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

/*

 * Copyright (c) 2005,2006 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 CONSTANT_RATE_WIFI_MANAGER_H

#define CONSTANT_RATE_WIFI_MANAGER_H

#include <stdint.h>

#include "wifi-remote-station-manager.h"

namespace ns3 {

/**

 * \brief use constant rates for data and control transmissions

 *

 * This class uses always the same transmission rate for every

 * packet sent.

 */

class ConstantRateWifiManager : public WifiRemoteStationManager

{

public:

  static TypeId GetTypeId (void);

  ConstantRateWifiManager ();

  virtual ~ConstantRateWifiManager ();

  WifiMode GetDataMode (void) const;

  WifiMode GetCtlMode (void) const;

private:

  virtual class WifiRemoteStation *CreateStation (void);

  WifiMode m_dataMode;

  WifiMode m_ctlMode;

};

class ConstantRateWifiRemoteStation : public WifiRemoteStation

{

public:

  ConstantRateWifiRemoteStation (Ptr<ConstantRateWifiManager> stations);

  virtual ~ConstantRateWifiRemoteStation ();

protected:

  virtual void DoReportRxOk (double rxSnr, WifiMode txMode);

  virtual void DoReportRtsFailed (void);

  virtual void DoReportDataFailed (void);

  virtual void DoReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr);

  virtual void DoReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr);

  virtual void DoReportFinalRtsFailed (void);

  virtual void DoReportFinalDataFailed (void);

private:

  virtual Ptr<WifiRemoteStationManager> GetManager (void) const;

  virtual WifiMode DoGetDataMode (uint32_t size);

  virtual WifiMode DoGetRtsMode (void);

  Ptr<ConstantRateWifiManager> m_manager;

};

} // namespace ns3

#endif /* CONSTANT_RATE_WIFI_MANAGER_H */