/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */

 //

 // Copyright (c) 2009 INESC Porto

 //

 // 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: Gustavo J. A. M. Carneiro  <gjc@inescporto.pt> <gjcarneiro@gmail.com>

 //

 #ifndef __FLOW_CLASSIFIER_H__

 #define __FLOW_CLASSIFIER_H__

 #include "ns3/simple-ref-count.h"

 #include <ostream>

 namespace ns3 {

 typedef uint32_t FlowId;

 typedef uint32_t FlowPacketId;

 /// provides a method to translate raw packet data into abstract

 /// ``flow identifier'' and ``packet identifier'' parameters.  These

 /// identifiers are unsigned 32-bit integers that uniquely identify a

 /// flow and a packet within that flow, respectively, for the whole

 /// simulation, regardless of the point in which the packet was

 /// captured.  These abstract identifiers are used in the

 /// communication between FlowProbe and FlowMonitor, and all collected

 /// statistics reference only those abstract identifiers in order to

 /// keep the core architecture generic and not tied down to any

 /// particular flow capture method or classification system.

 class FlowClassifier : public SimpleRefCount<FlowClassifier>

 {

   FlowId m_lastNewFlowId;

 public:

   FlowClassifier ();

   virtual ~FlowClassifier ();

   virtual void SerializeToXmlStream (std::ostream &os, int indent) const = 0;

 protected:

   FlowId GetNewFlowId ();

 };

 } // namespace ns3

 #endif