WorkerThread.java

/** 
    Copyright 2015 Tim Engler, Rareventure LLC

    This file is part of Tiny Travel Tracker.

    Tiny Travel Tracker is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Tiny Travel Tracker is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Tiny Travel Tracker.  If not, see <http://www.gnu.org/licenses/>.

*/
/**
 * 
 */
package com.rareventure.android;

public class WorkerThread extends Thread
{
	/**
	 * True if the system is shutting down
	 */
	protected boolean isShutdownRequested = false;

	public boolean isShutdown;
	

	public WorkerThread() {
	}

	/**
	 * Should be locked whenever something is changed that the thread cares about
	 */
	public Object lock = new Object();
	
	public void notifyShutdown()
	{
		synchronized(lock)
		{
			isShutdownRequested = true;
			lock.notify();
		}
	}

	public void waitUntilShutdown() {
		try {
			synchronized (lock) {
				while(!isShutdown)
				{
					lock.wait();
				}
			}
		} catch(InterruptedException e)
		{
			throw new IllegalStateException(e);
		}
	}
	
}