default-simulator-impl.h

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/* -*- 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 DEFAULT_SIMULATOR_IMPL_H
#define DEFAULT_SIMULATOR_IMPL_H
 
#include "simulator-impl.h"
#include "system-thread.h"
#include "system-mutex.h"
 
#include <list>
 
namespace ns3 {
 
// Forward
class Scheduler;
 
class DefaultSimulatorImpl : public SimulatorImpl
{
public:
  static TypeId GetTypeId (void);
 
  DefaultSimulatorImpl ();
  ~DefaultSimulatorImpl ();
 
  // Inherited
  virtual void Destroy ();
  virtual bool IsFinished (void) const;
  virtual void Stop (void);
  virtual void Stop (const Time &delay);
  virtual EventId Schedule (const Time &delay, EventImpl *event);
  virtual void ScheduleWithContext (uint32_t context, const Time &delay, EventImpl *event);
  virtual EventId ScheduleNow (EventImpl *event);
  virtual EventId ScheduleDestroy (EventImpl *event);
  virtual void Remove (const EventId &id);
  virtual void Cancel (const EventId &id);
  virtual bool IsExpired (const EventId &id) const;
  virtual void Run (void);
  virtual Time Now (void) const;
  virtual Time GetDelayLeft (const EventId &id) const;
  virtual Time GetMaximumSimulationTime (void) const;
  virtual void SetScheduler (ObjectFactory schedulerFactory);
  virtual uint32_t GetSystemId (void) const;
  virtual uint32_t GetContext (void) const;
  virtual uint64_t GetEventCount (void) const;
 
private:
  virtual void DoDispose (void);
 
  void ProcessOneEvent (void);
  void ProcessEventsWithContext (void);
 
  struct EventWithContext
  {
    uint32_t context;
    uint64_t timestamp;
    EventImpl *event;
  };
  typedef std::list<struct EventWithContext> EventsWithContext;
  EventsWithContext m_eventsWithContext;
  bool m_eventsWithContextEmpty;
  SystemMutex m_eventsWithContextMutex;
 
  typedef std::list<EventId> DestroyEvents;
  DestroyEvents m_destroyEvents;
  bool m_stop;
  Ptr<Scheduler> m_events;
 
  uint32_t m_uid;
  uint32_t m_currentUid;
  uint64_t m_currentTs;
  uint32_t m_currentContext;
  uint64_t m_eventCount;
  int m_unscheduledEvents;
 
  SystemThread::ThreadId m_main;
};
 
} // namespace ns3
 
#endif /* DEFAULT_SIMULATOR_IMPL_H */