/* $OpenLDAP$ */
/*
 * Copyright 2000-2002 The OpenLDAP Foundation, All Rights Reserved.
 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
 */

#ifndef _PROTO_BDB_H
#define _PROTO_BDB_H

LDAP_BEGIN_DECL

/*
 * alias.c
 */
Entry *bdb_deref_internal_r LDAP_P((
	BackendDB *be,
	Entry *e,
	struct berval *dn,
	int *err,
	Entry **matched,
	const char **text ));

#define deref_entry_r( be, e, err, matched, text ) \
	bdb_deref_internal_r( be, e, NULL, err, matched, text )
#define deref_dn_r( be, dn, err, matched, text ) \
	bdb_deref_internal_r( be, NULL, dn, err, matched, text)

/*
 * attr.c
 */

void bdb_attr_mask( struct bdb_info *bdb,
	AttributeDescription *desc,
	slap_mask_t *indexmask );

int bdb_attr_index_config LDAP_P(( struct bdb_info *bdb,
	const char *fname, int lineno,
	int argc, char **argv ));

void bdb_attr_index_destroy LDAP_P(( Avlnode *tree ));

/*
 * attribute.c
 */

BI_acl_attribute bdb_attribute;

/*
 * dbcache.c
 */
int
bdb_db_cache(
    Backend	*be,
    const char *name,
	DB **db );

/*
 * dn2entry.c
 */
int bdb_dn2entry_rw LDAP_P(( BackendDB *be, DB_TXN *tid,
	struct berval *dn, Entry **e, Entry **matched, int flags, int rw,
	u_int32_t locker, DB_LOCK *lock));
#define bdb_dn2entry_r(be, tid, dn, e, m, f, locker, lock) \
	bdb_dn2entry_rw((be), (tid), (dn), (e), (m), (f), 0, locker, lock)
#define bdb_dn2entry_w(be, tid, dn, e, m, f, locker, lock) \
	bdb_dn2entry_rw((be), (tid), (dn), (e), (m), (f), 1, locker, lock)

/*
 * dn2id.c
 */
int bdb_dn2id(
	BackendDB *be,
	DB_TXN *tid,
	struct berval *dn,
	ID *id,
	int flags );

int bdb_dn2id_matched(
	BackendDB *be,
	DB_TXN *tid,
	struct berval *dn,
	ID *id,
	ID *id2,
	int flags );

int bdb_dn2id_add(
	BackendDB *be,
	DB_TXN *tid,
	struct berval *pdn,
	Entry *e );

int bdb_dn2id_delete(
	BackendDB *be,
	DB_TXN *tid,
	char *pdn,
	Entry *e );

int bdb_dn2id_children(
	BackendDB *be,
	DB_TXN *tid,
	struct berval *dn,
	int flags );

int
bdb_dn2idl(
	BackendDB	*be,
	struct berval	*dn,
	int prefix,
	ID *ids );

/*
 * entry.c
 */
int bdb_entry_return( Entry *e );
BI_entry_release_rw bdb_entry_release;

/*
 * error.c
 */
void bdb_errcall( const char *pfx, char * msg );

/*
 * filterentry.c
 */
int bdb_filter_candidates(
	Backend	*be,
	Filter	*f,
	ID *ids,
	ID *tmp,
	ID *stack );

/*
 * group.c
 */

BI_acl_group bdb_group;

/*
 * id2entry.c
 */
int bdb_id2entry_add(
	BackendDB *be,
	DB_TXN *tid,
	Entry *e );

int bdb_id2entry_update(
	BackendDB *be,
	DB_TXN *tid,
	Entry *e );

int bdb_id2entry_delete(
	BackendDB *be,
	DB_TXN *tid,
	Entry *e);

int bdb_id2entry_rw(
	BackendDB *be,
	DB_TXN *tid,
	ID id,
	Entry **e,
	int rw,
	u_int32_t locker,
	DB_LOCK *lock );
#define bdb_id2entry_r(be, tid, id, e, locker, lock) \
	bdb_id2entry_rw((be), (tid), (id), (e), 0, locker, lock)
#define bdb_id2entry_w(be, tid, id, e, locker, lock) \
	bdb_id2entry_rw((be), (tid), (id), (e), 1, locker, lock)

void bdb_entry_free ( Entry *e );

/*
 * idl.c
 */
unsigned bdb_idl_search( ID *ids, ID id );

int bdb_bt_compare(
	DB *db,
	const DBT *a,
	const DBT *b );

int bdb_idl_fetch_key(
	BackendDB *be,
	DB *db,
	DB_TXN *txn,
	DBT *key,
	ID *ids );

int bdb_idl_insert_key(
	BackendDB *be,
	DB *db,
	DB_TXN *txn,
	DBT *key,
	ID id );

int bdb_idl_delete_key(
	BackendDB *be,
	DB *db,
	DB_TXN *txn,
	DBT *key,
	ID id );

#if 0
int
bdb_idl_notin(
    ID 	*a,
    ID 	*b,
	ID	*ids );
#endif

int
bdb_idl_intersection(
	ID *a,
	ID *b );

int
bdb_idl_union(
	ID *a,
	ID *b );

ID bdb_idl_first( ID *ids, ID *cursor );
ID bdb_idl_next( ID *ids, ID *cursor );


/*
 * index.c
 */
extern int
bdb_index_is_indexed LDAP_P((
	Backend *be,
	AttributeDescription *desc ));

extern int
bdb_index_param LDAP_P((
	Backend *be,
	AttributeDescription *desc,
	int ftype,
	DB **db,
	slap_mask_t *mask,
	struct berval *prefix ));

extern int
bdb_index_values LDAP_P((
	Backend *be,
	DB_TXN *txn,
	AttributeDescription *desc,
	BerVarray vals,
	ID id,
	int op ));

int bdb_index_entry LDAP_P(( Backend *be, DB_TXN *t,
	int r, Entry *e, Attribute *ap ));

#define bdb_index_entry_add(be,t,e,ap) \
	bdb_index_entry((be),(t),SLAP_INDEX_ADD_OP,(e),(ap))
#define bdb_index_entry_del(be,t,e,ap) \
	bdb_index_entry((be),(t),SLAP_INDEX_DELETE_OP,(e),(ap))

/*
 * init.c
 */
extern struct berval bdb_uuid;

/*
 * key.c
 */
extern int
bdb_key_read(
    Backend	*be,
	DB *db,
	DB_TXN *txn,
    struct berval *k,
	ID *ids );

extern int
bdb_key_change(
    Backend	 *be,
    DB *db,
	DB_TXN *txn,
    struct berval *k,
    ID id,
    int	op );
	
/*
 * nextid.c
 */
int bdb_next_id( BackendDB *be, DB_TXN *tid, ID *id );
int bdb_last_id( BackendDB *be, DB_TXN *tid );

/*
 * modify.c
 */
int bdb_modify_internal(
	BackendDB *be,
	Connection *conn,
	Operation *op,
	DB_TXN *tid,
	Modifications *modlist,
	Entry *e,
	const char **text,
	char *textbuf,
	size_t textlen );

/*
 * operational.c
 */
int
bdb_hasSubordinates(
	BackendDB	*be,
	Connection	*conn, 
	Operation	*op,
	Entry		*e,
	int		*hasSubordinates );

/*
 * passwd.c
 */
BI_op_extended bdb_exop_passwd;


/*
 * cache.c
 */

void bdb_cache_entry_commit( Entry *e );
void bdb_cache_return_entry_rw( DB_ENV *env, Cache *cache, Entry *e,
	int rw, DB_LOCK *lock );
#define bdb_cache_return_entry_r(env, c, e, l) \
	bdb_cache_return_entry_rw((env), (c), (e), 0, (l))
#define bdb_cache_return_entry_w(env, c, e, l) \
	bdb_cache_return_entry_rw((env), (c), (e), 1, (l))
void bdb_unlocked_cache_return_entry_rw( Cache *cache, Entry *e, int rw );
#define bdb_unlocked_cache_return_entry_r( c, e ) \
	bdb_unlocked_cache_return_entry_rw((c), (e), 0)
#define bdb_unlocked_cache_return_entry_w( c, e ) \
	bdb_unlocked_cache_return_entry_rw((c), (e), 1)
int bdb_cache_add_entry_rw(
	DB_ENV	*env,
	Cache   *cache,
	Entry   *e,
	int     rw,
	u_int32_t locker,
	DB_LOCK	*lock
);
int bdb_cache_update_entry(
       Cache   *cache,
       Entry   *e
);
ID bdb_cache_find_entry_ndn2id(
       Backend *be,
       Cache   *cache,
       struct berval   *ndn
);
Entry* bdb_cache_find_entry_id(
	DB_ENV		*env,
	Cache		*cache,
	ID		id,
	int		rw,
	u_int32_t	locker,
	DB_LOCK		*lock
);
int bdb_cache_delete_entry(
       Cache   *cache,
       Entry   *e
);
void bdb_cache_release_all( Cache *cache );

#ifdef BDB_REUSE_LOCKERS

int bdb_locker_id( Operation *op, DB_ENV *env, int *locker );

#endif

#ifdef HAVE_EBCDIC
char *ebcdic_dberror( int rc );

#define db_strerror(x)	ebcdic_dberror(x)
#endif

LDAP_END_DECL

#endif /* _PROTO_BDB_H */