144 lines
4.2 KiB
C++
144 lines
4.2 KiB
C++
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2005,2006 INRIA
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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*/
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#ifndef DEFAULT_SIMULATOR_IMPL_H
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#define DEFAULT_SIMULATOR_IMPL_H
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#include "simulator-impl.h"
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#include "scheduler.h"
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#include "event-impl.h"
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#include "system-thread.h"
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#include "system-mutex.h"
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#include "ptr.h"
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#include <list>
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/**
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* \file
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* \ingroup simulator
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* ns3::DefaultSimulatorImpl declaration.
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*/
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namespace ns3 {
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/**
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* \ingroup simulator
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*
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* The default single process simulator implementation.
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*/
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class DefaultSimulatorImpl : public SimulatorImpl
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{
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public:
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/**
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* Register this type.
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* \return The object TypeId.
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*/
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static TypeId GetTypeId (void);
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/** Constructor. */
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DefaultSimulatorImpl ();
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/** Destructor. */
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~DefaultSimulatorImpl ();
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// Inherited
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virtual void Destroy ();
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virtual bool IsFinished (void) const;
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virtual void Stop (void);
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virtual void Stop (const Time &delay);
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virtual EventId Schedule (const Time &delay, EventImpl *event);
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virtual void ScheduleWithContext (uint32_t context, const Time &delay, EventImpl *event);
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virtual EventId ScheduleNow (EventImpl *event);
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virtual EventId ScheduleDestroy (EventImpl *event);
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virtual void Remove (const EventId &id);
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virtual void Cancel (const EventId &id);
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virtual bool IsExpired (const EventId &id) const;
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virtual void Run (void);
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virtual Time Now (void) const;
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virtual Time GetDelayLeft (const EventId &id) const;
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virtual Time GetMaximumSimulationTime (void) const;
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virtual void SetScheduler (ObjectFactory schedulerFactory);
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virtual uint32_t GetSystemId (void) const;
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virtual uint32_t GetContext (void) const;
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virtual uint64_t GetEventCount (void) const;
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private:
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virtual void DoDispose (void);
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/** Process the next event. */
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void ProcessOneEvent (void);
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/** Move events from a different context into the main event queue. */
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void ProcessEventsWithContext (void);
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/** Wrap an event with its execution context. */
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struct EventWithContext
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{
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/** The event context. */
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uint32_t context;
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/** Event timestamp. */
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uint64_t timestamp;
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/** The event implementation. */
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EventImpl *event;
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};
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/** Container type for the events from a different context. */
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typedef std::list<struct EventWithContext> EventsWithContext;
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/** The container of events from a different context. */
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EventsWithContext m_eventsWithContext;
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/**
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* Flag \c true if all events with context have been moved to the
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* primary event queue.
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*/
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bool m_eventsWithContextEmpty;
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/** Mutex to control access to the list of events with context. */
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SystemMutex m_eventsWithContextMutex;
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/** Container type for the events to run at Simulator::Destroy() */
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typedef std::list<EventId> DestroyEvents;
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/** The container of events to run at Destroy. */
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DestroyEvents m_destroyEvents;
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/** Flag calling for the end of the simulation. */
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bool m_stop;
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/** The event priority queue. */
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Ptr<Scheduler> m_events;
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/** Next event unique id. */
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uint32_t m_uid;
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/** Unique id of the current event. */
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uint32_t m_currentUid;
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/** Timestamp of the current event. */
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uint64_t m_currentTs;
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/** Execution context of the current event. */
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uint32_t m_currentContext;
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/** The event count. */
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uint64_t m_eventCount;
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/**
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* Number of events that have been inserted but not yet scheduled,
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* not counting the Destroy events; this is used for validation
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*/
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int m_unscheduledEvents;
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/** Main execution thread. */
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SystemThread::ThreadId m_main;
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};
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} // namespace ns3
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#endif /* DEFAULT_SIMULATOR_IMPL_H */
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