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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2014, Regents of the University of California,
* Arizona Board of Regents,
* Colorado State University,
* University Pierre & Marie Curie, Sorbonne University,
* Washington University in St. Louis,
* Beijing Institute of Technology,
* The University of Memphis
*
* This file is part of NFD (Named Data Networking Forwarding Daemon).
* See AUTHORS.md for complete list of NFD authors and contributors.
*
* NFD 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.
*
* NFD 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
* NFD, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
*/
#include "status-server.hpp"
#include "fw/forwarder.hpp"
#include "version.hpp"
namespace nfd {
const Name StatusServer::DATASET_PREFIX = "ndn:/localhost/nfd/status";
const time::milliseconds StatusServer::RESPONSE_FRESHNESS = time::milliseconds(5000);
StatusServer::StatusServer(shared_ptr<AppFace> face, Forwarder& forwarder)
: m_face(face)
, m_forwarder(forwarder)
, m_startTimestamp(time::system_clock::now())
{
m_face->setInterestFilter(DATASET_PREFIX, bind(&StatusServer::onInterest, this, _2));
}
void
StatusServer::onInterest(const Interest& interest) const
{
Name name(DATASET_PREFIX);
name.appendVersion();
name.appendSegment(0);
shared_ptr<Data> data = make_shared<Data>(name);
data->setFreshnessPeriod(RESPONSE_FRESHNESS);
shared_ptr<ndn::nfd::ForwarderStatus> status = this->collectStatus();
data->setContent(status->wireEncode());
m_face->sign(*data);
m_face->put(*data);
}
shared_ptr<ndn::nfd::ForwarderStatus>
StatusServer::collectStatus() const
{
shared_ptr<ndn::nfd::ForwarderStatus> status = make_shared<ndn::nfd::ForwarderStatus>();
status->setNfdVersion(NFD_VERSION);
status->setStartTimestamp(m_startTimestamp);
status->setCurrentTimestamp(time::system_clock::now());
status->setNNameTreeEntries(m_forwarder.getNameTree().size());
status->setNFibEntries(m_forwarder.getFib().size());
status->setNPitEntries(m_forwarder.getPit().size());
status->setNMeasurementsEntries(m_forwarder.getMeasurements().size());
status->setNCsEntries(m_forwarder.getCs().size());
m_forwarder.getCounters().copyTo(*status);
return status;
}
} // namespace nfd