1 /* back-bdb.h - bdb back-end header file */
4 * Copyright 2000-2001 The OpenLDAP Foundation, All Rights Reserved.
5 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
18 #define BDB_FILTER_INDICES 1
19 #define BDB_IDL_MULTI 1
21 #define DN_BASE_PREFIX SLAP_INDEX_EQUALITY_PREFIX
22 #define DN_ONE_PREFIX '%'
23 #define DN_SUBTREE_PREFIX '@'
25 #define DBTzero(t) (memset((t), 0, sizeof(DBT)))
26 #define DBT2bv(t,bv) ((bv)->bv_val = (t)->data, \
27 (bv)->bv_len = (t)->size)
28 #define bv2DBT(bv,t) ((t)->data = (bv)->bv_val, \
29 (t)->size = (bv)->bv_len )
31 #define DEFAULT_MODE 0600
33 #define BDB_TXN_RETRIES 16
35 #define BDB_DBENV_HOME LDAP_RUNDIR LDAP_DIRSEP "openldap-bdb"
38 #define BDB_TMP_SUBDIR LDAP_DIRSEP "tmp"
39 #define BDB_LG_SUBDIR LDAP_DIRSEP "log"
40 #define BDB_DATA_SUBDIR LDAP_DIRSEP "data"
43 #define BDB_SUFFIX ".bdb"
44 #define BDB_ID2ENTRY 0
48 /* The bdb on-disk entry format is pretty space-inefficient. Average
49 * sized user entries are 3-4K each. You need at least two entries to
50 * fit into a single database page, more is better. 64K is BDB's
51 * upper bound. The same issues arise with IDLs in the index databases,
52 * but it's nearly impossible to avoid overflows there.
54 * When using BDB_IDL_MULTI, the IDL size is no longer an issue. Smaller
55 * pages are better for concurrency.
59 #define BDB_PAGESIZE 4096 /* BDB's original default */
61 #define BDB_PAGESIZE 16384
65 #define BDB_INDICES 128
75 /* DB_ENV parameters */
76 /* The DB_ENV can be tuned via DB_CONFIG */
78 u_int32_t bi_dbenv_xflags; /* extra flags */
82 struct bdb_db_info **bi_databases;
83 ldap_pvt_thread_mutex_t bi_database_mutex;
84 int bi_db_opflags; /* db-specific flags */
86 slap_mask_t bi_defaultmask;
91 u_int32_t bi_txn_cp_min;
92 u_int32_t bi_txn_cp_kbyte;
96 int bi_lock_detect_seconds;
97 ldap_pvt_thread_t bi_lock_detect_tid;
101 ldap_pvt_thread_mutex_t bi_lastid_mutex;
104 #define bi_id2entry bi_databases[BDB_ID2ENTRY]
105 #define bi_dn2id bi_databases[BDB_DN2ID]
113 #if DB_VERSION_MAJOR < 4
114 #define TXN_CHECKPOINT(env, k, m, f) txn_checkpoint(env, k, m, f)
115 #define LOCK_DETECT(env, f, t, a) lock_detect(env, f, t, a)
117 #define TXN_CHECKPOINT(env, k, m, f) (env)->txn_checkpoint(env, k, m, f)
118 #define LOCK_DETECT(env, f, t, a) (env)->lock_detect(env, f, t, a)
123 #include "proto-bdb.h"
125 #endif /* _BACK_BDB_H_ */