uvrrpd/log.h

159 lines
3.6 KiB
C

/*
* log.h
*
* Copyright (C) 2014 Arnaud Andre
*
* This file is part of uvrrpd.
*
* uvrrpd is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* uvrrpd is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with uvrrpd. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _LOG_H_
#define _LOG_H_
/* ISO C */
#include <errno.h>
#include <string.h>
/* POSIX */
#include <syslog.h>
/**
* log_trigger (char const *level)
* Set up logs level trigger. If level is NULL return current level trigger
* - <b>err</b> Error conditions
* - <b>warning</b> Warning conditions
* - <b>notice</b> Normal, but significant, condition
* - <b>info</b> Informational message
* - <b>debug</b> Debug message
*/
int log_trigger(char const *level);
/**
* log_open (char const *app, char const *level)
* Open logs system. Define logs level trigger.
* @app Application name
* @level Logs level
*/
void log_open(char const *app, char const *level);
/**
* log_close( void )
* Close logs system.
*/
void log_close(void);
/**
* log_it( int priority, char const *format, ...)
* Log message if priority is higher than level trigger
* @priority Message
* @format Log message
* @... Arguments list
*/
void log_it(int priority, char const *format, ...)
__attribute__ ((__format__(__printf__, 2, 3)));
/**
* log_error( fmt, ... )
* @fmt Log message
* @... Arguments list
*/
#define log_error( fmt, ... ) \
do { \
log_it( LOG_ERR, "%s::%s "fmt, \
"error", __func__, ##__VA_ARGS__ ); \
} while ( 0 )
/**
* log_sys_error( fmt, ... )
* @fmt Log message
* @... Arguments list
*/
#define log_sys_error( fmt, ... ) \
do { \
log_it( LOG_ERR, "%s::%s "fmt" %s", \
"error", __func__, ##__VA_ARGS__, strerror(errno) ); \
} while ( 0 )
/**
* log_warning( fmt, ... )
* @fmt Log message
* @... Arguments list
*/
#define log_warning( fmt, ... ) \
do { \
log_it( LOG_WARNING, "%s::%s "fmt, \
"warning", __func__, ##__VA_ARGS__ ); \
} while ( 0 )
/**
* log_notice( ... )
* @... Log message and arguments list
*/
#define log_notice( ... ) \
do { \
log_it( LOG_NOTICE, ##__VA_ARGS__ ); \
} while ( 0 )
/**
* log_info( ... )
* Log message. Enable in info or higher level
* @... Log message and arguments list
*/
#define log_info( ... ) \
do { \
extern int __log_trigger; \
\
if ( LOG_INFO <= __log_trigger ) \
log_it( LOG_INFO, ##__VA_ARGS__ ); \
} while ( 0 )
/**
* log_debug( fmt, ... )
* Log message. Enable in debug level
* @fmt Log message
* @... Arguments list
*/
#define log_debug( fmt, ... ) \
do { \
extern int __log_trigger; \
\
if ( LOG_DEBUG <= __log_trigger ) \
log_it( LOG_DEBUG, "%s %s "fmt, \
"--- DEBUG ---", __func__, ##__VA_ARGS__ ); \
} while ( 0 )
#ifdef DEBUG
/**
* log_devel( fmt, ... )
* Log message. Enable in devel level
* @fmt Log message
* @... Arguments list
*/
#define log_devel( fmt, ... ) \
do { \
extern int __log_trigger; \
\
if ( LOG_DEBUG <= __log_trigger ) \
log_it( LOG_DEBUG, "%s %s( " fmt " )", \
"--- DEVEL ---", __func__, ##__VA_ARGS__ ); \
} while ( 0 )
#else
#define log_devel( fmt, ... )
#endif /* DEBUG */
#endif /* _LOG_H_ */