yarp::os::SizedWriter Class Reference

Minimal requirements for an efficient Writer. More...

#include <yarp/os/SizedWriter.h>

Inheritance diagram for yarp::os::SizedWriter:

Public Member Functions
virtual	~SizedWriter ()
virtual size_t	length () const =0
virtual size_t	headerLength () const =0
virtual size_t	length (size_t index) const =0
virtual const char *	data (size_t index) const =0
virtual PortReader *	getReplyHandler ()=0
virtual Portable *	getReference ()=0
virtual void	write (OutputStream &os)
bool	write (ConnectionWriter &connection) const override
	Write this object to a network connection.
virtual bool	dropRequested ()=0
virtual void	startWrite () const =0
	Call when writing is about to begin.
virtual void	stopWrite () const =0
	Call when all writing is finished.
virtual void	clear ()
Public Member Functions inherited from yarp::os::PortWriter
virtual	~PortWriter ()
	Destructor.
virtual void	onCompletion () const
	This is called when the port has finished all writing operations.
virtual void	onCommencement () const
	This is called when the port is about to begin writing operations.
virtual yarp::os::Type	getWriteType () const

Detailed Description

Minimal requirements for an efficient Writer.

Some protocols require knowing the size of a message up front. In general, that requires generating the message before sending it, but a user could do something more clever. The SizedWriter class is referenced by the library instead of BufferedConnectionWriter specifically to leave that possibility open.

Definition at line 31 of file SizedWriter.h.

Constructor & Destructor Documentation

~SizedWriter()

yarp::os::SizedWriter::~SizedWriter ( )

virtualdefault

Member Function Documentation

clear()

void yarp::os::SizedWriter::clear ( )

virtual

Reimplemented in yarp::os::impl::BufferedConnectionWriter.

Definition at line 32 of file SizedWriter.cpp.

data()

virtual const char * yarp::os::SizedWriter::data ( size_t  index ) const

pure virtual

Implemented in yarp::os::impl::BufferedConnectionWriter.

dropRequested()

virtual bool yarp::os::SizedWriter::dropRequested ( )

pure virtual

Implemented in yarp::os::impl::BufferedConnectionWriter.

getReference()

virtual Portable * yarp::os::SizedWriter::getReference ( )

pure virtual

Implemented in yarp::os::impl::BufferedConnectionWriter.

getReplyHandler()

virtual PortReader * yarp::os::SizedWriter::getReplyHandler ( )

pure virtual

Implemented in yarp::os::impl::BufferedConnectionWriter.

headerLength()

virtual size_t yarp::os::SizedWriter::headerLength ( ) const

pure virtual

Implemented in yarp::os::impl::BufferedConnectionWriter.

length() [1/2]

virtual size_t yarp::os::SizedWriter::length ( ) const

pure virtual

Implemented in yarp::os::impl::BufferedConnectionWriter.

length() [2/2]

virtual size_t yarp::os::SizedWriter::length ( size_t  index ) const

pure virtual

Implemented in yarp::os::impl::BufferedConnectionWriter.

startWrite()

virtual void yarp::os::SizedWriter::startWrite ( ) const

pure virtual

Call when writing is about to begin.

Implemented in yarp::os::impl::BufferedConnectionWriter.

stopWrite()

virtual void yarp::os::SizedWriter::stopWrite ( ) const

pure virtual

Call when all writing is finished.

Implemented in yarp::os::impl::BufferedConnectionWriter.

write() [1/2]

bool yarp::os::SizedWriter::write ( ConnectionWriter &  writer ) const

overridevirtual

Write this object to a network connection.

Override this for your particular class. Be aware that depending on the nature of the connections a port has, and what protocol they use, and how efficient the YARP implementation is, this method may be called once, twice, or many times, as the result of a single call to Port::write

Parameters

writer

an interface to the network connection for writing

Returns

true iff the object is successfully written

Implements yarp::os::PortWriter.

Definition at line 24 of file SizedWriter.cpp.

write() [2/2]

void yarp::os::SizedWriter::write ( OutputStream &  os )

virtual

Reimplemented in yarp::os::impl::BufferedConnectionWriter.

Definition at line 16 of file SizedWriter.cpp.

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

• src/libYARP_os/src/yarp/os/SizedWriter.h
• src/libYARP_os/src/yarp/os/SizedWriter.cpp