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Diffstat (limited to 'servers/slapd/back-bdb/idl.h')
| -rw-r--r-- | servers/slapd/back-bdb/idl.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/servers/slapd/back-bdb/idl.h b/servers/slapd/back-bdb/idl.h new file mode 100644 index 0000000..1909054 --- /dev/null +++ b/servers/slapd/back-bdb/idl.h @@ -0,0 +1,75 @@ +/* idl.h - ldap bdb back-end ID list header file */ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 2000-2021 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 _BDB_IDL_H_ +#define _BDB_IDL_H_ + +/* IDL sizes - likely should be even bigger + * limiting factors: sizeof(ID), thread stack size + */ +#define BDB_IDL_LOGN 16 /* DB_SIZE is 2^16, UM_SIZE is 2^17 */ +#define BDB_IDL_DB_SIZE (1<<BDB_IDL_LOGN) +#define BDB_IDL_UM_SIZE (1<<(BDB_IDL_LOGN+1)) +#define BDB_IDL_UM_SIZEOF (BDB_IDL_UM_SIZE * sizeof(ID)) + +#define BDB_IDL_DB_MAX (BDB_IDL_DB_SIZE-1) + +#define BDB_IDL_UM_MAX (BDB_IDL_UM_SIZE-1) + +#define BDB_IDL_IS_RANGE(ids) ((ids)[0] == NOID) +#define BDB_IDL_RANGE_SIZE (3) +#define BDB_IDL_RANGE_SIZEOF (BDB_IDL_RANGE_SIZE * sizeof(ID)) +#define BDB_IDL_SIZEOF(ids) ((BDB_IDL_IS_RANGE(ids) \ + ? BDB_IDL_RANGE_SIZE : ((ids)[0]+1)) * sizeof(ID)) + +#define BDB_IDL_RANGE_FIRST(ids) ((ids)[1]) +#define BDB_IDL_RANGE_LAST(ids) ((ids)[2]) + +#define BDB_IDL_RANGE( ids, f, l ) \ + do { \ + (ids)[0] = NOID; \ + (ids)[1] = (f); \ + (ids)[2] = (l); \ + } while(0) + +#define BDB_IDL_ZERO(ids) \ + do { \ + (ids)[0] = 0; \ + (ids)[1] = 0; \ + (ids)[2] = 0; \ + } while(0) + +#define BDB_IDL_IS_ZERO(ids) ( (ids)[0] == 0 ) +#define BDB_IDL_IS_ALL( range, ids ) ( (ids)[0] == NOID \ + && (ids)[1] <= (range)[1] && (range)[2] <= (ids)[2] ) + +#define BDB_IDL_CPY( dst, src ) (AC_MEMCPY( dst, src, BDB_IDL_SIZEOF( src ) )) + +#define BDB_IDL_ID( bdb, ids, id ) BDB_IDL_RANGE( ids, id, ((bdb)->bi_lastid) ) +#define BDB_IDL_ALL( bdb, ids ) BDB_IDL_RANGE( ids, 1, ((bdb)->bi_lastid) ) + +#define BDB_IDL_FIRST( ids ) ( (ids)[1] ) +#define BDB_IDL_LLAST( ids ) ( (ids)[(ids)[0]] ) +#define BDB_IDL_LAST( ids ) ( BDB_IDL_IS_RANGE(ids) \ + ? (ids)[2] : (ids)[(ids)[0]] ) + +#define BDB_IDL_N( ids ) ( BDB_IDL_IS_RANGE(ids) \ + ? ((ids)[2]-(ids)[1])+1 : (ids)[0] ) + +LDAP_BEGIN_DECL +LDAP_END_DECL + +#endif |