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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2011 UCLA
*
* 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*/
#ifndef CCNX_RATE_L3_TRACER_H
#define CCNX_RATE_L3_TRACER_H
#include "ns3/ndnSIM/model/ndn-common.hpp"
#include "ndn-l3-tracer.hpp"
#include "ns3/nstime.h"
#include "ns3/event-id.h"
#include "ns3/node-container.h"
#include <tuple>
#include <map>
#include <list>
namespace ns3 {
namespace ndn {
/**
* @ingroup ndn-tracers
* @brief NDN network-layer rate tracer
*/
class L3RateTracer : public L3Tracer {
public:
/**
* @brief Helper method to install tracers on all simulation nodes
*
* @param file File to which traces will be written. If filename is -, then std::out is used
* @param averagingPeriod Defines averaging period for the rate calculation,
* as well as how often data will be written into the trace file (default, every half
*second)
*/
static void
InstallAll(const std::string& file, Time averagingPeriod = Seconds(0.5));
/**
* @brief Helper method to install tracers on the selected simulation nodes
*
* @param nodes Nodes on which to install tracer
* @param file File to which traces will be written. If filename is -, then std::out is used
* @param averagingPeriod How often data will be written into the trace file (default, every half
*second)
*/
static void
Install(const NodeContainer& nodes, const std::string& file, Time averagingPeriod = Seconds(0.5));
/**
* @brief Helper method to install tracers on a specific simulation node
*
* @param nodes Nodes on which to install tracer
* @param file File to which traces will be written. If filename is -, then std::out is used
* @param averagingPeriod How often data will be written into the trace file (default, every half
*second)
*/
static void
Install(Ptr<Node> node, const std::string& file, Time averagingPeriod = Seconds(0.5));
/**
* @brief Explicit request to remove all statically created tracers
*
* This method can be helpful if simulation scenario contains several independent run,
* or if it is desired to do a postprocessing of the resulting data
*/
static void
Destroy();
/**
* @brief Trace constructor that attaches to the node using node pointer
* @param os reference to the output stream
* @param node pointer to the node
*/
L3RateTracer(shared_ptr<std::ostream> os, Ptr<Node> node);
/**
* @brief Trace constructor that attaches to the node using node name
* @param os reference to the output stream
* @param nodeName name of the node registered using Names::Add
*/
L3RateTracer(shared_ptr<std::ostream> os, const std::string& node);
/**
* @brief Destructor
*/
virtual ~L3RateTracer();
/**
* @brief Helper method to install tracers on a specific simulation node
*
* @param nodes Nodes on which to install tracer
* @param outputStream Smart pointer to a stream
* @param averagingPeriod How often data will be written into the trace file (default, every half
*second)
*
* @returns a tuple of reference to output stream and list of tracers. !!! Attention !!! This
*tuple needs to be preserved
* for the lifetime of simulation, otherwise SEGFAULTs are inevitable
*/
static Ptr<L3RateTracer>
Install(Ptr<Node> node, shared_ptr<std::ostream> outputStream,
Time averagingPeriod = Seconds(0.5));
// from L3Tracer
virtual void
PrintHeader(std::ostream& os) const;
virtual void
Print(std::ostream& os) const;
protected:
// from L3Tracer
virtual void
OutInterests(const Interest& interest, const Face& face);
virtual void
InInterests(const Interest& interest, const Face& face);
virtual void
OutData(const Data& data, const Face& face);
virtual void
InData(const Data& data, const Face& face);
// virtual void
// SatisfiedInterests(Ptr<const pit::Entry>);
// virtual void
// TimedOutInterests(Ptr<const pit::Entry>);
private:
void
SetAveragingPeriod(const Time& period);
void
PeriodicPrinter();
void
Reset();
private:
shared_ptr<std::ostream> m_os;
Time m_period;
EventId m_printEvent;
mutable std::map<shared_ptr<const Face>, std::tuple<Stats, Stats, Stats, Stats>> m_stats;
};
} // namespace ndn
} // namespace ns3
#endif // CCNX_RATE_L3_TRACER_H