#include <ZipCompressor.h>

Inheritance diagram for CZipCompressor::COffsetsArray:

Public Member Functions
void	Clear ()

COffsetsPair *	FindMax (ZIP_SIZE_TYPE offset, bool uncompressed=true)

COffsetsPair *	FindMin (ZIP_SIZE_TYPE offset, bool uncompressed=true)

CStat	GetStatistics () const

void	Load (const CZipAutoBuffer &buffer)

void	Save (CZipAutoBuffer &buffer) const

Detailed Description

The array of offsets pairs produced during creating a seekable compressed data.

Member Function Documentation

void CZipCompressor::COffsetsArray::Clear ( )

Removes all elements from the array.

COffsetsPair* CZipCompressor::COffsetsArray::FindMax	(	ZIP_SIZE_TYPE	offset,
		bool	uncompressed = `true`
	)

Finds the maximum offset not larger than the offset argument.

Parameters

offset	The maximum offset to look for.
uncompressed	`true` to look for the offset in uncompressed data (COffsetsPair::m_uUncompressedOffset); `false` to look for the offset in compressed data (COffsetsPair::m_uCompressedOffset).

COffsetsPair* CZipCompressor::COffsetsArray::FindMin	(	ZIP_SIZE_TYPE	offset,
		bool	uncompressed = `true`
	)

Finds the minimum offset not smaller than the offset argument.

Parameters

offset	The minimum offset to look for.
uncompressed	`true` to look for the offset in uncompressed data (COffsetsPair::m_uUncompressedOffset); `false` to look for the offset in compressed data (COffsetsPair::m_uCompressedOffset).

CStat CZipCompressor::COffsetsArray::GetStatistics ( ) const

Returns the statistics about the blocks in compressed and uncompressed data.

Note: These values can help you in determining the required synchronization ratio.

void CZipCompressor::COffsetsArray::Load ( const CZipAutoBuffer & buffer )

Loads the previously saved array from the buffer.

Parameters

buffer The buffer to load the array from.

Note: If the array was saved using 8 bytes offsets, you won't be able to load it with the ZipArchive Library compiled without the Zip64 support.

See Also: Creating Seekable Compressed Data; Zip64 Format: Crossing the Limits of File Sizes and Number of Files and Segments; Save

void CZipCompressor::COffsetsArray::Save ( CZipAutoBuffer & buffer ) const

Saves the array into the buffer. If possible, the method uses 4 bytes for offsets, otherwise 8 bytes are used but only when Zip64 is enabled.

Parameters

buffer The buffer to save the array into.

Note: If the array is saved using 8 bytes offsets, you won't be able to load it with the ZipArchive Library compiled without the Zip64 support.

See Also: Creating Seekable Compressed Data; Zip64 Format: Crossing the Limits of File Sizes and Number of Files and Segments; Load

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