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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25#ifndef _SYS_ZFS_DEBUG_H
26#define	_SYS_ZFS_DEBUG_H
27
28#ifdef	__cplusplus
29extern "C" {
30#endif
31
32#ifndef TRUE
33#define	TRUE 1
34#endif
35
36#ifndef FALSE
37#define	FALSE 0
38#endif
39
40/*
41 * ZFS debugging
42 */
43
44#if defined(DEBUG) || !defined(_KERNEL)
45#define	ZFS_DEBUG
46#endif
47
48extern int zfs_flags;
49
50#define	ZFS_DEBUG_DPRINTF	0x0001
51#define	ZFS_DEBUG_DBUF_VERIFY	0x0002
52#define	ZFS_DEBUG_DNODE_VERIFY	0x0004
53#define	ZFS_DEBUG_SNAPNAMES	0x0008
54#define	ZFS_DEBUG_MODIFY	0x0010
55
56#ifdef ZFS_DEBUG
57extern void __dprintf(const char *file, const char *func,
58    int line, const char *fmt, ...);
59#define	dprintf(...) \
60	if (zfs_flags & ZFS_DEBUG_DPRINTF) \
61		__dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
62#else
63#define	dprintf(...) ((void)0)
64#endif /* ZFS_DEBUG */
65
66extern void zfs_panic_recover(const char *fmt, ...);
67
68typedef struct zfs_dbgmsg {
69	list_node_t zdm_node;
70	time_t zdm_timestamp;
71	char zdm_msg[1]; /* variable length allocation */
72} zfs_dbgmsg_t;
73
74extern void zfs_dbgmsg_init(void);
75extern void zfs_dbgmsg_fini(void);
76extern void zfs_dbgmsg(const char *fmt, ...);
77
78#ifdef	__cplusplus
79}
80#endif
81
82#endif	/* _SYS_ZFS_DEBUG_H */
83