2015-04-27 09:27:58 +08:00
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/* OpenLDAP WiredTiger backend */
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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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2016-01-30 03:32:05 +08:00
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* Copyright 2002-2016 The OpenLDAP Foundation.
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2015-04-27 09:27:58 +08:00
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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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/* ACKNOWLEDGEMENTS:
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* This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
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* based on back-bdb for inclusion in OpenLDAP Software.
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* WiredTiger is a product of MongoDB Inc.
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*/
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#ifndef _WI_IDL_H_
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#define _WT_IDL_H_
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/* IDL sizes - likely should be even bigger
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* limiting factors: sizeof(ID), thread stack size
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*/
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#define WT_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */
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#define WT_IDL_DB_SIZE (1<<WT_IDL_LOGN)
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#define WT_IDL_UM_SIZE (1<<(WT_IDL_LOGN+1))
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#define WT_IDL_UM_SIZEOF (WT_IDL_UM_SIZE * sizeof(ID))
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#define WT_IDL_DB_MAX (WT_IDL_DB_SIZE-1)
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#define WT_IDL_UM_MAX (WT_IDL_UM_SIZE-1)
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#define WT_IDL_IS_RANGE(ids) ((ids)[0] == NOID)
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#define WT_IDL_RANGE_SIZE (3)
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#define WT_IDL_RANGE_SIZEOF (WT_IDL_RANGE_SIZE * sizeof(ID))
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#define WT_IDL_SIZEOF(ids) ((WT_IDL_IS_RANGE(ids) \
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? WT_IDL_RANGE_SIZE : ((ids)[0]+1)) * sizeof(ID))
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#define WT_IDL_RANGE_FIRST(ids) ((ids)[1])
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#define WT_IDL_RANGE_LAST(ids) ((ids)[2])
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#define WT_IDL_RANGE( ids, f, l ) \
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do { \
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(ids)[0] = NOID; \
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(ids)[1] = (f); \
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(ids)[2] = (l); \
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} while(0)
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#define WT_IDL_ZERO(ids) \
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do { \
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(ids)[0] = 0; \
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(ids)[1] = 0; \
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(ids)[2] = 0; \
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} while(0)
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#define WT_IDL_IS_ZERO(ids) ( (ids)[0] == 0 )
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#define WT_IDL_IS_ALL( range, ids ) ( (ids)[0] == NOID \
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&& (ids)[1] <= (range)[1] && (range)[2] <= (ids)[2] )
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#define WT_IDL_CPY( dst, src ) (AC_MEMCPY( dst, src, WT_IDL_SIZEOF( src ) ))
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#define WT_IDL_ID( wi, ids, id ) WT_IDL_RANGE( ids, id, ((wi)->wi_lastid) )
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#define WT_IDL_ALL( wi, ids ) WT_IDL_RANGE( ids, 1, ((wi)->wi_lastid) )
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#define WT_IDL_FIRST( ids ) ( (ids)[1] )
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#define WT_IDL_LLAST( ids ) ( (ids)[(ids)[0]] )
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#define WT_IDL_LAST( ids ) ( WT_IDL_IS_RANGE(ids) \
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? (ids)[2] : (ids)[(ids)[0]] )
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#define WT_IDL_N( ids ) ( WT_IDL_IS_RANGE(ids) \
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? ((ids)[2]-(ids)[1])+1 : (ids)[0] )
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LDAP_BEGIN_DECL
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LDAP_END_DECL
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#endif
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