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1946924b16
Currently we run some tasks on the UI thread that shouldn't block the frame, such as decoding images. This patch introduces a background thread on which we can run these tasks.
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
// Copyright 2015 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef SKY_SHELL_SHELL_H_
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#define SKY_SHELL_SHELL_H_
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#include "base/macros.h"
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#include "base/memory/ref_counted.h"
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#include "base/memory/scoped_ptr.h"
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#include "base/message_loop/message_loop.h"
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#include "base/threading/thread.h"
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#include "sky/shell/service_provider.h"
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#include "sky/shell/tracing_controller.h"
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namespace sky {
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namespace shell {
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class ServiceProviderContext;
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class Shell {
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public:
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~Shell();
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static void Init(
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scoped_ptr<ServiceProviderContext> service_provider_context);
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static Shell& Shared();
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base::SingleThreadTaskRunner* gpu_task_runner() const {
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return gpu_task_runner_.get();
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}
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base::SingleThreadTaskRunner* ui_task_runner() const {
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return ui_task_runner_.get();
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}
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base::SingleThreadTaskRunner* io_task_runner() const {
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return io_task_runner_.get();
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}
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ServiceProviderContext* service_provider_context() const {
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return service_provider_context_.get();
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}
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TracingController& tracing_controller();
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private:
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explicit Shell(scoped_ptr<ServiceProviderContext> service_provider_context);
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void InitGPU(const base::Thread::Options& options);
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void InitUI(const base::Thread::Options& options);
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scoped_ptr<base::Thread> gpu_thread_;
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scoped_ptr<base::Thread> ui_thread_;
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scoped_ptr<base::Thread> io_thread_;
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scoped_refptr<base::SingleThreadTaskRunner> gpu_task_runner_;
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scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner_;
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scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
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scoped_ptr<ServiceProviderContext> service_provider_context_;
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TracingController tracing_controller_;
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DISALLOW_COPY_AND_ASSIGN(Shell);
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};
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} // namespace shell
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} // namespace sky
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#endif // SKY_SHELL_SHELL_H_
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