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#include "stdafx.h"
/*
This file is a part of KMC software distributed under GNU GPL 3 licence.
The homepage of the KMC project is http://sun.aei.polsl.pl/kmc
The source codes are based on codes written by Dennis and published:
http://allmybrain.com/2008/06/10/timing-cc-code-on-linux/
Version: 3.1.1
Date : 2019-05-19
*/
#ifdef WIN32
#include <windows.h>
#endif
#include <cstdio> // NULL
#include "timer.h"
#ifdef WIN32
double CStopWatch::LIToSecs(LARGE_INTEGER & L) {
return ((double)L.QuadPart / (double)frequency.QuadPart);
}
CStopWatch::CStopWatch(){
timer.start.QuadPart = 0;
timer.stop.QuadPart = 0;
QueryPerformanceFrequency(&frequency);
}
void CStopWatch::startTimer() {
QueryPerformanceCounter(&timer.start);
}
void CStopWatch::stopTimer() {
QueryPerformanceCounter(&timer.stop);
}
double CStopWatch::getElapsedTime() {
LARGE_INTEGER time;
time.QuadPart = timer.stop.QuadPart - timer.start.QuadPart;
return LIToSecs(time);
}
// **********************************************************
// CThreadWatch
// **********************************************************
double CThreadWatch::LIToSecs(LARGE_INTEGER & L)
{
return ((double)L.QuadPart / (double)frequency.QuadPart);
}
// **********************************************************
CThreadWatch::CThreadWatch()
{
timer_kernel.start.QuadPart = 0;
timer_kernel.stop.QuadPart = 0;
timer_user.start.QuadPart = 0;
timer_user.stop.QuadPart = 0;
// QueryPerformanceFrequency( &frequency );
// frequency = 1; // 100ns
}
// **********************************************************
void CThreadWatch::startTimer()
{
FILETIME CreationTime, ExitTime, KernelTime, UserTime;
GetThreadTimes(GetCurrentThread(), &CreationTime, &ExitTime, &KernelTime, &UserTime);
timer_kernel.start.LowPart = KernelTime.dwLowDateTime;
timer_kernel.start.HighPart = KernelTime.dwHighDateTime;
timer_user.start.LowPart = UserTime.dwLowDateTime;
timer_user.start.HighPart = UserTime.dwHighDateTime;
}
// **********************************************************
void CThreadWatch::stopTimer()
{
FILETIME CreationTime, ExitTime, KernelTime, UserTime;
GetThreadTimes(GetCurrentThread(), &CreationTime, &ExitTime, &KernelTime, &UserTime);
// QueryPerformanceCounter(&timer.stop);
timer_kernel.stop.LowPart = KernelTime.dwLowDateTime;
timer_kernel.stop.HighPart = KernelTime.dwHighDateTime;
timer_user.stop.LowPart = UserTime.dwLowDateTime;
timer_user.stop.HighPart = UserTime.dwHighDateTime;
}
// **********************************************************
double CThreadWatch::getElapsedTime()
{
/* LARGE_INTEGER time;
time.QuadPart = timer.stop.QuadPart - timer.start.QuadPart;
return LIToSecs( time) ;*/
LARGE_INTEGER time;
time.QuadPart = (timer_kernel.stop.QuadPart - timer_kernel.start.QuadPart);
time.QuadPart += (timer_user.stop.QuadPart - timer_user.start.QuadPart);
return (double)time.QuadPart / 1e7; // 100ns clock
}
#else
#include <cstring>
CStopWatch::CStopWatch() {
memset(&timer, 0, sizeof(timer));
}
void CStopWatch::startTimer() {
gettimeofday(&(timer.start), nullptr);
}
void CStopWatch::stopTimer() {
gettimeofday(&(timer.stop), nullptr);
}
double CStopWatch::getElapsedTime() {
timeval res;
timersub(&(timer.stop), &(timer.start), &res);
return res.tv_sec + res.tv_usec / 1000000.0; // 10^6 uSec per second
}
/*double CThreadWatch::LIToSecs( LARGE_INTEGER & L)
{
return 1.0;
}*/
#ifndef __APPLE__
// **********************************************************
CThreadWatch::CThreadWatch()
{
}
// **********************************************************
void CThreadWatch::startTimer()
{
rusage usage;
getrusage(RUSAGE_THREAD, &usage);
start_user = usage.ru_utime;
start_kernel = usage.ru_stime;
}
// **********************************************************
void CThreadWatch::stopTimer()
{
rusage usage;
getrusage(RUSAGE_THREAD, &usage);
stop_user = usage.ru_utime;
stop_kernel = usage.ru_stime;
}
// **********************************************************
double CThreadWatch::getElapsedTime()
{
double ret = 0.0;
ret += stop_user.tv_sec + stop_user.tv_usec / 1000000.0;
ret += stop_kernel.tv_sec + stop_kernel.tv_usec / 1000000.0;
ret -= start_user.tv_sec + start_user.tv_usec / 1000000.0;
ret -= start_kernel.tv_sec + start_kernel.tv_usec / 1000000.0;
return ret;
}
#endif
#endif
// ***** EOF
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