src/log.h

   1 /*======================================================================*
   2  * Copyright (C) 2008 Light Weight Event System                         *
   3  * All rights reserved.                                                 *
   4  *                                                                      *
   5  * This program is free software; you can redistribute it and/or modify *
   6  * it under the terms of the GNU General Public License as published by *
   7  * the Free Software Foundation; either version 2 of the License, or    *
   8  * (at your option) any later version.                                  *
   9  *                                                                      *
  10  * This program is distributed in the hope that it will be useful,      *
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
  13  * GNU General Public License for more details.                         *
  14  *                                                                      *
  15  * You should have received a copy of the GNU General Public License    *
  16  * along with this program; if not, write to the Free Software          *
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor,                   *
  18  * Boston, MA 02110-1301 USA.                                           *
  19  *======================================================================*/
  20 #ifndef LOG_H
  21 #define LOG_H
  22
  23 #include "config.h"
  24
  25 #include <stdarg.h>
  26
  27 #ifdef HAVE_SYS_TYPES_H
  28 #include <sys/types.h>
  29 #endif
  30
  31 typedef enum {
  32     LOG_OFF, LOG_ERROR, LOG_WARNING, LOG_INFO, LOG_PROGRESS
  33 } log_level_t;
  34
  35 typedef enum {
  36   LOG_MASK_OFF = (1<<LOG_OFF),
  37   LOG_MASK_ERROR = (1<<LOG_ERROR),
  38   LOG_MASK_WARNING = (1<<LOG_WARNING),
  39   LOG_MASK_INFO = (1<<LOG_INFO),
  40   LOG_MASK_PROGRESS = (1<<LOG_PROGRESS)
  41 } log_mask_t;
  42
  43 /*! \file log.h
  44  *  \brief Functions for logging within the journaller
  45  */
  46
  47 /*! \brief Logs a message
  48  *
  49  *  This method is not usually called directly, instead one of the
  50  *  logging macros is used.
  51  *
  52  *  \param[in] time the UTC time of the log line
  53  *  \param[in] level the level to log
  54  *  \param[in] fname the filename logging this message
  55  *  \param[in] lineno the line number of the file logging this message
  56  *  \param[in] format the format of the message
  57  */
  58 void log_msg(log_level_t level, const char *fname, int lineno, const char* format, ...);
  59 void log_get_mask_string(char* str, int len);
  60
  61 #if defined(HAVE_GCC_MACRO_VARARGS) || defined(HAVE_GNUC_C_VARARGS)
  62 #define LOG_ER(args...)       log_msg(LOG_ERROR,    __FILE__, __LINE__, args)
  63 #define LOG_WARN(args...)     log_msg(LOG_WARNING,  __FILE__, __LINE__, args)
  64 #define LOG_INF(args...)      log_msg(LOG_INFO,     __FILE__, __LINE__, args)
  65 #define LOG_PROG(args...)     log_msg(LOG_PROGRESS, __FILE__, __LINE__, args)
  66 #elif defined(HAVE_ISO_MACRO_VARARGS) || defined(HAVE_ISO_C_VARARGS)
  67 #define LOG_ER(...)           log_msg(LOG_ERROR,    __FILE__, __LINE__, __VA_ARGS__)
  68 #define LOG_WARN(...)         log_msg(LOG_WARNING,  __FILE__, __LINE__, __VA_ARGS__)
  69 #define LOG_INF(...)          log_msg(LOG_INFO,     __FILE__, __LINE__, __VA_ARGS__)
  70 #define LOG_PROG(...)         log_msg(LOG_PROGRESS, __FILE__, __LINE__, __VA_ARGS__)
  71 #else
  72 #error You must have some type (either ISO-C99 or GCC style) of variable argument list for macros.
  73 #endif
  74
  75 #endif