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Diffstat (limited to 'servers/slapd/back-mdb/back-mdb.h')
| -rw-r--r-- | servers/slapd/back-mdb/back-mdb.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/servers/slapd/back-mdb/back-mdb.h b/servers/slapd/back-mdb/back-mdb.h new file mode 100644 index 0000000..2b48aaa --- /dev/null +++ b/servers/slapd/back-mdb/back-mdb.h @@ -0,0 +1,207 @@ +/* back-mdb.h - mdb back-end header file */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2000-2022 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_MDB_H_ +#define _BACK_MDB_H_ + +#include <portable.h> +#include "slap.h" +#include "lmdb.h" + +LDAP_BEGIN_DECL + +#undef MDB_TOOL_IDL_CACHING /* currently no perf gain */ + +#define DN_BASE_PREFIX SLAP_INDEX_EQUALITY_PREFIX +#define DN_ONE_PREFIX '%' +#define DN_SUBTREE_PREFIX '@' + +#define MDB_AD2ID 0 +#define MDB_DN2ID 1 +#define MDB_ID2ENTRY 2 +#define MDB_ID2VAL 3 +#define MDB_NDB 4 + +/* The default search IDL stack cache depth */ +#define DEFAULT_SEARCH_STACK_DEPTH 16 + +/* The minimum we can function with */ +#define MINIMUM_SEARCH_STACK_DEPTH 8 + +#define MDB_INDICES 128 + +#define MDB_MAXADS 65536 + +/* Default to 10MB max */ +#define DEFAULT_MAPSIZE (10*1048576) + +/* Most users will never see this */ +#define DEFAULT_RTXN_SIZE 10000 + +#ifdef LDAP_DEVEL +#define MDB_MONITOR_IDX +#endif + +typedef struct mdb_monitor_t { + void *mdm_cb; + struct berval mdm_ndn; +} mdb_monitor_t; + +/* From ldap_rq.h */ +struct re_s; + +struct mdb_info { + MDB_env *mi_dbenv; + + /* DB_ENV parameters */ + char *mi_dbenv_home; + unsigned mi_dbenv_flags; + int mi_dbenv_mode; + + size_t mi_mapsize; + ID mi_nextid; + size_t mi_maxentrysize; + + slap_mask_t mi_defaultmask; + int mi_nattrs; + struct mdb_attrinfo **mi_attrs; + void *mi_search_stack; + int mi_search_stack_depth; + int mi_readers; + + unsigned mi_rtxn_size; + int mi_txn_cp; + unsigned mi_txn_cp_min; + unsigned mi_txn_cp_kbyte; + + struct re_s *mi_txn_cp_task; + struct re_s *mi_index_task; + + mdb_monitor_t mi_monitor; + +#ifdef MDB_MONITOR_IDX + ldap_pvt_thread_mutex_t mi_idx_mutex; + Avlnode *mi_idx; +#endif /* MDB_MONITOR_IDX */ + + int mi_flags; +#define MDB_IS_OPEN 0x01 +#define MDB_OPEN_INDEX 0x02 +#define MDB_DEL_INDEX 0x08 +#define MDB_RE_OPEN 0x10 +#define MDB_NEED_UPGRADE 0x20 + + int mi_numads; + + unsigned mi_multi_hi; + /* more than this many values in an attr goes + * into a separate DB */ + unsigned mi_multi_lo; + /* less than this many values in an attr goes + * back into main blob */ + + MDB_dbi mi_dbis[MDB_NDB]; + AttributeDescription *mi_ads[MDB_MAXADS]; + int mi_adxs[MDB_MAXADS]; +}; + +#define mi_id2entry mi_dbis[MDB_ID2ENTRY] +#define mi_dn2id mi_dbis[MDB_DN2ID] +#define mi_ad2id mi_dbis[MDB_AD2ID] +#define mi_id2val mi_dbis[MDB_ID2VAL] + +typedef struct mdb_op_info { + OpExtra moi_oe; + MDB_txn* moi_txn; + int moi_ref; + char moi_flag; +} mdb_op_info; +#define MOI_READER 0x01 +#define MOI_FREEIT 0x02 +#define MOI_KEEPER 0x04 + +LDAP_END_DECL + +/* for the cache of attribute information (which are indexed, etc.) */ +typedef struct mdb_attrinfo { + AttributeDescription *ai_desc; /* attribute description cn;lang-en */ + slap_mask_t ai_indexmask; /* how the attr is indexed */ + slap_mask_t ai_newmask; /* new settings to replace old mask */ +#ifdef LDAP_COMP_MATCH + ComponentReference* ai_cr; /*component indexing*/ +#endif + TAvlnode *ai_root; /* for tools */ + MDB_cursor *ai_cursor; /* for tools */ + int ai_idx; /* position in AI array */ + MDB_dbi ai_dbi; + unsigned ai_multi_hi; + unsigned ai_multi_lo; +} AttrInfo; + +/* tool threaded indexer state */ +typedef struct mdb_attrixinfo { + OpExtra ai_oe; + void *ai_flist; + void *ai_clist; + AttrInfo *ai_ai; +} AttrIxInfo; + +/* These flags must not clash with SLAP_INDEX flags or ops in slap.h! */ +#define MDB_INDEX_DELETING 0x8000U /* index is being modified */ +#define MDB_INDEX_UPDATE_OP 0x03 /* performing an index update */ + +/* For slapindex to record which attrs in an entry belong to which + * index database + */ +typedef struct AttrList { + struct AttrList *next; + Attribute *attr; +} AttrList; + +#ifndef CACHELINE +#define CACHELINE 64 +#endif + +#if defined(__i386) || defined(__x86_64) +#define MISALIGNED_OK 1 +#else +#define ALIGNER (sizeof(size_t)-1) +#endif + +typedef struct IndexRbody { + AttrInfo *ai; + AttrList *attrs; + void *tptr; + int i; +} IndexRbody; + +typedef struct IndexRec { + union { + IndexRbody irb; +#define ir_ai iru.irb.ai +#define ir_attrs iru.irb.attrs +#define ir_tptr iru.irb.tptr +#define ir_i iru.irb.i + /* cache line alignment */ + char pad[(sizeof(IndexRbody)+CACHELINE-1) & (!CACHELINE-1)]; + } iru; +} IndexRec; + +#define MAXRDNS SLAP_LDAPDN_MAXLEN/4 + +#include "proto-mdb.h" + +#endif /* _BACK_MDB_H_ */ |