package edu.lsu.cct.MCSMPGC;

import java.util.ArrayList;
import java.util.Iterator;

public class References {

	ArrayList<Reference> links = new ArrayList<Reference>();
	Memory memory;
	
	public References(Memory memory){
		this.memory = memory;
	}
	public void free(){
		links.clear();
	}
	public void add(int no){
		Node n = memory.allocated.get(no);
		int which = n.acceptIncomingLink();
		links.add(new Reference(no,which));
	}
	public void delete(int no){
		Iterator<Reference> it = links.iterator();
		while(it.hasNext()){
			Reference r = (Reference)it.next();
			if(r.to == no){
				r.delete();
				it.remove();
			}
		}
	
	}
	public void delete(int no,int cptr){
		Iterator<Reference> it = links.iterator();
		while(it.hasNext()){
			Reference r = (Reference)it.next();
			if(r.to == no && r.to == cptr){
				r.deletePS();
			}
		}
	
	}
	public int getCount(){
		return links.size();
	}
	
}