#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
size_t	addBlock (off_t off, size_t size)
	add a block with offset off and size size to the block list.
MediaBlock	getBlock (size_t blkno) const
	return the offset/size of a block with number blkno
size_t	numBlocks () const
	return the number of blocks in the blocklist
void	setFilesize (off_t newfilesize=off_t(-1))
	set / return the size of the whole file
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
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
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
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.
std::string	asString () const
	return block list as string
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 31 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 39 of file MediaBlockList.h.

References haveblocks.

Referenced by zypp::media::MediaMultiCurl::multifetch().

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.

Referenced by zypp::media::MetaLinkParser::getBlockList().

MediaBlock zypp::media::MediaBlockList::getBlock ( size_t blkno ) const [inline]

return the offset/size of a block with number blkno

Definition at line 52 of file MediaBlockList.h.

References blocks.

Referenced by zypp::media::multifetchrequest::multifetchrequest(), and zypp::media::multifetchworker::nextjob().

size_t zypp::media::MediaBlockList::numBlocks ( ) const [inline]

return the number of blocks in the blocklist

Definition at line 58 of file MediaBlockList.h.

References blocks.

Referenced by zypp::media::MediaMultiCurl::multifetch(), zypp::media::multifetchrequest::multifetchrequest(), and zypp::media::multifetchworker::nextjob().

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

set / return the size of the whole file

Definition at line 65 of file MediaBlockList.h.

References filesize.

off_t zypp::media::MediaBlockList::getFilesize ( ) const [inline]

Definition at line 68 of file MediaBlockList.h.

References filesize.

Referenced by zypp::media::MediaMultiCurl::multifetch().

bool zypp::media::MediaBlockList::haveFilesize ( ) const [inline]

Definition at line 71 of file MediaBlockList.h.

References filesize.

Referenced by zypp::media::MediaMultiCurl::multifetch().

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

set / verify the checksum over the whole file

Definition at line 54 of file MediaBlockList.cc.

Referenced by zypp::media::MetaLinkParser::getBlockList().

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

Definition at line 64 of file MediaBlockList.cc.

References zypp::Digest::create().

Referenced by zypp::media::MediaMultiCurl::checkFileDigest().

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

Definition at line 70 of file MediaBlockList.cc.

References zypp::Digest::digestVector().

Referenced by zypp::media::MediaMultiCurl::checkFileDigest().

bool zypp::media::MediaBlockList::haveFileChecksum ( ) const [inline]

Definition at line 81 of file MediaBlockList.h.

References fsum, and fsumtype.

Referenced by zypp::media::MediaMultiCurl::checkFileDigest().

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 81 of file MediaBlockList.cc.

Referenced by zypp::media::MetaLinkParser::getBlockList().

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

Definition at line 199 of file MediaBlockList.cc.

References zypp::Digest::update().

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

Definition at line 117 of file MediaBlockList.cc.

References zypp::Digest::create().

Referenced by zypp::media::multifetchworker::recheckChecksum(), and zypp::media::multifetchworker::run().

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

Definition at line 123 of file MediaBlockList.cc.

References zypp::Digest::digestVector(), and zypp::Digest::update().

Referenced by zypp::media::multifetchworker::checkChecksum(), and zypp::media::multifetchworker::recheckChecksum().

bool zypp::media::MediaBlockList::haveChecksum ( size_t blkno ) const [inline]

Definition at line 92 of file MediaBlockList.h.

References chksumlen, and chksums.

Referenced by zypp::media::MediaMultiCurl::doGetFileCopy(), zypp::media::multifetchworker::multifetchworker(), and zypp::media::multifetchworker::nextjob().

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 100 of file MediaBlockList.cc.

Referenced by zypp::media::MetaLinkParser::getBlockList().

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

Definition at line 190 of file MediaBlockList.cc.

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

Definition at line 143 of file MediaBlockList.cc.

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

Definition at line 160 of file MediaBlockList.cc.

bool zypp::media::MediaBlockList::haveRsum ( size_t blkno ) const [inline]

Definition at line 103 of file MediaBlockList.h.

References rsumlen, and rsums.

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 278 of file MediaBlockList.cc.

References zypp::media::fetchnext().

Referenced by zypp::media::MediaMultiCurl::doGetFileCopy().

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

return block list as string

Definition at line 491 of file MediaBlockList.cc.

References zypp::str::form().

Referenced by zypp::media::operator<<().

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]`