Linux pfifo_fast is the default priority queue enabled on Linux systems. More...

#include "qkd-kms-queue-logic.h"

Inheritance diagram for ns3::QKDKMSQueueLogic:

Collaboration diagram for ns3::QKDKMSQueueLogic:

Classes
struct	QKDKMSQueueEntry

Public Member Functions
	QKDKMSQueueLogic ()
	QKDKMSQueueLogic constructor.

	~QKDKMSQueueLogic () override

QKDKMSQueueLogic::QKDKMSQueueEntry	Dequeue ()

bool	Enqueue (QKDKMSQueueEntry item)

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.

Private Attributes
uint32_t	m_maxSize

TracedValue< uint32_t >	m_nPackets
	Number of packets in the queue.

uint32_t	m_numberOfQueues

std::vector< std::vector< QKDKMSQueueEntry > >	m_queues

TracedCallback< const HTTPMessage >	m_traceDequeue
	Traced callback: fired when a packet is dequeued.

TracedCallback< const HTTPMessage >	m_traceDroped
	Traced callback: fired when a packet is dropped.

TracedCallback< const HTTPMessage >	m_traceEnqueue
	Traced callback: fired when a packet is enqueued.

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.

Detailed Description

Linux pfifo_fast is the default priority queue enabled on Linux systems.

Introspection did not find any typical Config paths.

Packets are enqueued in three FIFO droptail queues according to three priority bands based on the packet priority.

The system behaves similar to three ns3::DropTail queues operating together, in which packets from higher priority bands are always dequeued before a packet from a lower priority band is dequeued.

The queue disc capacity, i.e., the maximum number of packets that can be enqueued in the queue disc, is set through the limit attribute, which plays the same role as txqueuelen in Linux. If no internal queue is provided, three DropTail queues having each a capacity equal to limit are created by default. User is allowed to provide queues, but they must be three, operate in packet mode and each have a capacity not less than limit.

Note: Additional waiting queues are installed between the L3 and ISO/OSI layer to avoid conflicts in decision making which could lead to inaccurate routing. Experimental testing and usage!

Attributes

MaxSize: The maximum number of packets accepted by this queue disc.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 10
- Flags: constructwriteread
- Support level: SUPPORTED
NumberOfQueues: The number of priority queues used.
- Set with class: ns3::UintegerValue
- Underlying type: uint32_t 0:4294967295
- Initial value: 3
- Flags: constructwriteread
- Support level: SUPPORTED

TraceSources

DequeueKMS: Dequeue a packet from the queue disc
- Callback signature: ns3::QueueItem::TracedCallback
- Support level: SUPPORTED
DropKMS: Drop a packet from the queue disc
- Callback signature: ns3::QueueItem::TracedCallback
- Support level: SUPPORTED
EnqueueKMS: Enqueue a packet in the queue disc
- Callback signature: ns3::QueueItem::TracedCallback
- Support level: SUPPORTED
PacketsInQueue: Number of packets currently stored in the queue disc
- Callback signature: ns3::TracedValueCallback::Uint32
- Support level: SUPPORTED

Size of this type is 192 bytes (on a 64-bit architecture).

Definition at line 48 of file qkd-kms-queue-logic.h.

Constructor & Destructor Documentation

◆ QKDKMSQueueLogic()

ns3::QKDKMSQueueLogic::QKDKMSQueueLogic ( )

QKDKMSQueueLogic constructor.

Creates a queue with a depth of 1000 packets per band by default

Definition at line 53 of file qkd-kms-queue-logic.cc.

References ns3::Create(), m_numberOfQueues, m_queues, and NS_LOG_FUNCTION.

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◆ ~QKDKMSQueueLogic()

ns3::QKDKMSQueueLogic::~QKDKMSQueueLogic ( )

override

Definition at line 63 of file qkd-kms-queue-logic.cc.

References NS_LOG_FUNCTION.

Member Function Documentation

◆ Dequeue()

QKDKMSQueueLogic::QKDKMSQueueEntry ns3::QKDKMSQueueLogic::Dequeue ( )

Definition at line 112 of file qkd-kms-queue-logic.cc.

References ns3::Create(), m_maxSize, m_nPackets, m_numberOfQueues, m_queues, m_traceDequeue, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ Enqueue()

bool ns3::QKDKMSQueueLogic::Enqueue ( QKDKMSQueueEntry item )

Definition at line 69 of file qkd-kms-queue-logic.cc.

References ns3::Create(), m_maxSize, m_nPackets, m_numberOfQueues, m_queues, m_traceDroped, m_traceEnqueue, NS_FATAL_ERROR, NS_LOG_FUNCTION, and NS_LOG_LOGIC.

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◆ GetTypeId()

TypeId ns3::QKDKMSQueueLogic::GetTypeId ( )

static

Get the type ID.

Returns: the object TypeId

Definition at line 24 of file qkd-kms-queue-logic.cc.

References ns3::Create(), m_maxSize, m_nPackets, m_numberOfQueues, m_traceDequeue, m_traceDroped, m_traceEnqueue, ns3::MakeTraceSourceAccessor(), ns3::MakeUintegerAccessor(), and ns3::TypeId::SetParent().

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Member Data Documentation

◆ m_maxSize

uint32_t ns3::QKDKMSQueueLogic::m_maxSize

private

Definition at line 87 of file qkd-kms-queue-logic.h.

Referenced by Dequeue(), Enqueue(), and GetTypeId().

◆ m_nPackets

TracedValue<uint32_t> ns3::QKDKMSQueueLogic::m_nPackets

private

Number of packets in the queue.

Definition at line 85 of file qkd-kms-queue-logic.h.

Referenced by Dequeue(), Enqueue(), and GetTypeId().

◆ m_numberOfQueues

uint32_t ns3::QKDKMSQueueLogic::m_numberOfQueues

private

Definition at line 89 of file qkd-kms-queue-logic.h.

Referenced by QKDKMSQueueLogic(), Dequeue(), Enqueue(), and GetTypeId().

◆ m_queues

std::vector<std::vector<QKDKMSQueueEntry> > ns3::QKDKMSQueueLogic::m_queues

private

Definition at line 91 of file qkd-kms-queue-logic.h.

Referenced by QKDKMSQueueLogic(), Dequeue(), and Enqueue().

◆ m_traceDequeue

TracedCallback<const HTTPMessage > ns3::QKDKMSQueueLogic::m_traceDequeue

private

Traced callback: fired when a packet is dequeued.

Definition at line 81 of file qkd-kms-queue-logic.h.

Referenced by Dequeue(), and GetTypeId().

◆ m_traceDroped

TracedCallback<const HTTPMessage > ns3::QKDKMSQueueLogic::m_traceDroped

private

Traced callback: fired when a packet is dropped.

Definition at line 83 of file qkd-kms-queue-logic.h.

Referenced by Enqueue(), and GetTypeId().

◆ m_traceEnqueue

TracedCallback<const HTTPMessage > ns3::QKDKMSQueueLogic::m_traceEnqueue

private

Traced callback: fired when a packet is enqueued.

Definition at line 79 of file qkd-kms-queue-logic.h.

Referenced by Enqueue(), and GetTypeId().

The documentation for this class was generated from the following files:

src/applications/model/qkd-kms-queue-logic.h
src/applications/model/qkd-kms-queue-logic.cc

Classes

Public Member Functions

Static Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Attributes

TraceSources

Constructor & Destructor Documentation

◆ QKDKMSQueueLogic()

◆ ~QKDKMSQueueLogic()

Member Function Documentation

◆ Dequeue()

◆ Enqueue()

◆ GetTypeId()

Member Data Documentation

◆ m_maxSize

◆ m_nPackets

◆ m_numberOfQueues

◆ m_queues

◆ m_traceDequeue

◆ m_traceDroped

◆ m_traceEnqueue