1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#pragma ident	"%Z%%M%	%I%	%E% SMI"
28
29#include "mdinclude.h"
30
31/*
32 * Generic walker svm mddb directory block walker.
33 */
34int
35mddb_db_walk_init(mdb_walk_state_t *wsp)
36{
37
38	/* Must have a start addr.  */
39	if (wsp->walk_addr == NULL) {
40		mdb_warn("start address required\n");
41		return (WALK_ERR);
42	}
43	return (WALK_NEXT);
44}
45
46
47/*
48 * svm mddb directory block walker step routine.
49 */
50int
51mddb_db_walk_step(mdb_walk_state_t *wsp)
52{
53	mddb_db_t	db_entry;
54	int		status;
55
56	if (wsp->walk_addr == NULL)
57		return (WALK_DONE);
58
59	if (mdb_vread(&db_entry, sizeof (mddb_db_t), wsp->walk_addr) == -1) {
60		mdb_warn("failed to read mddb_db_t at %p",
61		wsp->walk_addr);
62		return (WALK_ERR);
63	}
64
65	status = wsp->walk_callback(wsp->walk_addr, (&db_entry)->db_next,
66	    wsp->walk_cbdata);
67
68	wsp->walk_addr = (uintptr_t)db_entry.db_next;
69
70	return (status);
71}
72