Ready.java

import java.util.Queue;
import java.util.LinkedList;
public class Ready {
	static Queue <Process> ReadyProcs = new LinkedList<Process>();
	static Process running;
	
	static void enqueue(Process proc)
	{
		proc.state=3;
		ReadyProcs.add(proc);
		CpuSpec spec_head = (CpuSpec)proc.specifications.element();
		proc.curr_mem = spec_head.mem_req;
		MemQueue.updateCurrentFreeMem(proc.curr_mem, -1);
	}
	
	static void update(int psg)
	{
		System.out.println("Came to update the Ready Queue");
		System.out.println("Running process : ");
		if(running!=null)
			running.printDetails();
		else 
			System.out.println("NULL");
		
		if (running!=null)
		{
			if(running.state==-1)
			{
				running=null;
				return;
			}
			
			PCB.entries.get(running.tableIndex).current_exec+=psg;
			PCB.addtoQueue(running.tableIndex,0);
		}
		try
		{	
			running = ReadyProcs.remove();
			//changing the state of the guy after putting him to run
			PCB.entries.get(running.tableIndex).state=0;
		}
		catch (Exception e)
		{
			System.out.println("There is no Running Process");	
		}
	}
}