HopsSingleMEntries.cc

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//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// 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 Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public License
// along with this program.  If not, see http://www.gnu.org/licenses/.
// 

#include <HopsSingleMEntries/HopsSingleMEntries.h>
#include "APN.h"



namespace HopsSingleMEntries {

Register_Class(HopsSingleMEntries);

using namespace std;
using namespace common_GraphCL;

// A new flow has been inserted/or removed
void HopsSingleMEntries::insertedFlow(const Address &addr, const QoSCube &qos, RMTPort * port){
    string dst = addr.getIpcAddress().getName();
    neighbours[dst].insert(port);
    if(neighbours[dst].size() == 1){
        rt->insertFlow(addr, dst, "", 1);
        routingUpdated();
    }
}
void HopsSingleMEntries::removedFlow(const Address &addr, const QoSCube& qos, RMTPort * port){
    std::string dst = addr.getIpcAddress().getName();
    neighbours[dst].erase(port);
    if(neighbours[dst].size() <= 0){
        rt->removeFlow(addr, dst, "");
        neighbours.erase(dst);
        routingUpdated();
    }
}

//Routing has processes a routing update
void HopsSingleMEntries::routingUpdated(){
    map<string, map<string, nhLMetric<mType>  > > changes = rt->getChanges();

    for(const auto & entry : changes[""]){
        std::vector< RMTPort * > ps;
        for(string nextHop : entry.second.nh){
            RMTPort * p = NULL;
            if(nextHop != "") {
                auto n = neighbours.find(nextHop);
                if(n != neighbours.end()){
                    if(!n->second.empty()) {
                        p = *(n->second.begin());
                    }
                }
            }
            if(p != NULL) {
                ps.push_back(p);
            }
        }
        fwd->addReplace(entry.first, ps);
    }
}

// Called after initialize
void HopsSingleMEntries::onPolicyInit(){
    //Set Forwarding policy
    fwd = getRINAModule<IntMMForwarding *>(this, 2, {MOD_RELAYANDMUX, MOD_POL_RMT_PDUFWD});
    rt = getRINAModule<IntTSimpleRouting<mType> *>(this, 2, {MOD_POL_ROUTING});

    difA = getRINAModule<DA*>(this, 3, {MOD_DIFALLOC, MOD_DA});

    mType infMetric = par("infinite");
    rt->setInfinite(infMetric);
}

}