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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
/*
* Copyright (c) 2011 University of California, Los Angeles
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Ilya Moiseenko <iliamo@cs.ucla.edu>
* Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*/
#include "ndn-producer.h"
#include "ns3/log.h"
#include "ns3/ndn-interest.h"
#include "ns3/ndn-content-object.h"
#include "ns3/string.h"
#include "ns3/uinteger.h"
#include "ns3/packet.h"
#include "ns3/simulator.h"
#include "ns3/ndn-app-face.h"
#include "ns3/ndn-fib.h"
#include "ns3/ndnSIM/utils/ndn-fw-hop-count-tag.h"
#include <boost/ref.hpp>
#include <boost/lambda/lambda.hpp>
#include <boost/lambda/bind.hpp>
namespace ll = boost::lambda;
NS_LOG_COMPONENT_DEFINE ("ndn.Producer");
namespace ns3 {
namespace ndn {
NS_OBJECT_ENSURE_REGISTERED (Producer);
TypeId
Producer::GetTypeId (void)
{
static TypeId tid = TypeId ("ns3::ndn::Producer")
.SetGroupName ("Ndn")
.SetParent<App> ()
.AddConstructor<Producer> ()
.AddAttribute ("Prefix","Prefix, for which producer has the data",
StringValue ("/"),
MakeNameAccessor (&Producer::m_prefix),
MakeNameChecker ())
.AddAttribute ("Postfix", "Postfix that is added to the output data (e.g., for adding producer-uniqueness)",
StringValue ("/"),
MakeNameAccessor (&Producer::m_postfix),
MakeNameChecker ())
.AddAttribute ("PayloadSize", "Virtual payload size for Content packets",
UintegerValue (1024),
MakeUintegerAccessor(&Producer::m_virtualPayloadSize),
MakeUintegerChecker<uint32_t>())
.AddAttribute ("Freshness", "Freshness of data packets, if 0, then unlimited freshness",
TimeValue (Seconds (0)),
MakeTimeAccessor (&Producer::m_freshness),
MakeTimeChecker ())
;
return tid;
}
Producer::Producer ()
{
// NS_LOG_FUNCTION_NOARGS ();
}
// inherited from Application base class.
void
Producer::StartApplication ()
{
NS_LOG_FUNCTION_NOARGS ();
NS_ASSERT (GetNode ()->GetObject<Fib> () != 0);
App::StartApplication ();
NS_LOG_DEBUG ("NodeID: " << GetNode ()->GetId ());
Ptr<Fib> fib = GetNode ()->GetObject<Fib> ();
Ptr<fib::Entry> fibEntry = fib->Add (m_prefix, m_face, 0);
fibEntry->UpdateStatus (m_face, fib::FaceMetric::NDN_FIB_GREEN);
// // make face green, so it will be used primarily
// StaticCast<fib::FibImpl> (fib)->modify (fibEntry,
// ll::bind (&fib::Entry::UpdateStatus,
// ll::_1, m_face, fib::FaceMetric::NDN_FIB_GREEN));
}
void
Producer::StopApplication ()
{
NS_LOG_FUNCTION_NOARGS ();
NS_ASSERT (GetNode ()->GetObject<Fib> () != 0);
App::StopApplication ();
}
void
Producer::OnInterest (Ptr<const Interest> interest)
{
App::OnInterest (interest); // tracing inside
NS_LOG_FUNCTION (this << interest);
if (!m_active) return;
Ptr<ContentObject> data = Create<ContentObject> (Create<Packet> (m_virtualPayloadSize));
Ptr<Name> dataName = Create<Name> (interest->GetName ());
dataName->Append (m_postfix);
data->SetName (dataName);
data->SetFreshness (m_freshness);
NS_LOG_INFO ("node("<< GetNode()->GetId() <<") respodning with ContentObject:\n" << data->GetName ());
// Echo back FwHopCountTag if exists
FwHopCountTag hopCountTag;
if (interest->GetPayload ()->PeekPacketTag (hopCountTag))
{
data->GetPayload ()->AddPacketTag (hopCountTag);
}
m_face->ReceiveData (data);
m_transmittedContentObjects (data, this, m_face);
}
} // namespace ndn
} // namespace ns3