Junxiao Shi
83 lines
2.7 KiB
C++
83 lines
2.7 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/**
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* Copyright (c) 2014-2016, 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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* The University of Memphis.
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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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#ifndef NFD_DAEMON_TABLE_PIT_OUT_RECORD_HPP
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#define NFD_DAEMON_TABLE_PIT_OUT_RECORD_HPP
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#include "pit-face-record.hpp"
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namespace nfd {
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namespace pit {
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/** \brief contains information about an Interest toward an outgoing face
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*/
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class OutRecord : public FaceRecord
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{
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public:
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explicit
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OutRecord(Face& face);
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/** \return last NACK returned by \p getFace()
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*
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* A nullptr return value means the Interest is still pending or has timed out.
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* A non-null return value means the last outgoing Interest has been NACKed.
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*/
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const lp::NackHeader*
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getIncomingNack() const
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{
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return m_incomingNack.get();
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}
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/** \brief sets a NACK received from \p getFace()
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* \return whether incoming NACK is accepted
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*
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* This is invoked in incoming NACK pipeline.
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* An incoming NACK is accepted if its Nonce matches \p getLastNonce().
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* If accepted, \p nack.getHeader() will be copied,
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* and any pointer previously returned by \p .getIncomingNack() .
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*/
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bool
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setIncomingNack(const lp::Nack& nack);
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/** \brief clears last NACK
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*
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* This is invoked in outgoing Interest pipeline.
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* This invalidates any pointer previously returned by \p .getIncomingNack() .
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*/
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void
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clearIncomingNack()
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{
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m_incomingNack.reset();
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}
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private:
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unique_ptr<lp::NackHeader> m_incomingNack;
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};
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} // namespace pit
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} // namespace nfd
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#endif // NFD_DAEMON_TABLE_PIT_IN_RECORD_HPP
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