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209 lines
4.7 KiB
C
209 lines
4.7 KiB
C
/* back-mdb.h - mdb back-end header file */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2000-2013 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#ifndef _BACK_MDB_H_
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#define _BACK_MDB_H_
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#include <portable.h>
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#include "slap.h"
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#include "lmdb.h"
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LDAP_BEGIN_DECL
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#undef MDB_TOOL_IDL_CACHING /* currently no perf gain */
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#define DN_BASE_PREFIX SLAP_INDEX_EQUALITY_PREFIX
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#define DN_ONE_PREFIX '%'
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#define DN_SUBTREE_PREFIX '@'
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#define MDB_AD2ID 0
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#define MDB_DN2ID 1
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#define MDB_ID2ENTRY 2
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#define MDB_NDB 3
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/* The default search IDL stack cache depth */
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#define DEFAULT_SEARCH_STACK_DEPTH 16
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/* The minimum we can function with */
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#define MINIMUM_SEARCH_STACK_DEPTH 8
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#define MDB_INDICES 128
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#define MDB_MAXADS 65536
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/* Default to 10MB max */
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#define DEFAULT_MAPSIZE (10*1048576)
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#ifdef LDAP_DEVEL
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#define MDB_MONITOR_IDX
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#endif /* LDAP_DEVEL */
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typedef struct mdb_monitor_t {
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void *mdm_cb;
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struct berval mdm_ndn;
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} mdb_monitor_t;
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/* From ldap_rq.h */
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struct re_s;
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struct mdb_info {
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MDB_env *mi_dbenv;
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/* DB_ENV parameters */
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/* The DB_ENV can be tuned via DB_CONFIG */
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char *mi_dbenv_home;
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uint32_t mi_dbenv_flags;
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int mi_dbenv_mode;
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size_t mi_mapsize;
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ID mi_nextid;
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slap_mask_t mi_defaultmask;
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int mi_nattrs;
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struct mdb_attrinfo **mi_attrs;
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void *mi_search_stack;
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int mi_search_stack_depth;
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int mi_readers;
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int mi_txn_cp;
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uint32_t mi_txn_cp_min;
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uint32_t mi_txn_cp_kbyte;
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struct re_s *mi_txn_cp_task;
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struct re_s *mi_index_task;
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mdb_monitor_t mi_monitor;
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#ifdef MDB_MONITOR_IDX
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ldap_pvt_thread_mutex_t mi_idx_mutex;
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Avlnode *mi_idx;
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#endif /* MDB_MONITOR_IDX */
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int mi_flags;
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#define MDB_IS_OPEN 0x01
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#define MDB_OPEN_INDEX 0x02
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#define MDB_DEL_INDEX 0x08
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#define MDB_RE_OPEN 0x10
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#define MDB_NEED_UPGRADE 0x20
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int mi_numads;
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MDB_dbi mi_dbis[MDB_NDB];
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AttributeDescription *mi_ads[MDB_MAXADS];
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int mi_adxs[MDB_MAXADS];
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};
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#define mi_id2entry mi_dbis[MDB_ID2ENTRY]
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#define mi_dn2id mi_dbis[MDB_DN2ID]
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#define mi_ad2id mi_dbis[MDB_AD2ID]
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typedef struct mdb_op_info {
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OpExtra moi_oe;
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MDB_txn* moi_txn;
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int moi_ref;
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char moi_flag;
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} mdb_op_info;
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#define MOI_READER 0x01
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#define MOI_FREEIT 0x02
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/* Copy an ID "src" to pointer "dst" in big-endian byte order */
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#define MDB_ID2DISK( src, dst ) \
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do { int i0; ID tmp; unsigned char *_p; \
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tmp = (src); _p = (unsigned char *)(dst); \
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for ( i0=sizeof(ID)-1; i0>=0; i0-- ) { \
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_p[i0] = tmp & 0xff; tmp >>= 8; \
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} \
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} while(0)
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/* Copy a pointer "src" to a pointer "dst" from big-endian to native order */
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#define MDB_DISK2ID( src, dst ) \
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do { unsigned i0; ID tmp = 0; unsigned char *_p; \
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_p = (unsigned char *)(src); \
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for ( i0=0; i0<sizeof(ID); i0++ ) { \
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tmp <<= 8; tmp |= *_p++; \
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} *(dst) = tmp; \
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} while (0)
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LDAP_END_DECL
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/* for the cache of attribute information (which are indexed, etc.) */
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typedef struct mdb_attrinfo {
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AttributeDescription *ai_desc; /* attribute description cn;lang-en */
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slap_mask_t ai_indexmask; /* how the attr is indexed */
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slap_mask_t ai_newmask; /* new settings to replace old mask */
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#ifdef LDAP_COMP_MATCH
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ComponentReference* ai_cr; /*component indexing*/
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#endif
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Avlnode *ai_root; /* for tools */
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MDB_cursor *ai_cursor; /* for tools */
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int ai_idx; /* position in AI array */
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MDB_dbi ai_dbi;
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} AttrInfo;
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/* tool threaded indexer state */
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typedef struct mdb_attrixinfo {
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OpExtra ai_oe;
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void *ai_flist;
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void *ai_clist;
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AttrInfo *ai_ai;
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} AttrIxInfo;
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/* These flags must not clash with SLAP_INDEX flags or ops in slap.h! */
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#define MDB_INDEX_DELETING 0x8000U /* index is being modified */
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#define MDB_INDEX_UPDATE_OP 0x03 /* performing an index update */
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/* For slapindex to record which attrs in an entry belong to which
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* index database
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*/
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typedef struct AttrList {
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struct AttrList *next;
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Attribute *attr;
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} AttrList;
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#ifndef CACHELINE
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#define CACHELINE 64
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#endif
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#if defined(__i386) || defined(__x86_64)
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#define MISALIGNED_OK 1
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#else
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#define ALIGNER (sizeof(size_t)-1)
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#endif
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typedef struct IndexRbody {
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AttrInfo *ai;
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AttrList *attrs;
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void *tptr;
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int i;
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} IndexRbody;
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typedef struct IndexRec {
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union {
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IndexRbody irb;
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#define ir_ai iru.irb.ai
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#define ir_attrs iru.irb.attrs
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#define ir_tptr iru.irb.tptr
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#define ir_i iru.irb.i
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/* cache line alignment */
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char pad[(sizeof(IndexRbody)+CACHELINE-1) & (!CACHELINE-1)];
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} iru;
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} IndexRec;
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#define MAXRDNS SLAP_LDAPDN_MAXLEN/4
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#include "proto-mdb.h"
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#endif /* _BACK_MDB_H_ */
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