lvm2/libdm/misc/dm-logging.h

/*
 * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
 * Copyright (C) 2004-2016 Red Hat, Inc. All rights reserved.
 *
 * This file is part of LVM2.
 *
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License v.2.1.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef _DM_LOGGING_H
#define _DM_LOGGING_H

#include "libdevmapper.h"

extern dm_log_with_errno_fn dm_log_with_errno;

#define LOG_MESG(l, f, ln, e, x...) \
	dm_log_with_errno(l, f, ln, e, ## x)

#define LOG_LINE(l, x...) LOG_MESG(l, __FILE__, __LINE__, 0, ## x)
#define LOG_LINE_WITH_ERRNO(l, e, x...) LOG_MESG(l, __FILE__, __LINE__, e, ## x)

/* Debug messages may have a type instead of an errno */
#define LOG_LINE_WITH_CLASS(l, c, x...) LOG_MESG(l, __FILE__, __LINE__, c, ## x)

#include "log.h"

#endif
Add dm-logging.h ready for libdevmapper. 2008-10-30 20:54:12 +03:00			`/*`
			`* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.`
libdm: use dm_log_with_errno always Instead of compiling 2 log call for 2 different logging functions, and runtime decide which version to use - use only 'newer' function and when user sets his own OLD dm_log logging translate it runtime for old arg list set. The positive part is - we get shorter generated library, on the negative part this translation means, we always have evaluate all args and print the message into local on stack buffer, before we can pass this buffer to the users' logging function with proper expected parameters (and such function may later decide to discard logging based on message level so whole printing was unnecessary). 2016-11-03 19:15:07 +03:00			`* Copyright (C) 2004-2016 Red Hat, Inc. All rights reserved.`
Add dm-logging.h ready for libdevmapper. 2008-10-30 20:54:12 +03:00			`*`
			`* This file is part of LVM2.`
			`*`
			`* This copyrighted material is made available to anyone wishing to use,`
			`* modify, copy, or redistribute it subject to the terms and conditions`
			`* of the GNU Lesser General Public License v.2.1.`
			`*`
			`* You should have received a copy of the GNU Lesser General Public License`
			`* along with this program; if not, write to the Free Software Foundation,`
doc: change fsf address Hmm rpmlint suggest fsf is using a different address these days, so lets keep it up-to-date 2016-01-21 13:49:46 +03:00			`* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA`
Add dm-logging.h ready for libdevmapper. 2008-10-30 20:54:12 +03:00			`*/`

			`#ifndef _DM_LOGGING_H`
			`#define _DM_LOGGING_H`

			`#include "libdevmapper.h"`

Add dm_log_with_errno and dm_log_with_errno_init, deprecating the old Change plog to use dm_log_with_errno unless deprecated dm_log_init was used. Rename plog macro to LOG_LINE and use in dm_dump_memory_debug. 2009-07-10 13:59:37 +04:00			`extern dm_log_with_errno_fn dm_log_with_errno;`
Add dm-logging.h ready for libdevmapper. 2008-10-30 20:54:12 +03:00
Add log_errno to set a specific errno and replace log_error in due course. 2009-07-16 04:52:06 +04:00			`#define LOG_MESG(l, f, ln, e, x...) \`
libdm: use dm_log_with_errno always Instead of compiling 2 log call for 2 different logging functions, and runtime decide which version to use - use only 'newer' function and when user sets his own OLD dm_log logging translate it runtime for old arg list set. The positive part is - we get shorter generated library, on the negative part this translation means, we always have evaluate all args and print the message into local on stack buffer, before we can pass this buffer to the users' logging function with proper expected parameters (and such function may later decide to discard logging based on message level so whole printing was unnecessary). 2016-11-03 19:15:07 +03:00			`dm_log_with_errno(l, f, ln, e, ## x)`
Add dm-logging.h ready for libdevmapper. 2008-10-30 20:54:12 +03:00
Add log_errno to set a specific errno and replace log_error in due course. 2009-07-16 04:52:06 +04:00			`#define LOG_LINE(l, x...) LOG_MESG(l, __FILE__, __LINE__, 0, ## x)`
			`#define LOG_LINE_WITH_ERRNO(l, e, x...) LOG_MESG(l, __FILE__, __LINE__, e, ## x)`
New LOG_MESG macro to fix file/line number logging for memory leaks after LOG_LINENO macro was added. 2009-07-15 18:18:38 +04:00
logging: add debug classes Add log/debug_classes to lvm.conf to allow debug messages to be classified and filtered at runtime. The dm_errno field is only used by log_error(), so I've redefined it for log_debug() messages to hold the message class. By default, all existing messages appear, but we can add categories that generate high volumes of data, such as logging all traffic to/from lvmetad. 2013-01-08 02:25:19 +04:00			`/* Debug messages may have a type instead of an errno */`
			`#define LOG_LINE_WITH_CLASS(l, c, x...) LOG_MESG(l, __FILE__, __LINE__, c, ## x)`

Add dm-logging.h ready for libdevmapper. 2008-10-30 20:54:12 +03:00			`#include "log.h"`

			`#endif`