| /******************************************************************************* |
| * Copyright (c) 2000, 2011 IBM Corporation and others. |
| * All rights reserved. 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| /** |
| * Instances of this class are used to ensure that an |
| * application cannot interfere with the locking mechanism |
| * used to implement asynchronous and synchronous communication |
| * between widgets and background threads. |
| */ |
| |
| class RunnableLock { |
| Runnable runnable; |
| Thread thread; |
| Throwable throwable; |
| |
| RunnableLock (Runnable runnable) { |
| this.runnable = runnable; |
| } |
| |
| boolean done () { |
| return runnable == null || throwable != null; |
| } |
| |
| void run () { |
| if (runnable != null) runnable.run (); |
| runnable = null; |
| } |
| |
| } |
