A Stream that calculates a CRC32 (a checksum) on all bytes read, or on all bytes written. More...

Inheritance diagram for Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream:

Public Member Functions
	CrcCalculatorStream (System.IO.Stream stream)
	The default constructor. More...

	CrcCalculatorStream (System.IO.Stream stream, bool leaveOpen)
	The constructor allows the caller to specify how to handle the underlying stream at close. More...

	CrcCalculatorStream (System.IO.Stream stream, Int64 length)
	A constructor allowing the specification of the length of the stream to read. More...

	CrcCalculatorStream (System.IO.Stream stream, Int64 length, bool leaveOpen)
	A constructor allowing the specification of the length of the stream to read, as well as whether to keep the underlying stream open upon Close(). More...

override int	Read (byte[] buffer, int offset, int count)
	Read from the stream More...

override void	Write (byte[] buffer, int offset, int count)
	Write to the stream. More...

override void	Flush ()
	Flush the stream. More...

override long	Seek (long offset, System.IO.SeekOrigin origin)
	Not implemented. More...

override void	SetLength (long value)
	Not implemented. More...

override void	Close ()
	Closes the stream. More...

Properties
Int64	TotalBytesSlurped `[get]`
	Gets the total number of bytes run through the CRC32 calculator. More...

Int32	Crc `[get]`
	Provides the current CRC for all blocks slurped in. More...

bool	LeaveOpen `[get, set]`
	Indicates whether the underlying stream will be left open when the CrcCalculatorStream is Closed. More...

override bool	CanRead `[get]`
	Indicates whether the stream supports reading. More...

override bool	CanSeek `[get]`
	Indicates whether the stream supports seeking. More...

override bool	CanWrite `[get]`
	Indicates whether the stream supports writing. More...

override long	Length `[get]`
	Not implemented. More...

override long	Position `[get, set]`
	Not implemented. More...

Detailed Description

A Stream that calculates a CRC32 (a checksum) on all bytes read, or on all bytes written.

This class can be used to verify the CRC of a ZipEntry when reading from a stream, or to calculate a CRC when writing to a stream. The stream should be used to either read, or write, but not both. If you intermix reads and writes, the results are not defined.

This class is intended primarily for use internally by the DotNetZip library.

Constructor & Destructor Documentation

Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.CrcCalculatorStream ( System.IO.Stream stream )

The default constructor.

Instances returned from this constructor will leave the underlying stream open upon Close().

Parameters

stream The underlying stream

Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.CrcCalculatorStream	(	System.IO.Stream	stream,
		bool	leaveOpen
	)

The constructor allows the caller to specify how to handle the underlying stream at close.

Parameters

stream	The underlying stream
leaveOpen	true to leave the underlying stream open upon close of the CrcCalculatorStream.; false otherwise.

Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.CrcCalculatorStream	(	System.IO.Stream	stream,
		Int64	length
	)

A constructor allowing the specification of the length of the stream to read.

Instances returned from this constructor will leave the underlying stream open upon Close().

Parameters

stream	The underlying stream
length	The length of the stream to slurp

Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.CrcCalculatorStream	(	System.IO.Stream	stream,
		Int64	length,
		bool	leaveOpen
	)

A constructor allowing the specification of the length of the stream to read, as well as whether to keep the underlying stream open upon Close().

Parameters

stream	The underlying stream
length	The length of the stream to slurp
leaveOpen	true to leave the underlying stream open upon close of the CrcCalculatorStream.; false otherwise.

Member Function Documentation

override void Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Close ( )

Closes the stream.

override void Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Flush ( )

Flush the stream.

override int Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Read	(	byte[]	buffer,
		int	offset,
		int	count
	)

Read from the stream

Parameters

buffer	the buffer to read
offset	the offset at which to start
count	the number of bytes to read

Returns: the number of bytes actually read

override long Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Seek	(	long	offset,
		System.IO.SeekOrigin	origin
	)

Not implemented.

Parameters

offset	N/A
origin	N/A

Returns: N/A

override void Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.SetLength ( long value )

Not implemented.

Parameters

value N/A

override void Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Write	(	byte[]	buffer,
		int	offset,
		int	count
	)

Write to the stream.

Parameters

buffer	the buffer from which to write
offset	the offset at which to start writing
count	the number of bytes to write

Property Documentation

override bool Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.CanRead

get

Indicates whether the stream supports reading.

override bool Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.CanSeek

get

Indicates whether the stream supports seeking.

override bool Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.CanWrite

get

Indicates whether the stream supports writing.

Int32 Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Crc

get

Provides the current CRC for all blocks slurped in.

bool Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.LeaveOpen

getset

Indicates whether the underlying stream will be left open when the CrcCalculatorStream is Closed.

override long Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Length

get

Not implemented.

override long Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.Position

getset

Not implemented.

Int64 Electrotank.Electroserver5.Ionic.Zlib.CrcCalculatorStream.TotalBytesSlurped

get

Gets the total number of bytes run through the CRC32 calculator.

This is either the total number of bytes read, or the total number of bytes written, depending on the direction of this stream.

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Property Documentation