msdu-aggregator.h

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/*
 * Copyright (c) 2009 MIRKO BANCHI
 *
 * 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: Mirko Banchi <mk.banchi@gmail.com>
 */
 
#ifndef MSDU_AGGREGATOR_H
#define MSDU_AGGREGATOR_H
 
#include "qos-utils.h"
#include "wifi-mode.h"
#include "wifi-mpdu.h"
 
#include "ns3/nstime.h"
#include "ns3/object.h"
 
#include <map>
 
namespace ns3
{
 
class Packet;
class QosTxop;
class WifiTxVector;
class WifiMac;
class HtFrameExchangeManager;
class WifiTxParameters;
 
class MsduAggregator : public Object
{
  public:
    typedef std::map<AcIndex, Ptr<QosTxop>> EdcaQueues;
 
    static TypeId GetTypeId();
 
    MsduAggregator();
    ~MsduAggregator() override;
 
    static uint16_t GetSizeIfAggregated(uint16_t msduSize, uint16_t amsduSize);
 
    Ptr<WifiMpdu> GetNextAmsdu(Ptr<WifiMpdu> peekedItem,
                               WifiTxParameters& txParams,
                               Time availableTime) const;
 
    uint16_t GetMaxAmsduSize(Mac48Address recipient,
                             uint8_t tid,
                             WifiModulationClass modulation) const;
 
    static WifiMpdu::DeaggregatedMsdus Deaggregate(Ptr<Packet> aggregatedPacket);
 
    void SetWifiMac(const Ptr<WifiMac> mac);
 
    static uint8_t CalculatePadding(uint16_t amsduSize);
 
  protected:
    void DoDispose() override;
 
  private:
    Ptr<WifiMac> m_mac;                  
    Ptr<HtFrameExchangeManager> m_htFem; 
};
 
} // namespace ns3
 
#endif /* MSDU_AGGREGATOR_H */