75 lines
2.5 KiB
C++
75 lines
2.5 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2016-2017, Regents of the University of California,
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* Colorado State University,
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* University Pierre & Marie Curie, Sorbonne University.
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*
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* This file is part of ndn-tools (Named Data Networking Essential Tools).
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* See AUTHORS.md for complete list of ndn-tools authors and contributors.
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*
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* ndn-tools 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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* ndn-tools 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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* ndn-tools, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
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*
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* See AUTHORS.md for complete list of ndn-cxx authors and contributors.
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*
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* @author Andrea Tosatto
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*/
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#include "discover-version-fixed.hpp"
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namespace ndn {
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namespace chunks {
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DiscoverVersionFixed::DiscoverVersionFixed(const Name& prefix, Face& face, const Options& options)
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: Options(options)
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, DiscoverVersion(prefix, face)
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{
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}
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void
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DiscoverVersionFixed::run()
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{
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Interest interest(m_prefix);
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interest.setInterestLifetime(interestLifetime);
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interest.setMustBeFresh(mustBeFresh);
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interest.setMaxSuffixComponents(2);
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interest.setMinSuffixComponents(2);
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expressInterest(interest, maxRetriesOnTimeoutOrNack, maxRetriesOnTimeoutOrNack);
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}
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void
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DiscoverVersionFixed::handleData(const Interest& interest, const Data& data)
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{
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if (isVerbose)
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std::cerr << "Data: " << data << std::endl;
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size_t segmentIndex = interest.getName().size();
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if (data.getName()[segmentIndex].isSegment()) {
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if (isVerbose)
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std::cerr << "Found data with the requested version: " << m_prefix[-1] << std::endl;
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this->emitSignal(onDiscoverySuccess, data);
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}
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else {
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// data isn't a valid segment, add to the exclude list
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m_strayExcludes.excludeOne(data.getName()[segmentIndex]);
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Interest newInterest(interest);
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newInterest.refreshNonce();
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newInterest.setExclude(m_strayExcludes);
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expressInterest(newInterest, maxRetriesOnTimeoutOrNack, maxRetriesOnTimeoutOrNack);
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}
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}
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} // namespace chunks
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} // namespace ndn
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