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#ifndef _SYSLOG_H
#define _SYSLOG_H
/** @file
*
* System logger
*
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdarg.h>
#include <ipxe/ansiesc.h>
#include <config/console.h>
/**
* @defgroup syslogpri Syslog priorities
*
* These values are chosen to match those used in the syslog network
* protocol (RFC 5424).
*
* @{
*/
/** Emergency: system is unusable */
#define LOG_EMERG 0
/** Alert: action must be taken immediately */
#define LOG_ALERT 1
/** Critical: critical conditions */
#define LOG_CRIT 2
/** Error: error conditions */
#define LOG_ERR 3
/** Warning: warning conditions */
#define LOG_WARNING 4
/** Notice: normal but significant conditions */
#define LOG_NOTICE 5
/** Informational: informational messages */
#define LOG_INFO 6
/** Debug: debug-level messages */
#define LOG_DEBUG 7
/** @} */
/** Do not log any messages */
#define LOG_NONE -1
/** Log all messages */
#define LOG_ALL LOG_DEBUG
extern void log_vprintf ( const char *fmt, va_list args );
extern void __attribute__ (( format ( printf, 1, 2 ) ))
log_printf ( const char *fmt, ... );
/** ANSI private escape sequence to set syslog priority
*
* @v priority Priority
*/
#define SYSLOG_SET_PRIORITY( priority ) \
"\033[" #priority "p"
/** ANSI private escape sequence to clear syslog priority */
#define SYSLOG_CLEAR_PRIORITY "\033[p"
/**
* Write message to system log
*
* @v priority Message priority
* @v fmt Format string
* @v ... Arguments
*/
#define vsyslog( priority, fmt, args ) do { \
if ( (priority) <= LOG_LEVEL ) { \
log_vprintf ( SYSLOG_SET_PRIORITY ( priority ) fmt \
SYSLOG_CLEAR_PRIORITY, (args) ); \
} \
} while ( 0 )
/**
* Write message to system log
*
* @v priority Message priority
* @v fmt Format string
* @v ... Arguments
*/
#define syslog( priority, fmt, ... ) do { \
if ( (priority) <= LOG_LEVEL ) { \
log_printf ( SYSLOG_SET_PRIORITY ( priority ) fmt \
SYSLOG_CLEAR_PRIORITY, ##__VA_ARGS__ ); \
} \
} while ( 0 )
#endif /* _SYSLOG_H */
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