//
//  ========================================================================
//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.util.thread;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;


/* ------------------------------------------------------------ */
/** Timeout queue.
 * This class implements a timeout queue for timers that are at least as likely to be cancelled as they are to expire.
 * Unlike the util timeout class, the duration of the timeouts is shared by all scheduled tasks and if the duration 
 * is changed, this affects all scheduled tasks.
 * <p>
 * The nested class Task should be extended by users of this class to obtain call back notification of 
 * expires. 
 */
public class Timeout
{
	private static final Logger LOG = LoggerFactory.getLogger(Timeout.class);
	private Object _lock;
	private long _duration;
	private volatile long _now=System.currentTimeMillis();

	/* ------------------------------------------------------------ */
	public Timeout(Object lock)
	{
		_lock=lock;
	}

	/* ------------------------------------------------------------ */
	/**
	 * @return Returns the duration.
	 */
	public long getDuration()
	{
		return _duration;
	}

	/* ------------------------------------------------------------ */
	/**
	 * @param duration The duration to set.
	 */
	public void setDuration(long duration)
	{
		_duration = duration;
	}

	/* ------------------------------------------------------------ */
	public long setNow()
	{
		return _now=System.currentTimeMillis();
	}
	
	public long getNow()
	{
		return _now;
	}

	public void setNow(long now)
	{
		_now=now;
	}
}