Dummy ConnectionReader that has no data. More...

#include <yarp/os/NullConnectionReader.h>

Inheritance diagram for yarp::os::NullConnectionReader:

Public Member Functions
bool	expectBlock (char *data, size_t len) override
	Read a block of data from the network connection.

std::string	expectText (const char terminatingChar='\n') override
	Read some text from the network connection.

std::int8_t	expectInt8 () override
	Read a 8-bit integer from the network connection.

std::int16_t	expectInt16 () override
	Read a 16-bit integer from the network connection.

std::int32_t	expectInt32 () override
	Read a 32-bit integer from the network connection.

std::int64_t	expectInt64 () override
	Read a 64-bit integer from the network connection.

yarp::conf::float32_t	expectFloat32 () override
	Read a 32-bit floating point number from the network connection.

yarp::conf::float64_t	expectFloat64 () override
	Read a 64-bit floating point number from the network connection.

bool	pushInt (int x) override
	Store an integer to return on the next call to expectInt()

bool	isTextMode () const override
	Check if the connection is text mode.

bool	convertTextMode () override
	Reads in a standard description in text mode, and converts it to a standard description in binary.

size_t	getSize () const override
	Checks how much data is available.

ConnectionWriter *	getWriter () override
	Gets a way to reply to the message, if possible.

Bytes	readEnvelope () override
	Read a message envelope, if available.

Portable *	getReference () const override
	Get a direct pointer to the object being sent, if possible.

Contact	getRemoteContact () const override
	Gets information about who is supplying the data being read, if that information is available.

Contact	getLocalContact () const override
	Gets information about who is receiving the data, if that information is available.

bool	isValid () const override

bool	isActive () const override

bool	isError () const override

void	requestDrop () override
	Tag the connection to be dropped after the current message.

const Searchable &	getConnectionModifiers () const override
	Access modifiers associated with the connection, if any.

Public Member Functions inherited from yarp::os::ConnectionReader
virtual	~ConnectionReader ()
	Destructor.

virtual std::string	expectString ()
	Read a string from the network connection.

virtual bool	isBareMode () const =0
	Check if the connection is bare mode.

virtual bool	setSize (size_t len)=0

virtual void	setParentConnectionReader (ConnectionReader *parentConnectionReader)
	Set ConnectionReader to be used for reading the envelope.

virtual void	flushWriter ()=0

Additional Inherited Members
Static Public Member Functions inherited from yarp::os::ConnectionReader
static ConnectionReader *	createConnectionReader (InputStream &is)
	Create an instance of YARP's standard connection reader implementation.

static bool	readFromStream (PortReader &portable, InputStream &is)

Detailed Description

Dummy ConnectionReader that has no data.

Definition at line 21 of file NullConnectionReader.h.

Member Function Documentation

◆ convertTextMode()

bool yarp::os::NullConnectionReader::convertTextMode ( )

overridevirtual

Reads in a standard description in text mode, and converts it to a standard description in binary.

Useful if you only operate on the binary description usually, and just want to permit text mode for command-line interaction. If isTextMode would return false, no conversion is done.

Returns: true if the conversion was possible

Implements yarp::os::ConnectionReader.

Definition at line 62 of file NullConnectionReader.cpp.

◆ expectBlock()

bool yarp::os::NullConnectionReader::expectBlock	(	char *	data,
		size_t	len
	)

overridevirtual

Read a block of data from the network connection.

Parameters

data	Start of the block of data
len	Length of the block of data

Returns: true on success

Implements yarp::os::ConnectionReader.

Definition at line 9 of file NullConnectionReader.cpp.

◆ expectFloat32()

yarp::conf::float32_t yarp::os::NullConnectionReader::expectFloat32 ( )

overridevirtual

Read a 32-bit floating point number from the network connection.

Returns: the floating point number read from the connection

Implements yarp::os::ConnectionReader.

Definition at line 42 of file NullConnectionReader.cpp.

◆ expectFloat64()

yarp::conf::float64_t yarp::os::NullConnectionReader::expectFloat64 ( )

overridevirtual

Read a 64-bit floating point number from the network connection.

Returns: the floating point number read from the connection

Implements yarp::os::ConnectionReader.

Definition at line 47 of file NullConnectionReader.cpp.

◆ expectInt16()

std::int16_t yarp::os::NullConnectionReader::expectInt16 ( )

overridevirtual

Read a 16-bit integer from the network connection.

Returns: the integer read from the connection

Implements yarp::os::ConnectionReader.

Definition at line 27 of file NullConnectionReader.cpp.

◆ expectInt32()

std::int32_t yarp::os::NullConnectionReader::expectInt32 ( )

overridevirtual

Read a 32-bit integer from the network connection.

Returns: the integer read from the connection

Implements yarp::os::ConnectionReader.

Definition at line 32 of file NullConnectionReader.cpp.

◆ expectInt64()

std::int64_t yarp::os::NullConnectionReader::expectInt64 ( )

overridevirtual

Read a 64-bit integer from the network connection.

Returns: the integer read from the connection

Implements yarp::os::ConnectionReader.

Definition at line 37 of file NullConnectionReader.cpp.

◆ expectInt8()

std::int8_t yarp::os::NullConnectionReader::expectInt8 ( )

overridevirtual

Read a 8-bit integer from the network connection.

Returns: the integer read from the connection

Implements yarp::os::ConnectionReader.

Definition at line 22 of file NullConnectionReader.cpp.

◆ expectText()

std::string yarp::os::NullConnectionReader::expectText ( const char terminatingChar = '\n' )

overridevirtual

Read some text from the network connection.

Parameters

terminatingChar The marker for the end of the text

Returns: the text read from the connection

Implements yarp::os::ConnectionReader.

Definition at line 16 of file NullConnectionReader.cpp.

◆ getConnectionModifiers()

const yarp::os::Searchable & yarp::os::NullConnectionReader::getConnectionModifiers ( ) const

overridevirtual

Access modifiers associated with the connection, if any.

Returns: connection configuration object

Implements yarp::os::ConnectionReader.

Definition at line 116 of file NullConnectionReader.cpp.

◆ getLocalContact()

yarp::os::Contact yarp::os::NullConnectionReader::getLocalContact ( ) const

overridevirtual

Gets information about who is receiving the data, if that information is available.

Returns: contact information about sender (Contact::invalid if not available)

Implements yarp::os::ConnectionReader.

Definition at line 92 of file NullConnectionReader.cpp.

◆ getReference()

yarp::os::Portable * yarp::os::NullConnectionReader::getReference ( ) const

overridevirtual

Get a direct pointer to the object being sent, if possible.

This only makes sense in local operation, when sender and receiver are in the same process; in all other situations this returns nullptr.

Returns: The message object, or nullptr if not available

Implements yarp::os::ConnectionReader.

Definition at line 82 of file NullConnectionReader.cpp.

◆ getRemoteContact()

yarp::os::Contact yarp::os::NullConnectionReader::getRemoteContact ( ) const

overridevirtual

Gets information about who is supplying the data being read, if that information is available.

Returns: contact information about sender (Contact::invalid if not available)

Implements yarp::os::ConnectionReader.

Definition at line 87 of file NullConnectionReader.cpp.

◆ getSize()

size_t yarp::os::NullConnectionReader::getSize ( ) const

overridevirtual

Checks how much data is available.

Returns: the number of bytes left on the connection.

Implements yarp::os::ConnectionReader.

Definition at line 67 of file NullConnectionReader.cpp.

◆ getWriter()

yarp::os::ConnectionWriter * yarp::os::NullConnectionReader::getWriter ( )

overridevirtual

Gets a way to reply to the message, if possible.

Returns: An object that permits replies, or nullptr if this cannot be done.

Implements yarp::os::ConnectionReader.

Definition at line 72 of file NullConnectionReader.cpp.

◆ isActive()

bool yarp::os::NullConnectionReader::isActive ( ) const

overridevirtual

Returns: true if the reader is active. Readers become inactive if the connection they are associated with breaks.

Implements yarp::os::ConnectionReader.

Definition at line 102 of file NullConnectionReader.cpp.

◆ isError()

bool yarp::os::NullConnectionReader::isError ( ) const

overridevirtual

Returns: true if the reader encountered an error. Readers can encounter an error if there is some data loss. For unreliable protocols like UDP/Multicast, where losses are not unexpected, this error flag will be reset for the next incoming message.

Implements yarp::os::ConnectionReader.

Definition at line 107 of file NullConnectionReader.cpp.

◆ isTextMode()

bool yarp::os::NullConnectionReader::isTextMode ( ) const

overridevirtual

Check if the connection is text mode.

If it is, you are encouraged (but by no means required) to use a human-readable representation of your data structure.

Returns: true if the connection is text mode (as opposed to binary)

Implements yarp::os::ConnectionReader.

Definition at line 57 of file NullConnectionReader.cpp.

◆ isValid()

bool yarp::os::NullConnectionReader::isValid ( ) const

overridevirtual

Returns: true if the reader is valid. Invalid readers may signal a shutdown.

Implements yarp::os::ConnectionReader.

Definition at line 97 of file NullConnectionReader.cpp.

◆ pushInt()

bool yarp::os::NullConnectionReader::pushInt ( int x )

overridevirtual

Store an integer to return on the next call to expectInt()

Parameters

x	the integer to store

Returns: true on success

Implements yarp::os::ConnectionReader.

Definition at line 52 of file NullConnectionReader.cpp.

◆ readEnvelope()

yarp::os::Bytes yarp::os::NullConnectionReader::readEnvelope ( )

overridevirtual

Read a message envelope, if available.

Reimplemented from yarp::os::ConnectionReader.

Definition at line 77 of file NullConnectionReader.cpp.

◆ requestDrop()

void yarp::os::NullConnectionReader::requestDrop ( )

overridevirtual

Tag the connection to be dropped after the current message.

Implements yarp::os::ConnectionReader.

Definition at line 112 of file NullConnectionReader.cpp.

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

src/libYARP_os/src/yarp/os/NullConnectionReader.h
src/libYARP_os/src/yarp/os/NullConnectionReader.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ convertTextMode()

◆ expectBlock()

◆ expectFloat32()

◆ expectFloat64()

◆ expectInt16()

◆ expectInt32()

◆ expectInt64()

◆ expectInt8()

◆ expectText()

◆ getConnectionModifiers()

◆ getLocalContact()

◆ getReference()

◆ getRemoteContact()

◆ getSize()

◆ getWriter()

◆ isActive()

◆ isError()

◆ isTextMode()

◆ isValid()

◆ pushInt()

◆ readEnvelope()

◆ requestDrop()