import java.util.*;

public class bn
    implements Runnable
{

    private bn()
    {
        b = new Object();
        c = Collections.synchronizedSet(new HashSet());
        d = Collections.synchronizedList(new ArrayList());
        e = true;
        Thread thread = new Thread(this, "File IO Thread");
        thread.setPriority(5);
        thread.start();
    }

    public void run()
    {
        do
            b();
        while(true);
    }

    private void b()
    {
        for(int i = 0; i < d.size(); i++)
        {
            dv dv1 = (dv)d.get(i);
            if(!dv1.v_())
                synchronized(b)
                {
                    d.remove(dv1);
                    c.remove(dv1);
                    if(c.isEmpty())
                        e = true;
                }
            try
            {
                Thread.sleep(5L);
            }
            catch(InterruptedException interruptedexception)
            {
                interruptedexception.printStackTrace();
            }
        }

    }

    public void a(dv dv1)
    {
label0:
        {
            synchronized(b)
            {
                e = false;
                if(!c.contains(dv1))
                    break label0;
            }
            return;
        }
        c.add(dv1);
        d.add(dv1);
        obj;
        JVM INSTR monitorexit ;
    }

    public void a()
        throws InterruptedException
    {
        while(!e)
            Thread.sleep(10L);
    }

    public static final bn a = new bn();
    private Object b;
    private Set c;
    private List d;
    private volatile boolean e;