timing.h
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1 /* emacs edit mode for this file is -*- C++ -*- */
2 
3 /* It should be possible to include this file multiple times for different */
4 /* settings of TIMING */
5 
6 #undef TIMING_START
7 #undef TIMING_END
8 #undef TIMING_END_AND_PRINT
9 #undef TIMING_DEFINE_PRINT
10 #undef TIMING_DEFINE_PRINTPROTO
11 #undef TIMING_PRINT
12 
13 #ifdef TIMING
14 #include <time.h>
15 #if ! defined(WINNT) || defined(__GNUC__)
16 #include <sys/times.h>
17 #include <sys/param.h>
18 #endif
19 #ifndef NOSTREAMIO
20 #ifdef HAVE_CSTDIO
21 #include <cstdio>
22 #else
23 #include <stdio.h>
24 #endif
25 #endif
26 
27 // need to be adjusted on your machine:
28 // the number of ticks per second: HZ
29 #if ! defined (HZ) && defined (CLOCKS_PER_SEC)
30 #define HZ CLOCKS_PER_SEC
31 #endif
32 #if ! defined (HZ) && defined (CLK_TCK)
33 #define HZ CLK_TCK
34 #endif
35 #ifndef HZ
36 #ifdef sun
37 #define HZ 60.0
38 #else
39 #define HZ 100.0
40 #endif
41 #endif
42 
43 #if defined(WINNT) && ! defined(__GNUC__)
44 
45 #define TIMING_START(t) timing_ ## t ## _start = clock();
46 #define TIMING_END(t) timing_ ## t ## _end = clock(); \
47 timing_ ## t ## _time += timing_ ## t ## _end - timing_ ## t ## _start;
48 #define TIMING_END_AND_PRINT(t, msg) times( &timing_ ## t ## _end ); \
49  fprintf( stderr, "%s%.2f sec\n", msg, \
50  float( timing_ ## t ## _end - timing_ ## t ## _start ) / HZ ); \
51  timing_ ## t ## _time += timing_ ## t ## _end - timing_ ## t ## _start;
52 #define TIMING_DEFINE_PRINT(t) static clock_t timing_ ## t ## _start, timing_ ## t ## _end; \
53 static clock_t timing_ ## t ## _time; \
54 static void timing_print_ ## t ( char * msg ) { \
55  fprintf( stderr, "%s%.2f sec\n", msg, float(timing_ ## t ## _time) / HZ ); \
56 } \
57 static void timing_reset_ ## t () { \
58  timing_ ## t ## _time = 0; \
59 }
60 
61 #else /* ! WINNT */
62 
63 #define TIMING_START(t) times( &timing_ ## t ## _start );
64 #define TIMING_END(t) times( &timing_ ## t ## _end ); \
65  timing_ ## t ## _time += timing_ ## t ## _end.tms_utime - timing_ ## t ## _start.tms_utime;
66 #define TIMING_END_AND_PRINT(t, msg) times( &timing_ ## t ## _end ); \
67  fprintf( stderr, "%s%.2f sec\n", msg, \
68  float( timing_ ## t ## _end.tms_utime - timing_ ## t ## _start.tms_utime ) / HZ ); \
69  timing_ ## t ## _time += timing_ ## t ## _end.tms_utime - timing_ ## t ## _start.tms_utime;
70 #define TIMING_DEFINE_PRINT(t) static struct tms timing_ ## t ## _start, timing_ ## t ## _end; \
71 static long timing_ ## t ## _time; \
72 static void timing_print_ ## t ( char * msg ) { \
73  fprintf( stderr, "%s%.2f sec\n", msg, float(timing_ ## t ## _time) / HZ ); \
74 } \
75 static void timing_reset_ ## t () { \
76  timing_ ## t ## _time = 0; \
77 }
78 #endif /* ! WINNT */
79 
80 /* macros common to all platforms */
81 #define TIMING_DEFINE_PRINTPROTO(t) void timing_print_ ## t ( char * ); \
82  void timing_reset_ ## t ();
83 #define TIMING_PRINT(t, msg) timing_print_ ## t ( msg );
84 #define TIMING_RESET(t) timing_reset_ ## t ();
85 
86 #else /* TIMING */
87 #define TIMING_START(t)
88 #define TIMING_END(t)
89 #define TIMING_END_AND_PRINT(t, msg)
90 #define TIMING_DEFINE_PRINT(t)
91 #define TIMING_DEFINE_PRINTPROTO(t)
92 #define TIMING_PRINT(t, msg)
93 #define TIMING_RESET(t)
94 #endif /* TIMING */