122 lines
3.8 KiB
C++
122 lines
3.8 KiB
C++
// Copyright (c) 2010 The Chromium Embedded Framework Authors.
|
|
// Portions copyright (c) 2010 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.
|
|
|
|
// This interface is for managing the global services of the application. Each
|
|
// service is lazily created when requested the first time. The service getters
|
|
// will return NULL if the service is not available, so callers must check for
|
|
// this condition.
|
|
|
|
#ifndef _CEF_PROCESS_H
|
|
#define _CEF_PROCESS_H
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
#include "base/basictypes.h"
|
|
#include "base/memory/ref_counted.h"
|
|
#include "base/memory/scoped_ptr.h"
|
|
#include "base/message_loop.h"
|
|
#include "base/threading/non_thread_safe.h"
|
|
#include "ipc/ipc_message.h"
|
|
|
|
namespace base {
|
|
class Thread;
|
|
class WaitableEvent;
|
|
}
|
|
|
|
class CefProcessIOThread;
|
|
class CefProcessUIThread;
|
|
class CefMessageLoopForUI;
|
|
|
|
// NOT THREAD SAFE, call only from the main thread.
|
|
// These functions shouldn't return NULL unless otherwise noted.
|
|
class CefProcess : public base::NonThreadSafe {
|
|
public:
|
|
CefProcess(bool multi_threaded_message_loop);
|
|
virtual ~CefProcess();
|
|
|
|
// Creates key child threads. We need to do this explicitly since
|
|
// CefThread::PostTask silently deletes a posted task if the target message
|
|
// loop isn't created.
|
|
void CreateChildThreads() {
|
|
ui_thread();
|
|
// Create the FILE thread before the IO thread because IO thread
|
|
// initialization depends on existance of the FILE thread (for cache
|
|
// support, etc).
|
|
file_thread();
|
|
io_thread();
|
|
}
|
|
|
|
CefProcessUIThread* ui_thread() {
|
|
DCHECK(CalledOnValidThread());
|
|
if (!created_ui_thread_)
|
|
CreateUIThread();
|
|
return ui_thread_.get();
|
|
}
|
|
|
|
// Do a single iteration of the UI message loop on the current thread. If
|
|
// RunMessageLoop() was called you do not need to call this method.
|
|
void DoMessageLoopIteration();
|
|
|
|
// Run the UI message loop on the current thread.
|
|
void RunMessageLoop();
|
|
|
|
// Quit the UI message loop on the current thread.
|
|
void QuitMessageLoop();
|
|
|
|
// Returns the thread that we perform I/O coordination on (network requests,
|
|
// communication with renderers, etc.
|
|
// NOTE: You should ONLY use this to pass to IPC or other objects which must
|
|
// need a MessageLoop*. If you just want to post a task, use
|
|
// CefThread::PostTask (or other variants) as they take care of checking
|
|
// that a thread is still alive, race conditions, lifetime differences etc.
|
|
// If you still must use this, need to check the return value for NULL.
|
|
CefProcessIOThread* io_thread() {
|
|
DCHECK(CalledOnValidThread());
|
|
if (!created_io_thread_)
|
|
CreateIOThread();
|
|
return io_thread_.get();
|
|
}
|
|
|
|
// Returns the thread that we perform random file operations on. For code
|
|
// that wants to do I/O operations (not network requests or even file: URL
|
|
// requests), this is the thread to use to avoid blocking the UI thread.
|
|
// It might be nicer to have a thread pool for this kind of thing.
|
|
base::Thread* file_thread() {
|
|
DCHECK(CalledOnValidThread());
|
|
if (!created_file_thread_)
|
|
CreateFileThread();
|
|
return file_thread_.get();
|
|
}
|
|
|
|
#if defined(IPC_MESSAGE_LOG_ENABLED)
|
|
// Enable or disable IPC logging for the browser, all processes
|
|
// derived from ChildProcess (plugin etc), and all
|
|
// renderers.
|
|
void SetIPCLoggingEnabled(bool enable);
|
|
#endif
|
|
|
|
private:
|
|
void CreateUIThread();
|
|
void CreateIOThread();
|
|
void CreateFileThread();
|
|
|
|
bool multi_threaded_message_loop_;
|
|
|
|
bool created_ui_thread_;
|
|
scoped_ptr<CefProcessUIThread> ui_thread_;
|
|
scoped_ptr<CefMessageLoopForUI> ui_message_loop_;
|
|
|
|
bool created_io_thread_;
|
|
scoped_ptr<CefProcessIOThread> io_thread_;
|
|
|
|
bool created_file_thread_;
|
|
scoped_ptr<base::Thread> file_thread_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(CefProcess);
|
|
};
|
|
|
|
#endif // _CEF_PROCESS_H
|