/* back-bdb.h - bdb back-end header file */
/* $OpenLDAP$ */
-/*
- * Copyright 2000-2003 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>.
*/
#ifndef _BACK_BDB_H_
/* The minimum we can function with */
#define MINIMUM_SEARCH_STACK_DEPTH 8
-/* for the IDL cache */
-#define SLAP_IDL_CACHE 1
-
-#ifdef SLAP_IDL_CACHE
typedef struct bdb_idl_cache_entry_s {
struct berval kstr;
ldap_pvt_thread_rdwr_t idl_entry_rwlock;
struct bdb_idl_cache_entry_s* idl_lru_prev;
struct bdb_idl_cache_entry_s* idl_lru_next;
} bdb_idl_cache_entry_t;
-#endif
/* BDB backend specific entry info */
typedef struct bdb_entry_info {
struct bdb_entry_info *bei_parent;
ID bei_id;
- int bei_state;
+ /* we use the bei_id as a lockobj, but we need to make the size != 4
+ * to avoid conflicting with BDB's internal locks. So add a byte here
+ * that is always zero.
+ */
+ char bei_lockpad;
+
+ short bei_state;
#define CACHE_ENTRY_DELETED 1
#define CACHE_ENTRY_NO_KIDS 2
#define CACHE_ENTRY_NOT_LINKED 4
#define CACHE_ENTRY_NO_GRANDKIDS 8
+#define CACHE_ENTRY_LOADING 0x10
/*
* remaining fields require backend cache lock to access
EntryInfo *c_lrutail; /* lru - rem lru entries from here */
ldap_pvt_thread_rdwr_t c_rwlock;
ldap_pvt_thread_mutex_t lru_mutex;
+ u_int32_t c_locker; /* used by lru cleaner */
} Cache;
#define CACHE_READ_LOCK 0
ID bi_lastid;
ldap_pvt_thread_mutex_t bi_lastid_mutex;
LDAP_LIST_HEAD(pl, slap_op) bi_psearch_list;
-#ifdef SLAP_IDL_CACHE
+ ldap_pvt_thread_rdwr_t bi_pslist_rwlock;
+ LDAP_LIST_HEAD(se, slap_session_entry) bi_session_list;
int bi_idl_cache_max_size;
int bi_idl_cache_size;
Avlnode *bi_idl_tree;
bdb_idl_cache_entry_t *bi_idl_lru_tail;
ldap_pvt_thread_rdwr_t bi_idl_tree_rwlock;
ldap_pvt_thread_mutex_t bi_idl_tree_lrulock;
-#endif
};
#define bi_id2entry bi_databases[BDB_ID2ENTRY]