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

Inheritance diagram for DcmOutputFilter:

Public Member Functions
virtual	~DcmOutputFilter ()
	destructor

virtual void	append (DcmConsumer &consumer)=0
	determines the consumer to which the filter is supposed to write it's output. More...

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

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

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

virtual OFBool	isFlushed () const =0
	returns true if the consumer is flushed, i.e. More...

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

virtual offile_off_t	write (const void *buf, offile_off_t buflen)=0
	processes as many bytes as possible from the given input block. More...

virtual void	flush ()=0
	instructs the consumer to flush its internal content until either the consumer becomes "flushed" or I/O suspension occurs. More...

Detailed Description

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

intermediate nodes of a filter chain in an output stream.

Member Function Documentation

virtual void DcmOutputFilter::append ( DcmConsumer & consumer )

pure virtual

determines the consumer to which the filter is supposed to write it's output.

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

Parameters

consumer reference to consumer, must not be circular chain

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