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

/*

 * Copyright (c) 2005 INRIA

 *

 * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#ifndef MAC_RX_MIDDLE_H

#define MAC_RX_MIDDLE_H

#include <map>

#include <utility>

#include "ns3/callback.h"

#include "ns3/mac48-address.h"

#include "ns3/packet.h"

namespace ns3 {

class WifiMacHeader;

class OriginatorRxStatus;

class MacRxMiddle

{

public:

  MacRxMiddle ();

  ~MacRxMiddle ();

  void SetForwardCallback (ForwardUpCallback callback);

private:

  OriginatorRxStatus *Lookup (WifiMacHeader const*hdr);

  bool IsDuplicate (WifiMacHeader const *hdr, OriginatorRxStatus *originator) const;

  bool SequenceControlSmaller (int seqa, int seqb);

  typedef std::map <Mac48Address, OriginatorRxStatus *, std::less<Mac48Address> > Originators;

  typedef std::map <std::pair<Mac48Address, uint8_t>, OriginatorRxStatus *, std::less<std::pair<Mac48Address,uint8_t> > > QosOriginators;

  typedef std::map <Mac48Address, OriginatorRxStatus *, std::less<Mac48Address> >::iterator OriginatorsI;

  typedef std::map <std::pair<Mac48Address, uint8_t>, OriginatorRxStatus *, std::less<std::pair<Mac48Address,uint8_t> > >::iterator QosOriginatorsI;

  Originators m_originatorStatus;

  QosOriginators m_qosOriginatorStatus;

  ForwardUpCallback m_callback;

};

} // namespace ns3

#endif /* MAC_RX_MIDDLE_H */