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 broken */
28 #define DN_BASE_PREFIX SLAP_INDEX_EQUALITY_PREFIX
29 #define DN_ONE_PREFIX '%'
30 #define DN_SUBTREE_PREFIX '@'
34 #define MDB_ID2ENTRY 2
37 /* The default search IDL stack cache depth */
38 #define DEFAULT_SEARCH_STACK_DEPTH 16
40 /* The minimum we can function with */
41 #define MINIMUM_SEARCH_STACK_DEPTH 8
43 #define MDB_INDICES 128
45 #define MDB_MAXADS 65536
47 /* Default to 10MB max */
48 #define DEFAULT_MAPSIZE (10*1048576)
50 /* Most users will never see this */
51 #define DEFAULT_RTXN_SIZE 10000
54 #define MDB_MONITOR_IDX
55 #endif /* LDAP_DEVEL */
57 typedef struct mdb_monitor_t {
59 struct berval mdm_ndn;
68 /* DB_ENV parameters */
69 /* The DB_ENV can be tuned via DB_CONFIG */
71 uint32_t mi_dbenv_flags;
77 slap_mask_t mi_defaultmask;
79 struct mdb_attrinfo **mi_attrs;
80 void *mi_search_stack;
81 int mi_search_stack_depth;
84 uint32_t mi_rtxn_size;
86 uint32_t mi_txn_cp_min;
87 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 MDB_dbi mi_dbis[MDB_NDB];
108 AttributeDescription *mi_ads[MDB_MAXADS];
109 int mi_adxs[MDB_MAXADS];
112 #define mi_id2entry mi_dbis[MDB_ID2ENTRY]
113 #define mi_dn2id mi_dbis[MDB_DN2ID]
114 #define mi_ad2id mi_dbis[MDB_AD2ID]
116 typedef struct mdb_op_info {
122 #define MOI_READER 0x01
123 #define MOI_FREEIT 0x02
125 /* Copy an ID "src" to pointer "dst" in big-endian byte order */
126 #define MDB_ID2DISK( src, dst ) \
127 do { int i0; ID tmp; unsigned char *_p; \
128 tmp = (src); _p = (unsigned char *)(dst); \
129 for ( i0=sizeof(ID)-1; i0>=0; i0-- ) { \
130 _p[i0] = tmp & 0xff; tmp >>= 8; \
134 /* Copy a pointer "src" to a pointer "dst" from big-endian to native order */
135 #define MDB_DISK2ID( src, dst ) \
136 do { unsigned i0; ID tmp = 0; unsigned char *_p; \
137 _p = (unsigned char *)(src); \
138 for ( i0=0; i0<sizeof(ID); i0++ ) { \
139 tmp <<= 8; tmp |= *_p++; \
145 /* for the cache of attribute information (which are indexed, etc.) */
146 typedef struct mdb_attrinfo {
147 AttributeDescription *ai_desc; /* attribute description cn;lang-en */
148 slap_mask_t ai_indexmask; /* how the attr is indexed */
149 slap_mask_t ai_newmask; /* new settings to replace old mask */
150 #ifdef LDAP_COMP_MATCH
151 ComponentReference* ai_cr; /*component indexing*/
153 Avlnode *ai_root; /* for tools */
154 void *ai_flist; /* for tools */
155 void *ai_clist; /* for tools */
156 MDB_cursor *ai_cursor; /* for tools */
157 int ai_idx; /* position in AI array */
161 /* These flags must not clash with SLAP_INDEX flags or ops in slap.h! */
162 #define MDB_INDEX_DELETING 0x8000U /* index is being modified */
163 #define MDB_INDEX_UPDATE_OP 0x03 /* performing an index update */
165 /* For slapindex to record which attrs in an entry belong to which
168 typedef struct AttrList {
169 struct AttrList *next;
177 #if defined(__i386) || defined(__x86_64)
178 #define MISALIGNED_OK 1
180 #define ALIGNER (sizeof(size_t)-1)
183 typedef struct IndexRbody {
190 typedef struct IndexRec {
193 #define ir_ai iru.irb.ai
194 #define ir_attrs iru.irb.attrs
195 #define ir_tptr iru.irb.tptr
196 #define ir_i iru.irb.i
197 /* cache line alignment */
198 char pad[(sizeof(IndexRbody)+CACHELINE-1) & (!CACHELINE-1)];
202 #define MAXRDNS SLAP_LDAPDN_MAXLEN/4
204 #include "proto-mdb.h"
206 #endif /* _BACK_MDB_H_ */