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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2013 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: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*/
#ifndef NDN_FW_HOP_COUNT_TAG_H
#define NDN_FW_HOP_COUNT_TAG_H
#include "ns3/tag.h"
namespace ns3 {
namespace ndn {
/**
* @ingroup ndn-fw
* @brief Packet tag that is used to track hop count for Interest-Data pairs
*/
class FwHopCountTag : public Tag
{
public:
static TypeId
GetTypeId (void);
/**
* @brief Default constructor
*/
FwHopCountTag () : m_hopCount (0) { };
/**
* @brief Destructor
*/
~FwHopCountTag () { }
/**
* @brief Increment hop count
*/
void
Increment () { m_hopCount ++; }
/**
* @brief Get value of hop count
*/
uint32_t
Get () const { return m_hopCount; }
////////////////////////////////////////////////////////
// from ObjectBase
////////////////////////////////////////////////////////
virtual TypeId
GetInstanceTypeId () const;
////////////////////////////////////////////////////////
// from Tag
////////////////////////////////////////////////////////
virtual uint32_t
GetSerializedSize () const;
virtual void
Serialize (TagBuffer i) const;
virtual void
Deserialize (TagBuffer i);
virtual void
Print (std::ostream &os) const;
private:
uint32_t m_hopCount;
};
} // namespace ndn
} // namespace ns3
#endif // NDN_FW_HOP_COUNT_TAG_H