Network device transmission queue interface. More...

#include "net-device-queue-interface.h"

Inheritance diagram for ns3::NetDeviceQueueInterface:

Collaboration diagram for ns3::NetDeviceQueueInterface:

Public Types
typedef std::function< std::size_t(Ptr< QueueItem >)>	SelectQueueCallback
	Callback invoked to determine the tx queue selected for a given packet.

Public Member Functions
	NetDeviceQueueInterface ()
	Constructor.

	~NetDeviceQueueInterface () override

std::size_t	GetNTxQueues () const
	Get the number of device transmission queues.

SelectQueueCallback	GetSelectQueueCallback () const
	Get the select queue callback.

Ptr< NetDeviceQueue >	GetTxQueue (std::size_t i) const
	Get the i-th transmission queue of the device.

void	SetNTxQueues (std::size_t numTxQueues)
	Set the number of device transmission queues to create.

void	SetSelectQueueCallback (SelectQueueCallback cb)
	Set the select queue callback.

void	SetTxQueuesType (TypeId type)
	Set the type of device transmission queues to create.

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 type ID.

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.

Protected Member Functions
void	DoDispose () override
	Dispose of the object.

void	NotifyNewAggregate () override
	Notify that an object was aggregated.

Protected Member Functions inherited from ns3::Object
	Object (const Object &o)
	Copy an Object.

virtual void	DoInitialize ()
	Initialize() implementation.

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.

Private Attributes
SelectQueueCallback	m_selectQueueCallback
	Select queue callback.

ObjectFactory	m_txQueues
	Device transmission queues TypeId.

std::vector< Ptr< NetDeviceQueue > >	m_txQueuesVector
	Device transmission queues.

Additional Inherited Members
Related Symbols inherited from ns3::ObjectBase
static TypeId	GetObjectIid ()
	Ensure the TypeId for ObjectBase gets fully configured to anchor the inheritance tree properly.

Detailed Description

Network device transmission queue interface.

This interface is used by the traffic control layer and by the aggregated device to access the transmission queues of the device. Additionally, through this interface, traffic control aware netdevices can:

set the number of transmission queues
set the method used (by upper layers) to determine the transmission queue in which the netdevice would enqueue a given packet NetDevice helpers create this interface and aggregate it to the device.

Definition at line 219 of file net-device-queue-interface.h.

Member Typedef Documentation

◆ SelectQueueCallback

typedef std::function<std::size_t(Ptr<QueueItem>)> ns3::NetDeviceQueueInterface::SelectQueueCallback

Callback invoked to determine the tx queue selected for a given packet.

Definition at line 271 of file net-device-queue-interface.h.

Constructor & Destructor Documentation

◆ NetDeviceQueueInterface()

ns3::NetDeviceQueueInterface::NetDeviceQueueInterface ( )

Constructor.

Definition at line 189 of file net-device-queue-interface.cc.

References m_selectQueueCallback, and NS_LOG_FUNCTION.

◆ ~NetDeviceQueueInterface()

ns3::NetDeviceQueueInterface::~NetDeviceQueueInterface ( )

override

Definition at line 197 of file net-device-queue-interface.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ DoDispose()

void ns3::NetDeviceQueueInterface::DoDispose ( )

overrideprotectedvirtual

Dispose of the object.

Reimplemented from ns3::Object.

Definition at line 216 of file net-device-queue-interface.cc.

References ns3::Object::DoDispose(), m_txQueuesVector, and NS_LOG_FUNCTION.

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◆ GetNTxQueues()

std::size_t ns3::NetDeviceQueueInterface::GetNTxQueues ( ) const

Get the number of device transmission queues.

Returns: the number of device transmission queues.

Definition at line 210 of file net-device-queue-interface.cc.

References m_txQueuesVector.

Referenced by GetTypeId().

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◆ GetSelectQueueCallback()

NetDeviceQueueInterface::SelectQueueCallback ns3::NetDeviceQueueInterface::GetSelectQueueCallback ( ) const

Get the select queue callback.

Returns: the select queue callback.

Called by the traffic control layer to get the select queue callback set by a multi-queue device.

Definition at line 272 of file net-device-queue-interface.cc.

References m_selectQueueCallback.

◆ GetTxQueue()

Ptr< NetDeviceQueue > ns3::NetDeviceQueueInterface::GetTxQueue ( std::size_t i ) const

Get the i-th transmission queue of the device.

Parameters

i	the index of the requested queue.

Returns: the i-th transmission queue of the device.

The index of the first transmission queue is zero.

Definition at line 203 of file net-device-queue-interface.cc.

References m_txQueuesVector, and NS_ASSERT.

◆ GetTypeId()

TypeId ns3::NetDeviceQueueInterface::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 166 of file net-device-queue-interface.cc.

References ns3::TypeId::ATTR_CONSTRUCT, ns3::TypeId::ATTR_GET, GetNTxQueues(), ns3::NetDeviceQueue::GetTypeId(), ns3::MakeTypeIdAccessor(), ns3::MakeTypeIdChecker(), ns3::MakeUintegerAccessor(), ns3::MakeUintegerChecker(), SetNTxQueues(), ns3::TypeId::SetParent(), and SetTxQueuesType().

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◆ NotifyNewAggregate()

void ns3::NetDeviceQueueInterface::NotifyNewAggregate ( )

overrideprotectedvirtual

Notify that an object was aggregated.

Reimplemented from ns3::Object.

Definition at line 225 of file net-device-queue-interface.cc.

References m_txQueuesVector, ns3::Object::NotifyNewAggregate(), and NS_LOG_FUNCTION.

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◆ SetNTxQueues()

void ns3::NetDeviceQueueInterface::SetNTxQueues ( std::size_t numTxQueues )

Set the number of device transmission queues to create.

Parameters

numTxQueues number of device transmission queues to create.

This method is called when the NTxQueues attribute is set to create the corresponding number of device transmission queues. It cannot be called again afterwards.

Definition at line 250 of file net-device-queue-interface.cc.

References ns3::ObjectFactory::Create(), ns3::Object::GetObject(), m_txQueues, m_txQueuesVector, NS_ABORT_MSG_IF, NS_ASSERT, and NS_LOG_FUNCTION.

Referenced by GetTypeId().

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◆ SetSelectQueueCallback()

void ns3::NetDeviceQueueInterface::SetSelectQueueCallback ( SelectQueueCallback cb )

Set the select queue callback.

Parameters

cb	the callback to set.

This method is called to set the select queue callback, i.e., the method used to select a device transmission queue for a given packet.

Definition at line 266 of file net-device-queue-interface.cc.

References m_selectQueueCallback.

◆ SetTxQueuesType()

void ns3::NetDeviceQueueInterface::SetTxQueuesType ( TypeId type )

Set the type of device transmission queues to create.

Parameters

type	type of device transmission queues to create.

This method is called when the TxQueuesType attribute is set to create the corresponding type of device transmission queues. It cannot be called again afterwards.

Definition at line 238 of file net-device-queue-interface.cc.

References m_txQueues, m_txQueuesVector, NS_ABORT_MSG_IF, NS_LOG_FUNCTION, ns3::Object::ObjectFactory, and ns3::ObjectFactory::SetTypeId().

Referenced by GetTypeId().

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