messages.h

   1 /*
   2  * This program is free software; you can redistribute it and/or
   3  * modify it under the terms of the GNU General Public
   4  * License v2 as published by the Free Software Foundation.
   5  *
   6  * This program is distributed in the hope that it will be useful,
   7  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   8  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   9  * General Public License for more details.
  10  *
  11  * You should have received a copy of the GNU General Public
  12  * License along with this program; if not, write to the
  13  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  14  * Boston, MA 021110-1307, USA.
  15  */
  16
  17 #ifndef __BTRFS_MESSAGES_H__
  18 #define __BTRFS_MESSAGES_H__
  19
  20 #ifdef DEBUG_VERBOSE_ERROR
  21 #define PRINT_VERBOSE_ERROR     fprintf(stderr, "%s:%d:", __FILE__, __LINE__)
  22 #else
  23 #define PRINT_VERBOSE_ERROR
  24 #endif
  25
  26 #ifdef DEBUG_TRACE_ON_ERROR
  27 #define PRINT_TRACE_ON_ERROR    print_trace()
  28 #else
  29 #define PRINT_TRACE_ON_ERROR
  30 #endif
  31
  32 #ifdef DEBUG_ABORT_ON_ERROR
  33 #define DO_ABORT_ON_ERROR       abort()
  34 #else
  35 #define DO_ABORT_ON_ERROR
  36 #endif
  37
  38 #define error(fmt, ...)                                                 \
  39         do {                                                            \
  40                 PRINT_TRACE_ON_ERROR;                                   \
  41                 PRINT_VERBOSE_ERROR;                                    \
  42                 __btrfs_error((fmt), ##__VA_ARGS__);                    \
  43                 DO_ABORT_ON_ERROR;                                      \
  44         } while (0)
  45
  46 #define error_on(cond, fmt, ...)                                        \
  47         do {                                                            \
  48                 if ((cond))                                             \
  49                         PRINT_TRACE_ON_ERROR;                           \
  50                 if ((cond))                                             \
  51                         PRINT_VERBOSE_ERROR;                            \
  52                 __btrfs_error_on((cond), (fmt), ##__VA_ARGS__);         \
  53                 if ((cond))                                             \
  54                         DO_ABORT_ON_ERROR;                              \
  55         } while (0)
  56
  57 #define error_btrfs_util(err)                                           \
  58         do {                                                            \
  59                 const char *errno_str = strerror(errno);                \
  60                 const char *lib_str = btrfs_util_strerror(err);         \
  61                 PRINT_TRACE_ON_ERROR;                                   \
  62                 PRINT_VERBOSE_ERROR;                                    \
  63                 if (lib_str && strcmp(errno_str, lib_str) != 0)         \
  64                         __btrfs_error("%s: %s", lib_str, errno_str);    \
  65                 else                                                    \
  66                         __btrfs_error("%s", errno_str);                 \
  67                 DO_ABORT_ON_ERROR;                                      \
  68         } while (0)
  69
  70 #define warning(fmt, ...)                                               \
  71         do {                                                            \
  72                 PRINT_TRACE_ON_ERROR;                                   \
  73                 PRINT_VERBOSE_ERROR;                                    \
  74                 __btrfs_warning((fmt), ##__VA_ARGS__);                  \
  75         } while (0)
  76
  77 #define warning_on(cond, fmt, ...)                                      \
  78         do {                                                            \
  79                 if ((cond))                                             \
  80                         PRINT_TRACE_ON_ERROR;                           \
  81                 if ((cond))                                             \
  82                         PRINT_VERBOSE_ERROR;                            \
  83                 __btrfs_warning_on((cond), (fmt), ##__VA_ARGS__);       \
  84         } while (0)
  85
  86 __attribute__ ((format (printf, 1, 2)))
  87 void __btrfs_warning(const char *fmt, ...);
  88
  89 __attribute__ ((format (printf, 1, 2)))
  90 void __btrfs_error(const char *fmt, ...);
  91
  92 __attribute__ ((format (printf, 2, 3)))
  93 int __btrfs_warning_on(int condition, const char *fmt, ...);
  94
  95 __attribute__ ((format (printf, 2, 3)))
  96 int __btrfs_error_on(int condition, const char *fmt, ...);
  97
  98 #endif