pure virtual abstract base class for input filters, i.e. More...

Inheritance diagram for DcmInputFilter:

Public Member Functions
virtual	~DcmInputFilter ()
	destructor

virtual void	append (DcmProducer &producer)=0
	determines the producer from which the filter is supposed to read it's input. More...

Public Member Functions inherited from DcmProducer
virtual	~DcmProducer ()
	destructor

virtual OFBool	good () const =0
	returns the status of the producer. More...

virtual OFCondition	status () const =0
	returns the status of the producer as an OFCondition object. More...

virtual OFBool	eos ()=0
	returns true if the producer is at the end of stream. More...

virtual offile_off_t	avail ()=0
	returns the minimum number of bytes that can be read with the next call to read(). More...

virtual offile_off_t	read (void *buf, offile_off_t buflen)=0
	reads as many bytes as possible into the given block. More...

virtual offile_off_t	skip (offile_off_t skiplen)=0
	skips over the given number of bytes (or less) More...

virtual void	putback (offile_off_t num)=0
	resets the stream to the position by the given number of bytes. More...

Detailed Description

pure virtual abstract base class for input filters, i.e.

intermediate nodes of a filter chain in an input stream.

Member Function Documentation

virtual void DcmInputFilter::append ( DcmProducer & producer )

pure virtual

determines the producer from which the filter is supposed to read it's input.

Once a producer for the input filter has been defined, it cannot be changed anymore during the lifetime of the object.

Parameters

producer reference to producer, must not be circular chain

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