dbif.c File Reference

#include <arpa/inet.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#include <db.h>
#include <atalk/cnid.h>
#include <atalk/errchk.h>
#include <atalk/logger.h>
#include <atalk/util.h>
#include "db_param.h"
#include "dbif.h"
#include "pack.h"

Macros
#define	DB_ERRLOGFILE   "db_errlog"
#define	UNINTIALIZED_DB   UINT32_MAX

Functions
static int	dbif_stamp (DBD *dbd, void *buffer, int size)
static int	dbif_init_rootinfo (DBD *dbd, int version)
static int	dbif_getversion (DBD *dbd, uint32_t *version)
static int	dbif_setversion (DBD *dbd, uint32_t version)
static int	dbif_upgrade (DBD *dbd)
static int	dbif_openlog (DBD *dbd)
static int	dbif_logautorem (DBD *dbd)
DBD *	dbif_init (const char *envhome, const char *filename)
int	dbif_env_open (DBD *dbd, struct db_param *dbp, uint32_t dbenv_oflags)
int	dbif_open (DBD *dbd, struct db_param *dbp, int reindex)
static int	dbif_closedb (DBD *dbd)
int	dbif_close (DBD *dbd)
int	dbif_env_remove (const char *path)
int	dbif_get (DBD *dbd, const int dbi, DBT *key, DBT *val, uint32_t flags)
int	dbif_put (DBD *dbd, const int dbi, DBT *key, DBT *val, uint32_t flags)
int	dbif_del (DBD *dbd, const int dbi, DBT *key, uint32_t flags)
int	dbif_search (DBD *dbd, DBT *key, char *resbuf)
int	dbif_txn_begin (DBD *dbd)
int	dbif_txn_commit (DBD *dbd)
int	dbif_txn_abort (DBD *dbd)
int	dbif_txn_close (DBD *dbd, int ret)
int	dbif_txn_checkpoint (DBD *dbd, uint32_t kbyte, uint32_t min, uint32_t flags)
int	dbif_count (DBD *dbd, const int dbi, uint32_t *count)
int	dbif_copy_rootinfokey (DBD *srcdbd, DBD *destdbd)
int	dbif_dump (DBD *dbd, int dumpindexes)
int	dbif_idwalk (DBD *dbd, cnid_t *cnid, int close)

Macro Definition Documentation

DB_ERRLOGFILE

#define DB_ERRLOGFILE   "db_errlog"

UNINTIALIZED_DB

#define UNINTIALIZED_DB   UINT32_MAX

Upgrade CNID database versions, initialize rootinfo key as as necessary in dbif_setversion()

For now this does nothing, as upgrading from ver. 0 to 1 is done in dbif_open

Function Documentation

dbif_close()

int dbif_close

(

DBD *

dbd

)

dbif_closedb()

int dbif_closedb ( DBD * dbd )

static

dbif_copy_rootinfokey()

int dbif_copy_rootinfokey	(	DBD *	srcdbd,
		DBD *	destdbd )

dbif_count()

int dbif_count	(	DBD *	dbd,
		const int	dbi,
		uint32_t *	count )

dbif_del()

int dbif_del	(	DBD *	dbd,
		const int	dbi,
		DBT *	key,
		uint32_t	flags )

dbif_dump()

int dbif_dump	(	DBD *	dbd,
		int	dumpindexes )

dbif_env_open()

int dbif_env_open	(	DBD *	dbd,
		struct db_param *	dbp,
		uint32_t	dbenv_oflags )

dbif_env_remove()

int dbif_env_remove

(

const char *

path

)

dbif_get()

int dbif_get	(	DBD *	dbd,
		const int	dbi,
		DBT *	key,
		DBT *	val,
		uint32_t	flags )

dbif_getversion()

int dbif_getversion ( DBD * dbd, uint32_t * version )

static

Return CNID database version number

Returns version in *version

Returns

-1 on error, 0 if theres no rootinfo key yet, 1 if *version is returned

dbif_idwalk()

int dbif_idwalk	(	DBD *	dbd,
		cnid_t *	cnid,
		int	close )

dbif_init()

DBD * dbif_init	(	const char *	envhome,
		const char *	filename )

dbif_init_rootinfo()

int dbif_init_rootinfo ( DBD * dbd, int version )

static

Inititialize rootinfo key (which has CNID 0 as key)

This also "stamps" the database, which means storing st.st_ctime of the "cnid2.db" file in the rootinfo data at the DEV offset

Parameters

dbd	(rw) database handle
version	(r) database version number

Returns

-1 on error, 0 on success

dbif_logautorem()

int dbif_logautorem ( DBD * dbd )

static

dbif_open()

int dbif_open	(	DBD *	dbd,
		struct db_param *	dbp,
		int	reindex )

dbif_openlog()

int dbif_openlog ( DBD * dbd )

static

dbif_put()

int dbif_put	(	DBD *	dbd,
		const int	dbi,
		DBT *	key,
		DBT *	val,
		uint32_t	flags )

dbif_search()

int dbif_search	(	DBD *	dbd,
		DBT *	key,
		char *	resbuf )

Search the database by name

Parameters

dbd	(r) database handle
key	(r) key to search for, must be initialized with name to search for (key->data, key->size)
resbuf	(w) buffer for search results CNIDs, maxsize is assumed to be DBD_MAX_SRCH_RSLTS * sizefof(cnid_t)

Returns

-1 on error, 0 when nothing found, else the number of matches

dbif_setversion()

int dbif_setversion ( DBD * dbd, uint32_t version )

static

Set CNID database version number

Initializes rootinfo key as neccessary

Returns

-1 on error, 0 on success

dbif_stamp()

int dbif_stamp ( DBD * dbd, void * buffer, int size )

static

Get the db stamp which is the st_ctime of the file "cnid2.db" and store it in buffer

dbif_txn_abort()

int dbif_txn_abort

(

DBD *

dbd

)

dbif_txn_begin()

int dbif_txn_begin

(

DBD *

dbd

)

dbif_txn_checkpoint()

int dbif_txn_checkpoint	(	DBD *	dbd,
		uint32_t	kbyte,
		uint32_t	min,
		uint32_t	flags )

dbif_txn_close()

int dbif_txn_close	(	DBD *	dbd,
		int	ret )

dbif_txn_commit()

int dbif_txn_commit

(

DBD *

dbd

)

dbif_upgrade()

int dbif_upgrade ( DBD * dbd )

static