browse_client_generic.h

这是一款2d游戏引擎

/*  $Id: browse_client_generic.h,v 1.9 2003/10/14 15:52:13 mbn Exp $
**
**  ClanLib Game SDK
**  Copyright (C) 2003  The ClanLib Team
**  For a total list of contributers see the file CREDITS.
**
**  This library is free software; you can redistribute it and/or
**  modify it under the terms of the GNU Lesser General Public
**  License as published by the Free Software Foundation; either
**  version 2.1 of the License, or (at your option) any later version.
**
**  This library is distributed in the hope that it will be useful,
**  but WITHOUT ANY WARRANTY; without even the implied warranty of
**  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
**  Lesser General Public License for more details.
**
**  You should have received a copy of the GNU Lesser General Public
**  License along with this library; if not, write to the Free Software
**  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
**
*/

#ifndef header_browse_client_generic
#define header_browse_client_generic

#if _MSC_VER > 1000
#pragma once
#endif

#include "API/signals.h"
#include "API/Core/System/thread.h"
#include "API/Core/System/mutex.h"
#include "API/Core/System/keep_alive.h"
#include "API/Network/Socket/ip_address.h"
#include "API/Network/Socket/socket.h"
#include "API/Network/NetSession/netpacket.h"
#include <string>

class CL_NetPacket;

class CL_BrowseClient_Generic : public CL_Runnable, CL_KeepAlive
{
//! Construction:
public:
	//: Connect to browse master and start downloading getting browse list.
	CL_BrowseClient_Generic(const std::string &app_id);

	virtual ~CL_BrowseClient_Generic();

//! Attributes:
public:
	//: Signal that is called when the browse client is notified about a server addition.
	CL_Signal_v2<const CL_IPAddress &, CL_NetPacket &> sig_server_added;

	//: Signal that is called when the browse client is notified about a server update.
	CL_Signal_v2<const CL_IPAddress &, CL_NetPacket &> sig_server_updated;

	//: Signal that is called when the browse client is notified about a server removal.
	CL_Signal_v1<const CL_IPAddress &> sig_server_removed;

//! Operations:
public:
	//: Connect to browse master and start downloading getting browse list.
	void connect(const CL_IPAddress &browse_master);

	//: Broadcast browse query on local area network for browse servers on the specified port.
	void broadcast(const std::string &port);

//! Implementation:
private:
	virtual void keep_alive();

	virtual void run();

	CL_IPAddress browse_master;
	
	std::string app_id;

	std::list< std::pair<CL_IPAddress, CL_NetPacket> > added_list;
	
	std::list< std::pair<CL_IPAddress, CL_NetPacket> > updated_list;
	
	std::list<CL_IPAddress> removed_list;

	CL_Socket sock;

	//: udp socket for listening to broadcast
	CL_Socket sock_udp;
	//: Trigger slot to recive broadcast message
	CL_Slot slot_recv;
	//: method called when recived a broadcast message
	void on_udp_recv();

	CL_Thread thread;
	
	CL_Mutex mutex;
	
	volatile bool stop_thread;
	
	volatile bool exception_thrown;
	
	std::string exception;
};

#endif