]> de.git.xonotic.org Git - xonotic/darkplaces.git/blob - timing.h
Add helper header to simplify measuring time spent in a block or statement.
[xonotic/darkplaces.git] / timing.h
1 /*
2 Simple helper macros to time blocks or statements.
3
4 Copyright (C) 2007 Frank Richter
5
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (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.
14
15 See the GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
20
21 */
22
23 #ifndef __TIMING_H__
24 #define __TIMING_H__
25
26 #if defined(DO_TIMING)
27
28 #define TIMING_BEGIN    double _timing_end_, _timing_start_ = Sys_DoubleTime();
29 #define TIMING_END_STR(S)               \
30   _timing_end_ = Sys_DoubleTime();      \
31   Con_Printf ("%s: %.3g s\n", S, _timing_end_ - _timing_start_);
32 #define TIMING_END      TIMING_END_STR(__FUNCTION__)
33
34 #define TIMING_INTERMEDIATE(S)                                          \
35   {                                                                     \
36     double currentTime = Sys_DoubleTime();                              \
37     Con_Printf ("%s: %.3g s\n", S, currentTime - _timing_start_);       \
38   }
39   
40 #define TIMING_TIMESTATEMENT(Stmt)      \
41   {                                     \
42     TIMING_BEGIN                        \
43     Stmt;                               \
44     TIMING_END_STR(#Stmt);              \
45   }
46
47 #else
48
49 #define TIMING_BEGIN
50 #define TIMING_END_STR(S)
51 #define TIMING_END
52 #define TIMING_INTERMEDIATE(S)
53 #define TIMING_TIMESTATEMENT(Stmt)      Stmt
54
55 #endif
56
57 #endif // __TIMING_H__