Alexander Afanasyev
74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (c) 2014 Regents of the University of California,
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* Arizona Board of Regents,
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* Colorado State University,
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* University Pierre & Marie Curie, Sorbonne University,
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* Washington University in St. Louis,
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* Beijing Institute of Technology
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*
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* This file is part of NFD (Named Data Networking Forwarding Daemon).
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* See AUTHORS.md for complete list of NFD authors and contributors.
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*
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* NFD is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Foundation,
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* either version 3 of the License, or (at your option) any later version.
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*
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* NFD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
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**/
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#include "best-route-strategy.hpp"
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namespace nfd {
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namespace fw {
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const Name BestRouteStrategy::STRATEGY_NAME("ndn:/localhost/nfd/strategy/best-route");
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BestRouteStrategy::BestRouteStrategy(Forwarder& forwarder, const Name& name)
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: Strategy(forwarder, name)
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{
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}
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BestRouteStrategy::~BestRouteStrategy()
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{
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}
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static inline bool
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predicate_PitEntry_canForwardTo_NextHop(shared_ptr<pit::Entry> pitEntry,
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const fib::NextHop& nexthop)
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{
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return pitEntry->canForwardTo(*nexthop.getFace());
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}
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void
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BestRouteStrategy::afterReceiveInterest(const Face& inFace,
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const Interest& interest,
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shared_ptr<fib::Entry> fibEntry,
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shared_ptr<pit::Entry> pitEntry)
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{
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if (pitEntry->hasUnexpiredOutRecords()) {
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// not a new Interest, don't forward
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return;
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}
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const fib::NextHopList& nexthops = fibEntry->getNextHops();
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fib::NextHopList::const_iterator it = std::find_if(nexthops.begin(), nexthops.end(),
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bind(&predicate_PitEntry_canForwardTo_NextHop, pitEntry, _1));
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if (it == nexthops.end()) {
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this->rejectPendingInterest(pitEntry);
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return;
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}
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shared_ptr<Face> outFace = it->getFace();
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this->sendInterest(pitEntry, outFace);
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}
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} // namespace fw
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} // namespace nfd
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