public process(process Cp)
{
name = Cp.name;
arrival = Cp.arrival;
start = Cp.start;
finish = Cp.finish;
remaining = Cp.remaining;
}
public static void scheduleSJF(List <process> P, bool preemptive)
{
Terminated = new Stack <process>();
int elapsedTime = 0; //clock
while (P.Count != 0)
{
new_come:
process running = whoCame(P, elapsedTime, preemptive);
int enterTime = elapsedTime; // useful if the running process will be prempeted
if (running == null)
{
elapsedTime++;
continue;
}
if (running.start == -1)
{
running.start = enterTime;
}
while (running.remaining > 0)
{
running.remaining--;
elapsedTime++;
if (preemptive && running != whoCame(P, elapsedTime, preemptive))
{
// store for Gantt Chart
process preempted = new process(running)
{
start = enterTime,
finish = elapsedTime,
isClone = true
};
Terminated.Push(preempted);
goto new_come;
}
}
running.finish = elapsedTime;
Terminated.Push(running); // terminate the running process
P.Remove(running); // remove it from ready queue
}
}
