/* -*- 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 EVENT_IMPL_H

#define EVENT_IMPL_H

#include <stdint.h>

namespace ns3 {

public:

  EventImpl ();

  inline void Ref (void) const;

  inline void Unref (void) const;

  virtual ~EventImpl () = 0;

  void Invoke (void);

  void Cancel (void);

  bool IsCancelled (void);

protected:

  virtual void Notify (void) = 0;

private:

  friend class Event;

  bool m_cancel;

  mutable uint32_t m_count;

};

}; // namespace ns3

namespace ns3 {

void

EventImpl::Ref (void) const

{

  m_count++;

}

void

EventImpl::Unref (void) const

{

  m_count--;

  if (m_count == 0)

    {

      delete this;

    }

}

} // namespace ns3

#endif /* EVENT_IMPL_H */