Version: 3.1.3
wxLZMAOutputStream Class Reference

#include <wx/lzmastream.h>

+ Inheritance diagram for wxLZMAOutputStream:

Detailed Description

This filter stream compresses data using XZ format.

XZ format uses LZMA compression, making it (significantly) more efficient than Gzip format used by wxZlibOutputStream. Output generated by this class is compatible with xz utilities working with .xz files and also supported by 7-Zip program, even though it is different from its native .7z format.

See Using LZMA compression with liblzma for information about liblzma, required in order to use this class.

Library:  wxBase
Category:  Archive support, Streams
See also
wxOutputStream, wxZlibOutputStream, wxLZMAInputStream
Since
3.1.2

Private Member Functions

 wxLZMAOutputStream (wxOutputStream &stream)
 Create compressing stream associated with the given underlying stream. More...
 
 wxLZMAOutputStream (wxOutputStream *stream)
 Create compressing stream associated with the given underlying stream and takes ownership of it. More...
 

Additional Inherited Members

- Public Member Functions inherited from wxFilterOutputStream
 wxFilterOutputStream (wxOutputStream &stream)
 Initializes a "filter" stream. More...
 
 wxFilterOutputStream (wxOutputStream *stream)
 Initializes a "filter" stream. More...
 
- Public Member Functions inherited from wxOutputStream
 wxOutputStream ()
 Creates a dummy wxOutputStream object. More...
 
virtual ~wxOutputStream ()
 Destructor. More...
 
virtual bool Close ()
 Closes the stream, returning false if an error occurs. More...
 
virtual size_t LastWrite () const
 Returns the number of bytes written during the last Write(). More...
 
void PutC (char c)
 Puts the specified character in the output queue and increments the stream position. More...
 
virtual wxFileOffset SeekO (wxFileOffset pos, wxSeekMode mode=wxFromStart)
 Changes the stream current position. More...
 
virtual wxFileOffset TellO () const
 Returns the current stream position. More...
 
virtual wxOutputStreamWrite (const void *buffer, size_t size)
 Writes up to the specified amount of bytes using the data of buffer. More...
 
wxOutputStreamWrite (wxInputStream &stream_in)
 Reads data from the specified input stream and stores them in the current stream. More...
 
bool WriteAll (const void *buffer, size_t size)
 Writes exactly the specified number of bytes from the buffer. More...
 
- Public Member Functions inherited from wxStreamBase
 wxStreamBase ()
 Creates a dummy stream object. More...
 
virtual ~wxStreamBase ()
 Destructor. More...
 
wxStreamError GetLastError () const
 This function returns the last error. More...
 
virtual wxFileOffset GetLength () const
 Returns the length of the stream in bytes. More...
 
virtual size_t GetSize () const
 This function returns the size of the stream. More...
 
virtual bool IsOk () const
 Returns true if no error occurred on the stream. More...
 
virtual bool IsSeekable () const
 Returns true if the stream supports seeking to arbitrary offsets. More...
 
void Reset (wxStreamError error=wxSTREAM_NO_ERROR)
 Resets the stream state. More...
 
bool operator! () const
 Returns the opposite of IsOk(). More...
 
- Protected Member Functions inherited from wxOutputStream
size_t OnSysWrite (const void *buffer, size_t bufsize)
 Internal function. More...
 
- Protected Member Functions inherited from wxStreamBase
virtual wxFileOffset OnSysSeek (wxFileOffset pos, wxSeekMode mode)
 Internal function. More...
 
virtual wxFileOffset OnSysTell () const
 Internal function. More...
 

Constructor & Destructor Documentation

wxLZMAOutputStream::wxLZMAOutputStream ( wxOutputStream stream)
private

Create compressing stream associated with the given underlying stream.

This overload does not take ownership of the stream.

wxLZMAOutputStream::wxLZMAOutputStream ( wxOutputStream stream)
private

Create compressing stream associated with the given underlying stream and takes ownership of it.

As with the base wxFilterOutputStream class, passing stream by pointer indicates that this object takes ownership of it and will delete it when it is itself destroyed.