C++ (Cpp) BDB_IDL_N Examples

Example #1

File: key.c Project: jaredmcneill/netbsd-src

/* read a key */
int
bdb_key_read(
	Backend	*be,
	DB *db,
	DB_TXN *txn,
	struct berval *k,
	ID *ids,
	DBC **saved_cursor,
	int get_flag
)
{
	int rc;
	DBT key;

	Debug( LDAP_DEBUG_TRACE, "=> key_read\n", 0, 0, 0 );

	DBTzero( &key );
	bv2DBT(k,&key);
	key.ulen = key.size;
	key.flags = DB_DBT_USERMEM;

	rc = bdb_idl_fetch_key( be, db, txn, &key, ids, saved_cursor, get_flag );

	if( rc != LDAP_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE, "<= bdb_index_read: failed (%d)\n",
			rc, 0, 0 );
	} else {
		Debug( LDAP_DEBUG_TRACE, "<= bdb_index_read %ld candidates\n",
			(long) BDB_IDL_N(ids), 0, 0 );
	}

	return rc;
}

Example #2

File: filterindex.c Project: dago/openldap

static int
inequality_candidates(
	Operation *op,
	DB_TXN *rtxn,
	AttributeAssertion *ava,
	ID *ids,
	ID *tmp,
	int gtorlt )
{
	struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
	DB	*db;
	int rc;
	slap_mask_t mask;
	struct berval prefix = {0, NULL};
	struct berval *keys = NULL;
	MatchingRule *mr;
	DBC * cursor = NULL;

	Debug( LDAP_DEBUG_TRACE, "=> bdb_inequality_candidates (%s)\n",
			ava->aa_desc->ad_cname.bv_val, 0, 0 );

	BDB_IDL_ALL( bdb, ids );

	rc = bdb_index_param( op->o_bd, ava->aa_desc, LDAP_FILTER_EQUALITY,
		&db, &mask, &prefix );

	if ( rc == LDAP_INAPPROPRIATE_MATCHING ) {
		Debug( LDAP_DEBUG_ANY,
			"<= bdb_inequality_candidates: (%s) not indexed\n", 
			ava->aa_desc->ad_cname.bv_val, 0, 0 );
		return 0;
	}

	if( rc != LDAP_SUCCESS ) {
		Debug( LDAP_DEBUG_ANY,
			"<= bdb_inequality_candidates: (%s) "
			"index_param failed (%d)\n",
			ava->aa_desc->ad_cname.bv_val, rc, 0 );
		return 0;
	}

	mr = ava->aa_desc->ad_type->sat_equality;
	if( !mr ) {
		return 0;
	}

	if( !mr->smr_filter ) {
		return 0;
	}

	rc = (mr->smr_filter)(
		LDAP_FILTER_EQUALITY,
		mask,
		ava->aa_desc->ad_type->sat_syntax,
		mr,
		&prefix,
		&ava->aa_value,
		&keys, op->o_tmpmemctx );

	if( rc != LDAP_SUCCESS ) {
		Debug( LDAP_DEBUG_TRACE,
			"<= bdb_inequality_candidates: (%s, %s) "
			"MR filter failed (%d)\n",
			prefix.bv_val, ava->aa_desc->ad_cname.bv_val, rc );
		return 0;
	}

	if( keys == NULL ) {
		Debug( LDAP_DEBUG_TRACE,
			"<= bdb_inequality_candidates: (%s) no keys\n",
			ava->aa_desc->ad_cname.bv_val, 0, 0 );
		return 0;
	}

	BDB_IDL_ZERO( ids );
	while(1) {
		rc = bdb_key_read( op->o_bd, db, rtxn, &keys[0], tmp, &cursor, gtorlt );

		if( rc == DB_NOTFOUND ) {
			rc = 0;
			break;
		} else if( rc != LDAP_SUCCESS ) {
			Debug( LDAP_DEBUG_TRACE,
			       "<= bdb_inequality_candidates: (%s) "
			       "key read failed (%d)\n",
			       ava->aa_desc->ad_cname.bv_val, rc, 0 );
			break;
		}

		if( BDB_IDL_IS_ZERO( tmp ) ) {
			Debug( LDAP_DEBUG_TRACE,
			       "<= bdb_inequality_candidates: (%s) NULL\n", 
			       ava->aa_desc->ad_cname.bv_val, 0, 0 );
			break;
		}

		bdb_idl_union( ids, tmp );

		if( op->ors_limit && op->ors_limit->lms_s_unchecked != -1 &&
			BDB_IDL_N( ids ) >= (unsigned) op->ors_limit->lms_s_unchecked ) {
			cursor->c_close( cursor );
			break;
		}
	}
	ber_bvarray_free_x( keys, op->o_tmpmemctx );

	Debug( LDAP_DEBUG_TRACE,
		"<= bdb_inequality_candidates: id=%ld, first=%ld, last=%ld\n",
		(long) ids[0],
		(long) BDB_IDL_FIRST(ids),
		(long) BDB_IDL_LAST(ids) );
	return( rc );
}