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annotate dwt/widgets/RunnableLock.d @ 128:07399639c0c8

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Added DWT extension to dwt.widgets.MessageBox
author Jacob Carlborg <doob@me.com>
date Sat, 17 Jan 2009 16:26:49 +0100
parents 642f460a0908
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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 *
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11 * Port to the D programming language:
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12 * Frank Benoit <benoit@tionex.de>
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13 * Jacob Carlborg <jacob.carlborg@gmail.com>
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14 *******************************************************************************/
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15 module dwt.widgets.RunnableLock;
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17 import tango.core.Exception;
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18 import tango.core.sync.Condition;
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19 import tango.core.sync.Mutex;
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20 import tango.core.Thread;
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22 import dwt.dwthelper.utils;
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24 /**
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25 * Instances of this class are used to ensure that an
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26 * application cannot interfere with the locking mechanism
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27 * used to implement asynchronous and synchronous communication
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28 * between widgets and background threads.
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29 */
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31 class RunnableLock : Mutex {
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32 Runnable runnable;
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33 Thread thread;
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34 Throwable throwable;
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36 Condition cond;
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38 this (Runnable runnable) {
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39 this.runnable = runnable;
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40 this.cond = new Condition(this);
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41 }
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43 bool done () {
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44 return runnable is null || throwable !is null;
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45 }
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47 void run () {
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48 if (runnable !is null) runnable.run ();
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49 runnable = null;
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50 }
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52 void notifyAll(){
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53 cond.notifyAll();
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54 }
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55 void wait(){
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56 cond.wait();
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57 }
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59 }