Visual Servoing Platform  version 3.6.1 under development (2024-05-26)
vpTime.h
1 /*
2  * ViSP, open source Visual Servoing Platform software.
3  * Copyright (C) 2005 - 2023 by Inria. All rights reserved.
4  *
5  * This software is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  * See the file LICENSE.txt at the root directory of this source
10  * distribution for additional information about the GNU GPL.
11  *
12  * For using ViSP with software that can not be combined with the GNU
13  * GPL, please contact Inria about acquiring a ViSP Professional
14  * Edition License.
15  *
16  * See https://visp.inria.fr for more information.
17  *
18  * This software was developed at:
19  * Inria Rennes - Bretagne Atlantique
20  * Campus Universitaire de Beaulieu
21  * 35042 Rennes Cedex
22  * France
23  *
24  * If you have questions regarding the use of this file, please contact
25  * Inria at visp@inria.fr
26  *
27  * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
28  * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
29  *
30  * Description:
31  * Time management and measurement.
32  */
33 
34 #ifndef vpTime_h
35 #define vpTime_h
36 
41 #include <iostream>
42 #include <string>
43 #include <visp3/core/vpConfig.h>
44 #if VISP_CXX_STANDARD >= VISP_CXX_STANDARD_11
45 #include <chrono>
46 #endif
47 
48 #include <visp3/core/vpException.h>
49 
71 namespace vpTime
72 {
73 VISP_EXPORT std::string getDateTime(const std::string &format = "%Y/%m/%d %H:%M:%S");
74 VISP_EXPORT double getMinTimeForUsleepCall();
75 VISP_EXPORT double measureTimeSecond();
76 VISP_EXPORT double measureTimeMs();
77 VISP_EXPORT double measureTimeMicros();
78 VISP_EXPORT void sleepMs(double t);
79 VISP_EXPORT int wait(double t0, double t);
80 VISP_EXPORT void wait(double t);
81 } // namespace vpTime
82 
83 class VISP_EXPORT vpChrono
84 {
85 public:
86  vpChrono();
87 
88  double getDurationMicros();
89  double getDurationMs();
90  double getDurationSeconds();
91  void start(bool reset = true);
92  void stop();
93 
94 private:
95  double m_durationMs;
96 #if (VISP_CXX_STANDARD > VISP_CXX_STANDARD_98) && (defined(_MSC_VER) && _MSC_VER >= 1900 /* VS2015 */ || !defined(_MSC_VER))
97  std::chrono::steady_clock::time_point m_lastTimePoint;
98 #else
99  double m_lastTimePoint;
100 #endif
101 };
102 
103 #endif
Time management and measurement.
Definition: vpTime.h:72
VISP_EXPORT int wait(double t0, double t)
VISP_EXPORT double measureTimeMicros()
VISP_EXPORT double getMinTimeForUsleepCall()
VISP_EXPORT double measureTimeSecond()
VISP_EXPORT void sleepMs(double t)
VISP_EXPORT std::string getDateTime(const std::string &format="%Y/%m/%d %H:%M:%S")
VISP_EXPORT double measureTimeMs()