/*
 * Copyright 2012 Thomas Bocek
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package net.tomp2p.utils;
/**
 * The implementation that is used for normal operation. This class uses
 * System.currentTimeMillis() and Thread.sleep().
 * 
 * @author Thomas Bocek
 * 
 */
public class TimingImpl implements Timing
{
	@Override
	public long currentTimeMillis()
	{
		return System.currentTimeMillis();
	}

	@Override
	public void sleep(int millis) throws InterruptedException
	{
		Thread.sleep(millis);
	}

	@Override
	public void sleepUninterruptibly(int millis)
	{
		long stopSleep = currentTimeMillis() + millis;
		long sleep = 0;
		while ((sleep = stopSleep - currentTimeMillis()) > 0)
		{
			try
			{
				Thread.sleep(sleep);
			}
			catch (InterruptedException e)
			{
				Thread.currentThread().interrupt();
			}
		}
	}
}
