source: source/ariba/communication/modules/transport/protlib/connectionmap.h@ 5524

/// ----------------------------------------*- mode: C++; -*--

/// @file connectionmap.h

/// maintains connection mapping of application addresses to sockets and vice versa

/// ----------------------------------------------------------

/// $Id: connectionmap.h 2549 2007-04-02 22:17:37Z bless $

/// $HeadURL: https://svn.ipv6.tm.uka.de/nsis/protlib/trunk/include/connectionmap.h $

// ===========================================================

//                      

// Copyright (C) 2005-2007, all rights reserved by

// - Institute of Telematics, Universitaet Karlsruhe (TH)

//

// More information and contact:

// https://projekte.tm.uka.de/trac/NSIS

//                      

// This program is free software; you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation; version 2 of the License

//

// 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; if not, write to the Free Software Foundation, Inc.,

// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

//

// ===========================================================

#ifndef CONNECTION_MAP_H

#define CONNECTION_MAP_H



#include "assocdata.h"

#include <ext/hash_map>



namespace protlib {



/* @class ConnectionMap 

 * maintains connection mapping of application addresses to sockets and vice versa

 * @ingroup network

 * @{

 */

class ConnectionMap {

        public:

                // a constructor may be needed here in this class

                /// Insert a new AssocData element into the ConnectionMap

                bool insert(AssocData* assoc);

                /// Search for existing connections to this specific socket

                AssocData* lookup(socketfd_t socketfd) const;

                /// Search for existing connections to this specific assoc id

                AssocData* lookup(associd_t associd) const;

                ///Search for existing connections to this address

                AssocData* lookup(const appladdress& addr) const;

                /// Erase the AssocData-element associated with this socket

                bool erase(socketfd_t socketfd);

                /// Erase the AssocData-element associated with this socket

                bool erase(associd_t associd);

                /// Erase the AssocData-element

                bool erase(AssocData* assoc);

                /// clear all

                void clear();

                /// get number of records

                size_t get_size() const;

        private:

                // this hash_map uses the standard hashfunction on the first entry, int

                

                // only typedefs

                typedef hash_map<socketfd_t ,AssocData*> ass2data_t;

                typedef ass2data_t::const_iterator const_ass2data_it_t;

                typedef hash_map<appladdress,AssocData*> addr2data_t;

                typedef addr2data_t::const_iterator const_addr2data_it_t;



                // internal hashmaps

                ass2data_t ass2data; ///< map: socket fd to association data

                addr2data_t addr2data; ///< map: (application) address to association data

        public:

                /// connection map iterator

                typedef const_ass2data_it_t const_it_t;

                const_it_t begin() const;

                const_it_t end() const;

}; // end class ConnectionMap



inline

size_t 

ConnectionMap::get_size() const { return ass2data.size(); }



inline

ConnectionMap::const_it_t ConnectionMap::begin() const {

        return ass2data.begin();

} // end begin



inline

ConnectionMap::const_it_t ConnectionMap::end() const {

        return ass2data.end();

} // end end



inline

bool 

ConnectionMap::erase(AssocData* assoc) {

  return assoc ? erase(assoc->socketfd) : false;

} // end erase



//@}



} // end namespace protlib

#endif