| /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */ |
| /** |
| * Copyright (c) 2016, Regents of the University of California, |
| * Colorado State University, |
| * University Pierre & Marie Curie, Sorbonne University. |
| * |
| * This file is part of ndn-tools (Named Data Networking Essential Tools). |
| * See AUTHORS.md for complete list of ndn-tools authors and contributors. |
| * |
| * ndn-tools is free software: you can redistribute it and/or modify it under the terms |
| * of the GNU General Public License as published by the Free Software Foundation, |
| * either version 3 of the License, or (at your option) any later version. |
| * |
| * ndn-tools 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 General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License along with |
| * ndn-tools, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>. |
| * |
| * See AUTHORS.md for complete list of ndn-cxx authors and contributors. |
| * |
| * @author Andrea Tosatto |
| */ |
| |
| #include "discover-version-fixed.hpp" |
| |
| #include <cmath> |
| #include <boost/lexical_cast.hpp> |
| |
| namespace ndn { |
| namespace chunks { |
| |
| DiscoverVersionFixed::DiscoverVersionFixed(const Name& prefix, Face& face, const Options& options) |
| : Options(options) |
| , DiscoverVersion(prefix, face, options) |
| , m_strayExcludes() |
| { |
| } |
| |
| void |
| DiscoverVersionFixed::run() |
| { |
| Interest interest(m_prefix); |
| interest.setInterestLifetime(interestLifetime); |
| interest.setMustBeFresh(mustBeFresh); |
| interest.setMaxSuffixComponents(2); |
| interest.setMinSuffixComponents(2); |
| |
| expressInterest(interest, maxRetriesOnTimeoutOrNack, maxRetriesOnTimeoutOrNack); |
| } |
| |
| void |
| DiscoverVersionFixed::handleData(const Interest& interest, const Data& data) |
| { |
| if (isVerbose) |
| std::cerr << "Data: " << data << std::endl; |
| |
| size_t segmentIndex = interest.getName().size(); |
| if (data.getName()[segmentIndex].isSegment()) { |
| if (isVerbose) |
| std::cerr << "Found data with the requested version: " << m_prefix[-1] << std::endl; |
| |
| this->emitSignal(onDiscoverySuccess, data); |
| } |
| else { |
| // data isn't a valid segment, add to the exclude list |
| m_strayExcludes.excludeOne(data.getName()[segmentIndex]); |
| Interest newInterest(interest); |
| newInterest.refreshNonce(); |
| newInterest.setExclude(m_strayExcludes); |
| |
| expressInterest(newInterest, maxRetriesOnTimeoutOrNack, maxRetriesOnTimeoutOrNack); |
| } |
| } |
| |
| } // namespace chunks |
| } // namespace ndn |