/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013-2017 Regents of the University of California.
 *
 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
 *
 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later version.
 *
 * ndn-cxx library 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 Lesser General Public License for more details.
 *
 * You should have received copies of the GNU General Public License and GNU Lesser
 * General Public License along with ndn-cxx, 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.
 */

#include "packet-base.hpp"
#include "lp/tags.hpp"

namespace ndn {

uint64_t
PacketBase::getCongestionMark() const
{
  auto mark = this->getTag<lp::CongestionMarkTag>();

  if (mark == nullptr) {
    return 0;
  }
  else {
    return *mark;
  }
}

void
PacketBase::setCongestionMark(uint64_t mark)
{
  if (mark != 0) {
    auto tag = make_shared<lp::CongestionMarkTag>(mark);
    this->setTag(std::move(tag));
  }
  else {
    this->removeTag<lp::CongestionMarkTag>();
  }
}

} // namespace ndn