| 1 | //
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| 2 | // ********************************************************************
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| 3 | // * License and Disclaimer *
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| 4 | // * *
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| 5 | // * The Geant4 software is copyright of the Copyright Holders of *
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| 6 | // * the Geant4 Collaboration. It is provided under the terms and *
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| 7 | // * conditions of the Geant4 Software License, included in the file *
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| 8 | // * LICENSE and available at http://cern.ch/geant4/license . These *
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| 9 | // * include a list of copyright holders. *
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| 10 | // * *
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| 11 | // * Neither the authors of this software system, nor their employing *
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| 12 | // * institutes,nor the agencies providing financial support for this *
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| 13 | // * work make any representation or warranty, express or implied, *
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| 14 | // * regarding this software system or assume any liability for its *
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| 15 | // * use. Please see the license in the file LICENSE and URL above *
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| 16 | // * for the full disclaimer and the limitation of liability. *
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| 17 | // * *
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| 18 | // * This code implementation is the result of the scientific and *
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| 19 | // * technical work of the GEANT4 collaboration. *
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| 20 | // * By using, copying, modifying or distributing the software (or *
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| 21 | // * any work based on the software) you agree to acknowledge its *
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| 22 | // * use in resulting scientific publications, and indicate your *
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| 23 | // * acceptance of all terms of the Geant4 Software license. *
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| 24 | // ********************************************************************
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| 25 | //
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| 26 | //
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| 27 | // $Id: G4Timer.cc,v 1.15 2006/06/29 19:04:30 gunter Exp $
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| 28 | // GEANT4 tag $Name: geant4-09-04-beta-01 $
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| 29 | //
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| 30 | //
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| 31 | // ----------------------------------------------------------------------
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| 32 | // class G4Timer
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| 33 | //
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| 34 | // Implementation
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| 35 | // 29.04.97 G.Cosmo Added timings for Windows systems
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| 36 |
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| 37 | #include "G4Timer.hh"
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| 38 | #include "G4ios.hh"
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| 39 |
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| 40 | #undef times
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| 41 |
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| 42 | // Global error function
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| 43 | void G4Exception(const char* s=0);
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| 44 |
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| 45 | #if defined(IRIX6_2)
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| 46 | # if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE_EXTENDED==1)
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| 47 | # define __vfork vfork
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| 48 | # endif
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| 49 | #endif
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| 50 |
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| 51 | #ifdef WIN32
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| 52 | # include <sys/types.h>
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| 53 | # include <windows.h>
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| 54 |
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| 55 | // extract milliseconds time unit
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| 56 | int sysconf(int a){
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| 57 | if( a == _SC_CLK_TCK ) return 1000;
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| 58 | else return 0;
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| 59 | }
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| 60 |
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| 61 | static clock_t filetime2msec( FILETIME* t ){
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| 62 |
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| 63 | return (clock_t)((((float)t->dwHighDateTime)*429496.7296)+
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| 64 | (((float)t->dwLowDateTime)*.0001) );
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| 65 | }
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| 66 |
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| 67 |
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| 68 | clock_t times(struct tms * t){
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| 69 | FILETIME ct = {0,0}, et = {0,0}, st = {0,0}, ut = {0,0}, rt = {0,0};
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| 70 | SYSTEMTIME realtime;
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| 71 |
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| 72 | GetSystemTime( &realtime );
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| 73 | SystemTimeToFileTime( &realtime, &rt ); // get real time in 10^-9 sec
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| 74 | if( t != 0 ){
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| 75 | GetProcessTimes( GetCurrentProcess(), &ct, &et, &st, &ut);// get process time in 10^-9 sec
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| 76 | t->tms_utime = t->tms_cutime = filetime2msec(&ut);
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| 77 | t->tms_stime = t->tms_cstime = filetime2msec(&st);
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| 78 | }
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| 79 | return filetime2msec(&rt);
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| 80 | }
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| 81 | #endif /* WIN32 */
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| 82 |
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| 83 | // Print timer status n std::ostream
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| 84 | std::ostream& operator << (std::ostream& os, const G4Timer& t)
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| 85 | {
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| 86 | if (t.IsValid())
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| 87 | {
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| 88 | os << "User=" << t.GetUserElapsed()
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| 89 | << "s Real=" << t.GetRealElapsed()
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| 90 | << "s Sys=" << t.GetSystemElapsed() << "s";
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| 91 | }
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| 92 | else
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| 93 | {
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| 94 | os << "User=****s Real=****s Sys=****s";
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| 95 | }
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| 96 | return os;
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| 97 | }
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| 98 |
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| 99 | G4Timer::G4Timer()
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| 100 | : fValidTimes(false)
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| 101 | {
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| 102 | }
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| 103 |
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| 104 | G4double G4Timer::GetRealElapsed() const
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| 105 | {
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| 106 | if (!fValidTimes)
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| 107 | {
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| 108 | G4Exception("G4Timer::GetRealElapsed - Timer not stopped or times not recorded");
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| 109 | }
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| 110 | G4double diff=fEndRealTime-fStartRealTime;
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| 111 | return diff/sysconf(_SC_CLK_TCK);
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| 112 | }
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| 113 |
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| 114 |
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| 115 | G4double G4Timer::GetSystemElapsed() const
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| 116 | {
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| 117 | if (!fValidTimes)
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| 118 | {
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| 119 | G4Exception("G4Timer::GetSystemElapsed - Timer not stopped or times not recorded");
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| 120 | }
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| 121 | G4double diff=fEndTimes.tms_stime-fStartTimes.tms_stime;
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| 122 | return diff/sysconf(_SC_CLK_TCK);
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| 123 | }
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| 124 |
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| 125 | G4double G4Timer::GetUserElapsed() const
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| 126 | {
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| 127 | if (!fValidTimes)
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| 128 | {
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| 129 | G4Exception("G4Timer::GetUserElapsed - Timer not stopped or times not recorded");
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| 130 | }
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| 131 | G4double diff=fEndTimes.tms_utime-fStartTimes.tms_utime;
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| 132 | return diff/sysconf(_SC_CLK_TCK);
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| 133 | }
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| 134 |
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