ndn::Transport Class Reference

provides TLV-block delivery service More...

#include <transport.hpp>

Inheritance diagram for ndn::Transport:

Collaboration diagram for ndn::Transport:

Classes
class	Error

Public Types
typedef function< void(const Block &wire)>	ReceiveCallback
typedef function< void()>	ErrorCallback

Public Member Functions
	Transport ()
virtual	~Transport ()=default
virtual void	connect (boost::asio::io_service &ioService, const ReceiveCallback &receiveCallback)
	asynchronously open the connection More...
virtual void	close ()=0
	Close the connection. More...
virtual void	send (const Block &wire)=0
	send a TLV block through the transport More...
virtual void	send (const Block &header, const Block &payload)=0
	send two memory blocks through the transport More...
virtual void	pause ()=0
	pause the transport More...
virtual void	resume ()=0
	resume the transport More...
bool	isConnected () const
bool	isReceiving () const

Protected Member Functions
void	receive (const Block &wire)
	invoke the receive callback More...

Protected Attributes
boost::asio::io_service *	m_ioService
bool	m_isConnected
bool	m_isReceiving
ReceiveCallback	m_receiveCallback

Detailed Description

provides TLV-block delivery service

Definition at line 35 of file transport.hpp.

Member Typedef Documentation

ReceiveCallback

typedef function<void(const Block& wire)> ndn::Transport::ReceiveCallback

Definition at line 47 of file transport.hpp.

ErrorCallback

typedef function<void()> ndn::Transport::ErrorCallback

Definition at line 48 of file transport.hpp.

Constructor & Destructor Documentation

Transport()

ndn::Transport::Transport

(

)

Definition at line 36 of file transport.cpp.

~Transport()

virtual ndn::Transport::~Transport ( )

virtualdefault

Member Function Documentation

connect()

void ndn::Transport::connect ( boost::asio::io_service &  ioService, const ReceiveCallback &  receiveCallback  )

virtual

asynchronously open the connection

Parameters

ioService	io_service to create socket on
receiveCallback	callback function when a TLV block is received; must not be empty

Exceptions

boost::system::system_error

connection cannot be established

Reimplemented in ndn::TcpTransport, and ndn::UnixTransport.

Definition at line 44 of file transport.cpp.

References m_ioService, and m_receiveCallback.

Referenced by ndn::UnixTransport::connect(), and ndn::TcpTransport::connect().

close()

virtual void ndn::Transport::close ( )

pure virtual

Close the connection.

Implemented in nfd::face::InternalClientTransport, ndn::TcpTransport, ndn::UnixTransport, and ndn::util::DummyClientFace::Transport.

send() [1/2]

virtual void ndn::Transport::send ( const Block &  wire )

pure virtual

send a TLV block through the transport

Implemented in nfd::face::InternalClientTransport, ndn::util::DummyClientFace::Transport, ndn::TcpTransport, and ndn::UnixTransport.

send() [2/2]

virtual void ndn::Transport::send ( const Block &  header, const Block &  payload  )

pure virtual

send two memory blocks through the transport

Scatter/gather API is utilized to send two non-consecutive memory blocks together (as part of the same message in datagram-oriented transports).

Implemented in nfd::face::InternalClientTransport, ndn::util::DummyClientFace::Transport, ndn::TcpTransport, and ndn::UnixTransport.

pause()

virtual void ndn::Transport::pause ( )

pure virtual

pause the transport

Postcondition

receiveCallback will not be invoked

Note

This operation has no effect if transport has been paused, or when connection is being established.

Implemented in nfd::face::InternalClientTransport, ndn::TcpTransport, ndn::UnixTransport, and ndn::util::DummyClientFace::Transport.

resume()

virtual void ndn::Transport::resume ( )

pure virtual

resume the transport

Postcondition

receiveCallback will be invoked

Note

This operation has no effect if transport is not paused, or when connection is being established.

Implemented in nfd::face::InternalClientTransport, ndn::TcpTransport, ndn::util::DummyClientFace::Transport, and ndn::UnixTransport.

isConnected()

bool ndn::Transport::isConnected ( ) const

inline

Return values

true	connection has been established
false	connection is not yet established or has been closed

Definition at line 123 of file transport.hpp.

References m_isConnected.

isReceiving()

bool ndn::Transport::isReceiving ( ) const

inline

Return values

true	incoming packets are expected, receiveCallback will be invoked
false	incoming packets are not expected, receiveCallback will not be invoked

Definition at line 129 of file transport.hpp.

References m_isReceiving.

receive()

void ndn::Transport::receive ( const Block &  wire )

inlineprotected

invoke the receive callback

Definition at line 135 of file transport.hpp.

References m_receiveCallback.

Member Data Documentation

m_ioService

boost::asio::io_service* ndn::Transport::m_ioService

protected

Definition at line 116 of file transport.hpp.

Referenced by connect(), and ndn::util::DummyClientFace::Transport::getIoService().

m_isConnected

bool ndn::Transport::m_isConnected

protected

Definition at line 117 of file transport.hpp.

Referenced by isConnected().

m_isReceiving

bool ndn::Transport::m_isReceiving

protected

Definition at line 118 of file transport.hpp.

Referenced by isReceiving().

m_receiveCallback

ReceiveCallback ndn::Transport::m_receiveCallback

protected

Definition at line 119 of file transport.hpp.

Referenced by connect(), ndn::util::DummyClientFace::Transport::receive(), receive(), and nfd::face::InternalClientTransport::receiveFromLink().

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

• ndnSIM/ndn-cxx/src/transport/transport.hpp
• ndnSIM/ndn-cxx/src/transport/transport.cpp