NDN application for sending out Interest packets. More...

#include <ndn-consumer.hpp>

Inheritance diagram for ns3::ndn::Consumer:

[legend]

Collaboration diagram for ns3::ndn::Consumer:

Public Types
typedef void(*	LastRetransmittedInterestDataDelayCallback) (Ptr< App > app, uint32_t seqno, Time delay, int32_t hopCount)

typedef void(*	FirstInterestDataDelayCallback) (Ptr< App > app, uint32_t seqno, Time delay, uint32_t retxCount, int32_t hopCount)

Public Types inherited from ns3::ndn::App
typedef void(*	InterestTraceCallback) (shared_ptr< const Interest >, Ptr< App >, shared_ptr< Face >)

typedef void(*	DataTraceCallback) (shared_ptr< const Data >, Ptr< App >, shared_ptr< Face >)

Public Member Functions
	Consumer ()
	Default constructor Sets up randomizer function and packet sequence number. More...

virtual	~Consumer ()

virtual void	OnData (shared_ptr< const Data > contentObject)
	Method that will be called every time new Data arrives. More...

virtual void	OnTimeout (uint32_t sequenceNumber)
	Timeout event. More...

void	SendPacket ()
	Actually send packet. More...

virtual void	WillSendOutInterest (uint32_t sequenceNumber)
	An event that is fired just before an Interest packet is actually send out (send is inevitable) More...

Public Member Functions inherited from ns3::ndn::App
	App ()
	Default constructor. More...

virtual	~App ()

uint32_t	GetId () const
	Get application ID (ID of applications face) More...

virtual void	OnInterest (shared_ptr< const Interest > interest)
	Method that will be called every time new Interest arrives. More...

Static Public Member Functions
static TypeId	GetTypeId ()

Static Public Member Functions inherited from ns3::ndn::App
static TypeId	GetTypeId ()

Protected Member Functions
virtual void	StartApplication ()
	Called at time specified by Start. More...

virtual void	StopApplication ()
	Called at time specified by Stop. More...

virtual void	ScheduleNextPacket ()=0
	Constructs the Interest packet and sends it using a callback to the underlying NDN protocol. More...

void	CheckRetxTimeout ()
	Checks if the packet need to be retransmitted becuase of retransmission timer expiration. More...

void	SetRetxTimer (Time retxTimer)
	Modifies the frequency of checking the retransmission timeouts. More...

Time	GetRetxTimer () const
	Returns the frequency of checking the retransmission timeouts. More...

Protected Member Functions inherited from ns3::ndn::App
virtual void	DoInitialize ()

virtual void	DoDispose ()

Protected Attributes
Ptr< UniformRandomVariable >	m_rand
	nonce generator More...

uint32_t	m_seq
	currently requested sequence number More...

uint32_t	m_seqMax
	maximum number of sequence number More...

EventId	m_sendEvent
	EventId of pending "send packet" event. More...

Time	m_retxTimer
	Currently estimated retransmission timer. More...

EventId	m_retxEvent
	Event to check whether or not retransmission should be performed. More...

Ptr< RttEstimator >	m_rtt
	RTT estimator. More...

Time	m_offTime
	Time interval between packets. More...

Name	m_interestName
	NDN Name of the Interest (use Name) More...

Time	m_interestLifeTime
	LifeTime for interest packet. More...

Protected Attributes inherited from ns3::ndn::App
bool	m_active
	Flag to indicate that application is active (set by StartApplication and StopApplication) More...

shared_ptr< AppFace >	m_face
	automatically created application face through which application communicates More...

uint32_t	m_appId

TracedCallback< shared_ptr< const Interest >, Ptr< App >, shared_ptr< Face > >	m_receivedInterests
	App-level trace of received Interests. More...

TracedCallback< shared_ptr< const Data >, Ptr< App >, shared_ptr< Face > >	m_receivedDatas
	App-level trace of received Data. More...

TracedCallback< shared_ptr< const Interest >, Ptr< App >, shared_ptr< Face > >	m_transmittedInterests
	App-level trace of transmitted Interests. More...

TracedCallback< shared_ptr< const Data >, Ptr< App >, shared_ptr< Face > >	m_transmittedDatas
	App-level trace of transmitted Data. More...

Detailed Description

NDN application for sending out Interest packets.

Config Paths

ns3::ndn::Consumer is accessible through the following paths with Config::Set and Config::Connect:

"/NodeList/[i]/ApplicationList/[i]/$ns3::ndn::App/$ns3::ndn::Consumer"
"/NodeList/[i]/ApplicationList/[i]/$ns3::ndn::Consumer"

Attributes

StartSeq: Initial sequence number
- Set with class: ns3::IntegerValue
- Underlying type: int32_t -2147483648:2147483647
- Initial value: 0
- Flags: construct write read
Prefix: Name of the Interest
- Set with class: NameValue
- Underlying type: Name
- Initial value: /
- Flags: construct write read
LifeTime: LifeTime for interest packet
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: 2s
- Flags: construct write read
RetxTimer: Timeout defining how frequent retransmission timeouts should be checked
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: 50ms
- Flags: construct write read

Attributes defined in parent class ns3::Application

StartTime: Time at which the application will start
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +0.0ns
- Flags: construct write read
StopTime: Time at which the application will stop
- Set with class: ns3::TimeValue
- Underlying type: Time –9223372036854775808.0ns:+9223372036854775807.0ns
- Initial value: +0.0ns
- Flags: construct write read

TraceSources

LastRetransmittedInterestDataDelay: Delay between last retransmitted Interest and received Data
Callback signature: ns3::ndn::Consumer::LastRetransmittedInterestDataDelayCallback
FirstInterestDataDelay: Delay between first transmitted Interest and received Data
Callback signature: ns3::ndn::Consumer::FirstInterestDataDelayCallback

TraceSources defined in parent class ns3::ndn::App

ReceivedInterests: ReceivedInterests
Callback signature: ns3::ndn::App::InterestTraceCallback
ReceivedDatas: ReceivedDatas
Callback signature: ns3::ndn::App::DataTraceCallback
TransmittedInterests: TransmittedInterests
Callback signature: ns3::ndn::App::InterestTraceCallback
TransmittedDatas: TransmittedDatas
Callback signature: ns3::ndn::App::DataTraceCallback

Size of this type is 624 bytes (on a 64-bit architecture).

Definition at line 50 of file ndn-consumer.hpp.

Member Typedef Documentation

typedef void(* ns3::ndn::Consumer::LastRetransmittedInterestDataDelayCallback) (Ptr< App > app, uint32_t seqno, Time delay, int32_t hopCount)

Definition at line 93 of file ndn-consumer.hpp.

typedef void(* ns3::ndn::Consumer::FirstInterestDataDelayCallback) (Ptr< App > app, uint32_t seqno, Time delay, uint32_t retxCount, int32_t hopCount)

Definition at line 94 of file ndn-consumer.hpp.

Constructor & Destructor Documentation

ns3::ndn::Consumer::Consumer ( )

Default constructor Sets up randomizer function and packet sequence number.

Definition at line 80 of file ndn-consumer.cpp.

References m_rtt.

virtual ns3::ndn::Consumer::~Consumer ( )

inlinevirtual

Definition at line 60 of file ndn-consumer.hpp.

References OnData(), OnTimeout(), SendPacket(), and WillSendOutInterest().

Member Function Documentation

TypeId ns3::ndn::Consumer::GetTypeId ( void )

static

Definition at line 47 of file ndn-consumer.cpp.

References GetRetxTimer(), m_interestLifeTime, m_interestName, m_seq, ns3::ndn::MakeNameAccessor(), ns3::ndn::MakeNameChecker(), and SetRetxTimer().

void ns3::ndn::Consumer::OnData ( shared_ptr< const Data > data )

virtual

Method that will be called every time new Data arrives.

Parameters

contentObject	Data header
payload	payload (potentially virtual) of the Data packet (may include packet tags of original packet)

Reimplemented from ns3::ndn::App.

Reimplemented in ns3::ndn::ConsumerWindow.

Definition at line 211 of file ndn-consumer.cpp.

References ns3::ndn::FwHopCountTag::Get(), ns3::ndn::App::m_active, m_rtt, and ns3::ndn::App::OnData().

Referenced by ns3::ndn::ConsumerWindow::OnData(), and ~Consumer().

void ns3::ndn::Consumer::OnTimeout ( uint32_t sequenceNumber )

virtual

Timeout event.

Parameters

sequenceNumber time outed sequence number

Reimplemented in ns3::ndn::ConsumerWindow.

Definition at line 257 of file ndn-consumer.cpp.

References m_rtt, and ScheduleNextPacket().

Referenced by CheckRetxTimeout(), ns3::ndn::ConsumerWindow::OnTimeout(), and ~Consumer().

void ns3::ndn::Consumer::SendPacket ( )

Actually send packet.

Definition at line 158 of file ndn-consumer.cpp.

References ns3::ndn::App::m_active, ns3::ndn::App::m_face, m_interestLifeTime, m_interestName, m_rand, m_seq, m_seqMax, ns3::ndn::App::m_transmittedInterests, ScheduleNextPacket(), and WillSendOutInterest().

Referenced by ns3::ndn::ConsumerCbr::ScheduleNextPacket(), ns3::ndn::ConsumerBatches::ScheduleNextPacket(), ns3::ndn::ConsumerWindow::ScheduleNextPacket(), and ~Consumer().

void ns3::ndn::Consumer::WillSendOutInterest ( uint32_t sequenceNumber )

virtual

An event that is fired just before an Interest packet is actually send out (send is inevitable)

The reason for "before" even is that in certain cases (when it is possible to satisfy from the local cache), the send call will immediately return data, and if "after" even was used, this after would be called after all processing of incoming data, potentially producing unexpected results.

Reimplemented in ns3::ndn::ConsumerWindow.

Definition at line 271 of file ndn-consumer.cpp.

References m_rtt.

Referenced by SendPacket(), ns3::ndn::ConsumerWindow::WillSendOutInterest(), and ~Consumer().

void ns3::ndn::Consumer::StartApplication ( )

protectedvirtual

Called at time specified by Start.

Reimplemented from ns3::ndn::App.

Definition at line 135 of file ndn-consumer.cpp.

References ScheduleNextPacket(), and ns3::ndn::App::StartApplication().

Referenced by ns3::ndn::ConsumerBatches::ConsumerBatches().

void ns3::ndn::Consumer::StopApplication ( )