log.h 752 Bytes
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/*
 * log.h
 * Logging facilities.
 * 
 * Matej Pfajfar <mp292@cam.ac.uk>
 */

#ifndef __LOG_H

#include <syslog.h>

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/* magic to make GCC check for proper format strings. */ 
#ifdef __GNUC__
#define CHECK_PRINTF(formatIdx, firstArg) \
   __attribute__ ((format (printf, formatIdx, firstArg)))
#else
#define CHECK_PRINTF(formatIdx, firstArg) 
#endif 

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/* Outputs a message to stdout and also logs the same message using syslog. */
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void log(int severity, const char *format, ...) CHECK_PRINTF(2,3);
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#ifdef __GNUC__
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void _log_fn(int severity, const char *funcname, const char *format, ...)
     CHECK_PRINTF(3,4);
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#define log_fn(severity, args...) \
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  _log_fn(severity, __PRETTY_FUNCTION__, args)
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#else
#define log_fn log
#endif

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# define __LOG_H
#endif