Files @ r21584:561d516cfa45
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Location: cpp/openttd-patchpack/source/src/debug.h

rubidium
(svn r26708) -Codechange: replace C preprocessor with all kinds of options to prevent adding certain things to the result and the sed script to remove everything that shouldn't be in the resulting nfo file but came out of the C preprocessor by a small-ish awk program. This means no more breaking if a C preprocessor decides to add more data to the processed file (like GCC's inclusion of stdc-predef.h when not passing -nostdinc). It furthermore more than halfs the time needed for the assemble step of the extra GRF compilation
/* $Id$ */

/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */

/** @file debug.h Functions related to debugging. */

#ifndef DEBUG_H
#define DEBUG_H

#include "cpu.h"

/* Debugging messages policy:
 * These should be the severities used for direct DEBUG() calls
 * maximum debugging level should be 10 if really deep, deep
 * debugging is needed.
 * (there is room for exceptions, but you have to have a good cause):
 * 0   - errors or severe warnings
 * 1   - other non-fatal, non-severe warnings
 * 2   - crude progress indicator of functionality
 * 3   - important debugging messages (function entry)
 * 4   - debugging messages (crude loop status, etc.)
 * 5   - detailed debugging information
 * 6.. - extremely detailed spamming
 */

#ifdef NO_DEBUG_MESSAGES
	#define DEBUG(name, level, ...) { }
#else /* NO_DEBUG_MESSAGES */
	/**
	 * Output a line of debugging information.
	 * @param name Category
	 * @param level Debugging level, higher levels means more detailed information.
	 */
	#define DEBUG(name, level, ...) if ((level) == 0 || _debug_ ## name ## _level >= (level)) debug(#name, __VA_ARGS__)

	extern int _debug_driver_level;
	extern int _debug_grf_level;
	extern int _debug_map_level;
	extern int _debug_misc_level;
	extern int _debug_net_level;
	extern int _debug_sprite_level;
	extern int _debug_oldloader_level;
	extern int _debug_npf_level;
	extern int _debug_yapf_level;
	extern int _debug_freetype_level;
	extern int _debug_script_level;
	extern int _debug_sl_level;
	extern int _debug_gamelog_level;
	extern int _debug_desync_level;
	extern int _debug_console_level;
#ifdef RANDOM_DEBUG
	extern int _debug_random_level;
#endif

	void CDECL debug(const char *dbg, const char *format, ...) WARN_FORMAT(2, 3);
#endif /* NO_DEBUG_MESSAGES */

char *DumpDebugFacilityNames(char *buf, char *last);
void SetDebugString(const char *s);
const char *GetDebugString();

/* Shorter form for passing filename and linenumber */
#define FILE_LINE __FILE__, __LINE__

/* Used for profiling
 *
 * Usage:
 * TIC();
 *   --Do your code--
 * TOC("A name", 1);
 *
 * When you run the TIC() / TOC() multiple times, you can increase the '1'
 *  to only display average stats every N values. Some things to know:
 *
 * for (int i = 0; i < 5; i++) {
 *   TIC();
 *     --Do your code--
 *   TOC("A name", 5);
 * }
 *
 * Is the correct usage for multiple TIC() / TOC() calls.
 *
 * TIC() / TOC() creates its own block, so make sure not the mangle
 *  it with another block.
 **/
#define TIC() {\
	uint64 _xxx_ = ottd_rdtsc();\
	static uint64 __sum__ = 0;\
	static uint32 __i__ = 0;

#define TOC(str, count)\
	__sum__ += ottd_rdtsc() - _xxx_;\
	if (++__i__ == count) {\
		DEBUG(misc, 0, "[%s] " OTTD_PRINTF64 " [avg: %.1f]", str, __sum__, __sum__/(double)__i__);\
		__i__ = 0;\
		__sum__ = 0;\
	}\
}

void ShowInfo(const char *str);
void CDECL ShowInfoF(const char *str, ...) WARN_FORMAT(1, 2);

const char *GetLogPrefix();

/** The real time in the game. */
extern uint32 _realtime_tick;

#endif /* DEBUG_H */