2005/5/9

acdk::io::MemReader Class Reference

Inheritance diagram for acdk::io::MemReader:

Detailed Description

Deprecated:

use ByteBufferReader

Author:

Roger Rene Kommer (mailto:kommer@artefaktur.com)

Version:

Revision

1.15

Date:

Date

2005/04/09 19:26:45

Public Member Functions
	MemReader (IN(RMemWriter) memwriter, int offset=0, int endpos=-1)
	MemReader (IN(RbyteArray) bytearray, int offset=0, int endpos=-1)
virtual int	available ()
	returns the number of bytes available in this stream before blocking Some Reader always return 0
virtual void	close ()
	closes this Reader.
virtual jlong	seek (SeekPos seekrel, jlong seekpos)
	Set stream position in this Reader to given position.
virtual jlong	skip (jlong n)
	Move forwart into the stream.
virtual int	read ()
	read a single byte from stream
virtual int	read (IN(RbyteArray) buffer, int offset=0, int len=-1)
	read the len bytes into buffer at offset of the buffer
virtual int	read (byte *buffer, int offset, int len)
virtual RString	getDeviceName ()
virtual bool	isWriteable ()
virtual bool	isReadable ()
virtual void	reset ()
	if mark is set, set stream to mark point otherwise to begin of this stream.
virtual bool	ready ()
RbyteArray	getBuffer ()
byte *	begin ()
byte *	end ()
byte *	cit ()
int	endPos ()
Protected Attributes
RbyteArray	_buffer
int	_seekPos
	current position
int	_endPos
	end of file, if -1 always read end of buffer

Constructor & Destructor Documentation

acdk::io::MemReader::MemReader (  IN(RMemWriter)  memwriter, int  offset = 0, int  endpos = -1 )

acdk::io::MemReader::MemReader (  IN(RbyteArray)  bytearray, int  offset = 0, int  endpos = -1 )  [inline]

Member Function Documentation

virtual int acdk::io::MemReader::available (   )  [inline, virtual]

returns the number of bytes available in this stream before blocking Some Reader always return 0 Reimplemented from acdk::io::Reader.

byte* acdk::io::MemReader::begin (   )  [inline]

byte* acdk::io::MemReader::cit (   )  [inline]

virtual void acdk::io::MemReader::close (   )  [inline, virtual]

closes this Reader. Note: Some Reader must be closed explicitaly Note: Reader implementation must be avare from closing a reader more than one Reimplemented from acdk::io::Reader.

byte* acdk::io::MemReader::end (   )  [inline]

int acdk::io::MemReader::endPos (   )  [inline]

RbyteArray acdk::io::MemReader::getBuffer (   )  [inline]

virtual RString acdk::io::MemReader::getDeviceName (   )  [inline, virtual]

Returns: the name of the device. Normally the filename Implements acdk::io::AbstractStorageReader.

virtual bool acdk::io::MemReader::isReadable (   )  [inline, virtual]

Returns: true if Storage is readable Implements acdk::io::AbstractStorageReader.

virtual bool acdk::io::MemReader::isWriteable (   )  [inline, virtual]

Returns: true if Storage is writable Implements acdk::io::AbstractStorageReader.

virtual int acdk::io::MemReader::read (  byte *  buffer, int  offset, int  len )  [virtual]

See also: other read(RbyteArray, int, int) Reimplemented from acdk::io::AbstractReader.

virtual int acdk::io::MemReader::read (  IN(RbyteArray)  buffer, int  offset = 0, int  len = -1 )  [virtual]

read the len bytes into buffer at offset of the buffer Parameters: buffer  where to write the bytes offset  offset to write into buffer len  how many bytes to read. if == -1 read into many bytes, that fits into buffer (buffer->length() - offset) `` Returns: number of bytes readed. may less than input if EOS is reached Exceptions: EOF  exception, if trying to read behind EOS Reimplemented from acdk::io::AbstractReader.

virtual int acdk::io::MemReader::read (   )  [virtual]

read a single byte from stream Returns: the byte readed or -1 if EOS. Exceptions: EOF  exception, if trying to read behind EOS Reimplemented from acdk::io::AbstractReader.

virtual bool acdk::io::MemReader::ready (   )  [virtual]

Returns: true, if at least 1 byte can be readed from stream Reimplemented from acdk::io::Reader.

virtual void acdk::io::MemReader::reset (   )  [virtual]

if mark is set, set stream to mark point otherwise to begin of this stream. Implements acdk::io::AbstractReader.

virtual jlong acdk::io::MemReader::seek (  SeekPos  seekrel, jlong  seekpos )  [virtual]

Set stream position in this Reader to given position. Returns: the absolute position in this stream Reimplemented from acdk::io::AbstractReader.

virtual jlong acdk::io::MemReader::skip (  jlong  n  )  [virtual]

Move forwart into the stream. Returns: how many bytes skipped. May less then input, in case EOS is reached Reimplemented from acdk::io::AbstractReader.

Member Data Documentation

RbyteArray acdk::io::MemReader::_buffer [protected]

int acdk::io::MemReader::_endPos [protected]

end of file, if -1 always read end of buffer

int acdk::io::MemReader::_seekPos [protected]

current position