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diff --git a/src/anyrtpproxy/rtpSessionTable.h b/src/anyrtpproxy/rtpSessionTable.h
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+++ b/src/anyrtpproxy/rtpSessionTable.h
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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) 2007-2008 Othmar Gsenger, Erwin Nindl, 
+ *                          Christian Pointner <satp@wirdorange.org>
+ *
+ *  This file is part of Anytun.
+ *
+ *  Anytun is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 3 as
+ *  published by the Free Software Foundation.
+ *
+ *  Anytun 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 anytun.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#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 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