Gabriele Cosmo
132 lines
4.1 KiB
C++
132 lines
4.1 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4Timer.cc,v 1.14 2005/03/15 19:11:36 gcosmo Exp $
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// GEANT4 tag $Name: geant4-07-01 $
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//
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//
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// ----------------------------------------------------------------------
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// class G4Timer
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//
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// Implementation
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// 29.04.97 G.Cosmo Added timings for Windows systems
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#include "G4Timer.hh"
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#include "G4ios.hh"
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#undef times
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// Global error function
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void G4Exception(const char* s=0);
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#if defined(IRIX6_2)
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# if defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE_EXTENDED==1)
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# define __vfork vfork
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# endif
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#endif
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#ifdef WIN32
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# include <sys/types.h>
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# include <windows.h>
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// extract milliseconds time unit
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int sysconf(int a){
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if( a == _SC_CLK_TCK ) return 1000;
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else return 0;
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}
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static clock_t filetime2msec( FILETIME* t ){
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return (clock_t)((((float)t->dwHighDateTime)*429496.7296)+
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(((float)t->dwLowDateTime)*.0001) );
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}
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clock_t times(struct tms * t){
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FILETIME ct = {0,0}, et = {0,0}, st = {0,0}, ut = {0,0}, rt = {0,0};
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SYSTEMTIME realtime;
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GetSystemTime( &realtime );
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SystemTimeToFileTime( &realtime, &rt ); // get real time in 10^-9 sec
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if( t != 0 ){
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GetProcessTimes( GetCurrentProcess(), &ct, &et, &st, &ut);// get process time in 10^-9 sec
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t->tms_utime = t->tms_cutime = filetime2msec(&ut);
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t->tms_stime = t->tms_cstime = filetime2msec(&st);
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}
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return filetime2msec(&rt);
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}
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#endif /* WIN32 */
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// Print timer status n std::ostream
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std::ostream& operator << (std::ostream& os, const G4Timer& t)
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{
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if (t.IsValid())
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{
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os << "User=" << t.GetUserElapsed()
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<< "s Real=" << t.GetRealElapsed()
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<< "s Sys=" << t.GetSystemElapsed() << "s";
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}
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else
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{
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os << "User=****s Real=****s Sys=****s";
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}
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return os;
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}
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G4Timer::G4Timer()
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: fValidTimes(false)
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{
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}
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G4double G4Timer::GetRealElapsed() const
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{
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if (!fValidTimes)
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{
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G4Exception("G4Timer::GetRealElapsed - Timer not stopped or times not recorded");
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}
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G4double diff=fEndRealTime-fStartRealTime;
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return diff/sysconf(_SC_CLK_TCK);
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}
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G4double G4Timer::GetSystemElapsed() const
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{
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if (!fValidTimes)
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{
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G4Exception("G4Timer::GetSystemElapsed - Timer not stopped or times not recorded");
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}
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G4double diff=fEndTimes.tms_stime-fStartTimes.tms_stime;
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return diff/sysconf(_SC_CLK_TCK);
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}
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G4double G4Timer::GetUserElapsed() const
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{
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if (!fValidTimes)
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{
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G4Exception("G4Timer::GetUserElapsed - Timer not stopped or times not recorded");
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}
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G4double diff=fEndTimes.tms_utime-fStartTimes.tms_utime;
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return diff/sysconf(_SC_CLK_TCK);
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}
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