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// Copyright (c) 2011 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 CONTENT_GPU_GPU_CHILD_THREAD_H_
#define CONTENT_GPU_GPU_CHILD_THREAD_H_
#pragma once
#include <string>
#include "base/basictypes.h"
#include "base/command_line.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/time.h"
#include "build/build_config.h"
#include "content/common/child_thread.h"
#include "content/common/gpu/gpu_channel.h"
#include "content/common/gpu/gpu_channel_manager.h"
#include "content/common/gpu/gpu_config.h"
#include "content/common/gpu/gpu_info.h"
#include "content/common/gpu/x_util.h"
#include "ui/gfx/native_widget_types.h"
namespace IPC {
struct ChannelHandle;
}
namespace sandbox {
class TargetServices;
}
class GpuWatchdogThread;
// The main thread of the GPU child process. There will only ever be one of
// these per process. It does process initialization and shutdown. It forwards
// IPC messages to GpuChannelManager, which is responsible for issuing rendering
// commands to the GPU.
class GpuChildThread : public ChildThread {
public:
explicit GpuChildThread(bool dead_on_arrival);
// For single-process mode.
explicit GpuChildThread(const std::string& channel_id);
virtual ~GpuChildThread();
void Init(const base::Time& process_start_time);
void StopWatchdog();
// ChildThread overrides.
virtual bool Send(IPC::Message* msg);
virtual bool OnControlMessageReceived(const IPC::Message& msg);
private:
// Message handlers.
void OnInitialize();
void OnCollectGraphicsInfo();
void OnClean();
void OnCrash();
void OnHang();
#if defined(OS_WIN)
static void CollectDxDiagnostics(GpuChildThread* thread);
static void SetDxDiagnostics(GpuChildThread* thread, const DxDiagNode& node);
#endif
// Set this flag to true if a fatal error occurred before we receive the
// OnInitialize message, in which case we just declare ourselves DOA.
bool dead_on_arrival_;
base::Time process_start_time_;
scoped_refptr<GpuWatchdogThread> watchdog_thread_;
#if defined(OS_WIN)
// Windows specific client sandbox interface.
sandbox::TargetServices* target_services_;
// Indicates whether DirectX Diagnostics collection is ongoing.
bool collecting_dx_diagnostics_;
#endif
scoped_ptr<GpuChannelManager> gpu_channel_manager_;
// Information about the GPU, such as device and vendor ID.
GPUInfo gpu_info_;
DISALLOW_COPY_AND_ASSIGN(GpuChildThread);
};
#endif // CONTENT_GPU_GPU_CHILD_THREAD_H_
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