deps/lightrec/debug.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 /*
   3  * Copyright (C) 2014-2021 Paul Cercueil <paul@crapouillou.net>
   4  */
   5
   6 #ifndef DEBUG_H
   7 #define DEBUG_H
   8
   9 #include <stdio.h>
  10 #include <unistd.h>
  11
  12 #define NOLOG_L 0
  13 #define ERROR_L 1
  14 #define WARNING_L 2
  15 #define INFO_L 3
  16 #define DEBUG_L 4
  17
  18 #ifndef LOG_LEVEL
  19 #define LOG_LEVEL INFO_L
  20 #endif
  21
  22 // -------------
  23
  24 #ifndef COLOR_DEBUG
  25 #define COLOR_DEBUG   "\e[0;32m"
  26 #endif
  27 #ifndef COLOR_WARNING
  28 #define COLOR_WARNING "\e[01;35m"
  29 #endif
  30 #ifndef COLOR_ERROR
  31 #define COLOR_ERROR   "\e[01;31m"
  32 #endif
  33
  34 #define COLOR_END "\e[0m"
  35
  36 #if (LOG_LEVEL >= DEBUG_L)
  37 # ifdef COLOR_DEBUG
  38 #  define pr_debug(str, ...) do {                                       \
  39         if (isatty(STDOUT_FILENO))                                      \
  40                 fprintf(stdout, COLOR_DEBUG "DEBUG: " str COLOR_END,    \
  41                         ##__VA_ARGS__);                                 \
  42         else                                                            \
  43                 fprintf(stdout, "DEBUG: " str, ##__VA_ARGS__);          \
  44         } while (0)
  45 # else
  46 #  define pr_debug(...) \
  47     fprintf(stdout, "DEBUG: " __VA_ARGS__)
  48 # endif
  49 #else
  50 #define pr_debug(...)
  51 #endif
  52
  53 #if (LOG_LEVEL >= INFO_L)
  54 # ifdef COLOR_INFO
  55 #  define pr_info(str, ...) \
  56     fprintf(stdout, COLOR_INFO str COLOR_END, ##__VA_ARGS__)
  57 # else
  58 #  define pr_info(...) \
  59     fprintf(stdout, __VA_ARGS__)
  60 # endif
  61 #else
  62 #define pr_info(...)
  63 #endif
  64
  65 #if (LOG_LEVEL >= WARNING_L)
  66 # ifdef COLOR_WARNING
  67 #  define pr_warn(str, ...) do {                                        \
  68         if (isatty(STDERR_FILENO))                                      \
  69                 fprintf(stderr, COLOR_WARNING "WARNING: " str COLOR_END,\
  70                         ##__VA_ARGS__);                                 \
  71         else                                                            \
  72                 fprintf(stderr, "WARNING: " str, ##__VA_ARGS__);        \
  73         } while (0)
  74 # else
  75 #  define pr_warn(...) \
  76     fprintf(stderr, "WARNING: " __VA_ARGS__)
  77 # endif
  78 #else
  79 #define pr_warn(...)
  80 #endif
  81
  82 #if (LOG_LEVEL >= ERROR_L)
  83 # ifdef COLOR_ERROR
  84 #  define pr_err(str, ...) do {                                         \
  85         if (isatty(STDERR_FILENO))                                      \
  86                 fprintf(stderr, COLOR_ERROR "ERROR: " str COLOR_END,    \
  87                         ##__VA_ARGS__);                                 \
  88         else                                                            \
  89                 fprintf(stderr, "ERROR: " str, ##__VA_ARGS__);          \
  90         } while (0)
  91 # else
  92 #  define pr_err(...) \
  93     fprintf(stderr, "ERROR: " __VA_ARGS__)
  94 # endif
  95 #else
  96 #define pr_err(...)
  97 #endif
  98
  99 #endif