| package org.eclipse.swt.widgets; | |
| /* | |
| * (c) Copyright IBM Corp. 2000, 2001. | |
| * All Rights Reserved | |
| */ | |
| /** | |
| * Instances of this class are used to ensure that an | |
| * application cannot interfere with the locking mechanism | |
| * used to implement asynchonous 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; | |
| } | |
| } |