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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_WORKER_SCHEDULER_IMPL_H_
#define COMPONENTS_SCHEDULER_CHILD_WORKER_SCHEDULER_IMPL_H_
#include "base/macros.h"
#include "components/scheduler/child/idle_helper.h"
#include "components/scheduler/child/scheduler_helper.h"
#include "components/scheduler/child/worker_scheduler.h"
#include "components/scheduler/scheduler_export.h"
namespace base {
namespace trace_event {
class ConvertableToTraceFormat;
}
}
namespace scheduler {
class SchedulerTqmDelegate;
class SCHEDULER_EXPORT WorkerSchedulerImpl : public WorkerScheduler,
public IdleHelper::Delegate {
public:
explicit WorkerSchedulerImpl(
scoped_refptr<SchedulerTqmDelegate> main_task_runner);
~WorkerSchedulerImpl() override;
// WorkerScheduler implementation:
scoped_refptr<TaskQueue> DefaultTaskRunner() override;
scoped_refptr<SingleThreadIdleTaskRunner> IdleTaskRunner() override;
bool CanExceedIdleDeadlineIfRequired() const override;
bool ShouldYieldForHighPriorityWork() override;
void AddTaskObserver(base::MessageLoop::TaskObserver* task_observer) override;
void RemoveTaskObserver(
base::MessageLoop::TaskObserver* task_observer) override;
void Init() override;
void Shutdown() override;
SchedulerHelper* GetSchedulerHelperForTesting();
base::TimeTicks CurrentIdleTaskDeadlineForTesting() const;
protected:
// IdleHelper::Delegate implementation:
bool CanEnterLongIdlePeriod(
base::TimeTicks now,
base::TimeDelta* next_long_idle_period_delay_out) override;
void IsNotQuiescent() override {}
void OnIdlePeriodStarted() override {}
void OnIdlePeriodEnded() override {}
private:
void MaybeStartLongIdlePeriod();
SchedulerHelper helper_;
IdleHelper idle_helper_;
bool initialized_;
DISALLOW_COPY_AND_ASSIGN(WorkerSchedulerImpl);
};
} // namespace scheduler
#endif // COMPONENTS_SCHEDULER_CHILD_WORKER_SCHEDULER_IMPL_H_
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