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logging.h
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logging.h
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/******************************************************************************
** This file is part of profile-qt
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
**
** Redistributions of source code must retain the above copyright notice,
** this list of conditions and the following disclaimer. Redistributions in
** binary form must reproduce the above copyright notice, this list of
** conditions and the following disclaimer in the documentation and/or
** other materials provided with the distribution.
**
** Neither the name of Nokia Corporation nor the names of its contributors
** may be used to endorse or promote products derived from this software
** without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
** THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
** PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
** EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
** PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
** OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
** WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
** OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
** ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#ifndef LOGGING_H_
# define LOGGING_H_
# include <stdarg.h>
# include <syslog.h>
# ifdef __cplusplus
extern "C" {
# elif 0
} /* fool JED indentation ... */
# endif
/* ------------------------------------------------------------------------- *
* Configurable Logging
*
* -D LOGGING_ENABLED -> without this no logging will be done
*
* -D LOGGING_FNCALLS -> calltree via ENTER/LEAVE macros
*
* -D LOGGING_EXTRA -> syslog calls use promoted priority
*
* -D LOGGING_CHECK1ST -> check level before evaluating message args
*
* -D LOGGING_LEVEL=lev -> enable logging up to level
* 0 - emerg
* 1 - alert
* 2 - crit
* 3 - err
* 4 - warning
* 5 - notice
* 6 - info
* 7 - debug
* ------------------------------------------------------------------------- */
/* ------------------------------------------------------------------------- *
* Logging Functions
* ------------------------------------------------------------------------- */
# ifdef LOGGING_ENABLED
void log_open(const char *ident, int daemon);
void log_close(void);
void log_emit(int lev, const char *fmt, ...) __attribute__ ((format (printf, 2, 3)));
void log_set_level(int level);
int log_cmp_level(int level);
# else
# define log_open(IDENT,DAEMON) do{}while(0)
# define log_close() do{}while(0)
# define log_emit(LEV,FMT,ARG...) do{}while(0)
# define log_set_level(LEV) do{}while(0)
# define log_cmp_level(LEV) 0
# endif
/* ------------------------------------------------------------------------- *
* Logging Macros
* ------------------------------------------------------------------------- */
# ifdef LOGGING_ENABLED
# ifdef LOGGING_CHECK1ST
# define log_emitif(LEV,FMT,ARG...) \
do{\
if(log_cmp_level(LEV)) {\
log_emit(LEV,FMT,##ARG);\
}\
}while(0)
# else
# define log_emitif(LEV,FMT,ARG...) log_emit(LEV,FMT,##ARG)
# endif
# if LOGGING_LEVEL >= 0
# define log_emerg(FMT, ARG...) log_emitif(LOG_EMERG, FMT, ## ARG)
# define log_emerg_F(FMT, ARG...) log_emitif(LOG_EMERG, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# if LOGGING_LEVEL >= 1
# define log_alert(FMT, ARG...) log_emitif(LOG_ALERT, FMT, ## ARG)
# define log_alert_F(FMT, ARG...) log_emitif(LOG_ALERT, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# if LOGGING_LEVEL >= 2
# define log_crit(FMT, ARG...) log_emitif(LOG_CRIT, FMT, ## ARG)
# define log_crit_F(FMT, ARG...) log_emitif(LOG_CRIT, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# if LOGGING_LEVEL >= 3
# define log_err(FMT, ARG...) log_emitif(LOG_ERR, FMT, ## ARG)
# define log_err_F(FMT, ARG...) log_emitif(LOG_ERR, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# if LOGGING_LEVEL >= 4
# define log_warning(FMT, ARG...) log_emitif(LOG_WARNING, FMT, ## ARG)
# define log_warning_F(FMT, ARG...) log_emitif(LOG_WARNING, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# if LOGGING_LEVEL >= 5
# define log_notice(FMT, ARG...) log_emitif(LOG_NOTICE, FMT, ## ARG)
# define log_notice_F(FMT, ARG...) log_emitif(LOG_NOTICE, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# if LOGGING_LEVEL >= 6
# define log_info(FMT, ARG...) log_emitif(LOG_INFO, FMT, ## ARG)
# define log_info_F(FMT, ARG...) log_emitif(LOG_INFO, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# if LOGGING_LEVEL >= 7
# define log_debug(FMT, ARG...) log_emitif(LOG_DEBUG, FMT, ## ARG)
# define log_debug_F(FMT, ARG...) log_emitif(LOG_DEBUG, "%s: "FMT, __FUNCTION__, ## ARG)
# endif
# ifdef LOGGING_FNCALLS
void log_enter(const char *func);
void log_leave(const char *func);
# define ENTER log_enter(__FUNCTION__);
# define LEAVE log_leave(__FUNCTION__);
# endif
# endif
/* ------------------------------------------------------------------------- *
* Provide dummies if not defined above
* ------------------------------------------------------------------------- */
# ifndef log_emerg
# define log_emerg(FMT, ARG...) do{}while(0)
# define log_emerg_F(FMT, ARG...) do{}while(0)
# endif
# ifndef log_alert
# define log_alert(FMT, ARG...) do{}while(0)
# define log_alert_F(FMT, ARG...) do{}while(0)
# endif
# ifndef log_crit
# define log_crit(FMT, ARG...) do{}while(0)
# define log_crit_F(FMT, ARG...) do{}while(0)
# endif
# ifndef log_err
# define log_err(FMT, ARG...) do{}while(0)
# define log_err_F(FMT, ARG...) do{}while(0)
# endif
# ifndef log_warning
# define log_warning(FMT, ARG...) do{}while(0)
# define log_warning_F(FMT, ARG...) do{}while(0)
# endif
# ifndef log_notice
# define log_notice(FMT, ARG...) do{}while(0)
# define log_notice_F(FMT, ARG...) do{}while(0)
# endif
# ifndef log_info
# define log_info(FMT, ARG...) do{}while(0)
# define log_info_F(FMT, ARG...) do{}while(0)
# endif
# ifndef log_debug
# define log_debug(FMT, ARG...) do{}while(0)
# define log_debug_F(FMT, ARG...) do{}while(0)
# endif
# ifndef ENTER
# define ENTER /*nop*/
# endif
# ifndef LEAVE
# define LEAVE /*nop*/
# endif
# ifdef __cplusplus
};
# endif
#endif /* LOGGING_H_ */