00001 /*======================================================================= 00002 *** THE CONTENT OF THIS WORK IS PROPRIETARY TO FEI S.A.S, (FEI S.A.S.), *** 00003 *** AND IS DISTRIBUTED UNDER A LICENSE AGREEMENT. *** 00004 *** *** 00005 *** REPRODUCTION, DISCLOSURE, OR USE, IN WHOLE OR IN PART, OTHER THAN AS *** 00006 *** SPECIFIED IN THE LICENSE ARE NOT TO BE UNDERTAKEN EXCEPT WITH PRIOR *** 00007 *** WRITTEN AUTHORIZATION OF FEI S.A.S. *** 00008 *** *** 00009 *** RESTRICTED RIGHTS LEGEND *** 00010 *** USE, DUPLICATION, OR DISCLOSURE BY THE GOVERNMENT OF THE CONTENT OF THIS *** 00011 *** WORK OR RELATED DOCUMENTATION IS SUBJECT TO RESTRICTIONS AS SET FORTH IN *** 00012 *** SUBPARAGRAPH (C)(1) OF THE COMMERCIAL COMPUTER SOFTWARE RESTRICTED RIGHT *** 00013 *** CLAUSE AT FAR 52.227-19 OR SUBPARAGRAPH (C)(1)(II) OF THE RIGHTS IN *** 00014 *** TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 52.227-7013. *** 00015 *** *** 00016 *** COPYRIGHT (C) 1996-2020 BY FEI S.A.S, *** 00017 *** BORDEAUX, FRANCE *** 00018 *** ALL RIGHTS RESERVED *** 00019 **=======================================================================*/ 00020 /*======================================================================= 00021 ** Author : VSG (MMM YYYY) 00022 **=======================================================================*/ 00023 // SbElapsedTime.h 00024 00025 #ifndef _SB_ELAPSED_TIME_H_ 00026 #define _SB_ELAPSED_TIME_H_ 00027 00028 #include <Inventor/SbBase.h> 00029 #include <Inventor/SbTime.h> 00030 #include <Inventor/STL/iostream> 00031 00046 class SbElapsedTime { 00047 00048 public: 00052 SbElapsedTime(); 00053 00057 void reset(); 00058 00062 double getElapsed() const; 00063 00067 SbTime getElapsedTime() const; 00068 00069 private: 00070 00077 static uint64_t getTimeStamp(); 00078 00082 friend std::ostream& operator << (std::ostream& os, const SbElapsedTime& t); 00083 00084 private: 00088 static SbBool hasHiResTimer(); 00089 00090 // Does this system have a hi-res timer? 00091 static SbBool haveHiRes; 00092 00093 // Set by constructor and reset method 00094 SbTime m_startTime; 00095 00096 #ifdef _WIN32 00097 // Frequency of high performance counter 00098 static double m_frequency; 00099 00100 // Set by constructor and reset method 00101 LARGE_INTEGER m_startCount; 00102 #endif 00103 #ifdef sun 00104 // Set by constructor and reset method 00105 hrtime_t m_startCount; 00106 #endif 00107 }; 00108 00109 #endif //_SB_ELAPSED_TIME_H_ 00110 00111