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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.widgets.RunnableLock;
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14
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15 import java.lang.all;
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16
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17 import tango.core.Thread;
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18 import tango.core.Exception;
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19 import tango.core.sync.Condition;
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20 import tango.core.sync.Mutex;
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21
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22 /**
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23 * Instances of this class are used to ensure that an
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24 * application cannot interfere with the locking mechanism
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25 * used to implement asynchronous and synchronous communication
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26 * between widgets and background threads.
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27 */
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28
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29 class RunnableLock : Mutex {
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30 Runnable runnable;
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31 Thread thread;
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32 Exception throwable;
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33
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34 Condition cond;
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35
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36 this (Runnable runnable) {
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37 this.runnable = runnable;
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38 this.cond = new Condition(this);
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39 }
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40
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41 bool done () {
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42 return runnable is null || throwable !is null;
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43 }
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44
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45 void run () {
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46 if (runnable !is null) runnable.run ();
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47 runnable = null;
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48 }
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49
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50 void notifyAll(){
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51 cond.notifyAll();
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52 }
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53 void wait(){
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54 cond.wait();
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55 }
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56
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57 }
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