The SimulatorImpl base class. More...
#include "simulator-impl.h"
Public Member Functions | |
virtual void | Cancel (const EventId &id)=0 |
Set the cancel bit on this event: the event's associated function will not be invoked when it expires. | |
virtual void | Destroy ()=0 |
Execute the events scheduled with ScheduleDestroy(). | |
virtual uint32_t | GetContext () const =0 |
Get the current simulation context. | |
virtual Time | GetDelayLeft (const EventId &id) const =0 |
Get the remaining time until this event will execute. | |
virtual uint64_t | GetEventCount () const =0 |
Get the number of events executed. | |
virtual Time | GetMaximumSimulationTime () const =0 |
Get the maximum representable simulation time. | |
virtual uint32_t | GetSystemId () const =0 |
Get the system id of this simulator. | |
virtual bool | IsExpired (const EventId &id) const =0 |
Check if an event has already run or been cancelled. | |
virtual bool | IsFinished () const =0 |
Check if the simulation should finish. | |
virtual Time | Now () const =0 |
Return the current simulation virtual time. | |
virtual void | PreEventHook (const EventId &id) |
Hook called before processing each event. | |
virtual void | Remove (const EventId &id)=0 |
Remove an event from the event list. | |
virtual void | Run ()=0 |
Run the simulation. | |
virtual EventId | Schedule (const Time &delay, EventImpl *event)=0 |
Schedule a future event execution (in the same context). | |
virtual EventId | ScheduleDestroy (EventImpl *event)=0 |
Schedule an event to run at the end of the simulation, after the Stop() time or condition has been reached. | |
virtual EventId | ScheduleNow (EventImpl *event)=0 |
Schedule an event to run at the current virtual time. | |
virtual void | ScheduleWithContext (uint32_t context, const Time &delay, EventImpl *event)=0 |
Schedule a future event execution (in a different context). | |
virtual void | SetScheduler (ObjectFactory schedulerFactory)=0 |
Set the Scheduler to be used to manage the event list. | |
virtual void | Stop ()=0 |
Tell the Simulator the calling event should be the last one executed. | |
virtual EventId | Stop (const Time &delay)=0 |
Schedule the time delay until the Simulator should stop. | |
Public Member Functions inherited from ns3::Object | |
Object () | |
Constructor. | |
~Object () override | |
Destructor. | |
void | AggregateObject (Ptr< Object > other) |
Aggregate two Objects together. | |
void | Dispose () |
Dispose of this Object. | |
AggregateIterator | GetAggregateIterator () const |
Get an iterator to the Objects aggregated to this one. | |
TypeId | GetInstanceTypeId () const override |
Get the most derived TypeId for this Object. | |
template<typename T > | |
Ptr< T > | GetObject () const |
Get a pointer to the requested aggregated Object. | |
template<> | |
Ptr< Object > | GetObject () const |
Specialization of () for objects of type ns3::Object. | |
template<typename T > | |
Ptr< T > | GetObject (TypeId tid) const |
Get a pointer to the requested aggregated Object by TypeId. | |
template<> | |
Ptr< Object > | GetObject (TypeId tid) const |
Specialization of (TypeId tid) for objects of type ns3::Object. | |
void | Initialize () |
Invoke DoInitialize on all Objects aggregated to this one. | |
bool | IsInitialized () const |
Check if the object has been initialized. | |
void | UnidirectionalAggregateObject (Ptr< Object > other) |
Aggregate an Object to another Object. | |
Public Member Functions inherited from ns3::SimpleRefCount< Object, ObjectBase, ObjectDeleter > | |
SimpleRefCount () | |
Default constructor. | |
SimpleRefCount (const SimpleRefCount &o) | |
Copy constructor. | |
uint32_t | GetReferenceCount () const |
Get the reference count of the object. | |
SimpleRefCount & | operator= (const SimpleRefCount &o) |
Assignment operator. | |
void | Ref () const |
Increment the reference count. | |
void | Unref () const |
Decrement the reference count. | |
Public Member Functions inherited from ns3::ObjectBase | |
virtual | ~ObjectBase () |
Virtual destructor. | |
void | GetAttribute (std::string name, AttributeValue &value, bool permissive=false) const |
Get the value of an attribute, raising fatal errors if unsuccessful. | |
bool | GetAttributeFailSafe (std::string name, AttributeValue &value) const |
Get the value of an attribute without raising errors. | |
void | SetAttribute (std::string name, const AttributeValue &value) |
Set a single attribute, raising fatal errors if unsuccessful. | |
bool | SetAttributeFailSafe (std::string name, const AttributeValue &value) |
Set a single attribute without raising errors. | |
bool | TraceConnect (std::string name, std::string context, const CallbackBase &cb) |
Connect a TraceSource to a Callback with a context. | |
bool | TraceConnectWithoutContext (std::string name, const CallbackBase &cb) |
Connect a TraceSource to a Callback without a context. | |
bool | TraceDisconnect (std::string name, std::string context, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected with a context. | |
bool | TraceDisconnectWithoutContext (std::string name, const CallbackBase &cb) |
Disconnect from a TraceSource a Callback previously connected without a context. | |
Static Public Member Functions | |
static TypeId | GetTypeId () |
Get the registered TypeId for this class. | |
Static Public Member Functions inherited from ns3::Object | |
static TypeId | GetTypeId () |
Register this type. | |
Static Public Member Functions inherited from ns3::ObjectBase | |
static TypeId | GetTypeId () |
Get the type ID. | |
Additional Inherited Members | |
Protected Member Functions inherited from ns3::Object | |
Object (const Object &o) | |
Copy an Object. | |
virtual void | DoDispose () |
Destructor implementation. | |
virtual void | DoInitialize () |
Initialize() implementation. | |
virtual void | NotifyNewAggregate () |
Notify all Objects aggregated to this one of a new Object being aggregated. | |
Protected Member Functions inherited from ns3::ObjectBase | |
void | ConstructSelf (const AttributeConstructionList &attributes) |
Complete construction of ObjectBase; invoked by derived classes. | |
virtual void | NotifyConstructionCompleted () |
Notifier called once the ObjectBase is fully constructed. | |
Related Symbols inherited from ns3::ObjectBase | |
static TypeId | GetObjectIid () |
Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly. | |
The SimulatorImpl base class.
Introspection did not find any typical Config paths.
No Attributes are defined for this type.
No TraceSources are defined for this type.
Group: Core
Size of this type is 56 bytes (on a 64-bit architecture).
Definition at line 37 of file simulator-impl.h.
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pure virtual |
Set the cancel bit on this event: the event's associated function will not be invoked when it expires.
This method has the same visible effect as the ns3::Simulator::Remove method but its algorithmic complexity is much lower: it has O(1) complexity. This method has the exact same semantics as ns3::EventId::Cancel. Note that it is not possible to cancel events which were scheduled for the "destroy" time. Doing so will result in a program error (crash).
[in] | id | the event to cancel |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::Cancel().
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pure virtual |
Execute the events scheduled with ScheduleDestroy().
This method is typically invoked at the end of a simulation to avoid false-positive reports by a leak checker. After this method has been invoked, it is actually possible to restart a new simulation with a set of calls to Simulator::Run, Simulator::Schedule and Simulator::ScheduleWithContext.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::VisualSimulatorImpl::Destroy().
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pure virtual |
Get the current simulation context.
The simulation context is the ns-3 notion of a Logical Process. Events in a single context should only modify state associated with that context. Events for objects in other contexts should be scheduled with ScheduleWithContext() to track the context switches. In other words, events in different contexts should be mutually thread safe, by not modify overlapping model state.
In circumstances where the context can't be determined, such as during object initialization, the enum
value NO_CONTEXT
should be used.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::GetContext().
Get the remaining time until this event will execute.
[in] | id | The event id to analyse. |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::GetDelayLeft().
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pure virtual |
Get the number of events executed.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::GetEventCount().
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pure virtual |
Get the maximum representable simulation time.
The returned value will always be bigger than or equal to Simulator::Now.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::GetMaximumSimulationTime().
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pure virtual |
Get the system id of this simulator.
The system id is the identifier for this simulator instance in a distributed simulation. For MPI this is the MPI rank.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::GetSystemId().
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static |
Get the registered TypeId for this class.
Definition at line 26 of file simulator-impl.cc.
References ns3::TypeId::SetParent().
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pure virtual |
Check if an event has already run or been cancelled.
This method has O(1) complexity. Note that it is not possible to test for the expiration of events which were scheduled for the "destroy" time. Doing so will result in a program error (crash). An event is said to "expire" when it starts being executed, which means that if the code executed by the event calls this function, it will get true.
[in] | id | The event to test for expiration. |
true
if the event has expired, false otherwise. Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::IsExpired().
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pure virtual |
Check if the simulation should finish.
Reasons to finish are because there are no more events lefts to be scheduled, or if simulation time has already reached the "stop time" (see Simulator::Stop()).
true
if no more events or stop time reached. Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::IsFinished().
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pure virtual |
Return the current simulation virtual time.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::Now().
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inlinevirtual |
Hook called before processing each event.
[in] | id | The event about to be processed. |
Definition at line 98 of file simulator-impl.h.
Referenced by ns3::DefaultSimulatorImpl::ProcessOneEvent(), ns3::DistributedSimulatorImpl::ProcessOneEvent(), ns3::NullMessageSimulatorImpl::ProcessOneEvent(), and ns3::RealtimeSimulatorImpl::ProcessOneEvent().
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pure virtual |
Remove an event from the event list.
This method has the same visible effect as the ns3::EventId::Cancel method but its algorithmic complexity is much higher: it has often O(log(n)) complexity, sometimes O(n), sometimes worse. Note that it is not possible to remove events which were scheduled for the "destroy" time. Doing so will result in a program error (crash).
[in] | id | The event to remove from the list of scheduled events. |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::Remove().
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pure virtual |
Run the simulation.
The simulation will run until one of:
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::Run().
Schedule a future event execution (in the same context).
[in] | delay | Delay until the event expires. |
[in] | event | The event to schedule. |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::DoSchedule().
Schedule an event to run at the end of the simulation, after the Stop() time or condition has been reached.
[in] | event | The event to schedule. |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::DoScheduleDestroy().
Schedule an event to run at the current virtual time.
[in] | event | The event to schedule. |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::DoScheduleNow().
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pure virtual |
Schedule a future event execution (in a different context).
This method is thread-safe: it can be called from any thread.
[in] | delay | Delay until the event expires. |
[in] | context | Event context. |
[in] | event | The event to schedule. |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::ScheduleWithContext().
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pure virtual |
Set the Scheduler to be used to manage the event list.
[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 transferred to the new scheduler before we start to use it.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::SetScheduler().
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pure virtual |
Tell the Simulator the calling event should be the last one executed.
If a running event invokes this method, it will be the last event executed by the Simulator::Run method before returning to the caller.
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.
Referenced by ns3::Simulator::Stop(), and ns3::Simulator::Stop().
Schedule the time delay until the Simulator should stop.
Force the Simulator::Run method to return to the caller when the expiration time of the next event to be processed is greater than or equal to the stop time. The stop time is relative to the current simulation time.
[in] | delay | The stop time, relative to the current time. |
Implemented in ns3::DefaultSimulatorImpl, ns3::DistributedSimulatorImpl, ns3::NullMessageSimulatorImpl, ns3::RealtimeSimulatorImpl, and ns3::VisualSimulatorImpl.