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88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/*
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* Copyright (C) 2001 Sistina Software (UK) Limited.
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*
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* This file is released under the GPL.
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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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* (suppressed if single-character string such as with 'stack')
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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>
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#include <string.h>
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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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void init_log(FILE *fp);
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void fin_log(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_debug(int level);
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int test_mode(void);
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int debug_level(void);
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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("stack")
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#define log_error(fmt, args...) log_err(fmt , ## args)
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#define log_print(fmt, args...) log_warn(fmt , ## args)
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#define log_verbose(fmt, args...) log_notice(fmt , ## args)
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#define log_very_verbose(fmt, args...) log_info(fmt , ## 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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#endif
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/*
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* Local variables:
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* c-file-style: "linux"
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* End:
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*/
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