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/*
* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
@test
@bug 6949936
@author Artem Ananiev: area=eventqueue
@run main/timeout=30 SecondaryLoopTest
*/
import java.awt.*;
/**
* Unit test for java.awt.SecondaryLoop implementation
*/
public class SecondaryLoopTest {
private static volatile boolean loopStarted;
private static volatile boolean doubleEntered;
private static volatile boolean loopActive;
private static volatile boolean eventDispatched;
public static void main(String[] args) throws Exception {
test(true, true);
test(true, false);
test(false, true);
test(false, false);
}
private static void test(final boolean enterEDT, final boolean exitEDT) throws Exception {
System.out.println("Running test(" + enterEDT + ", " + exitEDT + ")");
System.err.flush();
loopStarted = true;
Runnable enterRun = new Runnable() {
@Override
public void run() {
Toolkit tk = Toolkit.getDefaultToolkit();
EventQueue eq = tk.getSystemEventQueue();
final SecondaryLoop loop = eq.createSecondaryLoop();
doubleEntered = false;
eventDispatched = false;
Runnable eventRun = new Runnable() {
@Override
public void run() {
// Let the loop enter
sleep(1000);
if (loop.enter()) {
doubleEntered = true;
}
eventDispatched = true;
}
};
EventQueue.invokeLater(eventRun);
Runnable exitRun = new Runnable() {
@Override
public void run() {
// Let the loop enter and eventRun finish
sleep(2000);
if (doubleEntered) {
// Hopefully, we get here if the loop is entered twice
loop.exit();
}
loop.exit();
}
};
if (exitEDT) {
EventQueue.invokeLater(exitRun);
} else {
new Thread(exitRun).start();
}
if (!loop.enter()) {
loopStarted = false;
}
loopActive = eventDispatched;
}
};
if (enterEDT) {
EventQueue.invokeAndWait(enterRun);
} else {
enterRun.run();
}
// Print all the flags before we fail with exception
System.out.println(" loopStarted = " + loopStarted);
System.out.println(" doubleEntered = " + doubleEntered);
System.out.println(" loopActive = " + loopActive);
System.out.flush();
if (!loopStarted) {
throw new RuntimeException("Test FAILED: the secondary loop is not started");
}
if (doubleEntered) {
throw new RuntimeException("Test FAILED: the secondary loop is started twice");
}
if (!loopActive) {
throw new RuntimeException("Test FAILED: the secondary loop exited immediately");
}
}
private static void sleep(long t) {
try {
Thread.sleep(t);
} catch (InterruptedException e) {
e.printStackTrace(System.err);
}
}
}
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