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// Copyright 2016 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_RENDERER_AUTO_ADVANCING_VIRTUAL_TIME_DOMAIN_H_
#define COMPONENTS_SCHEDULER_RENDERER_AUTO_ADVANCING_VIRTUAL_TIME_DOMAIN_H_
#include "base/macros.h"
#include "components/scheduler/base/virtual_time_domain.h"
namespace scheduler {
// A time domain that runs tasks sequentially in time order but doesn't sleep
// between delayed tasks.
//
// KEY: A-E are delayed tasks
// | A B C D E (Execution with RealTimeDomain)
// |-----------------------------> time
//
// |ABCDE (Execution with AutoAdvancingVirtualTimeDomain)
// |-----------------------------> time
class SCHEDULER_EXPORT AutoAdvancingVirtualTimeDomain
: public VirtualTimeDomain {
public:
explicit AutoAdvancingVirtualTimeDomain(base::TimeTicks initial_time);
~AutoAdvancingVirtualTimeDomain() override;
// TimeDomain implementation:
bool MaybeAdvanceTime() override;
void RequestWakeup(base::TimeTicks now, base::TimeDelta delay) override;
const char* GetName() const override;
// Controls whether or not virtual time is allowed to advance, when the
// TaskQueueManager runs out of immediate work to do.
void SetCanAdvanceVirtualTime(bool can_advance_virtual_time);
private:
bool can_advance_virtual_time_;
DISALLOW_COPY_AND_ASSIGN(AutoAdvancingVirtualTimeDomain);
};
} // namespace scheduler
#endif // COMPONENTS_SCHEDULER_RENDERER_AUTO_ADVANCING_VIRTUAL_TIME_DOMAIN_H_
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