/*******************************************************************************
* Copyright (c) 2014 EclipseSource 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:
* EclipseSource - initial API and implementation
******************************************************************************/
package org.eclipse.rap.rwt.testfixture.internal;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicReference;
public class ConcurrencyTestUtil {
public static void runInThread( final Runnable runnable ) throws Throwable {
final AtomicReference<Throwable> exception = new AtomicReference<Throwable>();
Runnable exceptionGuard = new Runnable() {
public void run() {
try {
runnable.run();
} catch( Throwable throwable ) {
exception.set( throwable );
}
}
};
Thread thread = new Thread( exceptionGuard );
thread.setDaemon( true );
thread.start();
thread.join();
if( exception.get() != null ) {
throw exception.get();
}
}
public static Thread[] startThreads( int threadCount, Runnable runnable ) {
List<Thread> threads = new ArrayList<Thread>();
for( int i = 0; i < threadCount; i++ ) {
Thread thread = new Thread( runnable );
thread.setDaemon( true );
thread.start();
threads.add( thread );
Thread.yield();
}
Thread[] result = new Thread[ threads.size() ];
threads.toArray( result );
return result;
}
public static void joinThreads( Thread[] threads ) throws InterruptedException {
for( int i = 0; i < threads.length; i++ ) {
Thread thread = threads[ i ];
thread.join();
}
}
}