Junxiao Shi
88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
|
|
/**
|
|
* Copyright (C) 2014 Named Data Networking Project
|
|
* See COPYING for copyright and distribution information.
|
|
*/
|
|
|
|
#include "status-server.hpp"
|
|
#include "fw/forwarder.hpp"
|
|
#include "core/version.hpp"
|
|
|
|
namespace nfd {
|
|
|
|
const Name StatusServer::DATASET_PREFIX = "ndn:/localhost/nfd/status";
|
|
const ndn::Milliseconds StatusServer::RESPONSE_FRESHNESS = 5000;
|
|
|
|
static inline ndn::nfd::Status::Timestamp
|
|
now()
|
|
{
|
|
// make sure boost::chrono::system_clock's epoch is UNIX epoch
|
|
BOOST_ASSERT(static_cast<std::time_t>(0) == boost::chrono::system_clock::to_time_t(
|
|
boost::chrono::system_clock::time_point(
|
|
boost::chrono::duration_cast<boost::chrono::system_clock::duration>(
|
|
ndn::nfd::Status::Timestamp::duration::zero()
|
|
)
|
|
)
|
|
));
|
|
|
|
return ndn::nfd::Status::Timestamp(
|
|
boost::chrono::duration_cast<ndn::nfd::Status::Timestamp::duration>(
|
|
boost::chrono::system_clock::now().time_since_epoch()
|
|
)
|
|
);
|
|
}
|
|
|
|
StatusServer::StatusServer(shared_ptr<AppFace> face, Forwarder& forwarder)
|
|
: m_face(face)
|
|
, m_forwarder(forwarder)
|
|
, m_startTimestamp(now())
|
|
{
|
|
m_face->setInterestFilter(DATASET_PREFIX, bind(&StatusServer::onInterest, this, _2));
|
|
}
|
|
|
|
void
|
|
StatusServer::onInterest(const Interest& interest) const
|
|
{
|
|
Name name(DATASET_PREFIX);
|
|
// TODO use NumberComponent
|
|
name.append(ndn::Name::Component::fromNumberWithMarker(ndn::ndn_getNowMilliseconds(), 0x00));
|
|
name.append(ndn::Name::Component::fromNumberWithMarker(0, 0x00));
|
|
|
|
shared_ptr<Data> data = make_shared<Data>(name);
|
|
data->setFreshnessPeriod(RESPONSE_FRESHNESS);
|
|
|
|
shared_ptr<ndn::nfd::Status> payload = this->collectStatus();
|
|
ndn::EncodingBuffer payloadBuffer;
|
|
payload->wireEncode(payloadBuffer);
|
|
data->setContent(payloadBuffer.buf(), payloadBuffer.size());
|
|
|
|
m_face->sign(*data);
|
|
m_face->put(*data);
|
|
}
|
|
|
|
shared_ptr<ndn::nfd::Status>
|
|
StatusServer::collectStatus() const
|
|
{
|
|
shared_ptr<ndn::nfd::Status> status = make_shared<ndn::nfd::Status>();
|
|
|
|
status->setNfdVersion(NFD_VERSION);
|
|
status->setStartTimestamp(m_startTimestamp);
|
|
status->setCurrentTimestamp(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());
|
|
|
|
const ForwarderCounters& counters = m_forwarder.getCounters();
|
|
status->setNInInterests(counters.getInInterest());
|
|
status->setNOutInterests(counters.getOutInterest());
|
|
status->setNInDatas(counters.getInData());
|
|
status->setNOutDatas(counters.getOutData());
|
|
|
|
return status;
|
|
}
|
|
|
|
} // namespace nfd
|