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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/macros.h"
#include "base/message_loop/message_loop.h"
#include "base/single_thread_task_runner.h"
#include "third_party/blink/public/platform/scheduler/single_thread_idle_task_runner.h"
#include "third_party/blink/public/platform/web_thread_type.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/scheduler/child/compositor_metrics_helper.h"
#include "third_party/blink/renderer/platform/scheduler/public/non_main_thread_scheduler.h"
#include "third_party/blink/renderer/platform/scheduler/util/task_duration_metric_reporter.h"
namespace base {
class Thread;
}
namespace blink {
namespace scheduler {
class PLATFORM_EXPORT CompositorThreadScheduler
: public NonMainThreadScheduler,
public SingleThreadIdleTaskRunner::Delegate {
public:
CompositorThreadScheduler(
base::Thread* thread,
std::unique_ptr<TaskQueueManager> task_queue_manager);
~CompositorThreadScheduler() override;
// WorkerScheduler:
scoped_refptr<WorkerTaskQueue> DefaultTaskQueue() override;
void Init() override;
void OnTaskCompleted(WorkerTaskQueue* worker_task_queue,
const TaskQueue::Task& task,
base::TimeTicks start,
base::TimeTicks end,
base::Optional<base::TimeDelta> thread_time) override;
// ChildScheduler:
scoped_refptr<base::SingleThreadTaskRunner> DefaultTaskRunner() override;
scoped_refptr<scheduler::SingleThreadIdleTaskRunner> IdleTaskRunner()
override;
scoped_refptr<base::SingleThreadTaskRunner> IPCTaskRunner() override;
bool ShouldYieldForHighPriorityWork() override;
bool CanExceedIdleDeadlineIfRequired() const override;
void AddTaskObserver(base::MessageLoop::TaskObserver* task_observer) override;
void RemoveTaskObserver(
base::MessageLoop::TaskObserver* task_observer) override;
void Shutdown() override;
// SingleThreadIdleTaskRunner::Delegate:
void OnIdleTaskPosted() override;
base::TimeTicks WillProcessIdleTask() override;
void DidProcessIdleTask() override;
base::TimeTicks NowTicks() override;
private:
base::Thread* thread_;
CompositorMetricsHelper compositor_metrics_helper_;
DISALLOW_COPY_AND_ASSIGN(CompositorThreadScheduler);
};
} // namespace scheduler
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_WORKER_COMPOSITOR_THREAD_SCHEDULER_H_
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