Point Cloud Library (PCL) 1.12.1
time_cpu.h
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35
36#pragma once
37
38#include <iostream>
39#include <cmath>
40#include <string>
41
42#ifdef _WIN32
43# define NOMINMAX
44# define WIN32_LEAN_AND_MEAN
45# include <Windows.h>
46# include <time.h>
47#else
48# include <sys/time.h>
49#endif
50
51/////////////////////////////////////////////////////////////////////
52// Note: this file is here because NVCC can't deal with all boost
53// things, e.g. the new pcl::ScopeTime implementation
54/////////////////////////////////////////////////////////////////////
55
56namespace pcl
57{
58 namespace cuda
59 {
60 /**
61 * \brief Class to measure the time spent in a scope
62 *
63 * To use this class, e.g. to measure the time spent in a function,
64 * just create an instance at the beginning of the function.
65 * \ingroup common
66 */
68 {
69 public:
70 inline ScopeTimeCPU (const char* title);
71 inline ~ScopeTimeCPU ();
72 private:
73 std::string title_;
74 double start_time_;
75 };
76
77
78#ifndef MEASURE_FUNCTION_TIME
79#define MEASURE_FUNCTION_TIME \
80 ScopeTimeCPU scopeTime(__func__)
81#endif
82
83 inline double getTime ();
84
85/// Executes code, only if secs are gone since last exec.
86#ifndef DO_EVERY_TS
87#define DO_EVERY_TS(secs, currentTime, code) \
88if (1) {\
89 static double s_lastDone_ = 0.0; \
90 double s_now_ = (currentTime); \
91 if (s_lastDone_ > s_now_) \
92 s_lastDone_ = s_now_; \
93 if (s_now_ - s_lastDone_ > (secs)) { \
94 code; \
95 s_lastDone_ = s_now_; \
96 }\
97} else \
98 (void)0
99#endif
100
101/// Executes code, only if secs are gone since last exec.
102#ifndef DO_EVERY
103#define DO_EVERY(secs, code) \
104 DO_EVERY_TS(secs, pcl::cuda::getTime(), code)
105#endif
106
107 } // end namespace
108} // end namespace
109
110
111inline double
113{
114#ifdef _WIN32
115 LARGE_INTEGER frequency;
116 LARGE_INTEGER timer_tick;
117 QueryPerformanceFrequency(&frequency);
118 QueryPerformanceCounter(&timer_tick);
119 return (double)(timer_tick.QuadPart)/(double)frequency.QuadPart;
120#else
121 timeval current_time;
122 gettimeofday (&current_time, nullptr);
123 return (current_time.tv_sec + 1e-6 * current_time.tv_usec);
124#endif
125}
126
127inline pcl::cuda::ScopeTimeCPU::ScopeTimeCPU (const char* title) : title_ (title)
128{
129 start_time_ = pcl::cuda::getTime ();
130}
131
133{
134 double end_time = pcl::cuda::getTime ();
135 double duration = end_time - start_time_;
136 std::cerr << title_ << " took " << 1000 * duration << "ms. " << std::endl;
137}
Class to measure the time spent in a scope.
Definition: time_cpu.h:68
ScopeTimeCPU(const char *title)
Definition: time_cpu.h:127
double getTime()
Definition: time_cpu.h:112