/* dn2id.c - routines to deal with the dn2id index */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2004 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#ifndef BDB_MULTIPLE_SUFFIXES
}
- while( !be_issuffix( op->o_bd, &ptr )) {
+ while( !be_issuffix( op->o_bd, &ptr ))
#else
- for (;;) {
+ for (;;)
#endif
+ {
ptr.bv_val[-1] = DN_SUBTREE_PREFIX;
rc = bdb_idl_insert_key( op->o_bd, db, txn, &key, e->e_id );
DBT key;
struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
DB *db = bdb->bi_dn2id->bdi_db;
- int prefix = op->ors_scope == LDAP_SCOPE_SUBTREE ? DN_SUBTREE_PREFIX :
- DN_ONE_PREFIX;
+ int prefix = ( op->ors_scope == LDAP_SCOPE_ONELEVEL )
+ ? DN_ONE_PREFIX : DN_SUBTREE_PREFIX;
#ifdef NEW_LOGGING
- LDAP_LOG ( INDEX, ARGS,
- "=> bdb_dn2ididl( \"%s\" )\n", e->e_nname.bv_val, 0, 0 );
+ LDAP_LOG ( INDEX, ARGS, "=> bdb_dn2ididl( \"%s\" )\n",
+ e->e_nname.bv_val, 0, 0 );
#else
- Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2idl( \"%s\" )\n", e->e_nname.bv_val, 0, 0 );
+ Debug( LDAP_DEBUG_TRACE, "=> bdb_dn2idl( \"%s\" )\n",
+ e->e_nname.bv_val, 0, 0 );
#endif
#ifndef BDB_MULTIPLE_SUFFIXES
- if (prefix == DN_SUBTREE_PREFIX && BEI(e)->bei_parent->bei_id == 0 )
- {
+ if ( prefix == DN_SUBTREE_PREFIX && BEI(e)->bei_parent->bei_id == 0 ) {
BDB_IDL_ALL(bdb, ids);
return 0;
}
Operation *op;
};
-/* Stuff for iterating over a bei_kids AVL tree and adding the
- * IDs to an IDL
- */
-struct apply_arg {
- ID *idl;
- EntryInfo **ei;
-};
-
static int
apply_func(
void *data,
void *arg )
{
EntryInfo *ei = data;
- struct apply_arg *ap = arg;
+ ID *idl = arg;
- bdb_idl_insert( ap->idl, ei->bei_id );
- if ( ap->ei ) {
- *(ap->ei)++ = ei;
- }
+ bdb_idl_insert( idl, ei->bei_id );
return 0;
}
struct dn2id_cookie *cx
)
{
- EntryInfo **eilist = NULL, **ptr;
#ifdef SLAP_IDL_CACHE
if ( cx->bdb->bi_idl_cache_size ) {
cx->rc = bdb_idl_cache_get(cx->bdb, cx->db, &cx->key, cx->tmp);
#endif
BDB_IDL_ZERO( cx->tmp );
+ if ( !cx->ei ) {
+ cx->ei = bdb_cache_find_info( cx->bdb, cx->id );
+ if ( !cx->ei ) {
+ cx->rc = DB_NOTFOUND;
+ goto saveit;
+ }
+ }
+
+ bdb_cache_entryinfo_lock( cx->ei );
+
/* If number of kids in the cache differs from on-disk, load
* up all the kids from the database
*/
if ( cx->ei->bei_ckids+1 != cx->ei->bei_dkids ) {
EntryInfo ei;
+ db_recno_t dkids = cx->ei->bei_dkids;
ei.bei_parent = cx->ei;
+ bdb_cache_entryinfo_unlock( cx->ei );
+
cx->rc = cx->db->cursor( cx->db, NULL, &cx->dbc,
cx->bdb->bi_db_opflags );
if ( cx->rc ) return cx->rc;
/* The first item holds the parent ID. Ignore it. */
cx->rc = cx->dbc->c_get( cx->dbc, &cx->key, &cx->data, DB_SET );
- if ( cx->rc == DB_NOTFOUND ) goto saveit;
- if ( cx->rc ) return cx->rc;
+ if ( cx->rc ) {
+ cx->dbc->c_close( cx->dbc );
+ if ( cx->rc == DB_NOTFOUND ) goto saveit;
+ return cx->rc;
+ }
/* If the on-disk count is zero we've never checked it.
* Count it now.
*/
- if ( !cx->ei->bei_dkids ) {
- db_recno_t dkids;
+ if ( !dkids ) {
cx->dbc->c_count( cx->dbc, &dkids, 0 );
cx->ei->bei_dkids = dkids;
}
- /* If there are kids and this is a subtree search, allocate
- * temp storage for the list of kids.
- */
- if ( cx->prefix == DN_SUBTREE_PREFIX && cx->ei->bei_dkids > 1 ) {
- eilist = cx->op->o_tmpalloc( sizeof(EntryInfo *) * cx->ei->bei_dkids, cx->op->o_tmpmemctx );
- eilist[cx->ei->bei_dkids-1] = NULL;
- ptr = eilist;
- }
-
cx->data.data = cx->buf;
cx->data.ulen = BDB_IDL_UM_SIZE * sizeof(ID);
cx->data.flags = DB_DBT_USERMEM;
if (j) {
EntryInfo *ei2;
diskNode *d = (diskNode *)j;
+ short nrlen;
AC_MEMCPY( &ei.bei_id, &d->entryID, sizeof(ID) );
- AC_MEMCPY( &ei.bei_nrdn.bv_len, &d->nrdnlen, sizeof(d->nrdnlen) );
+ AC_MEMCPY( &nrlen, &d->nrdnlen, sizeof(d->nrdnlen) );
+ ei.bei_nrdn.bv_len = nrlen;
/* nrdn/rdn are set in-place.
* hdb_cache_load will copy them as needed
*/
ei.bei_rdn.bv_val = d->nrdn + ei.bei_nrdn.bv_len + 1;
bdb_idl_insert( cx->tmp, ei.bei_id );
hdb_cache_load( cx->bdb, &ei, &ei2 );
- if ( eilist )
- *ptr++ = ei2;
}
}
}
- cx->dbc->c_close( cx->dbc );
+ cx->rc = cx->dbc->c_close( cx->dbc );
} else {
/* The in-memory cache is in sync with the on-disk data.
* do we have any kids?
*/
cx->rc = 0;
if ( cx->ei->bei_ckids > 0 ) {
- struct apply_arg ap;
-
- /* Temp storage for subtree search */
- if ( cx->prefix == DN_SUBTREE_PREFIX ) {
- eilist = cx->op->o_tmpalloc( sizeof(EntryInfo *) * cx->ei->bei_dkids, cx->op->o_tmpmemctx );
- eilist[cx->ei->bei_dkids-1] = NULL;
- }
/* Walk the kids tree; order is irrelevant since bdb_idl_insert
* will insert in sorted order.
*/
- ap.idl = cx->tmp;
- ap.ei = eilist;
- bdb_cache_entryinfo_lock( cx->ei );
- avl_apply( cx->ei->bei_kids, apply_func, &ap, -1, AVL_POSTORDER );
- bdb_cache_entryinfo_unlock( cx->ei );
+ avl_apply( cx->ei->bei_kids, apply_func, cx->tmp, -1, AVL_POSTORDER );
}
- }
-
- /* If we got some records, treat as success */
- if (!BDB_IDL_IS_ZERO(cx->tmp)) {
- cx->rc = 0;
+ bdb_cache_entryinfo_unlock( cx->ei );
}
saveit:
#endif
;
gotit:
- if ( cx->rc == 0 ) {
- /* If eilist is NULL, cx->tmp is empty... */
+ if ( !BDB_IDL_IS_ZERO( cx->tmp )) {
if ( cx->prefix == DN_SUBTREE_PREFIX ) {
- if ( eilist ) {
+ if (cx->ei->bei_state & CACHE_ENTRY_NO_GRANDKIDS) {
bdb_idl_union( cx->ids, cx->tmp );
- for (ptr = eilist; *ptr; ptr++) {
- cx->ei = *ptr;
- cx->id = cx->ei->bei_id;
+ } else {
+ ID *save, idcurs;
+ EntryInfo *ei = cx->ei;
+ int nokids = 1;
+ save = cx->op->o_tmpalloc( BDB_IDL_SIZEOF( cx->tmp ),
+ cx->op->o_tmpmemctx );
+ BDB_IDL_CPY( save, cx->tmp );
+ bdb_idl_union( cx->ids, cx->tmp );
+
+ idcurs = 0;
+ for ( cx->id = bdb_idl_first( save, &idcurs );
+ cx->id != NOID;
+ cx->id = bdb_idl_next( save, &idcurs )) {
+ cx->ei = NULL;
hdb_dn2idl_internal( cx );
+ if ( !BDB_IDL_IS_ZERO( cx->tmp ))
+ nokids = 0;
}
- cx->op->o_tmpfree( eilist, cx->op->o_tmpmemctx );
- cx->rc = 0;
+ cx->op->o_tmpfree( save, cx->op->o_tmpmemctx );
+ if ( nokids ) ei->bei_state |= CACHE_ENTRY_NO_GRANDKIDS;
}
+ /* Make sure caller knows it had kids! */
+ cx->tmp[0]=1;
+
+ cx->rc = 0;
} else {
BDB_IDL_CPY( cx->ids, cx->tmp );
}
#endif
#ifndef BDB_MULTIPLE_SUFFIXES
- if ( op->ors_scope == LDAP_SCOPE_SUBTREE &&
- BEI(e)->bei_parent->bei_id == 0 ) {
+ if ( op->ors_scope != LDAP_SCOPE_ONELEVEL &&
+ BEI(e)->bei_parent->bei_id == 0 )
+ {
BDB_IDL_ALL( bdb, ids );
return 0;
}
cx.ei = BEI(e);
cx.bdb = bdb;
cx.db = cx.bdb->bi_dn2id->bdi_db;
- cx.prefix = op->ors_scope == LDAP_SCOPE_SUBTREE ? DN_SUBTREE_PREFIX :
- DN_ONE_PREFIX;
+ cx.prefix = op->ors_scope == LDAP_SCOPE_ONELEVEL
+ ? DN_ONE_PREFIX : DN_SUBTREE_PREFIX;
cx.ids = ids;
cx.buf = stack;
cx.op = op;
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