mpdu-aggregator.h

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/*
 * 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 "qos-utils.h"
#include "wifi-mode.h"
 
#include "ns3/nstime.h"
#include "ns3/object.h"
 
#include <vector>
 
namespace ns3
{
 
class AmpduSubframeHeader;
class WifiTxVector;
class QosTxop;
class Packet;
class WifiMac;
class WifiMpdu;
class WifiTxParameters;
class HtFrameExchangeManager;
 
class MpduAggregator : public Object
{
  public:
    typedef std::map<AcIndex, Ptr<QosTxop>> EdcaQueues;
 
    static TypeId GetTypeId();
 
    MpduAggregator() = default;
    ~MpduAggregator() override = default;
 
    static void Aggregate(Ptr<const WifiMpdu> mpdu, Ptr<Packet> ampdu, bool isSingle);
 
    void SetLinkId(uint8_t linkId);
 
    static uint32_t GetSizeIfAggregated(uint32_t mpduSize, uint32_t ampduSize);
 
    uint32_t GetMaxAmpduSize(Mac48Address recipient,
                             uint8_t tid,
                             WifiModulationClass modulation) const;
 
    std::vector<Ptr<WifiMpdu>> GetNextAmpdu(Ptr<WifiMpdu> mpdu,
                                            WifiTxParameters& txParams,
                                            Time availableTime) const;
 
    void SetWifiMac(const Ptr<WifiMac> mac);
 
    static uint8_t CalculatePadding(uint32_t ampduSize);
 
    static AmpduSubframeHeader GetAmpduSubframeHeader(uint16_t mpduSize, bool isSingle);
 
  protected:
    void DoDispose() override;
 
  private:
    Ptr<WifiMac> m_mac;                  
    Ptr<HtFrameExchangeManager> m_htFem; 
    uint8_t m_linkId{0};                 
};
 
} // namespace ns3
 
#endif /* MPDU_AGGREGATOR_H */