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/*
* Copyright (c) 2003-2006 Erez Zadok
* Copyright (c) 2003-2006 Charles P. Wright
* Copyright (c) 2005-2006 Josef Sipek
* Copyright (c) 2005 Arun M. Krishnakumar
* Copyright (c) 2005-2006 David P. Quigley
* Copyright (c) 2003-2004 Mohammad Nayyer Zubair
* Copyright (c) 2003 Puja Gupta
* Copyright (c) 2003 Harikesavan Krishnan
* Copyright (c) 2003-2006 Stony Brook University
* Copyright (c) 2003-2006 The Research Foundation of State University of New York
*
* For specific licensing information, see the COPYING file distributed with
* this package.
*
* This Copyright notice must be kept intact and distributed with all sources.
*/
/*
* $Id: unionfs_debug.h,v 1.3 2006/06/01 21:25:18 jsipek Exp $
*/
#ifndef __UNIONFS_H_
#error This file should only be included from unionfs.h!
#endif
#ifdef UNIONFS_DEBUG
#define DEFAULT_DEBUG_MASK 0
#else
#define DEFAULT_DEBUG_MASK (~0)
#endif
/* debug print levels */
#define PRINT_NONE 0x0000
#define PRINT_MAIN_ENTRY 0x0001
#define PRINT_MAIN_EXIT 0x0002
#define PRINT_UTILITY_ENTRY 0x0004
#define PRINT_UTILITY_EXIT 0x0008
#define PRINT_MISC_ENTRY 0x0010
#define PRINT_MISC_EXIT 0x0020
#define PRINT_DATA_DENTRY 0x0040
#define PRINT_DATA_FILE 0x0080
#define PRINT_DATA_INODE 0x0100
#define PRINT_DATA_SB 0x0200
#define PRINT_DEBUG 0x0400
#define __PRINT_DEBUG_XATTR 0x0800
#define PRINT_DEBUG_XATTR (PRINT_DEBUG | __PRINT_DEBUG_XATTR)
#define __PRINT_DEBUG_WHITEOUT 0x1000
#define PRINT_DEBUG_WHITEOUT (PRINT_DEBUG | __PRINT_DEBUG_WHITEOUT)
#define PRINT_MAX (0x2000 - 1)
#define PRINT_ALL (~PRINT_NONE)
extern unsigned int get_debug_mask(void);
extern int set_debug_mask(int val);
/* print inode */
extern void unionfs_print_inode(const unsigned int req, const char *prefix, const struct inode *inode);
/* check inode */
extern void unionfs_checkinode(const unsigned int req, const struct inode *inode, const char *msg);
/* prunt file */
extern void unionfs_print_file(const unsigned int req, const char *prefix, const struct file *file);
/* print dentry */
extern void unionfs_print_dentry(const unsigned int req, const char *prefix, const struct dentry *dentry);
extern void unionfs_print_dentry_nocheck(const unsigned int req, const char *prefix, const struct dentry *dentry);
/* print superblock */
extern void unionfs_print_sb(const unsigned int req, const char *prefix, const struct super_block *sb);
/* print message */
extern int unionfs_print(const unsigned int req, const char *fmt, ...);
/* forced print-debugging functions */
#define force_print_dentry(prefix, ptr) \
unionfs_print_dentry(PRINT_ALL, (prefix), (ptr))
#define force_print_dentry_nocheck(prefix, ptr) \
unionfs_print_dentry_nocheck(PRINT_ALL, (prefix), (ptr))
#define force_print_file(prefix, ptr) \
unionfs_print_file(PRINT_ALL, (prefix), (ptr))
#define force_print_inode(prefix, ptr) \
unionfs_print_inode(PRINT_ALL, (prefix), (ptr))
#define force_print_sb(prefix, ptr) \
unionfs_print_sb(PRINT_ALL, (prefix), (ptr))
#ifdef UNIONFS_DEBUG
/*
* Full-fledged debugging enabled
*/
#define print_dentry(prefix, ptr) \
unionfs_print_dentry(PRINT_DATA_DENTRY, (prefix), (ptr))
#define print_dentry_nocheck(prefix, ptr) \
unionfs_print_dentry_nocheck(PRINT_DATA_DENTRY, (prefix), (ptr))
#define print_file(prefix, ptr) \
unionfs_print_file(PRINT_DATA_FILE, (prefix), (ptr))
#define print_inode(prefix, ptr) \
unionfs_print_inode(PRINT_DATA_INODE, (prefix), (ptr))
#define print_sb(prefix, ptr) \
unionfs_print_sb(PRINT_DATA_SB, (prefix), (ptr))
#define dprint(req, fmt, args...) \
unionfs_print(req, fmt, ## args)
#define checkinode(ptr, msg) \
unionfs_checkinode(PRINT_DEBUG, (ptr), (msg))
#define __print_entryexit(req, ee, fmt, args...) \
unionfs_print((req), \
ee " %s %s:%d" fmt "\n", \
__FUNCTION__, \
__FILE__, \
__LINE__, \
##args)
#define print_entry(fmt, args...) \
__print_entryexit(PRINT_MAIN_ENTRY, \
"IN: ", " " fmt, ##args)
#define print_entry_location() \
__print_entryexit(PRINT_MAIN_ENTRY, \
"IN: ", "")
#define print_exit_location() \
__print_entryexit(PRINT_MAIN_EXIT, \
"OUT:", "")
#define print_exit_status(status) \
__print_entryexit(PRINT_MAIN_EXIT, \
"OUT:", ", STATUS: %d", status)
static inline void __print_exit_pointer(unsigned int req, void *status)
{
if (IS_ERR(status))
__print_entryexit(req, "OUT:", ", STATUS: %ld",
PTR_ERR(status));
else
__print_entryexit(req, "OUT:", ", STATUS: 0x%p",
status);
}
#define print_exit_pointer(status) \
__print_exit_pointer(PRINT_MAIN_EXIT, status)
#define print_util_entry(fmt, args...) \
__print_entryexit(PRINT_UTILITY_ENTRY, \
"IN: ", " " fmt, ##args)
#define print_util_entry_location() \
__print_entryexit(PRINT_UTILITY_ENTRY, \
"IN: ", "")
#define print_util_exit_location() \
__print_entryexit(PRINT_UTILITY_EXIT, \
"OUT:", "")
#define print_util_exit_status(status) \
__print_entryexit(PRINT_UTILITY_EXIT, \
"OUT:", ", STATUS: %d", status)
#define print_util_exit_pointer(status) \
__print_exit_pointer(PRINT_UTILITY_EXIT, status)
#else /* UNIONFS_DEBUG */
/*
* Full-fledged debugging disabled
*/
#define print_dentry(prefix, ptr)
#define print_dentry_nocheck(prefix, ptr)
#define print_file(prefix, ptr)
#define print_inode(prefix, ptr)
#define print_sb(prefix, ptr)
#define dprint(req, fmt, args...)
#define checkinode(ptr, msg)
#define print_entry(args...)
#define print_entry_location()
#define print_exit_location()
#define print_exit_status(status)
#define print_exit_pointer(status)
#define print_util_entry(args...)
#define print_util_entry_location()
#define print_util_exit_location()
#define print_util_exit_status(status)
#define print_util_exit_pointer(status)
#endif /* ! UNIONFS_DEBUG */
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