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#include <windows.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <process.h>
#include <iostream.h>
#include <conio.h>

static int runFlag = TRUE;

DWORD WINAPI threadWork(LPVOID threadNo)
{
    double y;
    const double x = 3.14159;
    const double e = 2.7183;
    int i;
    const int napTime = 1000; 
    const int busyTime = 40000;
    DWORD result = 0;
    
    while(runFlag)
    {
        for(i = 0; i < busyTime; i++)
            y = pow(x, e);                
        Sleep(napTime);
        cout << "Thread Awake" << endl;
    }
    return result;
}

//*******************************************************************************************************//

int main(int argc, char* argv[])
{    
    if(argc<3)   //number of threads and time
    {
        //cout translates to: Error, you can only use 2 variables(nr. of threads & time)
                cout<< "Villa, thu matt adeins nota 2 faeribreytur (fjoldi & timi)!"<< endl;
        getch();
        return 0;
    }

    int fjoldi_thrada;                    //number_of_threads
    unsigned int runTime;
    fjoldi_thrada = atoi(argv[1]);
    runTime = atoi(argv[2]);

    SYSTEMTIME now;
    WORD stopTimeMinute, stopTimeSecond;

    GetSystemTime(&now);

    cout<<"mthread: Suite starting at system time: "<<now.wHour<<":"<<now.wMinute<<":"<<now.wSecond<<endl;
    stopTimeSecond = (now.wSecond + (WORD) runTime) & 60;
    stopTimeMinute = now.wMinute + (now.wSecond + (WORD) runTime) /60;
    
    int arg;

    DWORD targetThreadID;

    for(int i = 0; i < fjoldi_thrada; i++)
    {
        _beginthreadex(NULL, 0, (unsigned(_stdcall *)(void*))threadWork, &arg,0,(unsigned *) &targetThreadID);
        Sleep(100);
        cout << "Process Awake" << endl;
    }


    while(runFlag)
    {
        cout << "Check" << endl;

        GetSystemTime(&now);
        if((now.wMinute >= stopTimeMinute) && (now.wSecond >= stopTimeSecond))
            runFlag = FALSE;
            Sleep(1000);    
    }
        cout << "Sleep" << endl;
        Sleep(5000);
        getch();
        return 0;
}