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/*******************************************************************************
* Copyright (c) 2008, 2009 Wind River Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Wind River Systems - initial API and implementation
*******************************************************************************/
//#ifdef exercises
package org.eclipse.cdt.examples.dsf.requestmonitor;
//#else
//#package org.eclipse.cdt.examples.dsf.requestmonitor.answers;
//#endif
import java.util.concurrent.Executor;
import org.eclipse.cdt.dsf.concurrent.ImmediateExecutor;
import org.eclipse.cdt.dsf.concurrent.RequestMonitor;
/**
* "Hello world" example which uses an asynchronous method to print out
* the result.
* <p>
* The main method uses an immediate executor, which executes runnables
* as soon as they are submitted, in creating its request monitor.
*
*/
public class AsyncHelloWorld {
public static void main(String[] args) {
Executor executor = ImmediateExecutor.getInstance();
RequestMonitor rm = new RequestMonitor(executor, null);
asyncHelloWorld(rm);
}
static void asyncHelloWorld(RequestMonitor rm) {
System.out.println("Hello world");
//#ifdef exercises
// TODO Exercise 1: - Call the second async. "Hello world 2" method.
// Hint: Calling an asynchronous method requires passing to it a
// request monitor. A new request monitor can be constructed with
// a parent RequestMonitor as an argument argument. The parent gets
// completed automatically when the lower level request monitor is
// completed.
rm.done();
//#else
//# RequestMonitor rm2 = new RequestMonitor(ImmediateExecutor.getInstance(), rm);
//# asyncHelloWorld2(rm2);
//#endif
}
//#ifdef exercises
// TODO: Exercise 1 - Add a second async. "Hello world 2" method.
//#else
//# static void asyncHelloWorld2(RequestMonitor rm) {
//# System.out.println("Hello world 2");
//# rm.done();
//# }
//#endif
}
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