2005/5/9

acdk::io::BytePtrReader Class Reference

Inheritance diagram for acdk::io::BytePtrReader:

Detailed Description

ptr must be owned by other class

Public Member Functions
	BytePtrReader (const byte *begin, int len)
	BytePtrReader (const byte *begin, const byte *end)
virtual bool	markSupported ()
virtual void	mark (int readAheadLimit)
	note: readAheadLimit will be ignored
virtual void	reset ()
	if mark is set, set stream to mark point otherwise to begin of this stream.
virtual int	available ()
	returns the number of bytes available in this stream before blocking Some Reader always return 0
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.
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)
void	close ()
	closes this Reader.
Protected Attributes
const byte *	_begin
const byte *	_end
const byte *	_ptr
const byte *	_mark

Constructor & Destructor Documentation

acdk::io::BytePtrReader::BytePtrReader (  const byte *  begin, int  len )  [inline]

acdk::io::BytePtrReader::BytePtrReader (  const byte *  begin, const byte *  end )  [inline]

Member Function Documentation

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

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

void acdk::io::BytePtrReader::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.

virtual void acdk::io::BytePtrReader::mark (  int  readAheadLimit  )  [inline, virtual]

note: readAheadLimit will be ignored Reimplemented from acdk::io::Reader.

virtual bool acdk::io::BytePtrReader::markSupported (   )  [inline, virtual]

Reimplemented from acdk::io::Reader.

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

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

virtual int acdk::io::BytePtrReader::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.

int acdk::io::BytePtrReader::read (   )  [inline, 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 void acdk::io::BytePtrReader::reset (   )  [inline, virtual]

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

virtual jlong acdk::io::BytePtrReader::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::BytePtrReader::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

const byte* acdk::io::BytePtrReader::_begin [protected]

const byte* acdk::io::BytePtrReader::_end [protected]

const byte* acdk::io::BytePtrReader::_mark [protected]

const byte* acdk::io::BytePtrReader::_ptr [protected]