/* -*- 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 SIMULATOR_IMPL_H
#define SIMULATOR_IMPL_H

#include "event-impl.h"
#include "event-id.h"
#include "nstime.h"
#include "object.h"
#include "object-factory.h"
#include "ptr.h"

/**
 * \file
 * \ingroup simulator
 * Declaration of class ns3::SimulatorImpl.
 */

namespace ns3 {

class Scheduler;

/**
 * \ingroup simulator
 *
 * The SimulatorImpl base class.
 *
 * \todo Define what the simulation or event context means.
 */
class SimulatorImpl : public Object
{
public:
  
  /**
   * Get the registered TypeId for this class.
   * \return The object TypeId.
   */
  static TypeId GetTypeId (void);

  /**  \copydoc Simulator::Destroy   */
  virtual void Destroy () = 0;
  /** \copydoc Simulator::IsFinished */
  virtual bool IsFinished (void) const = 0;
  /** \copydoc Simulator::Stop(void) */
  virtual void Stop (void) = 0;
  /** \copydoc Simulator::Stop(const Time&) */
  virtual void Stop (const Time &delay) = 0;
  /** \copydoc Simulator::Schedule(const Time&,const Ptr<EventImpl>&) */
  virtual EventId Schedule (const Time &delay, EventImpl *event) = 0;
  /** \copydoc Simulator::ScheduleWithContext(uint32_t,const Time&,EventImpl*) */
  virtual void ScheduleWithContext (uint32_t context, const Time &delay, EventImpl *event) = 0;
  /** \copydoc Simulator::ScheduleNow(const Ptr<EventImpl>&) */
  virtual EventId ScheduleNow (EventImpl *event) = 0;
  /** \copydoc Simulator::ScheduleDestroy(const Ptr<EventImpl>&) */
  virtual EventId ScheduleDestroy (EventImpl *event) = 0;
  /** \copydoc Simulator::Remove */
  virtual void Remove (const EventId &id) = 0;
  /** \copydoc Simulator::Cancel */
  virtual void Cancel (const EventId &id) = 0;
  /** \copydoc Simulator::IsExpired */
  virtual bool IsExpired (const EventId &id) const = 0;
  /** \copydoc Simulator::Run */
  virtual void Run (void) = 0;
  /** \copydoc Simulator::Now */
  virtual Time Now (void) const = 0;
  /** \copydoc Simulator::GetDelayLeft */
  virtual Time GetDelayLeft (const EventId &id) const = 0;
  /** \copydoc Simulator::GetMaximumSimulationTime */
  virtual Time GetMaximumSimulationTime (void) const = 0;
  /**
   * Set the Scheduler to be used to manage the event list.
   *
   * \param [in] schedulerFactory A new event scheduler factory.
   *
   * The event scheduler can be set at any time: the events scheduled
   * in the previous scheduler will be transfered to the new scheduler
   * before we start to use it.
   */
  virtual void SetScheduler (ObjectFactory schedulerFactory) = 0;
  /** \copydoc Simulator::GetSystemId */
  virtual uint32_t GetSystemId () const = 0; 
  /** \copydoc Simulator::GetContext */
  virtual uint32_t GetContext (void) const = 0;
};

} // namespace ns3

#endif /* SIMULATOR_IMPL_H */