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/* OpenLDAP WiredTiger backend */
/* $OpenLDAP$ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 2002-2022 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>.
*/
/* ACKNOWLEDGEMENTS:
* This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
* based on back-bdb for inclusion in OpenLDAP Software.
* WiredTiger is a product of MongoDB Inc.
*/
#ifndef _WT_IDL_H_
#define _WT_IDL_H_
/* IDL sizes - likely should be even bigger
* limiting factors: sizeof(ID), thread stack size
*/
#define WT_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */
#define WT_IDL_DB_SIZE (1<<WT_IDL_LOGN)
#define WT_IDL_UM_SIZE (1<<(WT_IDL_LOGN+1))
#define WT_IDL_UM_SIZEOF (WT_IDL_UM_SIZE * sizeof(ID))
#define WT_IDL_DB_MAX (WT_IDL_DB_SIZE-1)
#define WT_IDL_UM_MAX (WT_IDL_UM_SIZE-1)
#define WT_IDL_IS_RANGE(ids) ((ids)[0] == NOID)
#define WT_IDL_RANGE_SIZE (3)
#define WT_IDL_RANGE_SIZEOF (WT_IDL_RANGE_SIZE * sizeof(ID))
#define WT_IDL_SIZEOF(ids) ((WT_IDL_IS_RANGE(ids) \
? WT_IDL_RANGE_SIZE : ((ids)[0]+1)) * sizeof(ID))
#define WT_IDL_RANGE_FIRST(ids) ((ids)[1])
#define WT_IDL_RANGE_LAST(ids) ((ids)[2])
#define WT_IDL_RANGE( ids, f, l ) \
do { \
(ids)[0] = NOID; \
(ids)[1] = (f); \
(ids)[2] = (l); \
} while(0)
#define WT_IDL_ZERO(ids) \
do { \
(ids)[0] = 0; \
(ids)[1] = 0; \
(ids)[2] = 0; \
} while(0)
#define WT_IDL_IS_ZERO(ids) ( (ids)[0] == 0 )
#define WT_IDL_IS_ALL( range, ids ) ( (ids)[0] == NOID \
&& (ids)[1] <= (range)[1] && (range)[2] <= (ids)[2] )
#define WT_IDL_CPY( dst, src ) (AC_MEMCPY( dst, src, WT_IDL_SIZEOF( src ) ))
#define WT_IDL_ID( wi, ids, id ) WT_IDL_RANGE( ids, id, ((wi)->wi_lastid) )
#define WT_IDL_ALL( wi, ids ) WT_IDL_RANGE( ids, 1, ((wi)->wi_lastid) )
#define WT_IDL_FIRST( ids ) ( (ids)[1] )
#define WT_IDL_LLAST( ids ) ( (ids)[(ids)[0]] )
#define WT_IDL_LAST( ids ) ( WT_IDL_IS_RANGE(ids) \
? (ids)[2] : (ids)[(ids)[0]] )
#define WT_IDL_N( ids ) ( WT_IDL_IS_RANGE(ids) \
? ((ids)[2]-(ids)[1])+1 : (ids)[0] )
LDAP_BEGIN_DECL
LDAP_END_DECL
#endif
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