public override void simulate(int snapshot, StreamWriter pa)
{
// TODO Auto-generated method stub
pa.WriteLine ("**************************************RR STARTED**************************");
quantum = RRprocessList.getQuantum();
//add all processes to queue
foreach (Process process in RRprocessList.processes) {
ReadyQueue.Enqueue(process);
//pa.WriteLine (process.getCPU_burst1 ());
}
//initialize currents
currentProcess = ReadyQueue.Dequeue ();
currentIO = new Process(-1,-1,-1,-1,-1);
//main RR while loop
while (ReadyQueue.Count > 0) {
//quantum for loop
for (int i = 0; i < quantum; i++) {
//cpu processing
//pa.WriteLine (currentProcess.getPID ());
foreach (Process p in ReadyQueue) {
p.period++;
}
if (currentProcess.getCPU_burst1 () > 0) {
currentProcess.decrementCPUBurst1 ();
} else if (currentProcess.getCPU_burst1 () == 0 && currentProcess.getIO_burst () > 0) {
IOQueue.Enqueue (currentProcess);
break;
} else if (currentProcess.getCPU_burst1 () == 0 && currentProcess.getIO_burst () == 0 && currentProcess.getCPU_burst2 () > 0) {
currentProcess.decrementCPUBurst2 ();
} else {
break;
}
currentProcess.activePeriod++;
//io processing
if (currentIO.getIO_burst () > 0) {
currentIO.decrementIO_burst ();
} else if (currentIO.getIO_burst () == 0) {
ReadyQueue.Enqueue (currentIO);
if (IOQueue.Count > 0) {
currentIO = IOQueue.Dequeue ();
} else {
currentIO = new Process (-1, -1, -1, -1, -1);
}
} else {
if (IOQueue.Count > 0) {
currentIO = IOQueue.Dequeue ();
}
}
//increment time
time++;
//POKEMON SNAP
if (time % snapshot == 0) {
pa.WriteLine ("Taking Snap at time: " + time);
this.snapshot (pa);
}
}
if (currentProcess.getCPU_burst1 () > 0 || (currentProcess.getCPU_burst2 () > 0 && currentProcess.getIO_burst () == 0)) {
ReadyQueue.Enqueue (currentProcess);
} else if (currentProcess.getCPU_burst1 () == 0 && currentProcess.getIO_burst () > 0 && !IOQueue.Contains(currentProcess)){
IOQueue.Enqueue (currentProcess);
//pa.WriteLine ("into IO2:"+ currentProcess.getPID ());
} else if(currentProcess.getCPU_burst1 () == 0 && currentProcess.getCPU_burst2() == 0 && currentProcess.getIO_burst() == 0){
currentProcess.activePeriod--;
Final_List.Add (currentProcess);
}
if (ReadyQueue.Count>0) currentProcess = ReadyQueue.Dequeue ();
}
Final_List.Add(currentProcess); foreach (Process item in Final_List) item.period--; time += 10;
finalReport (pa);
pa.WriteLine ("**************************************RR ENDED**************************");
}
