Implements a compressed Stream, in GZip (.gz) format. More...

Inheritance diagram for DotZLib.GZipStream:

Collaboration diagram for DotZLib.GZipStream:

Public Member Functions
	GZipStream (string fileName, CompressLevel level)
	Creates a new file as a writeable GZipStream More...

	GZipStream (string fileName)
	Opens an existing file as a readable GZipStream More...

void	Dispose ()
	Closes the external file handle More...

override int	Read (byte[] buffer, int offset, int count)
	Attempts to read a number of bytes from the stream. More...

override int	ReadByte ()
	Attempts to read a single byte from the stream. More...

override void	Write (byte[] buffer, int offset, int count)
	Writes a number of bytes to the stream More...

override void	WriteByte (byte value)
	Writes a single byte to the stream More...

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

override long	Seek (long offset, SeekOrigin origin)
	Not suppported. More...

override void	Flush ()
	Flushes the `GZipStream`. More...

Properties
override bool	CanRead `[get]`
	Returns true of this stream can be read from, false otherwise More...

override bool	CanSeek `[get]`
	Returns false. More...

override bool	CanWrite `[get]`
	Returns true if this tsream is writeable, false otherwise More...

override long	Position `[get, set]`
	Gets/sets the current position in the `GZipStream`. Not suppported. More...

override long	Length `[get]`
	Gets the size of the stream. Not suppported. More...

Detailed Description

Implements a compressed Stream, in GZip (.gz) format.

Definition at line 17 of file GZipStream.cs.

Constructor & Destructor Documentation

DotZLib.GZipStream.GZipStream	(	string	fileName,
		CompressLevel	level
	)

inline

Creates a new file as a writeable GZipStream

Parameters

fileName	The name of the compressed file to create
level	The compression level to use when adding data

Exceptions

ZLibException If an error occurred in the internal zlib function

Definition at line 53 of file GZipStream.cs.

DotZLib.GZipStream.GZipStream ( string fileName )

inline

Opens an existing file as a readable GZipStream

Parameters

fileName The name of the file to open

Exceptions

ZLibException If an error occurred in the internal zlib function

Definition at line 66 of file GZipStream.cs.

Member Function Documentation

void DotZLib.GZipStream.Dispose ( )

inline

Closes the external file handle

Definition at line 125 of file GZipStream.cs.

override void DotZLib.GZipStream.Flush ( )

inline

Flushes the GZipStream.

In this implementation, this method does nothing. This is because excessive flushing may degrade the achievable compression rates.

Definition at line 265 of file GZipStream.cs.

override int DotZLib.GZipStream.Read	(	byte[]	buffer,
		int	offset,
		int	count
	)

inline

Attempts to read a number of bytes from the stream.

Parameters

buffer	The destination data buffer
offset	The index of the first destination byte in `buffer`
count	The number of bytes requested

Returns: The number of bytes read

Exceptions

ArgumentNullException	If `buffer` is null
ArgumentOutOfRangeException	If `count` or `offset` are negative
ArgumentException	If `offset` + `count` is > buffer.Length
NotSupportedException	If this stream is not readable.
ObjectDisposedException	If this stream has been disposed.

Definition at line 154 of file GZipStream.cs.

override int DotZLib.GZipStream.ReadByte ( )

inline

Attempts to read a single byte from the stream.

Returns: The byte that was read, or -1 in case of error or End-Of-File

Definition at line 181 of file GZipStream.cs.

override long DotZLib.GZipStream.Seek	(	long	offset,
		SeekOrigin	origin
	)

inline

Not suppported.

Parameters

offset
origin

Returns

Exceptions

NotSupportedException Always thrown

Definition at line 255 of file GZipStream.cs.

override void DotZLib.GZipStream.SetLength ( long value )

inline

Not supported.

Parameters

value

Exceptions

NotSupportedException Always thrown

Definition at line 243 of file GZipStream.cs.

override void DotZLib.GZipStream.Write	(	byte[]	buffer,
		int	offset,
		int	count
	)

inline

Writes a number of bytes to the stream

Parameters

buffer
offset
count

Exceptions

ArgumentNullException	If `buffer` is null
ArgumentOutOfRangeException	If `count` or `offset` are negative
ArgumentException	If `offset` + `count` is > buffer.Length
NotSupportedException	If this stream is not writeable.
ObjectDisposedException	If this stream has been disposed.

Definition at line 199 of file GZipStream.cs.

override void DotZLib.GZipStream.WriteByte ( byte value )

inline

Writes a single byte to the stream

Parameters

value The byte to add to the stream.

Exceptions

NotSupportedException	If this stream is not writeable.
ObjectDisposedException	If this stream has been disposed.

Definition at line 226 of file GZipStream.cs.

Property Documentation

override bool DotZLib.GZipStream.CanRead

get

Returns true of this stream can be read from, false otherwise

Definition at line 81 of file GZipStream.cs.

override bool DotZLib.GZipStream.CanSeek

get

Returns false.

Definition at line 93 of file GZipStream.cs.

override bool DotZLib.GZipStream.CanWrite

get

Returns true if this tsream is writeable, false otherwise

Definition at line 104 of file GZipStream.cs.

override long DotZLib.GZipStream.Length

get

Gets the size of the stream. Not suppported.

In this implementation this property is not supported

Exceptions

NotSupportedException Always thrown

Definition at line 293 of file GZipStream.cs.

override long DotZLib.GZipStream.Position

getset

Gets/sets the current position in the GZipStream. Not suppported.

In this implementation this property is not supported

Exceptions

NotSupportedException Always thrown

Definition at line 276 of file GZipStream.cs.

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

bial/zlib/contrib/dotzlib/DotZLib/GZipStream.cs

Public Member Functions

Properties

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Property Documentation