default-channel-scheduler.h

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * 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: Junling Bu <linlinjavaer@gmail.com>
 */
#ifndef DEFAULT_CHANNEL_SCHEDULER_H
#define DEFAULT_CHANNEL_SCHEDULER_H

#include "wave-net-device.h"
namespace ns3 {
class WaveNetDevice;

class DefaultChannelScheduler : public ChannelScheduler
{
public:
  static TypeId GetTypeId (void);
  DefaultChannelScheduler ();
  virtual ~DefaultChannelScheduler ();

  virtual void SetWaveNetDevice (Ptr<WaveNetDevice> device);
  virtual enum ChannelAccess GetAssignedAccessType (uint32_t channelNumber) const;

  void NotifyCchSlotStart (Time duration);
  void NotifySchSlotStart (Time duration);
  void NotifyGuardSlotStart (Time duration, bool cchi);
private:
  virtual void DoInitialize (void);
  virtual void DoDispose (void);
  virtual bool AssignAlternatingAccess (uint32_t channelNumber, bool immediate);
  virtual bool AssignContinuousAccess (uint32_t channelNumber, bool immediate);
  virtual bool AssignExtendedAccess (uint32_t channelNumber, uint32_t extends, bool immediate);
  virtual bool AssignDefaultCchAccess (void);
  virtual bool ReleaseAccess (uint32_t channelNumber);
  void SwitchToNextChannel (uint32_t curChannelNumber, uint32_t nextChannelNumber);

  Ptr<ChannelManager> m_manager;
  Ptr<ChannelCoordinator> m_coordinator;
  Ptr<WifiPhy> m_phy;

  uint32_t m_channelNumber;
  uint32_t m_extend;
  EventId m_extendEvent;
  enum ChannelAccess m_channelAccess;

  EventId m_waitEvent;
  uint32_t m_waitChannelNumber;
  uint32_t m_waitExtend;

  Ptr<ChannelCoordinationListener> m_coordinationListener;
};

}
#endif /* DEFAULT_CHANNEL_SCHEDULER_H */