/*! \file pimulticast.h
 * \brief Multicast for all interfaces, including loopback
*/
/*
	PIP - Platform Independent Primitives
	Multicast for all interfaces, including loopback
	Copyright (C) 2018  Ivan Pelipenko peri4ko@yandex.ru, Andrey Bychkov work.a.b@yandex.ru

	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 3 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, see <http://www.gnu.org/licenses/>.
*/

#ifndef PIMULTICAST_H
#define PIMULTICAST_H

#include "piethutilbase.h"
#include "piethernet.h"

#define SMDEVICE_PORT 22555

class PIMulticast: public PIThread, public PIEthUtilBase {
	PIOBJECT(PIMulticast)
public:
	PIMulticast(bool send_only = false);
	~PIMulticast();

	void setMulticastGroup(const PIString & mg) {mcast_address.setIP(mg);}
	PIString multicastGroup() const {return mcast_address.ipString();}
	void setMulticastPort(ushort port) {mcast_address.setPort(port);}
	ushort multicastPort() const {return mcast_address.port();}
	void setMulticastAddress(const PIEthernet::Address & addr) {mcast_address = addr;}
	PIEthernet::Address multicastAddress() const {return mcast_address;}

	void setBroadcastPort(ushort port) {bcast_port = port;}
	ushort broadcastPort() {return bcast_port;}

	void setLoopbackPort(ushort port) {lo_port = port;}
	ushort loopbackPort() {return lo_port;}
	void setLoopbackPortsCount(int count) {lo_pcnt = count;}
	int loopbackPortsCount() const {return lo_pcnt;}

	void startRead();
	void stopRead();
	void reinit();

	void send(const PIByteArray & data);
	EVENT1(receiveEvent, PIByteArray, data)

protected:
	virtual void received(PIByteArray data) {}

private:
	EVENT_HANDLER2(void, mcastRead, uchar * , data, int, size);
	void destroyAll();
	void initAll(PIVector<PIEthernet::Address> al);
	void run();

	PIEthernet::Address mcast_address;
	PIMutex mcast_mutex;
	PIVector<PIEthernet*> eth_mcast;
	PIEthernet * eth_lo;
	PIVector<PIEthernet::Address> prev_al;
	ushort lo_port, bcast_port;
	int lo_pcnt;
	bool _started, _send_only, _reinit;

};

#endif // PIMULTICAST_H