| Geant4 Cross Reference |
>> 1 // This code implementation is the intellectual property of
>> 2 // the GEANT4 collaboration.
1 // 3 //
2 // ******************************************* << 4 // By copying, distributing or modifying the Program (or any work
3 // * License and Disclaimer << 5 // based on the Program) you indicate your acceptance of this statement,
4 // * << 6 // and all its terms.
5 // * The Geant4 software is copyright of th << 7 //
6 // * the Geant4 Collaboration. It is provided << 8 // $Id: G4Timer.hh,v 1.8 1999/11/23 15:00:03 gcosmo Exp $
7 // * conditions of the Geant4 Software License << 9 // GEANT4 tag $Name: geant4-01-00 $
8 // * LICENSE and available at http://cern.ch/ << 10 //
9 // * include a list of copyright holders. << 11 //
10 // * << 12 // ----------------------------------------------------------------------
11 // * Neither the authors of this software syst << 13 // Class G4Timer
12 // * institutes,nor the agencies providing fin <<
13 // * work make any representation or warran <<
14 // * regarding this software system or assum <<
15 // * use. Please see the license in the file <<
16 // * for the full disclaimer and the limitatio <<
17 // * <<
18 // * This code implementation is the result <<
19 // * technical work of the GEANT4 collaboratio <<
20 // * By using, copying, modifying or distri <<
21 // * any work based on the software) you ag <<
22 // * use in resulting scientific publicati <<
23 // * acceptance of all terms of the Geant4 Sof <<
24 // ******************************************* <<
25 // <<
26 // G4Timer <<
27 // 14 //
28 // Class description: 15 // Class description:
29 // 16 //
30 // Class for timer objects, able to measure el 17 // Class for timer objects, able to measure elasped user/system process time.
31 // 18 //
32 // Note: Uses <sys/times.h> & <unistd.h> - POS 19 // Note: Uses <sys/times.h> & <unistd.h> - POSIX.1 defined
33 // If used, this header must be included <<
34 // must be the first header file to be i <<
35 // 20 //
36 // Member functions: 21 // Member functions:
37 // 22 //
38 // G4Timer() 23 // G4Timer()
39 // Construct a timer object 24 // Construct a timer object
40 // Start() 25 // Start()
41 // Start timing 26 // Start timing
42 // Stop() 27 // Stop()
43 // Stop timing 28 // Stop timing
44 // G4bool IsValid() 29 // G4bool IsValid()
45 // Return true if have a valid time (ie star 30 // Return true if have a valid time (ie start() and stop() called)
46 // G4double GetRealElapsed() 31 // G4double GetRealElapsed()
47 // Return the elapsed real time between last 32 // Return the elapsed real time between last calling start() and stop()
48 // G4double GetSystemElapsed() 33 // G4double GetSystemElapsed()
49 // Return the elapsed system time between la 34 // Return the elapsed system time between last calling start() and stop()
50 // G4double GetUserElapsed() 35 // G4double GetUserElapsed()
51 // Return the elapsed user time between last 36 // Return the elapsed user time between last calling start() and stop()
52 // 37 //
53 // Operators: 38 // Operators:
54 // 39 //
55 // std::ostream& operator << (std::ostream& os << 40 // ostream& operator << (ostream& os, const G4Timer& t);
56 // Print the elapsed real,system and usertim 41 // Print the elapsed real,system and usertimes on os. Prints **s for times
57 // if !IsValid 42 // if !IsValid
58 // 43 //
59 // Member data: 44 // Member data:
60 // 45 //
61 // G4bool fValidTimes 46 // G4bool fValidTimes
62 // True after start and stop have both been 47 // True after start and stop have both been called more than once and
63 // an equal number of times 48 // an equal number of times
64 // clock_t fStartRealTime,fEndRealTime 49 // clock_t fStartRealTime,fEndRealTime
65 // Real times (arbitrary time 0) 50 // Real times (arbitrary time 0)
66 // tms fStartTimes,fEndTimes 51 // tms fStartTimes,fEndTimes
67 // Timing structures (see times(2)) for star 52 // Timing structures (see times(2)) for start and end times
68 53
69 // Author: P.Kent, 21.08.95 - First implementa << 54 // History:
70 // Revision: G.Cosmo, 29.04.97 - Added timings << 55 // 23.08.96 P.Kent Updated to also computed real elapsed time
71 // ------------------------------------------- << 56 // 21.08.95 P.Kent
>> 57 // 29.04.97 G.Cosmo Added timings for Windows/NT
>> 58
72 #ifndef G4TIMER_HH 59 #ifndef G4TIMER_HH
73 #define G4TIMER_HH 1 << 60 #define G4TIMER_HH
74 61
75 #if !(defined(WIN32) || defined(__MINGW32__)) << 62 #ifndef WIN32
76 # include <sys/times.h> <<
77 # include <unistd.h> 63 # include <unistd.h>
>> 64 # include <sys/times.h>
78 #else 65 #else
79 # include <time.h> 66 # include <time.h>
80 # define _SC_CLK_TCK 1 << 67 # define _SC_CLK_TCK 1
81 68
82 extern "C" << 69 extern "C" {
83 { << 70 int sysconf(int);
84 int sysconf(int); << 71 };
85 }; << 72
>> 73 // Structure returned by times()
>> 74
>> 75 struct tms {
>> 76 clock_t tms_utime; /* user time */
>> 77 clock_t tms_stime; /* system time */
>> 78 clock_t tms_cutime; /* user time, children */
>> 79 clock_t tms_cstime; /* system time, children */
>> 80 };
>> 81
>> 82 extern "C" {
>> 83 extern clock_t times(struct tms *);
>> 84 };
>> 85 #endif /* WIN32 */
86 86
87 // Structure returned by times() << 87 #include "G4Types.hh"
>> 88 #include "G4ios.hh"
88 89
89 struct tms << 90 class G4Timer
90 { 91 {
91 clock_t tms_utime; /* user time */ << 92 public:
92 clock_t tms_stime; /* system time */ << 93 G4Timer() : fValidTimes(false) {;}
93 clock_t tms_cutime; /* user time, children * <<
94 clock_t tms_cstime; /* system time, children <<
95 }; <<
96 94
97 extern "C" << 95 inline void Start();
98 { << 96 inline void Stop();
99 extern clock_t times(struct tms*); << 97 inline G4bool IsValid() const;
>> 98 G4double GetRealElapsed() const;
>> 99 G4double GetSystemElapsed() const;
>> 100 G4double GetUserElapsed() const;
>> 101 private:
>> 102 G4bool fValidTimes;
>> 103 clock_t fStartRealTime,fEndRealTime;
>> 104 tms fStartTimes,fEndTimes;
100 }; 105 };
101 #endif /* WIN32 */ <<
102 106
103 #include "G4Types.hh" << 107 G4std::ostream& operator << (G4std::ostream& os, const G4Timer& t);
104 #include "G4ios.hh" <<
105 108
106 #include <chrono> << 109 // Inline functions:
107 110
108 class G4Timer << 111 inline void G4Timer::Start()
109 { 112 {
110 public: << 113 fValidTimes=false;
111 inline void Start(); << 114 fStartRealTime=times(&fStartTimes);
112 inline void Stop(); << 115 }
113 inline G4bool IsValid() const; <<
114 inline const char* GetClockTime() const; <<
115 G4double GetRealElapsed() const; <<
116 G4double GetSystemElapsed() const; <<
117 G4double GetUserElapsed() const; <<
118 <<
119 private: <<
120 G4bool fValidTimes{false}; <<
121 using clock_type = std::chrono::high_resolut <<
122 std::chrono::time_point<clock_type> fStartRe <<
123 tms fStartTimes, fEndTimes; <<
124 }; <<
125 116
126 std::ostream& operator<<(std::ostream& os, con << 117 inline void G4Timer::Stop()
>> 118 {
>> 119 fEndRealTime=times(&fEndTimes);
>> 120 fValidTimes=true;
>> 121 }
127 122
128 #include "G4Timer.icc" << 123 inline G4bool G4Timer::IsValid() const
>> 124 {
>> 125 return fValidTimes;
>> 126 }
129 127
>> 128 #ifdef G4USE_STL
>> 129 #define times ostimes
130 #endif 130 #endif
>> 131
>> 132 #endif
>> 133
131 134