public double Execute(Seria seria)
{
List <Proces> waiting = new List <Proces>();
List <Proces> executed = new List <Proces>();
int waitingTime = 0;
int length = seria.List.Count();
Proces executing = new Proces(1);
executing.ExecutionTime--;
executed.Add(executing);
int added = 0;
for (int i = 1; executed.Count <= (length + 1); i++)
{
if (seria.List.Count != 0)
{
do
{
if (seria.List.Count == 0)
{
break;
}
if (seria.List.First().ArrivalTime == i)
{
waiting.Add(seria.List.First());
seria.List.Remove(seria.List.First());
}
else
{
break;
}
} while (true);
}
if (executing.ExecutionTime <= 0)
{
if (added == 0)
{
executed.Add(executing);
added = 1;
}
if (waiting.Count != 0)
{
executing = waiting.First();
waiting.Remove(waiting.First());
added = 0;
}
}
executing.ExecutionTime--;
foreach (Proces proces in waiting)
{
proces.WaitingTime++;
}
}
foreach (Proces proces in executed)
{
waitingTime += proces.WaitingTime;
}
return(((double)waitingTime) / length);
}
static void Main(string[] args)
{
int amount, series, algorithm;
Seria[] ser;
CPU_FCFS fcfs = new CPU_FCFS();
CPU_SJF sjf = new CPU_SJF();
CPU_SJF_W sjf_w = new CPU_SJF_W();
CPU_RR rr = new CPU_RR();
while (true)
{
Console.WriteLine("Podaj ilosc procesow: ");
amount = int.Parse(Console.ReadLine());
Console.WriteLine("Podaj ilosc serii: ");
series = int.Parse(Console.ReadLine());
if (amount == 0 || series == 0)
{
break;
}
ser = new Seria[series];
for (int i = 0; i < series; i++)
{
ser[i] = new Seria(amount);
Console.WriteLine("Seria " + i + ":\n");
foreach (Proces proces in ser[i].List)
{
Console.Write("[" + proces.ArrivalTime + "," + proces.ExecutionTime + "] ");
}
Console.Write("\n");
}
bool work = true;
while (work)
{
Console.WriteLine("Wybierz algorytm:\n1. FCFS\n2. SJF\n3. SJF z wywłaszczeniem\n4. Rotacyjny");
algorithm = int.Parse(Console.ReadLine());
switch (algorithm)
{
case 1:
double srednia1 = 0;
for (int i = 0; i < series; i++)
{
Seria seri = new Seria(amount);
for (int j = 0; j < amount; j++)
{
seri.List[j].ArrivalTime = ser[i].List[j].ArrivalTime;
seri.List[j].ExecutionTime = ser[i].List[j].ExecutionTime;
}
double srednia = fcfs.Execute(seri);
srednia1 += srednia;
Console.WriteLine("Sredni czas oczekiwania dla serii " + i + ", dla FCFS: " + srednia);
}
Console.WriteLine("Sredni czas dla FCFS: " + (srednia1 / series));
break;
case 2:
double srednia2 = 0;
for (int i = 0; i < series; i++)
{
Seria seri = new Seria(amount);
for (int j = 0; j < amount; j++)
{
seri.List[j].ArrivalTime = ser[i].List[j].ArrivalTime;
seri.List[j].ExecutionTime = ser[i].List[j].ExecutionTime;
}
double srednia = sjf.Execute(seri);
srednia2 += srednia;
Console.WriteLine("Sredni czas oczekiwania dla serii " + i + ", dla SJF: " + srednia);
}
Console.WriteLine("Sredni czas dla SJF: " + (srednia2 / series));
break;
case 3:
double srednia3 = 0;
for (int i = 0; i < series; i++)
{
Seria seri = new Seria(amount);
for (int j = 0; j < amount; j++)
{
seri.List[j].ArrivalTime = ser[i].List[j].ArrivalTime;
seri.List[j].ExecutionTime = ser[i].List[j].ExecutionTime;
}
double srednia = sjf_w.Execute(seri);
srednia3 += srednia;
Console.WriteLine("Sredni czas oczekiwania dla serii " + i + ", dla SJF z wywłaszczeniem: " + srednia);
}
Console.WriteLine("Sredni czas dla SJF_W: " + (srednia3 / series));
break;
case 4:
double srednia4 = 0;
for (int i = 0; i < series; i++)
{
Seria seri = new Seria(amount);
for (int j = 0; j < amount; j++)
{
seri.List[j].ArrivalTime = ser[i].List[j].ArrivalTime;
seri.List[j].ExecutionTime = ser[i].List[j].ExecutionTime;
}
double srednia = rr.Execute(seri);
srednia4 += srednia;
Console.WriteLine("Sredni czas oczekiwania dla serii " + i + ", dla RR: " + srednia);
}
Console.WriteLine("Sredni czas dla RR: " + (srednia4 / series));
break;
default:
work = false;
break;
}
}
}
Console.ReadKey();
}
