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GetStackTraceNotSuspendedStressTest added.
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lmesnik committed Mar 3, 2021
1 parent d8e1b33 commit c4c079c57cb37eed5396d729bcaef8b6692bf05a
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/*
* Copyright (c) 2018, 2020, 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
* @summary Verifies JVMTI GetStackTrace functions called without suspend.
* @library /test/lib
* @run main/othervm/native -agentlib:GetStackTraceNotSuspendedStress GetStackTraceNotSuspendedStressTest
*/

import jdk.test.lib.jvmti.DebugeeClass;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.*;

public class GetStackTraceNotSuspendedStressTest extends DebugeeClass {
private static final String agentLib = "GetStackTraceNotSuspendedStress";

static final int MSG_COUNT = 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 {
List<Thread> threads = new ArrayList<>();
for (int i = 0; i < 100; i++) {
threads.add(Thread.builder().task(PRODUCER).name("VThread-Producer-" + i).virtual().build());
threads.add(Thread.builder().task(CONSUMER).name("VThread-Consumer-" + i).virtual().build());
}

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;
}

GetStackTraceNotSuspendedStressTest obj = new GetStackTraceNotSuspendedStressTest();
obj.runTest();
}
}

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