blob: 7984e2839d15f7d4403241afa10dddcc40cff15d [file] [log] [blame]
/* -*- 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/>.
**/
// custom-app.cpp
#include "custom-app.hpp"
#include "ns3/ptr.h"
#include "ns3/log.h"
#include "ns3/simulator.h"
#include "ns3/packet.h"
#include "ns3/ndnSIM/helper/ndn-stack-helper.hpp"
#include "ns3/ndnSIM/helper/ndn-fib-helper.hpp"
#include "ns3/random-variable-stream.h"
NS_LOG_COMPONENT_DEFINE("CustomApp");
namespace ns3 {
NS_OBJECT_ENSURE_REGISTERED(CustomApp);
// register NS-3 type
TypeId
CustomApp::GetTypeId()
{
static TypeId tid = TypeId("CustomApp").SetParent<ndn::App>().AddConstructor<CustomApp>();
return tid;
}
// Processing upon start of the application
void
CustomApp::StartApplication()
{
// initialize ndn::App
ndn::App::StartApplication();
// Add entry to FIB for `/prefix/sub`
ndn::FibHelper::AddRoute(GetNode(), "/prefix/sub", m_face, 0);
// Schedule send of first interest
Simulator::Schedule(Seconds(1.0), &CustomApp::SendInterest, this);
}
// Processing when application is stopped
void
CustomApp::StopApplication()
{
// cleanup ndn::App
ndn::App::StopApplication();
}
void
CustomApp::SendInterest()
{
/////////////////////////////////////
// Sending one Interest packet out //
/////////////////////////////////////
// Create and configure ndn::Interest
auto interest = std::make_shared<ndn::Interest>("/prefix/sub");
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 " << *interest);
// Call trace (for logging purposes)
m_transmittedInterests(interest, this, m_face);
m_appLink->onReceiveInterest(*interest);
}
// Callback that will be called when Interest arrives
void
CustomApp::OnInterest(std::shared_ptr<const ndn::Interest> interest)
{
ndn::App::OnInterest(interest);
NS_LOG_DEBUG("Received Interest packet for " << interest->getName());
// Note that Interests send out by the app will not be sent back to the app !
auto data = std::make_shared<ndn::Data>(interest->getName());
data->setFreshnessPeriod(ndn::time::milliseconds(1000));
data->setContent(std::make_shared< ::ndn::Buffer>(1024));
ndn::StackHelper::getKeyChain().sign(*data);
NS_LOG_DEBUG("Sending Data packet for " << data->getName());
// Call trace (for logging purposes)
m_transmittedDatas(data, this, m_face);
m_appLink->onReceiveData(*data);
}
// Callback that will be called when Data arrives
void
CustomApp::OnData(std::shared_ptr<const ndn::Data> data)
{
NS_LOG_DEBUG("Receiving Data packet for " << data->getName());
std::cout << "DATA received for name " << data->getName() << std::endl;
}
} // namespace ns3