-/* delete.c - ldbm backend delete routine */
+/* delete.c - bdb backend delete routine */
/* $OpenLDAP$ */
/*
- * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
*/
#include <ac/string.h>
#include "back-bdb.h"
+#include "external.h"
int
bdb_delete(
- Backend *be,
- Connection *conn,
- Operation *op,
- const char *dn,
- const char *ndn
+ BackendDB *be,
+ Connection *conn,
+ Operation *op,
+ struct berval *dn,
+ struct berval *ndn
)
{
struct bdb_info *bdb = (struct bdb_info *) be->be_private;
Entry *matched;
- char *pdn = NULL;
+ struct berval pdn = {0, NULL};
Entry *e, *p = NULL;
int rc;
- const char *text = NULL;
+ const char *text;
int manageDSAit = get_manageDSAit( op );
AttributeDescription *children = slap_schema.si_ad_children;
DB_TXN *ltid = NULL;
-
- Debug(LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n", dn, 0, 0);
-
- if (0) {
-retry: rc = txn_abort( ltid );
+ struct bdb_op_info opinfo;
+#if 0
+ u_int32_t lockid;
+ DB_LOCK lock;
+#endif
+
+ Debug( LDAP_DEBUG_ARGS, "==> bdb_delete: %s\n",
+ dn->bv_val, 0, 0 );
+
+ if( 0 ) {
+retry: /* transaction retry */
+ if( e != NULL ) {
+ bdb_cache_return_entry_w(&bdb->bi_cache, e);
+ }
+ Debug( LDAP_DEBUG_TRACE, "==> bdb_delete: retrying...\n",
+ 0, 0, 0 );
+ rc = TXN_ABORT( ltid );
ltid = NULL;
op->o_private = NULL;
if( rc != 0 ) {
text = "internal error";
goto return_results;
}
+ ldap_pvt_thread_yield();
}
/* begin transaction */
- rc = txn_begin( bdb->bi_dbenv, NULL, <id, 0 );
+ rc = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
+ bdb->bi_db_opflags );
+ text = NULL;
if( rc != 0 ) {
Debug( LDAP_DEBUG_TRACE,
"bdb_delete: txn_begin failed: %s (%d)\n",
text = "internal error";
goto return_results;
}
+#if 0
+ lockid = TXN_ID( ltid );
+#endif
- op->o_private = ltid;
-
- pdn = dn_parent( be, e->e_ndn );
+ opinfo.boi_bdb = be;
+ opinfo.boi_txn = ltid;
+ opinfo.boi_err = 0;
+ op->o_private = &opinfo;
- if( pdn != NULL && *pdn != '\0' ) {
- /* get parent with reader lock */
- rc = dn2entry_r( be, ltid, pdn, &p, NULL );
+ if ( !be_issuffix( be, ndn ) ) {
+ dnParent( ndn, &pdn );
+ }
- ch_free( pdn );
+ if( pdn.bv_len != 0 ) {
+#if 0
+ if ( ltid ) {
+ DBT obj;
+ obj.data = pdn.bv_val-1;
+ obj.size = pdn.bv_len+1;
+ rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
+ DB_LOCK_WRITE, &lock);
+ }
+#endif
+ /* get parent */
+ rc = bdb_dn2entry_r( be, ltid, &pdn, &p, NULL, 0 );
switch( rc ) {
+ case 0:
+ case DB_NOTFOUND:
+ break;
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
rc = access_allowed( be, conn, op, p,
children, NULL, ACL_WRITE );
- bdb_entry_return( be, p );
+ bdb_cache_return_entry_r(&bdb->bi_cache, p);
+ p = NULL;
+
+ switch( opinfo.boi_err ) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto retry;
+ }
if ( !rc ) {
Debug( LDAP_DEBUG_TRACE,
}
} else {
- ch_free( pdn );
-
/* no parent, must be root to delete */
- if( ! be_isroot( be, op->o_ndn ) ) {
- Debug( LDAP_DEBUG_TRACE,
- "<=- bdb_delete: no parent and not root\n",
- 0, 0, 0);
- rc = LDAP_INSUFFICIENT_ACCESS;
- goto return_results;
+ if( ! be_isroot( be, &op->o_ndn ) ) {
+ if ( be_issuffix( be, (struct berval *)&slap_empty_bv )
+ || be_isupdate( be, &op->o_ndn ) ) {
+ p = (Entry *)&slap_entry_root;
+
+ /* check parent for "children" acl */
+ rc = access_allowed( be, conn, op, p,
+ children, NULL, ACL_WRITE );
+ p = NULL;
+
+ switch( opinfo.boi_err ) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto retry;
+ }
+
+ if ( !rc ) {
+ Debug( LDAP_DEBUG_TRACE,
+ "<=- bdb_delete: no access "
+ "to parent\n", 0, 0, 0 );
+ rc = LDAP_INSUFFICIENT_ACCESS;
+ goto return_results;
+ }
+
+ } else {
+ Debug( LDAP_DEBUG_TRACE,
+ "<=- bdb_delete: no parent "
+ "and not root\n", 0, 0, 0);
+ rc = LDAP_INSUFFICIENT_ACCESS;
+ goto return_results;
+ }
+ }
+
+#if 0
+ if ( ltid ) {
+ DBT obj;
+ obj.data = ",";
+ obj.size = 1;
+ rc = LOCK_GET( bdb->bi_dbenv, lockid, 0, &obj,
+ DB_LOCK_WRITE, &lock);
}
+#endif
}
- /* get entry */
- rc = dn2entry_w( be, ltid, ndn, &e, &matched );
+ /* get entry for read/modify/write */
+ rc = bdb_dn2entry_w( be, ltid, ndn, &e, &matched, DB_RMW );
switch( rc ) {
+ case 0:
+ case DB_NOTFOUND:
+ break;
case DB_LOCK_DEADLOCK:
case DB_LOCK_NOTGRANTED:
goto retry;
if ( e == NULL ) {
char *matched_dn = NULL;
- struct berval **refs = NULL;
+ BerVarray refs;
Debug( LDAP_DEBUG_ARGS,
"<=- bdb_delete: no such object %s\n",
- dn, 0, 0);
+ dn->bv_val, 0, 0);
if ( matched != NULL ) {
matched_dn = ch_strdup( matched->e_dn );
refs = is_entry_referral( matched )
? get_entry_referrals( be, conn, op, matched )
: NULL;
- bdb_entry_return( be, matched );
+ bdb_cache_return_entry_r(&bdb->bi_cache, matched );
+ matched = NULL;
+
} else {
- refs = default_referral;
+ refs = referral_rewrite( default_referral,
+ NULL, dn, LDAP_SCOPE_DEFAULT );
}
send_ldap_result( conn, op, LDAP_REFERRAL,
matched_dn, NULL, refs, NULL );
- if ( matched != NULL ) {
- ber_bvecfree( refs );
- free( matched_dn );
- }
+ ber_bvarray_free( refs );
+ free( matched_dn );
rc = -1;
goto done;
}
- if ( !manageDSAit && is_entry_referral( e ) ) {
- /* parent is a referral, don't allow add */
- /* parent is an alias, don't allow add */
- struct berval **refs = get_entry_referrals( be,
+ if ( !manageDSAit && is_entry_referral( e ) ) {
+ /* entry is a referral, don't allow delete */
+ BerVarray refs = get_entry_referrals( be,
conn, op, e );
Debug( LDAP_DEBUG_TRACE,
0, 0, 0 );
send_ldap_result( conn, op, LDAP_REFERRAL,
- e->e_dn, NULL, refs, NULL );
+ e->e_dn, NULL, refs, NULL );
- ber_bvecfree( refs );
+ ber_bvarray_free( refs );
rc = 1;
goto done;
}
-
- if ( bdb_has_children( be, e ) ) {
- Debug(LDAP_DEBUG_ARGS,
- "<=- bdb_delete: non leaf %s\n",
- dn, 0, 0);
- rc = LDAP_NOT_ALLOWED_ON_NONLEAF;
- text = "subtree delete not supported";
+ rc = bdb_dn2id_children( be, ltid, &e->e_nname );
+ if( rc != DB_NOTFOUND ) {
+ switch( rc ) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto retry;
+ case 0:
+ Debug(LDAP_DEBUG_ARGS,
+ "<=- bdb_delete: non-leaf %s\n",
+ dn->bv_val, 0, 0);
+ rc = LDAP_NOT_ALLOWED_ON_NONLEAF;
+ text = "subtree delete not supported";
+ break;
+ default:
+ Debug(LDAP_DEBUG_ARGS,
+ "<=- bdb_delete: has_children failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
+ rc = LDAP_OTHER;
+ text = "internal error";
+ }
goto return_results;
}
- /* delete from dn2id mapping */
- if ( bdb_dn2id_delete( be, e->e_ndn, e->e_id ) != 0 ) {
+ /* delete from dn2id */
+ rc = bdb_dn2id_delete( be, ltid, pdn.bv_val, e );
+ if ( rc != 0 ) {
+ switch( rc ) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto retry;
+ default:
+ rc = LDAP_OTHER;
+ }
Debug(LDAP_DEBUG_ARGS,
- "<=- ldbm_back_delete: operations error %s\n",
- dn, 0, 0);
- rc = LDAP_OTHER;
+ "<=- bdb_delete: dn2id failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
text = "DN index delete failed";
goto return_results;
}
- /* delete from disk and cache */
- if ( bdb_id2entry_delete( be, e ) != 0 ) {
+ /* delete from id2entry */
+ rc = bdb_id2entry_delete( be, ltid, e );
+ if ( rc != 0 ) {
+ switch( rc ) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto retry;
+ default:
+ rc = LDAP_OTHER;
+ }
Debug(LDAP_DEBUG_ARGS,
- "<=- bdb_delete: operations error %s\n",
- dn, 0, 0);
- rc = LDAP_OTHER;
+ "<=- bdb_delete: id2entry failed: %s (%d)\n",
+ db_strerror(rc), rc, 0 );
text = "entry delete failed";
goto return_results;
}
- rc = txn_commit( ltid, 0 );
+ /* delete indices for old attributes */
+ rc = bdb_index_entry_del( be, ltid, e, e->e_attrs );
+ if ( rc != LDAP_SUCCESS ) {
+ switch( rc ) {
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto retry;
+ default:
+ rc = LDAP_OTHER;
+ }
+ Debug( LDAP_DEBUG_ANY, "entry index delete failed!\n",
+ 0, 0, 0 );
+ text = "entry index delete failed";
+ goto return_results;
+ }
+
+#if 0 /* Do we want to reclaim deleted IDs? */
+ ldap_pvt_thread_mutex_lock( &bdb->bi_lastid_mutex );
+ if ( e->e_id == bdb->bi_lastid ) {
+ bdb_last_id( be, ltid );
+ }
+ ldap_pvt_thread_mutex_unlock( &bdb->bi_lastid_mutex );
+#endif
+
+ if( op->o_noop ) {
+ rc = TXN_ABORT( ltid );
+ } else {
+ rc = TXN_COMMIT( ltid, 0 );
+ }
ltid = NULL;
op->o_private = NULL;
- if( rc == 0 ) {
+ if( rc != 0 ) {
Debug( LDAP_DEBUG_TRACE,
- "bdb_add: txn_commit failed: %s (%d)\n",
- db_strerror(rc), rc, 0 );
+ "bdb_delete: txn_%s failed: %s (%d)\n",
+ op->o_noop ? "abort (no-op)" : "commit",
+ db_strerror(rc), rc );
rc = LDAP_OTHER;
text = "commit failed";
+
} else {
Debug( LDAP_DEBUG_TRACE,
- "bdb_add: added id=%08x dn=\"%s\"\n",
- e->e_id, e->e_dn, 0 );
+ "bdb_delete: deleted%s id=%08lx dn=\"%s\"\n",
+ op->o_noop ? " (no-op)" : "",
+ e->e_id, e->e_dn );
rc = LDAP_SUCCESS;
text = NULL;
}
return_results:
- send_ldap_result( conn, op, LDAP_SUCCESS,
- NULL, text, NULL, NULL );
+ send_ldap_result( conn, op, rc, NULL, text, NULL, NULL );
+
+ if(rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
+ ldap_pvt_thread_yield();
+ TXN_CHECKPOINT( bdb->bi_dbenv,
+ bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
+ }
done:
- /* free entry and writer lock */
- bdb_entry_return( be, e );
+ /* free entry */
+ if( e != NULL ) {
+ bdb_cache_return_entry_w(&bdb->bi_cache, e);
+ }
if( ltid != NULL ) {
- txn_abort( ltid );
+ TXN_ABORT( ltid );
op->o_private = NULL;
}
projects / openldap / blobdiff