73 lines
2.5 KiB
C++
73 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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#ifndef NDN_TOOLS_CHUNKS_CATCHUNKS_DISCOVER_VERSION_FIXED_HPP
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#define NDN_TOOLS_CHUNKS_CATCHUNKS_DISCOVER_VERSION_FIXED_HPP
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#include "discover-version.hpp"
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namespace ndn {
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namespace chunks {
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/**
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* @brief Service to retrieve a specific version segment. The version is specified in the prefix
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*
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* Send a request of a specific version and expect to be answered with one segment.
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*
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* The received name component after version can be an invalid segment number, this component will
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* be excluded in the next interests. In the unlikely case that there are too many excluded
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* components such that the Interest cannot fit in ndn::MAX_NDN_PACKET_SIZE, the discovery
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* procedure will throw Face::Error.
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*
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* DiscoverVersionFixed's user is notified once after one segment with the user specified version
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* is found or on failure to find any Data version.
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*/
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class DiscoverVersionFixed : public DiscoverVersion
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{
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public:
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/**
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* @brief create a DiscoverVersionFixed service
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*/
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DiscoverVersionFixed(const Name& prefix, Face& face, const Options& options);
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/**
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* @brief identify the latest Data version published.
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*/
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void
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run() final;
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private:
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void
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handleData(const Interest& interest, const Data& data) final;
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private:
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Exclude m_strayExcludes;
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};
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} // namespace chunks
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} // namespace ndn
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#endif // NDN_TOOLS_CHUNKS_CATCHUNKS_DISCOVER_VERSION_FIXED_HPP
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