Puma::Source Class Reference

#include <Puma/Source.h>

Inheritance diagram for Puma::Source:

Description

Interface for all input sources.

Public Member Functions
	Source ()
	Constructs an empty source object.
virtual	~Source ()
	Destroys the source object.
virtual int	read (char *buffer, int n)=0
	Read n bytes from the source into the given string buffer.
virtual int	size ()
	Get the size of the source.

Constructor & Destructor Documentation

Source()

Puma::Source::Source ( )

inline

Constructs an empty source object.

~Source()

virtual Puma::Source::~Source ( )

inlinevirtual

Destroys the source object.

Member Function Documentation

read()

virtual int Puma::Source::read ( char * buffer, int n )

pure virtual

Read n bytes from the source into the given string buffer.

Parameters

buffer	The string used as buffer for the bytes read.
n	The number of bytes to read.

Returns

The number of bytes read, or -1 in case of errors.

Implemented in Puma::Pipe, Puma::FdSource, Puma::FileSource, Puma::KeyboardSource, and Puma::StringSource.

size()

virtual int Puma::Source::size ( )

inlinevirtual

Get the size of the source.

To be implemented if a specific source supports asking for its size.

Returns

This default implementation always returns -1 to indicate that the size is unknown.

Reimplemented in Puma::FdSource, and Puma::StringSource.