| // 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. |
| |
| #include "components/scheduler/child/compositor_worker_scheduler.h" |
| |
| #include "base/message_loop/message_loop.h" |
| #include "base/threading/thread.h" |
| |
| namespace scheduler { |
| |
| CompositorWorkerScheduler::CompositorWorkerScheduler(base::Thread* thread) |
| : thread_(thread) {} |
| |
| CompositorWorkerScheduler::~CompositorWorkerScheduler() {} |
| |
| void CompositorWorkerScheduler::Init() {} |
| |
| scoped_refptr<base::SingleThreadTaskRunner> |
| CompositorWorkerScheduler::DefaultTaskRunner() { |
| // TODO(sad): Implement a more robust scheduler that can do idle tasks for GC |
| // without regressing performance of the rest of the system. |
| return thread_->task_runner(); |
| } |
| |
| scoped_refptr<scheduler::SingleThreadIdleTaskRunner> |
| CompositorWorkerScheduler::IdleTaskRunner() { |
| // TODO(sad): Not having a task-runner for idle tasks means v8 has to fallback |
| // to inline GC, which might cause jank. |
| return nullptr; |
| } |
| |
| bool CompositorWorkerScheduler::CanExceedIdleDeadlineIfRequired() const { |
| return false; |
| } |
| |
| bool CompositorWorkerScheduler::ShouldYieldForHighPriorityWork() { |
| return false; |
| } |
| |
| void CompositorWorkerScheduler::AddTaskObserver( |
| base::MessageLoop::TaskObserver* task_observer) { |
| thread_->message_loop()->AddTaskObserver(task_observer); |
| } |
| |
| void CompositorWorkerScheduler::RemoveTaskObserver( |
| base::MessageLoop::TaskObserver* task_observer) { |
| thread_->message_loop()->RemoveTaskObserver(task_observer); |
| } |
| |
| void CompositorWorkerScheduler::Shutdown() {} |
| |
| } // namespace scheduler |