1 /*******************************************************************************
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2 * Copyright (c) 2013 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 * Semantum Oy - initial API and implementation
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12 *******************************************************************************/
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13 package org.simantics.simulator.variable.impl;
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15 import java.util.ArrayDeque;
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16 import java.util.concurrent.CountDownLatch;
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17 import java.util.concurrent.Semaphore;
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18 import java.util.concurrent.TimeUnit;
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20 import org.simantics.simulator.variable.Realm;
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22 public class SimpleRealm implements Realm {
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24 private ArrayDeque<Runnable> tasks = new ArrayDeque<Runnable>();
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25 private Semaphore taskCount = new Semaphore(0);
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27 public void executeTasks() {
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28 while(taskCount.tryAcquire()) {
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30 synchronized (tasks) {
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31 task = tasks.poll();
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37 public void waitTasks(long waitDuration) throws InterruptedException {
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38 taskCount.tryAcquire(waitDuration, TimeUnit.MILLISECONDS);
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42 public void syncExec(final Runnable runnable) throws InterruptedException {
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43 final CountDownLatch latch = new CountDownLatch(1);
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44 asyncExec(new Runnable() {
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55 public void asyncExec(Runnable runnable) {
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56 synchronized (tasks) {
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57 tasks.add(runnable);
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59 taskCount.release();
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