/**
 **	File ......... UdpSocket.h
 **	Published ....  2004-02-13
 **	Author ....... grymse@alhem.net
**/
/*
Copyright (C) 2004,2005  Anders Hedstrom

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/
#ifndef _UDPSOCKET_H
#define _UDPSOCKET_H

#include "Socket.h"


class UdpSocket : public Socket
{
public:
	UdpSocket(SocketHandler& ,int ibufsz = 16384);
	~UdpSocket();

	/** new callback */
	virtual void OnRawData(const char *,size_t,struct sockaddr *,socklen_t) {}

	/** to receive incoming data, call Bind to setup an incoming port */
	SOCKET Bind(port_t& port,int range);
	SOCKET Bind6(port_t& port,int range);

	/** if you wish to use Send, first Open a connection */
	bool Open(ipaddr_t,port_t);
	bool Open(const std::string& host,port_t port);
	bool Open6(struct in6_addr&,port_t);
	bool Open6(const std::string& host,port_t port);

	/** create before using sendto methods */
	void CreateConnection();
	void CreateConnection6(); // ipv6

	/** send to specified address */
	void SendToBuf(const std::string& ,port_t,const char *data,int len,int flags = 0);
	void SendToBuf(ipaddr_t,port_t,const char *data,int len,int flags = 0);
	void SendToBuf6(const std::string& ,port_t,const char *data,int len,int flags = 0);
	void SendTo(const std::string&,port_t,const std::string&,int flags = 0);
	void SendTo(ipaddr_t,port_t,const std::string&,int flags = 0);
	void SendTo6(const std::string&,port_t,const std::string&,int flags = 0);

	/** send to connected address */
	void SendBuf(const char *data,int,int flags = 0);
	void Send(const std::string& ,int flags = 0);

	/** broadcast */
	void SetBroadcast(bool b = true);
	bool IsBroadcast();

	/** multicast */
	void SetMulticastTTL(int ttl = 1);
	int GetMulticastTTL();
	void SetMulticastLoop(bool = true);
	bool IsMulticastLoop();
	void AddMulticastMembership(const std::string& group,const std::string& intf = "0.0.0.0",int if_index = 0);
	void DropMulticastMembership(const std::string& group,const std::string& intf = "0.0.0.0",int if_index = 0);
	/** multicast, ipv6 */
	void SetMulticastHops(int = -1);
	int GetMulticastHops();

protected:
	UdpSocket(const UdpSocket& s) : Socket(s) {}
	void OnRead();

// int  recvfrom(int  s,  void *buf, int len, int flags, struct sockaddr *from, socklen_t *fromlen);
// int  sendto(int  s,  const  void  *msg, int len, int flags, const struct sockaddr *to, socklen_t tolen);
private:
	UdpSocket& operator=(const UdpSocket& ) { return *this; }
	bool m_connected;
	char *m_ibuf;
	int m_ibufsz;
};


#endif // _UDPSOCKET_H