supported-rates.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2006 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 SUPPORTED_RATES_H
#define SUPPORTED_RATES_H

#include "wifi-information-element.h"

namespace ns3 {

class SupportedRates;

class ExtendedSupportedRatesIE : public WifiInformationElement
{
public:
  ExtendedSupportedRatesIE ();
  ExtendedSupportedRatesIE (SupportedRates *rates);

  // Implementations of pure virtual methods of WifiInformationElement
  WifiInformationElementId ElementId () const override;
  uint8_t GetInformationFieldSize () const override;
  void SerializeInformationField (Buffer::Iterator start) const override;
  uint8_t DeserializeInformationField (Buffer::Iterator start,
                                       uint8_t length) override;
  /* This information element is a bit special in that it is only
    included if there are more than 8 rates. To support this we
    override the Serialize and GetSerializedSize methods of
    WifiInformationElement. */
  Buffer::Iterator Serialize (Buffer::Iterator start) const override;
  uint16_t GetSerializedSize () const override;

  void SetSupportedRates (SupportedRates *rates);


private:
  SupportedRates *m_supportedRates;
};


class SupportedRates : public WifiInformationElement
{
public:
  SupportedRates ();

  SupportedRates (const SupportedRates & rates);

  // Implementations of pure virtual methods of WifiInformationElement
  WifiInformationElementId ElementId () const;
  uint8_t GetInformationFieldSize () const;
  void SerializeInformationField (Buffer::Iterator start) const;
  uint8_t DeserializeInformationField (Buffer::Iterator start,
                                       uint8_t length);

  SupportedRates& operator= (const SupportedRates& rates);

  static const uint8_t MAX_SUPPORTED_RATES = 32;

  void AddSupportedRate (uint64_t bs);
  void SetBasicRate (uint64_t bs);
  void AddBssMembershipSelectorRate (uint64_t bs);
  bool IsSupportedRate (uint64_t bs) const;
  bool IsBasicRate (uint64_t bs) const;
  bool IsBssMembershipSelectorRate (uint64_t bs) const;
  uint8_t GetNRates (void) const;
  uint32_t GetRate (uint8_t i) const;

  friend class ExtendedSupportedRatesIE;
  ExtendedSupportedRatesIE extended; 


private:
  uint8_t m_nRates;                      
  uint8_t m_rates[MAX_SUPPORTED_RATES];  
};

std::ostream &operator << (std::ostream &os, const SupportedRates &rates);

} //namespace ns3

#endif /* SUPPORTED_RATES_H */