src/debug.h

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file debug.h Functions related to debugging. */
  11
  12 #ifndef DEBUG_H
  13 #define DEBUG_H
  14
  15 #include "cpu.h"
  16
  17 /* Debugging messages policy:
  18  * These should be the severities used for direct DEBUG() calls
  19  * maximum debugging level should be 10 if really deep, deep
  20  * debugging is needed.
  21  * (there is room for exceptions, but you have to have a good cause):
  22  * 0   - errors or severe warnings
  23  * 1   - other non-fatal, non-severe warnings
  24  * 2   - crude progress indicator of functionality
  25  * 3   - important debugging messages (function entry)
  26  * 4   - debugging messages (crude loop status, etc.)
  27  * 5   - detailed debugging information
  28  * 6.. - extremely detailed spamming
  29  */
  30
  31 #ifdef NO_DEBUG_MESSAGES
  32         #define DEBUG(name, level, ...) { }
  33 #else /* NO_DEBUG_MESSAGES */
  34         /**
  35          * Output a line of debugging information.
  36          * @param name Category
  37          * @param level Debugging level, higher levels means more detailed information.
  38          */
  39         #define DEBUG(name, level, ...) if ((level) == 0 || _debug_ ## name ## _level >= (level)) debug(#name, __VA_ARGS__)
  40
  41         extern int _debug_driver_level;
  42         extern int _debug_grf_level;
  43         extern int _debug_map_level;
  44         extern int _debug_misc_level;
  45         extern int _debug_net_level;
  46         extern int _debug_sprite_level;
  47         extern int _debug_oldloader_level;
  48         extern int _debug_yapf_level;
  49         extern int _debug_freetype_level;
  50         extern int _debug_script_level;
  51         extern int _debug_sl_level;
  52         extern int _debug_gamelog_level;
  53         extern int _debug_desync_level;
  54         extern int _debug_console_level;
  55 #ifdef RANDOM_DEBUG
  56         extern int _debug_random_level;
  57 #endif
  58
  59         void CDECL debug(const char *dbg, const char *format, ...) WARN_FORMAT(2, 3);
  60 #endif /* NO_DEBUG_MESSAGES */
  61
  62 char *DumpDebugFacilityNames(char *buf, char *last);
  63 void SetDebugString(const char *s);
  64 const char *GetDebugString();
  65
  66 /* Shorter form for passing filename and linenumber */
  67 #define FILE_LINE __FILE__, __LINE__
  68
  69 /* Used for profiling
  70  *
  71  * Usage:
  72  * TIC();
  73  *   --Do your code--
  74  * TOC("A name", 1);
  75  *
  76  * When you run the TIC() / TOC() multiple times, you can increase the '1'
  77  *  to only display average stats every N values. Some things to know:
  78  *
  79  * for (int i = 0; i < 5; i++) {
  80  *   TIC();
  81  *     --Do your code--
  82  *   TOC("A name", 5);
  83  * }
  84  *
  85  * Is the correct usage for multiple TIC() / TOC() calls.
  86  *
  87  * TIC() / TOC() creates its own block, so make sure not the mangle
  88  *  it with another block.
  89  **/
  90 #define TIC() {\
  91         uint64 _xxx_ = ottd_rdtsc();\
  92         static uint64 __sum__ = 0;\
  93         static uint32 __i__ = 0;
  94
  95 #define TOC(str, count)\
  96         __sum__ += ottd_rdtsc() - _xxx_;\
  97         if (++__i__ == count) {\
  98                 DEBUG(misc, 0, "[%s] " OTTD_PRINTF64 " [avg: %.1f]", str, __sum__, __sum__/(double)__i__);\
  99                 __i__ = 0;\
 100                 __sum__ = 0;\
 101         }\
 102 }
 103
 104 void ShowInfo(const char *str);
 105 void CDECL ShowInfoF(const char *str, ...) WARN_FORMAT(1, 2);
 106
 107 const char *GetLogPrefix();
 108
 109 /** The real time in the game. */
 110 extern uint32 _realtime_tick;
 111
 112 #endif /* DEBUG_H */