usr/src/uts/common/fs/zfs/sys/zfs_debug.h

   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  * Copyright (c) 2012 by Delphix. All rights reserved.
  24  */
  25
  26 #ifndef _SYS_ZFS_DEBUG_H
  27 #define _SYS_ZFS_DEBUG_H
  28
  29 #ifdef  __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 #ifndef TRUE
  34 #define TRUE 1
  35 #endif
  36
  37 #ifndef FALSE
  38 #define FALSE 0
  39 #endif
  40
  41 /*
  42  * ZFS debugging
  43  */
  44
  45 #if defined(DEBUG) || !defined(_KERNEL)
  46 #define ZFS_DEBUG
  47 #endif
  48
  49 extern int zfs_flags;
  50
  51 #define ZFS_DEBUG_DPRINTF       0x0001
  52 #define ZFS_DEBUG_DBUF_VERIFY   0x0002
  53 #define ZFS_DEBUG_DNODE_VERIFY  0x0004
  54 #define ZFS_DEBUG_SNAPNAMES     0x0008
  55 #define ZFS_DEBUG_MODIFY        0x0010
  56
  57 #ifdef ZFS_DEBUG
  58 extern void __dprintf(const char *file, const char *func,
  59     int line, const char *fmt, ...);
  60 #define dprintf(...) \
  61         if (zfs_flags & ZFS_DEBUG_DPRINTF) \
  62                 __dprintf(__FILE__, __func__, __LINE__, __VA_ARGS__)
  63 #else
  64 #define dprintf(...) ((void)0)
  65 #endif /* ZFS_DEBUG */
  66
  67 extern void zfs_panic_recover(const char *fmt, ...);
  68
  69 typedef struct zfs_dbgmsg {
  70         list_node_t zdm_node;
  71         time_t zdm_timestamp;
  72         char zdm_msg[1]; /* variable length allocation */
  73 } zfs_dbgmsg_t;
  74
  75 extern void zfs_dbgmsg_init(void);
  76 extern void zfs_dbgmsg_fini(void);
  77 extern void zfs_dbgmsg(const char *fmt, ...);
  78
  79 #ifndef _KERNEL
  80 extern int dprintf_find_string(const char *string);
  81 #endif
  82
  83 #ifdef  __cplusplus
  84 }
  85 #endif
  86
  87 #endif  /* _SYS_ZFS_DEBUG_H */