From c000cad09d0b54c455c99271bfb996c2dfe13073 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Mon, 6 May 2024 03:23:53 +0200
Subject: Adding upstream version 2.4.47+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 servers/slapd/back-mdb/idl.h | 116 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 servers/slapd/back-mdb/idl.h

(limited to 'servers/slapd/back-mdb/idl.h')

diff --git a/servers/slapd/back-mdb/idl.h b/servers/slapd/back-mdb/idl.h
new file mode 100644
index 0000000..4768c88
--- /dev/null
+++ b/servers/slapd/back-mdb/idl.h
@@ -0,0 +1,116 @@
+/* idl.h - ldap mdb back-end ID list header file */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2018 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 _MDB_IDL_H_
+#define _MDB_IDL_H_
+
+/* IDL sizes - likely should be even bigger
+ *   limiting factors: sizeof(ID), thread stack size
+ */
+#define	MDB_IDL_LOGN	16	/* DB_SIZE is 2^16, UM_SIZE is 2^17 */
+#define MDB_IDL_DB_SIZE		(1<<MDB_IDL_LOGN)
+#define MDB_IDL_UM_SIZE		(1<<(MDB_IDL_LOGN+1))
+#define MDB_IDL_UM_SIZEOF	(MDB_IDL_UM_SIZE * sizeof(ID))
+
+#define MDB_IDL_DB_MAX		(MDB_IDL_DB_SIZE-1)
+
+#define MDB_IDL_UM_MAX		(MDB_IDL_UM_SIZE-1)
+
+#define MDB_IDL_IS_RANGE(ids)	((ids)[0] == NOID)
+#define MDB_IDL_RANGE_SIZE		(3)
+#define MDB_IDL_RANGE_SIZEOF	(MDB_IDL_RANGE_SIZE * sizeof(ID))
+#define MDB_IDL_SIZEOF(ids)		((MDB_IDL_IS_RANGE(ids) \
+	? MDB_IDL_RANGE_SIZE : ((ids)[0]+1)) * sizeof(ID))
+
+#define MDB_IDL_RANGE_FIRST(ids)	((ids)[1])
+#define MDB_IDL_RANGE_LAST(ids)		((ids)[2])
+
+#define MDB_IDL_RANGE( ids, f, l ) \
+	do { \
+		(ids)[0] = NOID; \
+		(ids)[1] = (f);  \
+		(ids)[2] = (l);  \
+	} while(0)
+
+#define MDB_IDL_ZERO(ids) \
+	do { \
+		(ids)[0] = 0; \
+		(ids)[1] = 0; \
+		(ids)[2] = 0; \
+	} while(0)
+
+#define MDB_IDL_IS_ZERO(ids) ( (ids)[0] == 0 )
+#define MDB_IDL_IS_ALL( range, ids ) ( (ids)[0] == NOID \
+	&& (ids)[1] <= (range)[1] && (range)[2] <= (ids)[2] )
+
+#define MDB_IDL_CPY( dst, src ) (AC_MEMCPY( dst, src, MDB_IDL_SIZEOF( src ) ))
+
+#define MDB_IDL_ID( mdb, ids, id ) MDB_IDL_RANGE( ids, id, NOID )
+#define MDB_IDL_ALL( ids ) MDB_IDL_RANGE( ids, 1, NOID )
+
+#define MDB_IDL_FIRST( ids )	( (ids)[1] )
+#define MDB_IDL_LLAST( ids )	( (ids)[(ids)[0]] )
+#define MDB_IDL_LAST( ids )		( MDB_IDL_IS_RANGE(ids) \
+	? (ids)[2] : (ids)[(ids)[0]] )
+
+#define MDB_IDL_N( ids )		( MDB_IDL_IS_RANGE(ids) \
+	? ((ids)[2]-(ids)[1])+1 : (ids)[0] )
+
+	/** An ID2 is an ID/value pair.
+	 */
+typedef struct ID2 {
+	ID mid;			/**< The ID */
+	MDB_val mval;		/**< The value */
+} ID2;
+
+	/** An ID2L is an ID2 List, a sorted array of ID2s.
+	 * The first element's \b mid member is a count of how many actual
+	 * elements are in the array. The \b mptr member of the first element is unused.
+	 * The array is sorted in ascending order by \b mid.
+	 */
+typedef ID2 *ID2L;
+
+typedef struct IdScopes {
+	MDB_txn *mt;
+	MDB_cursor *mc;
+	ID id;
+	ID2L scopes;
+	ID2L sctmp;
+	int numrdns;
+	int nscope;
+	int oscope;
+	struct berval rdns[MAXRDNS];
+	struct berval nrdns[MAXRDNS];
+} IdScopes;
+
+LDAP_BEGIN_DECL
+	/** Search for an ID in an ID2L.
+	 * @param[in] ids	The ID2L to search.
+	 * @param[in] id	The ID to search for.
+	 * @return	The index of the first ID2 whose \b mid member is greater than or equal to \b id.
+	 */
+unsigned mdb_id2l_search( ID2L ids, ID id );
+
+
+	/** Insert an ID2 into a ID2L.
+	 * @param[in,out] ids	The ID2L to insert into.
+	 * @param[in] id	The ID2 to insert.
+	 * @return	0 on success, -1 if the ID was already present in the MIDL2.
+	 */
+int mdb_id2l_insert( ID2L ids, ID2 *id );
+LDAP_END_DECL
+
+#endif
-- 
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