/*
 * libretroshare/src/services/p3rtt.h
 *
 * Round Trip Time Measurement for RetroShare.
 *
 * Copyright 2011-2013 by Robert Fernie.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License Version 2.1 as published by the Free Software Foundation.
 *
 * 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library 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.
 *
 * Please report all bugs and problems to "retroshare@lunamutt.com".
 *
 */


#ifndef SERVICE_RSRTT_HEADER
#define SERVICE_RSRTT_HEADER

#include <list>
#include <string>

#include "serialiser/rsrttitems.h"
#include "services/p3service.h"
#include "retroshare/rsrtt.h"

class p3LinkMgr;

class RttPeerInfo
{
	public:

	bool initialisePeerInfo(const RsPeerId& id);

	RsPeerId mId;
	double mCurrentPingTS;
	double mCurrentPingCounter;
	bool   mCurrentPongRecvd;

	uint32_t mLostPongs;
	uint32_t mSentPings;

	std::list<RsRttPongResult> mPongResults;
};


//!The RS Rtt Test service.
 /**
  *
  * Used to test Latency.
  */

class p3rtt: public RsRtt, public p3FastService
{
	public:
		p3rtt(p3LinkMgr *cm);

		/***** overloaded from rsRtt *****/

virtual uint32_t getPongResults(const RsPeerId& id, int n, std::list<RsRttPongResult> &results);

		/***** overloaded from p3Service *****/

		virtual int   tick();
		virtual int   status();

		int     sendPackets();
		void 	sendPingMeasurements();

virtual bool recvItem(RsItem *item); // Overloaded from p3FastService.

		int 	handlePing(RsItem *item);
		int 	handlePong(RsItem *item);

		int 	storePingAttempt(const RsPeerId& id, double ts, uint32_t mCounter);
		int 	storePongResult(const RsPeerId& id, uint32_t counter, double ts, double rtt, double offset);


		/*!
		 * This retrieves all public chat msg items
		 */
		//bool getPublicChatQueue(std::list<ChatInfo> &chats);

		/*************** pqiMonitor callback ***********************/
		//virtual void statusChange(const std::list<pqipeer> &plist);


		/************* from p3Config *******************/
		//virtual RsSerialiser *setupSerialiser() ;
		//virtual bool saveList(bool& cleanup, std::list<RsItem*>&) ;
		//virtual void saveDone();
		//virtual bool loadList(std::list<RsItem*>& load) ;

	private:
		RsMutex mRttMtx;

		RttPeerInfo *locked_GetPeerInfo(const RsPeerId& id);

		std::map<RsPeerId, RttPeerInfo> mPeerInfo;
		time_t mSentPingTime;
		uint32_t mCounter;

		p3LinkMgr *mLinkMgr;

};

#endif // SERVICE_RSRTT_HEADER