syslog.h File Reference

System logger. More...

#include <stdarg.h>
#include <ipxe/ansiesc.h>
#include <config/console.h>

Go to the source code of this file.

Macros
#define	LOG_EMERG   0
	Emergency: system is unusable. More...
#define	LOG_ALERT   1
	Alert: action must be taken immediately. More...
#define	LOG_CRIT   2
	Critical: critical conditions. More...
#define	LOG_ERR   3
	Error: error conditions. More...
#define	LOG_WARNING   4
	Warning: warning conditions. More...
#define	LOG_NOTICE   5
	Notice: normal but significant conditions. More...
#define	LOG_INFO   6
	Informational: informational messages. More...
#define	LOG_DEBUG   7
	Debug: debug-level messages. More...
#define	LOG_NONE   -1
	Do not log any messages. More...
#define	LOG_ALL   LOG_DEBUG
	Log all messages. More...
#define	SYSLOG_SET_PRIORITY(priority)   "\033[" #priority "p"
	ANSI private escape sequence to set syslog priority. More...
#define	SYSLOG_CLEAR_PRIORITY   "\033[p"
	ANSI private escape sequence to clear syslog priority. More...
#define	vsyslog(priority, fmt, args)
	Write message to system log. More...
#define	syslog(priority, fmt, ...)
	Write message to system log. More...

Functions
	FILE_LICENCE (GPL2_OR_LATER_OR_UBDL)
void	log_vprintf (const char *fmt, va_list args)
	Write message to system log. More...
void	__attribute__ ((format(printf, 1, 2))) log_printf(const char *fmt

Detailed Description

System logger.

Definition in file syslog.h.

Macro Definition Documentation

LOG_NONE

#define LOG_NONE   -1

Do not log any messages.

Definition at line 52 of file syslog.h.

LOG_ALL

#define LOG_ALL   LOG_DEBUG

Log all messages.

Definition at line 55 of file syslog.h.

SYSLOG_SET_PRIORITY

#define SYSLOG_SET_PRIORITY

(

priority

)

"\033[" #priority "p"

ANSI private escape sequence to set syslog priority.

Parameters

priority

Priority

Definition at line 66 of file syslog.h.

SYSLOG_CLEAR_PRIORITY

#define SYSLOG_CLEAR_PRIORITY   "\033[p"

ANSI private escape sequence to clear syslog priority.

Definition at line 70 of file syslog.h.

vsyslog

#define vsyslog	(		priority,
			fmt,
			args
	)

Value:

do {                            \
        if ( (priority) <= LOG_LEVEL ) {                                \
                log_vprintf ( SYSLOG_SET_PRIORITY ( priority ) fmt      \
                              SYSLOG_CLEAR_PRIORITY, (args) );          \
        }                                                               \
        } while ( 0 )

Write message to system log.

Parameters

priority	Message priority
fmt	Format string
...	Arguments

Definition at line 79 of file syslog.h.

syslog

#define syslog	(		priority,
			fmt,
			...
	)

Value:

do {                            \
        if ( (priority) <= LOG_LEVEL ) {                                \
                log_printf ( SYSLOG_SET_PRIORITY ( priority ) fmt       \
                             SYSLOG_CLEAR_PRIORITY, ##__VA_ARGS__ );    \
        }                                                               \
        } while ( 0 )

Write message to system log.

Parameters

priority	Message priority
fmt	Format string
...	Arguments

Definition at line 93 of file syslog.h.

Function Documentation

FILE_LICENCE()

FILE_LICENCE

(

GPL2_OR_LATER_OR_UBDL

)

log_vprintf()

void log_vprintf	(	const char *	fmt,
		va_list	args
	)

Write message to system log.

Parameters

fmt	Format string
args	Arguments

Definition at line 42 of file log.c.

                                                   {
        int saved_usage;

        /* Mark console as in use for log messages */
        saved_usage = console_set_usage ( CONSOLE_USAGE_LOG );

        /* Print message */
        vprintf ( fmt, args );

        /* Restore console usage */
        console_set_usage ( saved_usage );
}

References console_set_usage(), CONSOLE_USAGE_LOG, fmt, saved_usage, and vprintf().

Referenced by log_printf().

__attribute__()

void __attribute__

(

(format(printf, 1, 2))

)

const