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/*******************************************************************************
* Copyright (c) 2000, 2007 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;
}
}
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