#include <MediaBlockList.h>

Public Member Functions
	MediaBlockList (off_t filesize=off_t(-1))

bool	haveBlocks () const
	do we have a blocklist describing the file? set to true when addBlock() is called More...

size_t	addBlock (off_t off, size_t size)
	add a block with offset off and size size to the block list. More...

MediaBlock	getBlock (size_t blkno) const
	return the offset/size of a block with number blkno More...

size_t	numBlocks () const
	return the number of blocks in the blocklist More...

void	setFilesize (off_t newfilesize=off_t(-1))
	set / return the size of the whole file More...

off_t	getFilesize () const

bool	haveFilesize () const

void	setFileChecksum (std::string ctype, int cl, unsigned char *c)
	set / verify the checksum over the whole file More...

bool	createFileDigest (Digest &digest) const

bool	verifyFileDigest (Digest &digest) const

bool	haveFileChecksum () const

void	setChecksum (size_t blkno, std::string cstype, int csl, unsigned char *cs, size_t cspad=0)
	set / verify the (strong) checksum over a single block More...

bool	checkChecksum (size_t blkno, const unsigned char *buf, size_t bufl) const

bool	createDigest (Digest &digest) const

bool	verifyDigest (size_t blkno, Digest &digest) const

bool	haveChecksum (size_t blkno) const

void	setRsum (size_t blkno, int rsl, unsigned int rs, size_t rspad=0)
	set / verify the (weak) rolling checksum over a single block More...

bool	checkRsum (size_t blkno, const unsigned char *buf, size_t bufl) const

unsigned int	updateRsum (unsigned int rs, const char *bytes, size_t len) const

bool	verifyRsum (size_t blkno, unsigned int rs) const

bool	haveRsum (size_t blkno) const

void	reuseBlocks (FILE *wfp, std::string filename)
	scan a file for blocks from our blocklist. More...

std::string	asString () const
	return block list as string More...

Private Member Functions
void	writeBlock (size_t blkno, FILE fp, const unsigned char buf, size_t bufl, size_t start, std::vector< bool > &found) const

bool	checkChecksumRotated (size_t blkno, const unsigned char *buf, size_t bufl, size_t start) const

Private Attributes
off_t	filesize

std::string	fsumtype

std::vector< unsigned char >	fsum

bool	haveblocks

std::vector< MediaBlock >	blocks

std::string	chksumtype

int	chksumlen

size_t	chksumpad

std::vector< unsigned char >	chksums

std::string	rsumtype

int	rsumlen

size_t	rsumpad

std::vector< unsigned int >	rsums

Detailed Description

Definition at line 35 of file MediaBlockList.h.

Constructor & Destructor Documentation

zypp::media::MediaBlockList::MediaBlockList ( off_t filesize = off_t(-1) )

Definition at line 33 of file MediaBlockList.cc.

Member Function Documentation

bool zypp::media::MediaBlockList::haveBlocks ( ) const

inline

do we have a blocklist describing the file? set to true when addBlock() is called

Definition at line 43 of file MediaBlockList.h.

size_t zypp::media::MediaBlockList::addBlock	(	off_t	off,
		size_t	size
	)

add a block with offset off and size size to the block list.

Note that blocks must be ordered and must not overlap. returns the block number.

Definition at line 44 of file MediaBlockList.cc.

MediaBlock zypp::media::MediaBlockList::getBlock ( size_t blkno ) const

inline

return the offset/size of a block with number blkno

Definition at line 56 of file MediaBlockList.h.

size_t zypp::media::MediaBlockList::numBlocks ( ) const

inline

return the number of blocks in the blocklist

Definition at line 62 of file MediaBlockList.h.

void zypp::media::MediaBlockList::setFilesize ( off_t newfilesize = off_t(-1) )

inline

set / return the size of the whole file

Definition at line 69 of file MediaBlockList.h.

off_t zypp::media::MediaBlockList::getFilesize ( ) const

inline

Definition at line 72 of file MediaBlockList.h.

bool zypp::media::MediaBlockList::haveFilesize ( ) const

inline

Definition at line 75 of file MediaBlockList.h.

void zypp::media::MediaBlockList::setFileChecksum	(	std::string	ctype,
		int	cl,
		unsigned char *	c
	)

set / verify the checksum over the whole file

Definition at line 52 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::createFileDigest ( Digest & digest ) const

Definition at line 62 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::verifyFileDigest ( Digest & digest ) const

Definition at line 68 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::haveFileChecksum ( ) const

inline

Definition at line 85 of file MediaBlockList.h.

void zypp::media::MediaBlockList::setChecksum	(	size_t	blkno,
		std::string	cstype,
		int	csl,
		unsigned char *	cs,
		size_t	cspad = `0`
	)

set / verify the (strong) checksum over a single block

Definition at line 79 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::checkChecksum	(	size_t	blkno,
		const unsigned char *	buf,
		size_t	bufl
	)		const

Definition at line 197 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::createDigest ( Digest & digest ) const

Definition at line 115 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::verifyDigest	(	size_t	blkno,
		Digest &	digest
	)		const

Definition at line 121 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::haveChecksum ( size_t blkno ) const

inline

Definition at line 96 of file MediaBlockList.h.

void zypp::media::MediaBlockList::setRsum	(	size_t	blkno,
		int	rsl,
		unsigned int	rs,
		size_t	rspad = `0`
	)

set / verify the (weak) rolling checksum over a single block

Definition at line 98 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::checkRsum	(	size_t	blkno,
		const unsigned char *	buf,
		size_t	bufl
	)		const

Definition at line 188 of file MediaBlockList.cc.

unsigned int zypp::media::MediaBlockList::updateRsum	(	unsigned int	rs,
		const char *	bytes,
		size_t	len
	)		const

Definition at line 141 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::verifyRsum	(	size_t	blkno,
		unsigned int	rs
	)		const

Definition at line 158 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::haveRsum ( size_t blkno ) const

inline

Definition at line 107 of file MediaBlockList.h.

void zypp::media::MediaBlockList::reuseBlocks	(	FILE *	wfp,
		std::string	filename
	)

scan a file for blocks from our blocklist.

if we find a suitable block, it is removed from the list

Definition at line 276 of file MediaBlockList.cc.

std::string zypp::media::MediaBlockList::asString ( ) const

return block list as string

Definition at line 489 of file MediaBlockList.cc.

void zypp::media::MediaBlockList::writeBlock	(	size_t	blkno,
		FILE *	fp,
		const unsigned char *	buf,
		size_t	bufl,
		size_t	start,
		std::vector< bool > &	found
	)		const

private

Definition at line 229 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::checkChecksumRotated	(	size_t	blkno,
		const unsigned char *	buf,
		size_t	bufl,
		size_t	start
	)		const

private

Definition at line 210 of file MediaBlockList.cc.

Member Data Documentation

off_t zypp::media::MediaBlockList::filesize

private

Definition at line 126 of file MediaBlockList.h.

std::string zypp::media::MediaBlockList::fsumtype

private

Definition at line 127 of file MediaBlockList.h.

std::vector<unsigned char> zypp::media::MediaBlockList::fsum

private

Definition at line 128 of file MediaBlockList.h.

bool zypp::media::MediaBlockList::haveblocks

private

Definition at line 130 of file MediaBlockList.h.

std::vector<MediaBlock> zypp::media::MediaBlockList::blocks

private

Definition at line 131 of file MediaBlockList.h.

std::string zypp::media::MediaBlockList::chksumtype

private

Definition at line 133 of file MediaBlockList.h.

int zypp::media::MediaBlockList::chksumlen

private

Definition at line 134 of file MediaBlockList.h.

size_t zypp::media::MediaBlockList::chksumpad

private

Definition at line 135 of file MediaBlockList.h.

std::vector<unsigned char> zypp::media::MediaBlockList::chksums

private

Definition at line 136 of file MediaBlockList.h.

std::string zypp::media::MediaBlockList::rsumtype

private

Definition at line 138 of file MediaBlockList.h.

int zypp::media::MediaBlockList::rsumlen

private

Definition at line 139 of file MediaBlockList.h.

size_t zypp::media::MediaBlockList::rsumpad

private

Definition at line 140 of file MediaBlockList.h.

std::vector<unsigned int> zypp::media::MediaBlockList::rsums

private

Definition at line 141 of file MediaBlockList.h.

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

zypp/media/MediaBlockList.h
zypp/media/MediaBlockList.cc

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation