mpdu-aggregator.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2013
 *
 * 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: Ghada Badawy <gbadawy@gmail.com>
 */

#ifndef MPDU_AGGREGATOR_H
#define MPDU_AGGREGATOR_H

#include "ns3/object.h"

namespace ns3 {

class AmpduSubframeHeader;
class WifiMacHeader;
class Packet;

class MpduAggregator : public Object
{
public:
  typedef std::list<std::pair<Ptr<Packet>, AmpduSubframeHeader> > DeaggregatedMpdus;
  typedef std::list<std::pair<Ptr<Packet>, AmpduSubframeHeader> >::const_iterator DeaggregatedMpdusCI;

  static TypeId GetTypeId (void);

  MpduAggregator ();
  virtual ~MpduAggregator ();

  void SetMaxAmpduSize (uint16_t maxSize);
  uint16_t GetMaxAmpduSize (void) const;

  bool Aggregate (Ptr<const Packet> packet, Ptr<Packet> aggregatedPacket) const;
  void AggregateSingleMpdu (Ptr<const Packet> packet, Ptr<Packet> aggregatedPacket) const;
  void AddHeaderAndPad (Ptr<Packet> packet, bool last, bool isSingleMpdu) const;
  bool CanBeAggregated (uint32_t packetSize, Ptr<Packet> aggregatedPacket, uint8_t blockAckSize) const;

  static DeaggregatedMpdus Deaggregate (Ptr<Packet> aggregatedPacket);


private:
  uint8_t CalculatePadding (Ptr<const Packet> packet) const;

  uint16_t m_maxAmpduLength; 
};

}  //namespace ns3

#endif /* MPDU_AGGREGATOR_H */