsNested() const = 0;
protected:
~NestableSingleThreadTaskRunner() override {}
DISALLOW_COPY_AND_ASSIGN(NestableSingleThreadTaskRunner);
};
} // namespace scheduler
#endif // COMPONENTS_SCHEDULER_CHILD_NESTABLE_SINGLE_THREAD_TASK_RUNNER_H_
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