logging.h

   1 /*
   2  * logging.h
   3  *
   4  * Userspace devfs
   5  *
   6  * Copyright (C) 2003 Greg Kroah-Hartman <greg@kroah.com>
   7  * Copyright (C) 2004 Kay Sievers <kay.sievers@vrfy.org>
   8  *
   9  *      This program is free software; you can redistribute it and/or modify it
  10  *      under the terms of the GNU General Public License as published by the
  11  *      Free Software Foundation version 2 of the License.
  12  *
  13  *      This program is distributed in the hope that it will be useful, but
  14  *      WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  *      General Public License for more details.
  17  *
  18  *      You should have received a copy of the GNU General Public License along
  19  *      with this program; if not, write to the Free Software Foundation, Inc.,
  20  *      675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  */
  23
  24 #ifndef LOGGING_H
  25 #define LOGGING_H
  26
  27 #define info(format, arg...)            do { } while (0)
  28 #define dbg(format, arg...)             do { } while (0)
  29 #define dbg_parse(format, arg...)       do { } while (0)
  30
  31 #ifdef LOG
  32 #include <syslog.h>
  33
  34 #undef info
  35 #define info(format, arg...)                                                            \
  36         do {                                                                            \
  37                 log_message (LOG_INFO , format , ## arg);                               \
  38         } while (0)
  39
  40 #ifdef DEBUG
  41 #undef dbg
  42 #define dbg(format, arg...)                                                             \
  43         do {                                                                            \
  44                 log_message (LOG_DEBUG , "%s: " format , __FUNCTION__ , ## arg);        \
  45         } while (0)
  46 #endif
  47
  48 /* Parser needs it's own debugging statement, we usually don't care about this at all */
  49 #ifdef DEBUG_PARSER
  50 #undef dbg_parse
  51 #define dbg_parse(format, arg...)                                                       \
  52         do {                                                                            \
  53                 log_message (LOG_DEBUG , "%s: " format , __FUNCTION__ , ## arg);        \
  54         } while (0)
  55 #endif
  56
  57 #endif  /* LOG */
  58
  59 extern int log_message (int level, const char *format, ...)
  60         __attribute__ ((format (printf, 2, 3)));
  61
  62 #endif