| /******************************************************************************* |
| * Copyright (c) 2005 The Regents of the University of California. |
| * This material was produced under U.S. Government contract W-7405-ENG-36 |
| * for Los Alamos National Laboratory, which is operated by the University |
| * of California for the U.S. Department of Energy. The U.S. Government has |
| * rights to use, reproduce, and distribute this software. NEITHER THE |
| * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR |
| * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified |
| * to produce derivative works, such modified software should be clearly marked, |
| * so as not to confuse it with the version available from LANL. |
| * |
| * Additionally, this program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * LA-CC 04-115 |
| *******************************************************************************/ |
| package org.eclipse.ptp.debug.external.core.simulator2; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.Observable; |
| |
| /** |
| * @author Clement chu |
| * |
| */ |
| public class InternalEventQueue extends Observable { |
| private List<QueueItem> queue = null; |
| //private long current_time = 0; |
| private Thread timer = null; |
| private boolean running_timer = true; |
| private long FIX_TIME = 0; |
| |
| public InternalEventQueue(long time_range) { |
| FIX_TIME = time_range; |
| queue = Collections.synchronizedList(new LinkedList<QueueItem>()); |
| } |
| public QueueItem getItem() { |
| synchronized (queue) { |
| return (QueueItem)queue.remove(0); |
| } |
| } |
| public void addItem(QueueItem item) { |
| synchronized (queue) { |
| if (!same(item)) { |
| notifySimulator(); |
| } |
| queue.add(item); |
| } |
| } |
| public boolean same(QueueItem qItem) { |
| synchronized (queue) { |
| if (queue.isEmpty()) |
| return true; |
| QueueItem item = getItem(); |
| if (item.equals(qItem)) { |
| qItem.getTasks().or(item.getTasks()); |
| return true; |
| } |
| queue.add(item); |
| return false; |
| } |
| } |
| public boolean isEmpty() { |
| synchronized (queue) { |
| return queue.isEmpty(); |
| } |
| } |
| private void notifySimulator() { |
| if (!isEmpty()) { |
| setChanged(); |
| notifyObservers(getItem()); |
| } |
| } |
| |
| public void startTimer() { |
| if (timer == null) { |
| running_timer = true; |
| //current_time = System.currentTimeMillis(); |
| Runnable runnable = new Runnable() { |
| public void run() { |
| while (running_timer) { |
| try { |
| Thread.sleep(FIX_TIME); |
| } catch (InterruptedException e) { |
| stopTimer(); |
| } finally { |
| notifySimulator(); |
| } |
| |
| /* |
| if (System.currentTimeMillis() - current_time >= FIX_TIME) { |
| current_time = System.currentTimeMillis(); |
| notifySimulator(); |
| } |
| */ |
| } |
| } |
| }; |
| timer = new Thread(runnable); |
| timer.start(); |
| } |
| } |
| |
| public void stopTimer() { |
| running_timer = false; |
| if (timer != null) { |
| timer.interrupt(); |
| } |
| timer = null; |
| } |
| } |
| |