1 /* operational.c - bdb backend operational attributes function */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2010 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
21 #include <ac/string.h>
22 #include <ac/socket.h>
28 * sets *hasSubordinates to LDAP_COMPARE_TRUE/LDAP_COMPARE_FALSE
29 * if the entry has children or not.
35 int *hasSubordinates )
37 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
38 struct bdb_op_info *opinfo;
45 /* NOTE: this should never happen, but it actually happens
46 * when using back-relay; until we find a better way to
47 * preserve entry's private information while rewriting it,
48 * let's disable the hasSubordinate feature for back-relay.
50 if ( BEI( e ) == NULL ) {
54 /* Check for a txn in a parent op, otherwise use reader txn */
55 LDAP_SLIST_FOREACH( oex, &op->o_extra, oe_next ) {
56 if ( oex->oe_key == bdb )
59 opinfo = (struct bdb_op_info *) oex;
60 if ( opinfo && opinfo->boi_txn ) {
61 rtxn = opinfo->boi_txn;
63 rc = bdb_reader_get(op, bdb->bi_dbenv, &rtxn);
64 if ( rc ) return LDAP_OTHER;
68 /* FIXME: we can no longer assume the entry's e_private
69 * field is correctly populated; so we need to reacquire
70 * it with reader lock */
71 rc = bdb_cache_children( op, rtxn, e );
74 case DB_LOCK_DEADLOCK:
75 case DB_LOCK_NOTGRANTED:
79 *hasSubordinates = LDAP_COMPARE_TRUE;
83 *hasSubordinates = LDAP_COMPARE_FALSE;
88 Debug(LDAP_DEBUG_ARGS,
89 "<=- " LDAP_XSTRING(bdb_hasSubordinates)
90 ": has_children failed: %s (%d)\n",
91 db_strerror(rc), rc, 0 );
99 * sets the supported operational attributes (if required)
108 assert( rs->sr_entry != NULL );
110 for ( ap = &rs->sr_operational_attrs; *ap; ap = &(*ap)->a_next )
113 if ( SLAP_OPATTRS( rs->sr_attr_flags ) ||
114 ad_inlist( slap_schema.si_ad_hasSubordinates, rs->sr_attrs ) )
116 int hasSubordinates, rc;
118 rc = bdb_hasSubordinates( op, rs->sr_entry, &hasSubordinates );
119 if ( rc == LDAP_SUCCESS ) {
120 *ap = slap_operational_hasSubordinate( hasSubordinates == LDAP_COMPARE_TRUE );
121 assert( *ap != NULL );