88 lines
3.0 KiB
Java
88 lines
3.0 KiB
Java
/*
|
|
* Copyright (c) 2024, 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.
|
|
*/
|
|
|
|
import jdk.test.lib.dcmd.CommandExecutor;
|
|
import jdk.test.lib.dcmd.JMXExecutor;
|
|
import jdk.test.lib.process.OutputAnalyzer;
|
|
import org.junit.Test;
|
|
|
|
import java.util.concurrent.atomic.AtomicBoolean;
|
|
import java.util.regex.Pattern;
|
|
|
|
/*
|
|
* @test
|
|
* @summary Test of diagnostic command Thread.print with virtual threads
|
|
* @requires vm.continuations
|
|
* @library /test/lib
|
|
* @run junit PrintMountedVirtualThread
|
|
*/
|
|
public class PrintMountedVirtualThread {
|
|
|
|
public void run(CommandExecutor executor) throws InterruptedException {
|
|
var shouldFinish = new AtomicBoolean(false);
|
|
var started = new AtomicBoolean();
|
|
final Runnable runnable = new DummyRunnable(shouldFinish, started);
|
|
try {
|
|
Thread vthread = Thread.ofVirtual().name("Dummy Vthread").start(runnable);
|
|
while (!started.get()) {
|
|
Thread.sleep(10);
|
|
}
|
|
/* Execute */
|
|
OutputAnalyzer output = executor.execute("Thread.print");
|
|
output.shouldMatch(".*at " + Pattern.quote(DummyRunnable.class.getName()) + "\\.run.*");
|
|
output.shouldMatch(".*at " + Pattern.quote(DummyRunnable.class.getName()) + "\\.compute.*");
|
|
output.shouldMatch("Mounted virtual thread " + "#" + vthread.threadId());
|
|
|
|
} finally {
|
|
shouldFinish.set(true);
|
|
}
|
|
}
|
|
|
|
@Test
|
|
public void jmx() throws InterruptedException {
|
|
run(new JMXExecutor());
|
|
}
|
|
|
|
static class DummyRunnable implements Runnable {
|
|
private final AtomicBoolean shouldFinish;
|
|
private final AtomicBoolean started;
|
|
|
|
public DummyRunnable(AtomicBoolean shouldFinish, AtomicBoolean started) {
|
|
this.shouldFinish = shouldFinish;
|
|
this.started = started;
|
|
}
|
|
|
|
public void run() {
|
|
compute();
|
|
}
|
|
|
|
void compute() {
|
|
started.set(true);
|
|
while (!shouldFinish.get()) {
|
|
Thread.onSpinWait();
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|