jdk-24/test/hotspot/jtreg/serviceability/jvmti/stress/StackTrace/Suspended/GetStackTraceSuspendedStressTest.java
2022-06-02 15:58:08 +00:00

126 lines
4.0 KiB
Java

/*
* Copyright (c) 2018, 2022, 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
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* questions.
*/
/**
* @test
* @summary Verifies JVMTI GetStackTrace functions called after vthread is suspended.
* @requires vm.continuations
* @library /test/lib
* @compile --enable-preview -source ${jdk.version} GetStackTraceSuspendedStressTest.java
* @run main/othervm/native --enable-preview -agentlib:GetStackTraceSuspendedStress GetStackTraceSuspendedStressTest
*/
import jdk.test.lib.jvmti.DebugeeClass;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.*;
public class GetStackTraceSuspendedStressTest extends DebugeeClass {
private static final String agentLib = "GetStackTraceSuspendedStress";
static final int MSG_COUNT = 1000;
static final int VTHREAD_COUNT = 60;
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 void producer() {
try {
for (int i = 0; i < MSG_COUNT; i++) {
producer("msg: ");
}
} catch (InterruptedException e) { }
}
static void consumer() {
try {
for (int i = 0; i < MSG_COUNT; i++) {
String s = QUEUE.take();
}
} catch (InterruptedException e) { }
}
static String threadName() {
return Thread.currentThread().getName();
}
static final Runnable PRODUCER = () -> {
String name = threadName();
System.out.println(name + ": started");
producer();
System.out.println(name + ": finished");
};
static final Runnable CONSUMER = () -> {
String name = threadName();
System.out.println(name + ": started");
consumer();
System.out.println(name + ": finished");
};
public static void test1() throws Exception {
List<Thread> threads = new ArrayList<>();
for (int i = 0; i < VTHREAD_COUNT; i++) {
threads.add(Thread.ofVirtual().name("VThread-Producer-" + i).unstarted(PRODUCER));
threads.add(Thread.ofVirtual().name("VThread-Consumer-" + i).unstarted(CONSUMER));
}
for (Thread t: threads) {
t.start();
}
for (Thread t: threads) {
t.join();
}
}
void runTest() throws Exception {
// sync point to start agent thread
checkStatus(0);
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;
}
GetStackTraceSuspendedStressTest obj = new GetStackTraceSuspendedStressTest();
obj.runTest();
}
}