include/parted/debug.h

   1 /*
   2     libparted - a library for manipulating disk partitions
   3     Copyright (C) 1998-2000, 2002, 2007, 2009-2011 Free Software Foundation,
   4     Inc.
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 3 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #ifndef PED_DEBUG_H_INCLUDED
  21 #define PED_DEBUG_H_INCLUDED
  22
  23 #include <stdarg.h>
  24
  25 #ifdef DEBUG
  26
  27 typedef void (PedDebugHandler) ( const int level, const char* file, int line,
  28                                  const char* function, const char* msg );
  29
  30 extern void ped_debug_set_handler (PedDebugHandler* handler);
  31 extern void ped_debug ( const int level, const char* file, int line,
  32                         const char* function, const char* msg, ... );
  33
  34 extern void __attribute__((__noreturn__))
  35 ped_assert ( const char* cond_text,
  36                          const char* file, int line, const char* function );
  37
  38 #if defined __GNUC__ && !defined __JSFTRACE__
  39
  40 #define PED_DEBUG(level, ...) \
  41         ped_debug ( level, __FILE__, __LINE__, __PRETTY_FUNCTION__, \
  42                     __VA_ARGS__ )
  43
  44 #define PED_ASSERT(cond)                                        \
  45         do {                                                    \
  46                 if (!(cond)) {                                  \
  47                         ped_assert (                            \
  48                           #cond,                                \
  49                           __FILE__,                             \
  50                           __LINE__,                             \
  51                           __PRETTY_FUNCTION__ );                \
  52                 }                                               \
  53         } while (0)
  54
  55 #else /* !__GNUC__ */
  56
  57 /* function because variadic macros are C99 */
  58 static void PED_DEBUG (int level, ...)
  59 {
  60         va_list         va_args;
  61
  62         va_start (va_args, level);
  63         ped_debug ( level, "unknown file", 0, "unknown function", va_args );
  64         va_end (va_args);
  65 }
  66
  67 #define PED_ASSERT(cond)                                        \
  68         do {                                                    \
  69                 if (!(cond)) {                                  \
  70                         ped_assert (                            \
  71                           #cond,                                \
  72                           "unknown",                            \
  73                           0,                                    \
  74                           "unknown");                           \
  75                 }                                               \
  76         } while (0)
  77
  78 #endif /* __GNUC__ */
  79
  80 #else /* !DEBUG */
  81
  82 #define PED_ASSERT(cond)                do {} while (0)
  83 #define PED_DEBUG(level, ...)           do {} while (0)
  84
  85
  86 #endif /* DEBUG */
  87
  88 #endif /* PED_DEBUG_H_INCLUDED */