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lvm2/lib/log/lvm-logging.h
Tony Asleson fe5b538c14 lvm2app: Reset buffer after retrieving error message
The error buffer will stack error messages which is fine.  However,
once you retrieve the error messages it doesn't make sense to keep
appending for each additional error message when running in the
context of a library call.

This patch clears and resets the buffer after the user retrieves
the error message.

Signed-off-by: Tony Asleson <tasleson@redhat.com>
2013-11-19 14:40:42 -06:00

68 lines
2.0 KiB
C

/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _LVM_LOGGING_H
#define _LVM_LOGGING_H
void print_log(int level, const char *file, int line, int dm_errno_or_class,
const char *format, ...)
__attribute__ ((format(printf, 5, 6)));
#define LOG_LINE(l, x...) \
print_log(l, __FILE__, __LINE__ , 0, ## x)
#define LOG_LINE_WITH_ERRNO(l, e, x...) \
print_log(l, __FILE__, __LINE__ , e, ## x)
#define LOG_LINE_WITH_CLASS(l, c, x...) \
print_log(l, __FILE__, __LINE__ , c, ## x)
#include "log.h"
typedef void (*lvm2_log_fn_t) (int level, const char *file, int line,
int dm_errno_or_class, const char *message);
void init_log_fn(lvm2_log_fn_t log_fn);
void init_indent(int indent);
void init_msg_prefix(const char *prefix);
void init_log_file(const char *log_file, int append);
void init_log_direct(const char *log_file, int append);
void init_log_while_suspended(int log_while_suspended);
void init_abort_on_internal_errors(int fatal);
void fin_log(void);
void release_log_memory(void);
void reset_log_duplicated(void);
void init_syslog(int facility);
void fin_syslog(void);
int error_message_produced(void);
void reset_lvm_errno(int store_errmsg);
int stored_errno(void);
const char *stored_errmsg(void);
const char *stored_errmsg_with_clear(void);
/* Suppress messages to stdout/stderr (1) or everywhere (2) */
/* Returns previous setting */
int log_suppress(int suppress);
/* Suppress messages to syslog */
void syslog_suppress(int suppress);
#endif