1 /* back-mdb.h - mdb back-end header file */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2016 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>.
26 #undef MDB_TOOL_IDL_CACHING /* currently no perf gain */
28 #define DN_BASE_PREFIX SLAP_INDEX_EQUALITY_PREFIX
29 #define DN_ONE_PREFIX '%'
30 #define DN_SUBTREE_PREFIX '@'
34 #define MDB_ID2ENTRY 2
38 /* The default search IDL stack cache depth */
39 #define DEFAULT_SEARCH_STACK_DEPTH 16
41 /* The minimum we can function with */
42 #define MINIMUM_SEARCH_STACK_DEPTH 8
44 #define MDB_INDICES 128
46 #define MDB_MAXADS 65536
48 /* Default to 10MB max */
49 #define DEFAULT_MAPSIZE (10*1048576)
51 /* Most users will never see this */
52 #define DEFAULT_RTXN_SIZE 10000
54 #define MDB_MONITOR_IDX
56 typedef struct mdb_monitor_t {
58 struct berval mdm_ndn;
67 /* DB_ENV parameters */
69 uint32_t mi_dbenv_flags;
74 size_t mi_maxentrysize;
76 slap_mask_t mi_defaultmask;
78 struct mdb_attrinfo **mi_attrs;
79 void *mi_search_stack;
80 int mi_search_stack_depth;
83 uint32_t mi_rtxn_size;
85 uint32_t mi_txn_cp_min;
86 uint32_t mi_txn_cp_kbyte;
88 struct re_s *mi_txn_cp_task;
89 struct re_s *mi_index_task;
91 mdb_monitor_t mi_monitor;
93 #ifdef MDB_MONITOR_IDX
94 ldap_pvt_thread_mutex_t mi_idx_mutex;
96 #endif /* MDB_MONITOR_IDX */
99 #define MDB_IS_OPEN 0x01
100 #define MDB_OPEN_INDEX 0x02
101 #define MDB_DEL_INDEX 0x08
102 #define MDB_RE_OPEN 0x10
103 #define MDB_NEED_UPGRADE 0x20
107 unsigned mi_multi_hi;
108 /* more than this many values in an attr goes
109 * into a separate DB */
110 unsigned mi_multi_lo;
111 /* less than this many values in an attr goes
112 * back into main blob */
114 MDB_dbi mi_dbis[MDB_NDB];
115 AttributeDescription *mi_ads[MDB_MAXADS];
116 int mi_adxs[MDB_MAXADS];
119 #define mi_id2entry mi_dbis[MDB_ID2ENTRY]
120 #define mi_dn2id mi_dbis[MDB_DN2ID]
121 #define mi_ad2id mi_dbis[MDB_AD2ID]
122 #define mi_id2val mi_dbis[MDB_ID2VAL]
124 typedef struct mdb_op_info {
130 #define MOI_READER 0x01
131 #define MOI_FREEIT 0x02
132 #define MOI_KEEPER 0x04
136 /* for the cache of attribute information (which are indexed, etc.) */
137 typedef struct mdb_attrinfo {
138 AttributeDescription *ai_desc; /* attribute description cn;lang-en */
139 slap_mask_t ai_indexmask; /* how the attr is indexed */
140 slap_mask_t ai_newmask; /* new settings to replace old mask */
141 #ifdef LDAP_COMP_MATCH
142 ComponentReference* ai_cr; /*component indexing*/
144 Avlnode *ai_root; /* for tools */
145 MDB_cursor *ai_cursor; /* for tools */
146 int ai_idx; /* position in AI array */
150 /* tool threaded indexer state */
151 typedef struct mdb_attrixinfo {
158 /* These flags must not clash with SLAP_INDEX flags or ops in slap.h! */
159 #define MDB_INDEX_DELETING 0x8000U /* index is being modified */
160 #define MDB_INDEX_UPDATE_OP 0x03 /* performing an index update */
162 /* For slapindex to record which attrs in an entry belong to which
165 typedef struct AttrList {
166 struct AttrList *next;
174 #if defined(__i386) || defined(__x86_64)
175 #define MISALIGNED_OK 1
177 #define ALIGNER (sizeof(size_t)-1)
180 typedef struct IndexRbody {
187 typedef struct IndexRec {
190 #define ir_ai iru.irb.ai
191 #define ir_attrs iru.irb.attrs
192 #define ir_tptr iru.irb.tptr
193 #define ir_i iru.irb.i
194 /* cache line alignment */
195 char pad[(sizeof(IndexRbody)+CACHELINE-1) & (!CACHELINE-1)];
199 #define MAXRDNS SLAP_LDAPDN_MAXLEN/4
201 #include "proto-mdb.h"
203 #endif /* _BACK_MDB_H_ */