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Forwarding.hpp

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/*******************************************************************************
 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
 * Kopernikusstr. 5, D-52074 Aachen, Germany
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 * fax: ++49-241-80-22242
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 * _____________________________________________________________________________
 *
 * openWNS is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
 *
 * openWNS 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
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#ifndef IP_FORWARDING_HPP
#define IP_FORWARDING_HPP

#include <IP/IPHeader.hpp>

#include <WNS/ldk/CommandTypeSpecifier.hpp>
#include <WNS/ldk/HasConnector.hpp>
#include <WNS/ldk/HasReceptor.hpp>
#include <WNS/ldk/HasDeliverer.hpp>
#include <WNS/ldk/Dropper.hpp>
#include <WNS/ldk/Command.hpp>
#include <WNS/ldk/Delayed.hpp>

#include <WNS/logger/Logger.hpp>
#include <WNS/service/nl/Address.hpp>

namespace ip {

    class ForwardingCommand :
        public wns::ldk::Command
    {
        friend class Forwarding;
    public:
        struct {

        } local;

        struct {

        } peer;

        struct {
        } magic;
    };

    class Forwarding :
        public wns::ldk::CommandTypeSpecifier<ForwardingCommand>,
        public wns::ldk::HasReceptor<>,
        public wns::ldk::HasConnector<>,
        public wns::ldk::HasDeliverer<>,
        public wns::ldk::Delayed<Forwarding>,
        public wns::Cloneable<Forwarding>
    {
        typedef wns::service::nl::Address Address;
        typedef std::list<wns::service::nl::Address> AddressContainer;

    public:
        Forwarding(wns::ldk::fun::FUN* fun, const wns::pyconfig::View& _pyco);

        virtual
        ~Forwarding()
        {}

        virtual void
        onFUNCreated();

        virtual void processIncoming(const wns::ldk::CompoundPtr& compound);
        virtual void processOutgoing(const wns::ldk::CompoundPtr&);
        virtual bool hasCapacity() const;
        virtual const wns::ldk::CompoundPtr hasSomethingToSend() const;
        virtual wns::ldk::CompoundPtr getSomethingToSend();

/*      void
        doSendData(const wns::ldk::CompoundPtr& compound);

        void
        doOnData(const wns::ldk::CompoundPtr& compound);

        bool
        doIsAccepting(const wns::ldk::CompoundPtr& compound) const;

        void
        doWakeup();*/

        void
        addListeningAddress(wns::service::nl::Address listenerAddress);

        void
        removeListeningAddress(wns::service::nl::Address listenerAddress);

    private:
        bool
        reachedDestination(const wns::ldk::CompoundPtr& compound);

        bool
        putOnNextHop(const wns::ldk::CompoundPtr& compound);

        wns::ldk::CommandReaderInterface* ipHeaderReader;

        wns::pyconfig::View pyco;

        wns::logger::Logger log;

        bool isForwarding;

        int ttl;

        AddressContainer listeningAddresses;

        wns::ldk::CompoundPtr buffer;

    protected:
        wns::pyconfig::View
        getConfig();

    };
} // ip
#endif //_IP_FORWARDING_HPP

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