src/connectionList.h

   1 /*
   2  *  anytun
   3  *
   4  *  The secure anycast tunneling protocol (satp) defines a protocol used
   5  *  for communication between any combination of unicast and anycast
   6  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
   7  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
   8  *  ethernet, ip, arp ...). satp directly includes cryptography and
   9  *  message authentication based on the methodes used by SRTP.  It is
  10  *  intended to deliver a generic, scaleable and secure solution for
  11  *  tunneling and relaying of packets of any protocol.
  12  *
  13  *
  14  *  Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl,
  15  *                          Christian Pointner <satp@wirdorange.org>
  16  *
  17  *  This file is part of Anytun.
  18  *
  19  *  Anytun is free software: you can redistribute it and/or modify
  20  *  it under the terms of the GNU General Public License version 3 as
  21  *  published by the Free Software Foundation.
  22  *
  23  *  Anytun is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
  30  */
  31
  32 #ifndef _CONNECTION_LIST_H
  33 #define _CONNECTION_LIST_H
  34
  35 #include <map>
  36 #include <deque>
  37
  38 #include "threadUtils.hpp"
  39 #include "datatypes.h"
  40 #include "connectionParam.h"
  41 #include "networkAddress.h"
  42 typedef std::map<u_int16_t, ConnectionParam> ConnectionMap;
  43
  44 class ConnectionList
  45 {
  46 public:
  47         ConnectionList();
  48         ~ConnectionList();
  49         static ConnectionList& instance();
  50         void addConnection(ConnectionParam &conn, u_int16_t mux);
  51         const ConnectionMap::iterator getConnection(u_int16_t mux);
  52         const ConnectionMap::iterator getEnd();
  53         ConnectionMap::iterator getEndUnlocked();
  54         ConnectionMap::iterator getBeginUnlocked();
  55         ConnectionParam & getOrNewConnectionUnlocked(u_int16_t mux);
  56         bool empty();
  57         void clear();
  58   Mutex& getMutex();
  59
  60 private:
  61   static Mutex instMutex;
  62         static ConnectionList* inst;
  63   class instanceCleaner {
  64     public: ~instanceCleaner() {
  65      if(ConnectionList::inst != 0)
  66        delete ConnectionList::inst;
  67    }
  68   };
  69         ConnectionList(const ConnectionList &s);
  70   void operator=(const ConnectionList &s);
  71         ConnectionMap connections_;
  72   Mutex mutex_;
  73 };
  74
  75 extern ConnectionList& gConnectionList;
  76
  77 #endif