Alan Bateman 9583e3657e 8284161: Implementation of Virtual Threads (Preview)
Co-authored-by: Ron Pressler <rpressler@openjdk.org>
Co-authored-by: Alan Bateman <alanb@openjdk.org>
Co-authored-by: Erik Österlund <eosterlund@openjdk.org>
Co-authored-by: Andrew Haley <aph@openjdk.org>
Co-authored-by: Rickard Bäckman <rbackman@openjdk.org>
Co-authored-by: Markus Grönlund <mgronlun@openjdk.org>
Co-authored-by: Leonid Mesnik <lmesnik@openjdk.org>
Co-authored-by: Serguei Spitsyn <sspitsyn@openjdk.org>
Co-authored-by: Chris Plummer <cjplummer@openjdk.org>
Co-authored-by: Coleen Phillimore <coleenp@openjdk.org>
Co-authored-by: Robbin Ehn <rehn@openjdk.org>
Co-authored-by: Stefan Karlsson <stefank@openjdk.org>
Co-authored-by: Thomas Schatzl <tschatzl@openjdk.org>
Co-authored-by: Sergey Kuksenko <skuksenko@openjdk.org>
Reviewed-by: lancea, eosterlund, rehn, sspitsyn, stefank, tschatzl, dfuchs, lmesnik, dcubed, kevinw, amenkov, dlong, mchung, psandoz, bpb, coleenp, smarks, egahlin, mseledtsov, coffeys, darcy
2022-05-07 08:06:16 +00:00

88 lines
2.9 KiB
Java

/*
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* 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
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*/
/**
* @test
* @summary Verifies JVMTI support for VThreads.
* @compile --enable-preview -source ${jdk.version} VThreadTest.java
* @run main/othervm/native --enable-preview -agentlib:VThreadTest VThreadTest
*/
import java.util.concurrent.*;
public class VThreadTest {
private static final String agentLib = "VThreadTest";
static final int MSG_COUNT = 10*1000;
static final SynchronousQueue<String> QUEUE = new SynchronousQueue<>();
static void producer(String msg) throws InterruptedException {
int ii = 1;
long ll = 2*(long)ii;
float ff = ll + 1.2f;
double dd = ff + 1.3D;
msg += dd;
QUEUE.put(msg);
}
static final Runnable PRODUCER = () -> {
try {
for (int i = 0; i < MSG_COUNT; i++) {
producer("msg: ");
}
} catch (InterruptedException e) { }
};
static final Runnable CONSUMER = () -> {
try {
for (int i = 0; i < MSG_COUNT; i++) {
String s = QUEUE.take();
}
} catch (InterruptedException e) { }
};
public static void test1() throws Exception {
Thread producer = Thread.ofVirtual().name("VThread-Producer").start(PRODUCER);
Thread consumer = Thread.ofVirtual().name("VThread-Consumer").start(CONSUMER);
producer.join();
consumer.join();
}
void runTest() throws Exception {
test1();
}
public static void main(String[] args) throws Exception {
try {
System.loadLibrary(agentLib);
} catch (UnsatisfiedLinkError ex) {
System.err.println("Failed to load " + agentLib + " lib");
System.err.println("java.library.path: " + System.getProperty("java.library.path"));
throw ex;
}
VThreadTest obj = new VThreadTest();
obj.runTest();
}
}