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78 lines
2.3 KiB
78 lines
2.3 KiB
/* idl.h - ldap bdb back-end ID list 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 2000-2011 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 _MDB_MIDL_H_
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#define _MDB_MIDL_H_
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#define AC_MEMCPY(dst,src,size) memcpy(dst,src,size)
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#define ID unsigned long
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#define NOID ((ID)~0)
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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 MDB_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */
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#define MDB_IDL_DB_SIZE (1<<MDB_IDL_LOGN)
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#define MDB_IDL_UM_SIZE (1<<(MDB_IDL_LOGN+1))
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#define MDB_IDL_UM_SIZEOF (MDB_IDL_UM_SIZE * sizeof(ID))
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#define MDB_IDL_DB_MAX (MDB_IDL_DB_SIZE-1)
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#define MDB_IDL_UM_MAX (MDB_IDL_UM_SIZE-1)
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#define MDB_IDL_IS_RANGE(ids) ((ids)[0] == NOID)
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#define MDB_IDL_RANGE_SIZE (3)
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#define MDB_IDL_RANGE_SIZEOF (MDB_IDL_RANGE_SIZE * sizeof(ID))
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#define MDB_IDL_SIZEOF(ids) ((MDB_IDL_IS_RANGE(ids) \
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? MDB_IDL_RANGE_SIZE : ((ids)[0]+1)) * sizeof(ID))
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#define MDB_IDL_RANGE_FIRST(ids) ((ids)[1])
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#define MDB_IDL_RANGE_LAST(ids) ((ids)[2])
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#define MDB_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 MDB_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 MDB_IDL_IS_ZERO(ids) ( (ids)[0] == 0 )
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#define MDB_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 MDB_IDL_CPY( dst, src ) (AC_MEMCPY( dst, src, MDB_IDL_SIZEOF( src ) ))
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#define MDB_IDL_ID( bdb, ids, id ) MDB_IDL_RANGE( ids, id, ((bdb)->bi_lastid) )
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#define MDB_IDL_ALL( bdb, ids ) MDB_IDL_RANGE( ids, 1, ((bdb)->bi_lastid) )
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#define MDB_IDL_FIRST( ids ) ( ids[1] )
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#define MDB_IDL_LAST( ids ) ( MDB_IDL_IS_RANGE(ids) \
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? ids[2] : ids[ids[0]] )
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#define MDB_IDL_N( ids ) ( MDB_IDL_IS_RANGE(ids) \
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? (ids[2]-ids[1])+1 : ids[0] )
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int mdb_midl_insert( ID *ids, ID id );
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#endif /* _MDB_MIDL_H_ */
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