event-id.h

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/* -*- 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 EVENT_ID_H
#define EVENT_ID_H
 
#include <stdint.h>
#include "ptr.h"
#include "event-impl.h"
 
namespace ns3 {
 
class EventImpl;
 
class EventId
{
public:
 
  enum UID 
    {
      INVALID = 0,
      NOW = 1,
      DESTROY = 2,
      RESERVED = 3,
      VALID = 4
    };
 
  EventId ();
  EventId (const Ptr<EventImpl> &impl, uint64_t ts, uint32_t context, uint32_t uid);
  void Cancel (void);
  void Remove (void);
  bool IsExpired (void) const;
  bool IsRunning (void) const;
 
public:
  EventImpl * PeekEventImpl (void) const;
  uint64_t GetTs (void) const;
  uint32_t GetContext (void) const;
  uint32_t GetUid (void) const;
  friend bool operator == (const EventId &a, const EventId &b);
  friend bool operator != (const EventId &a, const EventId &b);
  friend bool operator <  (const EventId &a, const EventId &b);
 
private:
  Ptr<EventImpl> m_eventImpl;  
  uint64_t m_ts;               
  uint32_t m_context;          
  uint32_t m_uid;              
};
 
/*************************************************
 **  Inline implementations
 ************************************************/
 
inline
bool
operator == (const EventId &a, const EventId &b)
{
  return
    a.m_uid == b.m_uid
    && a.m_context == b.m_context
    && a.m_ts == b.m_ts
    && a.m_eventImpl == b.m_eventImpl;
}
 
inline
bool
operator != (const EventId &a, const EventId &b)
{
  return !(a == b);
}
 
inline
bool
operator <  (const EventId &a, const EventId &b)
{
  return (a.GetTs () < b.GetTs ());
}
 
} // namespace ns3
 
#endif /* EVENT_ID_H */