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/*
 *  anytun
 *
 *  The secure anycast tunneling protocol (satp) defines a protocol used
 *  for communication between any combination of unicast and anycast
 *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
 *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
 *  ethernet, ip, arp ...). satp directly includes cryptography and
 *  message authentication based on the methodes used by SRTP.  It is
 *  intended to deliver a generic, scaleable and secure solution for
 *  tunneling and relaying of packets of any protocol.
 *
 *
 *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2
 *  as published by the Free Software Foundation.
 *
 *  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 (see the file COPYING included with this
 *  distribution); if not, write to the Free Software Foundation, Inc.,
 *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _RTPSESSIONTABLE_H
#define _RTPSESSIONTABLE_H

#include <map>

#include "threadUtils.hpp"
#include "datatypes.h"
#include "rtpSession.h"
typedef std::map<std::string,RtpSession*> RtpSessionMap;

class RtpSessionTable
{
public:
	static RtpSessionTable& instance();
	RtpSessionTable();
	~RtpSessionTable();
	void addSession(const std::string & call_id, RtpSession* ses);
	void delSession(const std::string & call_id);
	bool empty();
	void clear();
  ::Mutex& getMutex();
	RtpSessionMap::iterator getBeginUnlocked();
	RtpSessionMap::iterator getEndUnlocked();
	RtpSession& getOrNewSession(const std::string & call_id, bool& isnew);
	RtpSession& getOrNewSessionUnlocked(const std::string & call_id, bool& isnew);
	RtpSession& getSession(const std::string & call_id);

private:
  static ::Mutex instMutex;
	static RtpSessionTable* inst;
  class instanceCleaner {
    public: ~instanceCleaner() {
     if(RtpSessionTable::inst != 0)
       delete RtpSessionTable::inst;
   }
	};
	RtpSessionTable(const RtpSessionTable &s);
  void operator=(const RtpSessionTable &s);
	RtpSessionMap map_;
  ::Mutex mutex_;
};

extern RtpSessionTable& gRtpSessionTable;

#endif