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// Copyright (c) 2012 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_BROWSER_BROWSER_MAIN_LOOP_H_
#define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
#pragma once
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "content/browser/browser_process_sub_thread.h"
#if defined(OS_WIN)
#include "ui/base/win/scoped_ole_initializer.h"
#endif
class BrowserOnlineStateObserver;
class CommandLine;
class HighResolutionTimerManager;
class MessageLoop;
class SystemMessageWindowWin;
namespace base {
class SystemMonitor;
}
namespace media {
class AudioManager;
}
namespace net {
class NetworkChangeNotifier;
}
namespace content {
class BrowserMainParts;
class BrowserShutdownImpl;
class BrowserThreadImpl;
struct MainFunctionParams;
class ResourceDispatcherHostImpl;
class WebKitThread;
// Implements the main browser loop stages called from BrowserMainRunner.
// See comments in browser_main_parts.h for additional info.
// All functions are to be called only on the UI thread unless otherwise noted.
class BrowserMainLoop {
public:
explicit BrowserMainLoop(const content::MainFunctionParams& parameters);
virtual ~BrowserMainLoop();
void Init();
void EarlyInitialization();
void InitializeToolkit();
void MainMessageLoopStart();
// Create all secondary threads.
void CreateThreads();
// Perform the default message loop run logic.
void RunMainMessageLoopParts();
// Performs the shutdown sequence, starting with PostMainMessageLoopRun
// through stopping threads to PostDestroyThreads.
void ShutdownThreadsAndCleanUp();
int GetResultCode() const { return result_code_; }
// Can be called on any thread.
static media::AudioManager* GetAudioManager();
private:
// For ShutdownThreadsAndCleanUp.
friend class BrowserShutdownImpl;
void InitializeMainThread();
// Called right after the browser threads have been started.
void BrowserThreadsStarted();
void MainMessageLoopRun();
// Members initialized on construction ---------------------------------------
const content::MainFunctionParams& parameters_;
const CommandLine& parsed_command_line_;
int result_code_;
// Members initialized in |MainMessageLoopStart()| ---------------------------
scoped_ptr<MessageLoop> main_message_loop_;
scoped_ptr<base::SystemMonitor> system_monitor_;
scoped_ptr<HighResolutionTimerManager> hi_res_timer_manager_;
scoped_ptr<net::NetworkChangeNotifier> network_change_notifier_;
scoped_ptr<media::AudioManager> audio_manager_;
// Per-process listener for online state changes.
scoped_ptr<BrowserOnlineStateObserver> online_state_observer_;
#if defined(OS_WIN)
scoped_ptr<SystemMessageWindowWin> system_message_window_;
#endif
// Destroy parts_ before main_message_loop_ (required) and before other
// classes constructed in content (but after main_thread_).
scoped_ptr<BrowserMainParts> parts_;
// Members initialized in |InitializeMainThread()| ---------------------------
// This must get destroyed before other threads that are created in parts_.
scoped_ptr<BrowserThreadImpl> main_thread_;
// Members initialized in |BrowserThreadsStarted()| --------------------------
scoped_ptr<ResourceDispatcherHostImpl> resource_dispatcher_host_;
// Members initialized in |RunMainMessageLoopParts()| ------------------------
scoped_ptr<BrowserProcessSubThread> db_thread_;
scoped_ptr<WebKitThread> webkit_thread_;
scoped_ptr<BrowserProcessSubThread> file_user_blocking_thread_;
scoped_ptr<BrowserProcessSubThread> file_thread_;
scoped_ptr<BrowserProcessSubThread> process_launcher_thread_;
scoped_ptr<BrowserProcessSubThread> cache_thread_;
scoped_ptr<BrowserProcessSubThread> io_thread_;
#if defined(OS_WIN)
ui::ScopedOleInitializer ole_initializer_;
#endif
DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
};
} // namespace content
#endif // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
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