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e3ad1d19d5
event-driven model. Without changes to the way the cache gets updated, the option is currently unreliable without a global lock to prevent any lvm2 commands from running concurrently.
139 lines
4.3 KiB
C
139 lines
4.3 KiB
C
/*
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* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
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* Copyright (C) 2004 Red Hat, Inc. All rights reserved.
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*
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* This file is part of LVM2.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License v.2.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _LVM_LOG_H
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#define _LVM_LOG_H
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/*
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* printf()-style macros to use for messages:
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*
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* log_error - always print to stderr.
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* log_print - always print to stdout. Use this instead of printf.
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* log_verbose - print to stdout if verbose is set (-v)
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* log_very_verbose - print to stdout if verbose is set twice (-vv)
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* log_debug - print to stdout if verbose is set three times (-vvv)
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*
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* In addition, messages will be logged to file or syslog if they
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* are more serious than the log level specified with the log/debug_level
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* parameter in the configuration file. These messages get the file
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* and line number prepended. 'stack' (without arguments) can be used
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* to log this information at debug level.
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*
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* log_sys_error and log_sys_very_verbose are for errors from system calls
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* e.g. log_sys_error("stat", filename);
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* /dev/fd/7: stat failed: No such file or directory
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*
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*/
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#include <stdio.h> /* FILE */
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#include <string.h> /* strerror() */
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#include <errno.h>
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#define _LOG_DEBUG 7
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#define _LOG_INFO 6
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#define _LOG_NOTICE 5
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#define _LOG_WARN 4
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#define _LOG_ERR 3
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#define _LOG_FATAL 2
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#define VERBOSE_BASE_LEVEL _LOG_WARN
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#define SECURITY_LEVEL 0
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void init_log_file(const char *log_file, int append);
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void init_log_direct(const char *log_file, int append);
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void init_log_while_suspended(int log_while_suspended);
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void fin_log(void);
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void release_log_memory(void);
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void init_syslog(int facility);
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void fin_syslog(void);
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void init_verbose(int level);
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void init_test(int level);
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void init_partial(int level);
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void init_md_filtering(int level);
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void init_pvmove(int level);
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void init_full_scan_done(int level);
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void init_trust_cache(int trustcache);
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void init_debug(int level);
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void init_cmd_name(int status);
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void init_msg_prefix(const char *prefix);
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void init_indent(int indent);
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void init_ignorelockingfailure(int level);
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void init_lockingfailed(int level);
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void init_security_level(int level);
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void init_mirror_in_sync(int in_sync);
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void init_dmeventd_register(int reg);
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void set_cmd_name(const char *cmd_name);
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int test_mode(void);
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int partial_mode(void);
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int md_filtering(void);
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int pvmove_mode(void);
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int full_scan_done(void);
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int trust_cache(void);
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int debug_level(void);
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int ignorelockingfailure(void);
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int lockingfailed(void);
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int security_level(void);
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int mirror_in_sync(void);
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int dmeventd_register_mode(void);
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/* Suppress messages to stdout/stderr (1) or everywhere (2) */
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/* Returns previous setting */
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int log_suppress(int suppress);
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/* Suppress messages to syslog */
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void syslog_suppress(int suppress);
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typedef void (*lvm2_log_fn_t) (int level, const char *file, int line,
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const char *message);
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void init_log_fn(lvm2_log_fn_t log_fn);
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void print_log(int level, const char *file, int line, const char *format, ...)
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__attribute__ ((format(printf, 4, 5)));
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#define plog(l, x...) print_log(l, __FILE__, __LINE__ , ## x)
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#define log_debug(x...) plog(_LOG_DEBUG, x)
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#define log_info(x...) plog(_LOG_INFO, x)
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#define log_notice(x...) plog(_LOG_NOTICE, x)
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#define log_warn(x...) plog(_LOG_WARN, x)
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#define log_err(x...) plog(_LOG_ERR, x)
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#define log_fatal(x...) plog(_LOG_FATAL, x)
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#define stack log_debug("<backtrace>") /* Backtrace on error */
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#define log_error(args...) log_err(args)
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#define log_print(args...) log_warn(args)
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#define log_verbose(args...) log_notice(args)
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#define log_very_verbose(args...) log_info(args)
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/* Two System call equivalents */
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#define log_sys_error(x, y) \
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log_err("%s: %s failed: %s", y, x, strerror(errno))
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#define log_sys_very_verbose(x, y) \
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log_info("%s: %s failed: %s", y, x, strerror(errno))
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#define log_sys_debug(x, y) \
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log_debug("%s: %s failed: %s", y, x, strerror(errno))
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#define return_0 do { stack; return 0; } while (0)
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#define return_NULL do { stack; return NULL; } while (0)
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#define goto_out do { stack; goto out; } while (0)
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#endif
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