#!/usr/bin/perl -I/var/www/adp-gmbh/cgi-bin -w

use ADP_CGI;

Title('A Stop Watch class for C++');

Code '#include <windows.h>

class StopWatch {
  LARGE_INTEGER frequency_;
  LARGE_INTEGER startTime_;
  LARGE_INTEGER stopTime_;

public:
  StopWatch();

  void    Start();
  void    Stop();

  __int64 MilliSeconds() const;
};


StopWatch::StopWatch() {
  if (!::QueryPerformanceFrequency(&frequency_)) 
    throw "Error with QueryPerformanceFrequency";
}

void StopWatch::Start() {
  ::QueryPerformanceCounter(&startTime_);
}

void StopWatch::Stop() {
  ::QueryPerformanceCounter(&stopTime_);
}

__int64 StopWatch::MilliSeconds() const {
  return (float)(stopTime_.QuadPart - startTime_.QuadPart) / (float) frequency_.QuadPart * 1000;
}

#include <iostream>
using namespace std;


int main(int argc, char* argv[]) {
  StopWatch stopWatch;

  stopWatch.Start();
  Sleep(1);
  stopWatch.Stop();

  cout << (int) stopWatch.MilliSeconds() << endl;

  return 0;
}
';


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