output stream that writes into a buffer of fixed length which must be provided by the caller. More...

Inheritance diagram for DcmOutputBufferStream:

Public Member Functions
	DcmOutputBufferStream (void *buf, offile_off_t bufLen)
	constructor More...

virtual	~DcmOutputBufferStream ()
	destructor

virtual void	flushBuffer (void *&buffer, offile_off_t &length)
	retrieves and flushes the underlying buffer. More...

virtual offile_off_t	filled ()
	query the number of bytes in buffer without flushing it. More...

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

virtual OFBool	good () const
	returns the status of the stream. More...

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

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

virtual offile_off_t	avail () const
	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)
	processes as many bytes as possible from the given input block. More...

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

virtual offile_off_t	tell () const
	returns the total number of bytes written to the stream so far More...

virtual OFCondition	installCompressionFilter (E_StreamCompression filterType)
	installs a compression filter for the given stream compression type, which should be neither ESC_none nor ESC_unsupported. More...

Private Member Functions
	DcmOutputBufferStream (const DcmOutputBufferStream &)
	private unimplemented copy constructor

DcmOutputBufferStream &	operator= (const DcmOutputBufferStream &)
	private unimplemented copy assignment operator

Private Attributes
DcmBufferConsumer	consumer_
	the final consumer of the filter chain

Additional Inherited Members
Protected Member Functions inherited from DcmOutputStream
	DcmOutputStream (DcmConsumer *initial)
	protected constructor, to be called from derived class constructor More...

Detailed Description

output stream that writes into a buffer of fixed length which must be provided by the caller.

Constructor & Destructor Documentation

DcmOutputBufferStream::DcmOutputBufferStream	(	void *	buf,
		offile_off_t	bufLen
	)

constructor

Parameters

buf	buffer in which data is stored. Must be allocated by caller and remain valid during the lifetime of this object.
bufLen	buffer length, must be even number > 0.

virtual offile_off_t DcmOutputBufferStream::filled ( )

virtual

query the number of bytes in buffer without flushing it.

virtual void DcmOutputBufferStream::flushBuffer	(	void *&	buffer,
		offile_off_t &	length
	)

virtual

retrieves and flushes the underlying buffer.

After return of this method, the buffer is considered to have been flushed (copied, stored) by the caller and is reused by the next write operation.

Parameters

buffer	pointer to user provided buffer returned in this parameter
length	number of bytes in buffer returned in this parameter

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