DBI.


Files
file	rpmlib.h
file	rpmdb.c
file	rpmdb.h
	Access RPM indices using Berkeley DB interface(s).
Data Structures
struct	dbiHStats_s
	Hash database statistics. More...
struct	dbiBStats_s
	B-tree database statistics. More...
struct	_dbiIndexItem
	A single item from an index database (i.e. More...
struct	_dbiIndexSet
	Items retrieved from the index database. More...
struct	_dbiVec
	Private methods for accessing an index database. More...
struct	_dbiIndex
	Describes an index database (implemented on Berkeley db3 functionality). More...
Functions
dbiIndex	dbiOpen (rpmdb db, int rpmtag, unsigned int flags)
	Return handle for an index database.
int	dbiCopen (dbiIndex dbi, void **dbcp, unsigned int flags)
int	dbiCclose (dbiIndex dbi, void *dbcursor, unsigned int flags)
int	dbiDel (dbiIndex dbi, void dbcursor, const void keyp, size_t keylen, unsigned int flags)
	Delete (key,data) pair(s) from index database.
int	dbiGet (dbiIndex dbi, void dbcursor, void keypp, size_t keylenp, void *datapp, size_t datalenp, unsigned int flags)
	Retrieve (key,data) pair from index database.
int	dbiPut (dbiIndex dbi, void dbcursor, const void keyp, size_t keylen, const void *datap, size_t datalen, unsigned int flags)
	Store (key,data) pair in index database.
int	dbiCount (dbiIndex dbi, void dbcursor, unsigned int countp, unsigned int flags)
	Retrieve count of (possible) duplicate items.
int	dbiVerify (dbiIndex dbi, unsigned int flags)
	Verify (and close) index database.
int	dbiClose (dbiIndex dbi, unsigned int flags)
	Close index database.
int	dbiSync (dbiIndex dbi, unsigned int flags)
	Flush pending operations to disk.
int	dbiByteSwapped (dbiIndex dbi)
	Is database byte swapped?
dbiIndexSet	dbiFreeIndexSet (dbiIndexSet set)
	Destroy set of index database items.
unsigned int	dbiIndexSetCount (dbiIndexSet set)
	Count items in index database set.
unsigned int	dbiIndexRecordOffset (dbiIndexSet set, int recno)
	Return record offset of header from element in index database set.
unsigned int	dbiIndexRecordFileNumber (dbiIndexSet set, int recno)
	Return file index from element in index database set.
Variables
int(*	_dbiVec::open )(rpmdb rpmdb, int rpmtag, dbiIndex *dbip)
	Return handle for an index database.
int(*	_dbiVec::close )(dbiIndex dbi, unsigned int flags)
	Close index database, and destroy database handle.
int(*	_dbiVec::sync )(dbiIndex dbi, unsigned int flags)
	Flush pending operations to disk.
int(*	_dbiVec::copen )(dbiIndex dbi, void **dbcp, unsigned int flags)
	Open database cursor.
int(*	_dbiVec::cclose )(dbiIndex dbi, void *dbcursor, unsigned int flags)
	Close database cursor.
int(*	_dbiVec::cdel )(dbiIndex dbi, void dbcursor, const void keyp, size_t keylen, unsigned int flags)
	Delete (key,data) pair(s) using db->del or dbcursor->c_del.
int(*	_dbiVec::cget )(dbiIndex dbi, void dbcursor, void keypp, size_t keylenp, void *datapp, size_t datalenp, unsigned int flags)
	Retrieve (key,data) pair using db->get or dbcursor->c_get.
int(*	_dbiVec::cput )(dbiIndex dbi, void dbcursor, const void keyp, size_t keylen, const void *datap, size_t datalen, unsigned int flags)
	Store (key,data) pair using db->put or dbcursor->c_put.
int(*	_dbiVec::ccount )(dbiIndex dbi, void dbcursor, unsigned int countp, unsigned int flags)
	Retrieve count of (possible) duplicate items using dbcursor->c_count.
int(*	_dbiVec::byteswapped )(dbiIndex dbi)
	Is database byte swapped?
int(*	_dbiVec::stat )(dbiIndex dbi, unsigned int flags)
	Save statistics in database handle.

Function Documentation

int dbiByteSwapped ( dbiIndex dbi )

Is database byte swapped?

Parameters:

dbi

index database handle

Returns:: 0 no

Definition at line 183 of file rpmdb.c.

int dbiCclose	(	dbiIndex	dbi,
		void *	dbcursor,
		unsigned int	flags
	)

Parameters:

	dbi	index database handle
	flags	(unused)

Definition at line 195 of file rpmdb.c.

int dbiClose	(	dbiIndex	dbi,
		unsigned int	flags
	)

Close index database.

Parameters:

	dbi	index database handle
	flags	(unused)

Returns:: 0 on success

Definition at line 337 of file rpmdb.c.

int dbiCopen	(	dbiIndex	dbi,
		void **	dbcp,
		unsigned int	flags
	)

Parameters:

	dbi	index database handle
	flags	DBI_WRITECURSOR, DBI_ITERATOR or 0

Definition at line 188 of file rpmdb.c.

int dbiCount	(	dbiIndex	dbi,
		void *	dbcursor,
		unsigned int *	countp,
		unsigned int	flags
	)

Retrieve count of (possible) duplicate items.

Parameters:

	dbi	index database handle
	dbcursor	database cursor
	countp	address of count
	flags	(unused)

Returns:: 0 on success

Definition at line 311 of file rpmdb.c.

int dbiDel	(	dbiIndex	dbi,
		void *	dbcursor,
		const void *	keyp,
		size_t	keylen,
		unsigned int	flags
	)

Delete (key,data) pair(s) from index database.

Parameters:

	dbi	index database handle
	keyp	key data
	keylen	key data length
	flags	(unused)

Returns:: 0 on success

Definition at line 211 of file rpmdb.c.

dbiIndexSet dbiFreeIndexSet ( dbiIndexSet set )

Destroy set of index database items.

Parameters:

set

set of index database items

Returns:: NULL always

Definition at line 748 of file rpmdb.c.

int dbiGet	(	dbiIndex	dbi,
		void *	dbcursor,
		void **	keypp,
		size_t *	keylenp,
		void **	datapp,
		size_t *	datalenp,
		unsigned int	flags
	)

Retrieve (key,data) pair from index database.

Parameters:

	dbi	index database handle
	keypp	address of key data
	keylenp	address of key data length
	datapp	address of data pointer
	datalenp	address of data length
	flags	(unused)

Returns:: 0 on success

Definition at line 229 of file rpmdb.c.

unsigned int dbiIndexRecordFileNumber	(	dbiIndexSet	set,
		int	recno
	)

Return file index from element in index database set.

Parameters:

	set	set of index database items
	recno	index of item in set

Returns:: file index

Definition at line 743 of file rpmdb.c.

unsigned int dbiIndexRecordOffset	(	dbiIndexSet	set,
		int	recno
	)

Return record offset of header from element in index database set.

Parameters:

	set	set of index database items
	recno	index of item in set

Returns:: record offset of header

Definition at line 738 of file rpmdb.c.

unsigned int dbiIndexSetCount ( dbiIndexSet set )

Count items in index database set.

Parameters:

set

set of index database items

Returns:: number of items

Definition at line 733 of file rpmdb.c.

dbiIndex dbiOpen	(	rpmdb	db,
		int	rpmtag,
		unsigned int	flags
	)

Return handle for an index database.

Parameters:

	db	rpm database
	rpmtag	rpm tag
	flags	(unused)

Returns:: index database handle

Definition at line 343 of file rpmdb.c.

int dbiPut	(	dbiIndex	dbi,
		void *	dbcursor,
		const void *	keyp,
		size_t	keylen,
		const void *	datap,
		size_t	datalen,
		unsigned int	flags
	)

Store (key,data) pair in index database.

Parameters:

	dbi	index database handle
	keyp	key data
	keylen	key data length
	datap	data pointer
	datalen	data length
	flags	(unused)

Returns:: 0 on success

Definition at line 271 of file rpmdb.c.

int dbiSync	(	dbiIndex	dbi,
		unsigned int	flags
	)

Flush pending operations to disk.

Parameters:

	dbi	index database handle
	flags	(unused)

Returns:: 0 on success

Definition at line 176 of file rpmdb.c.

int dbiVerify	(	dbiIndex	dbi,
		unsigned int	flags
	)

Verify (and close) index database.

Parameters:

	dbi	index database handle
	flags	(unused)

Returns:: 0 on success

Definition at line 322 of file rpmdb.c.

Variable Documentation

int(* _dbiVec::byteswapped)(dbiIndex dbi) [inherited]

Is database byte swapped?

Parameters:

dbi

index database handle

Returns:: 0 no

int(* _dbiVec::cclose)(dbiIndex dbi,void *dbcursor, unsigned int flags) [inherited]

Close database cursor.

Parameters:

	dbi	index database handle
	dbcursor	database cursor
	flags	(unused)

int(* _dbiVec::ccount)(dbiIndex dbi, void *dbcursor,unsigned int *countp, unsigned int flags) [inherited]

Retrieve count of (possible) duplicate items using dbcursor->c_count.

Parameters:

	dbi	index database handle
	dbcursor	database cursor
	countp	address of count
	flags	(unused)

Returns:: 0 on success

int(* _dbiVec::cdel)(dbiIndex dbi, void *dbcursor, const void *keyp, size_t keylen, unsigned int flags) [inherited]

Delete (key,data) pair(s) using db->del or dbcursor->c_del.

Parameters:

	dbi	index database handle
	dbcursor	database cursor
	keyp	key data
	keylen	key data length
	flags	(unused)

Returns:: 0 on success

int(* _dbiVec::cget)(dbiIndex dbi, void *dbcursor,void **keypp,size_t *keylenp,void **datapp,size_t *datalenp, unsigned int flags) [inherited]

Retrieve (key,data) pair using db->get or dbcursor->c_get.

Parameters:

	dbi	index database handle
	dbcursor	database cursor
	keypp	address of key data
	keylenp	address of key data length
	datapp	address of data pointer
	datalenp	address of data length
	flags	(unused)

Returns:: 0 on success

int(* _dbiVec::close)(dbiIndex dbi, unsigned int flags) [inherited]

Close index database, and destroy database handle.

Parameters:

	dbi	index database handle
	flags	(unused)

Returns:: 0 on success

int(* _dbiVec::copen)(dbiIndex dbi,void **dbcp, unsigned int flags) [inherited]

Open database cursor.

Parameters:

	dbi	index database handle
	dbcp	address of database cursor
	flags	(unused)

int(* _dbiVec::cput)(dbiIndex dbi, void *dbcursor, const void *keyp, size_t keylen, const void *datap, size_t datalen, unsigned int flags) [inherited]

Store (key,data) pair using db->put or dbcursor->c_put.

Parameters:

	dbi	index database handle
	dbcursor	database cursor
	keyp	key data
	keylen	key data length
	datap	data pointer
	datalen	data length
	flags	(unused)

Returns:: 0 on success

int(* _dbiVec::open)(rpmdb rpmdb, int rpmtag,dbiIndex *dbip) [inherited]

Return handle for an index database.

Parameters:

	rpmdb	rpm database
	rpmtag	rpm tag

Returns:: 0 on success

int(* _dbiVec::stat)(dbiIndex dbi, unsigned int flags) [inherited]

Save statistics in database handle.

Parameters:

	dbi	index database handle
	flags	retrieve statistics that don't require traversal?

Returns:: 0 on success

int(* _dbiVec::sync)(dbiIndex dbi, unsigned int flags) [inherited]

Flush pending operations to disk.

Parameters:

	dbi	index database handle
	flags	(unused)

Returns:: 0 on success

DBI.

Files

Data Structures

Functions

Variables

Function Documentation

Variable Documentation