DV.h

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// The MIT License (MIT)
//
// Copyright (c) 2014-2016 Brno University of Technology, PRISTINE project
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

/*
 * DV.h
 *
 *  Created on: Mar 23, 2015
 *      Author: gaixas1
 */

#ifndef DV_H_
#define DV_H_

#include <DomainRouting/rModule.h>

namespace DMRnmsDV {

using namespace DMRnms;

// Data structures

struct rtEntry {
    std::string addr;
    unsigned short metric;
    rtEntry()
        :addr(""), metric(UINT16_MAX){}
    rtEntry(const std::string &_addr, const unsigned short &_metric)
        :addr(_addr), metric(_metric){}
};
typedef std::vector<rtEntry> entriesL;
typedef std::vector<rtEntry>::iterator entriesIt;

typedef std::map<Address, unsigned short> neighMetric;
typedef neighMetric::iterator neighMetricIt;


struct tEntry {
    Address addr;
    unsigned short metric;
    tEntry()
        :addr(""), metric(UINT16_MAX){}
    tEntry(const std::string &_addr, const unsigned short &_metric)
        :addr(_addr), metric(_metric){}
};
typedef std::map<std::string, tEntry> tTable;
typedef tTable::iterator tTableIt;

typedef std::set<std::string> sSet;
typedef sSet::iterator sSetIt;



// Update Message

class DVUpdate : public RoutingUpdate {
public:
    DVUpdate(const Address &_addr, const std::string &_domain);

    void addEntry(rtEntry _e);

    entriesIt entriesBegin();
    entriesIt entriesEnd();

protected:
    entriesL entries;
};



// Routing Module

class DomainRouting;

class DV: public rModule {
public:
    DV(Routing * parent, const Address &_nAddr,const std::string &_domain, const std::string &_addr);

    bool processUpdate(RoutingUpdate * update);
    void addFlow(const Address &_nAddr, const std::string &_addr, const unsigned short &_metric);
    void removeFlow(const Address &_nAddr, const std::string &_addr);

    void addAddr(const std::string &_addr);
    void removeAddr(const std::string &_addr);

    void setInfMetric(const unsigned short &inf);

    dmNxt getChanges();
    dmNxt getAll();

    void handleMessage(cMessage *msg);

protected:
    tTable table;
    neighMetric nei;
    unsigned short infMetric;
    s2A changes;
    sSet changedEntries;
    sSet myAddrSet;

    bool scheduledUpdate;
    void scheduleUpdate();
};

} /* namespace DomainRoutingDV */

#endif /* DV_H_ */