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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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_WORKER_COMPOSITOR_THREAD_SCHEDULER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_WORKER_COMPOSITOR_THREAD_SCHEDULER_H_
#include "base/single_thread_task_runner.h"
#include "components/scheduling_metrics/task_duration_metric_reporter.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/scheduler/common/single_thread_idle_task_runner.h"
#include "third_party/blink/renderer/platform/scheduler/public/thread_type.h"
#include "third_party/blink/renderer/platform/scheduler/worker/compositor_metrics_helper.h"
#include "third_party/blink/renderer/platform/scheduler/worker/non_main_thread_scheduler_impl.h"
namespace base {
class TaskObserver;
}
namespace blink {
namespace scheduler {
class PLATFORM_EXPORT CompositorThreadScheduler
: public NonMainThreadSchedulerImpl,
public SingleThreadIdleTaskRunner::Delegate {
public:
explicit CompositorThreadScheduler(
base::sequence_manager::SequenceManager* sequence_manager);
CompositorThreadScheduler(const CompositorThreadScheduler&) = delete;
CompositorThreadScheduler& operator=(const CompositorThreadScheduler&) =
delete;
~CompositorThreadScheduler() override;
// NonMainThreadSchedulerImpl:
scoped_refptr<NonMainThreadTaskQueue> DefaultTaskQueue() override;
void OnTaskCompleted(
NonMainThreadTaskQueue* worker_task_queue,
const base::sequence_manager::Task& task,
base::sequence_manager::TaskQueue::TaskTiming* task_timing,
base::sequence_manager::LazyNow* lazy_now) override;
// WebThreadScheduler:
scoped_refptr<base::SingleThreadTaskRunner> V8TaskRunner() override;
scoped_refptr<base::SingleThreadTaskRunner> DefaultTaskRunner() override;
scoped_refptr<base::SingleThreadTaskRunner> InputTaskRunner() override;
scoped_refptr<base::SingleThreadTaskRunner> CompositorTaskRunner() override;
scoped_refptr<base::SingleThreadTaskRunner> NonWakingTaskRunner() override;
bool ShouldYieldForHighPriorityWork() override;
bool CanExceedIdleDeadlineIfRequired() const override;
void AddTaskObserver(base::TaskObserver* task_observer) override;
void RemoveTaskObserver(base::TaskObserver* task_observer) override;
void AddRAILModeObserver(RAILModeObserver*) override {}
void RemoveRAILModeObserver(RAILModeObserver const*) override {}
void Shutdown() override;
// ThreadSchedulerImpl:
scoped_refptr<scheduler::SingleThreadIdleTaskRunner> IdleTaskRunner()
override;
// SingleThreadIdleTaskRunner::Delegate:
void OnIdleTaskPosted() override;
base::TimeTicks WillProcessIdleTask() override;
void DidProcessIdleTask() override;
base::TimeTicks NowTicks() override;
private:
CompositorMetricsHelper compositor_metrics_helper_;
};
} // namespace scheduler
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_WORKER_COMPOSITOR_THREAD_SCHEDULER_H_
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