// 
// Copyright @ 2015 Hangzhou Topzen Ltd.
// Author: Wu JiuBao (wujb@hztopzen.com) @ 2017-03
//

#ifndef __MULTICASTSOCKET_H
#define __MULTICASTSOCKET_H

#include "UDPSocket.h"

namespace tzc {

class DECLDLL MulticastSocket : public UDPSocket
{
public:
	MulticastSocket();

	MulticastSocket(const Socket & sock);

	virtual ~MulticastSocket();

public:
	// join to multicast group
	TZ_INT Join2MCGroup(const std::string & ip,
					const std::string & localip = "");
	// leave from multicast goup
	TZ_INT LeaveFromMCGroup(const std::string & ip);
	// get multicast ip address
	std::string GetMulticastAddr();

	// set multicast whether loop-back
	TZ_INT SetMulticastLoop(TZ_BOOL on);
	TZ_BOOL GetMulticastLoop();

	// set data-packet's ttl of multicast, 
	// the default value is 1, means the data-packets
	// can be transmitted just in the subnet.
	TZ_INT SetMulticastTTL(TZ_Uint8 ttl);
	TZ_Uint8 GetMulticastTTL();

	// set network interface of multicast
	TZ_INT SetMulticastIF(const std::string & ip);
	std::string GetMulticastIF();
};

};	// namespace tzc

#endif /*-----#ifndef __MULTICASTSOCKET_H-----*/