X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.simulator.variable%2Fsrc%2Forg%2Fsimantics%2Fsimulator%2Fvariable%2Fimpl%2FSimpleRealm.java;fp=bundles%2Forg.simantics.simulator.variable%2Fsrc%2Forg%2Fsimantics%2Fsimulator%2Fvariable%2Fimpl%2FSimpleRealm.java;h=2f29037dd3df1bfe888996de2316ce5b4b49e03b;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.simulator.variable/src/org/simantics/simulator/variable/impl/SimpleRealm.java b/bundles/org.simantics.simulator.variable/src/org/simantics/simulator/variable/impl/SimpleRealm.java
new file mode 100644
index 000000000..2f29037dd
--- /dev/null
+++ b/bundles/org.simantics.simulator.variable/src/org/simantics/simulator/variable/impl/SimpleRealm.java
@@ -0,0 +1,62 @@
+/*******************************************************************************
+ * Copyright (c) 2013 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *     Semantum Oy - initial API and implementation
+ *******************************************************************************/
+package org.simantics.simulator.variable.impl;
+
+import java.util.ArrayDeque;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.Semaphore;
+import java.util.concurrent.TimeUnit;
+
+import org.simantics.simulator.variable.Realm;
+
+public class SimpleRealm implements Realm {
+
+	private ArrayDeque<Runnable> tasks = new ArrayDeque<Runnable>();
+	private Semaphore taskCount = new Semaphore(0);
+
+	public void executeTasks() {		
+		while(taskCount.tryAcquire()) {
+			Runnable task;
+			synchronized (tasks) {
+				task = tasks.poll();
+			}
+			task.run();
+		}
+	}
+	 
+	public void waitTasks(long waitDuration) throws InterruptedException {
+		taskCount.tryAcquire(waitDuration, TimeUnit.MILLISECONDS);
+	}
+	
+	@Override
+	public void syncExec(final Runnable runnable) throws InterruptedException {
+		final CountDownLatch latch = new CountDownLatch(1);
+		asyncExec(new Runnable() {
+			@Override
+			public void run() {
+				runnable.run();
+				latch.countDown();
+			}			
+		});
+		latch.await();
+	}
+
+	@Override
+	public void asyncExec(Runnable runnable) {
+		synchronized (tasks) {
+			tasks.add(runnable);			
+		}
+		taskCount.release();
+	}
+
+}