anytun: seqWindow.h Source File

00001 /*
-00002  *  anytun
-00003  *
-00004  *  The secure anycast tunneling protocol (satp) defines a protocol used
-00005  *  for communication between any combination of unicast and anycast
-00006  *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
-00007  *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
-00008  *  ethernet, ip, arp ...). satp directly includes cryptography and
-00009  *  message authentication based on the methodes used by SRTP.  It is
-00010  *  intended to deliver a generic, scaleable and secure solution for
-00011  *  tunneling and relaying of packets of any protocol.
-00012  *
-00013  *
-00014  *  Copyright (C) 2007 anytun.org <satp@wirdorange.org>
-00015  *
-00016  *  This program is free software; you can redistribute it and/or modify
-00017  *  it under the terms of the GNU General Public License version 2
-00018  *  as published by the Free Software Foundation.
-00019  *
-00020  *  This program is distributed in the hope that it will be useful,
-00021  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
-00022  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-00023  *  GNU General Public License for more details.
-00024  *
-00025  *  You should have received a copy of the GNU General Public License
-00026  *  along with this program (see the file COPYING included with this
-00027  *  distribution); if not, write to the Free Software Foundation, Inc.,
-00028  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
-00029  */
-00030 
-00031 #ifndef _SEQ_WINDOW_H_
-00032 #define _SEQ_WINDOW_H_
-00033 
-00034 #include <map>
-00035 #include <deque>
-00036 
-00037 #include "threadUtils.hpp"
-00038 #include "datatypes.h"
-00039 
-00040 class SeqWindow
-00041 {
-00042 public:
-00043   typedef std::deque<seq_nr_t> SeqDeque;
-00044   typedef std::map<sender_id_t, SeqDeque> SenderMap;
-00045 
-00046   SeqWindow(window_size_t w);
-00047   ~SeqWindow();
-00048 
-00049   SeqDeque::size_type getLength(sender_id_t sender);
-00050   bool hasSeqNr(sender_id_t sender, seq_nr_t seq);
-00051   void addSeqNr(sender_id_t sender, seq_nr_t seq);
-00052   void clear(sender_id_t sender);
-00053   void clear();
-00054 
-00055 private:
-00056   SeqWindow(const SeqWindow &s);
-00057   void operator=(const SeqWindow &s);
-00058 
-00059   window_size_t window_size_;
-00060   Mutex mutex_;
-00061   SenderMap sender_;
-00062 };
-00063 
-00064 #endif
-