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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/**
* Copyright (c) 2011-2015 Regents of the University of California.
*
* This file is part of ndnSIM. See AUTHORS for complete list of ndnSIM authors and
* contributors.
*
* ndnSIM 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.
*
* ndnSIM 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
* ndnSIM, e.g., in COPYING.md file. If not, see <http://www.gnu.org/licenses/>.
**/
// dumb-requester.cpp
#include "one-interest-requester.hpp"
#include "ns3/ptr.h"
#include "ns3/log.h"
#include "ns3/simulator.h"
#include "ns3/packet.h"
#include "ns3/random-variable-stream.h"
#include "ns3/string.h"
NS_LOG_COMPONENT_DEFINE("OneInterestRequester");
namespace ns3 {
NS_OBJECT_ENSURE_REGISTERED(OneInterestRequester);
// register NS-3 type
TypeId
OneInterestRequester::GetTypeId()
{
static TypeId tid =
TypeId("OneInterestRequester")
.SetParent<ndn::App>()
.AddConstructor<OneInterestRequester>()
.AddAttribute("Prefix", "Requested name", StringValue("/dumb-interest"),
ndn::MakeNameAccessor(&OneInterestRequester::m_name), ndn::MakeNameChecker());
return tid;
}
OneInterestRequester::OneInterestRequester()
: m_isRunning(false)
{
}
// Processing upon start of the application
void
OneInterestRequester::StartApplication()
{
// initialize ndn::App
ndn::App::StartApplication();
m_isRunning = true;
Simulator::ScheduleNow(&OneInterestRequester::SendInterest, this);
}
// Processing when application is stopped
void
OneInterestRequester::StopApplication()
{
m_isRunning = false;
// cleanup ndn::App
ndn::App::StopApplication();
}
void
OneInterestRequester::SendInterest()
{
if (!m_isRunning)
return;
/////////////////////////////////////
// Sending one Interest packet out //
/////////////////////////////////////
// Create and configure ndn::Interest
auto interest = std::make_shared<ndn::Interest>(m_name);
Ptr<UniformRandomVariable> rand = CreateObject<UniformRandomVariable>();
interest->setNonce(rand->GetValue(0, std::numeric_limits<uint32_t>::max()));
interest->setInterestLifetime(ndn::time::seconds(1));
NS_LOG_DEBUG("Sending Interest packet for " << m_name);
// Call trace (for logging purposes)
m_transmittedInterests(interest, this, m_face);
NS_LOG_DEBUG(">> I: " << m_name);
// Forward packet to lower (network) layer
m_appLink->onReceiveInterest(*interest);
}
void
OneInterestRequester::OnData(std::shared_ptr<const ndn::Data> data)
{
NS_LOG_DEBUG("<< D: " << data->getName());
}
} // namespace ns3