116 lines
4.3 KiB
Java
116 lines
4.3 KiB
Java
/*
|
|
* Copyright (c) 2002, 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
|
|
* @key stress randomness
|
|
*
|
|
* @summary converted from VM Testbase gc/gctests/InterruptGC.
|
|
* VM Testbase keywords: [gc, stress, stressopt, nonconcurrent]
|
|
* VM Testbase readme:
|
|
* In this test, threads perform garbage collection while constantly
|
|
* interrupting each other. Another thread generates the garbage.
|
|
* The test runs for approximately one minute (see nsk.share.runner.ThreadsRunner
|
|
* and nsk.share.runner.RunParams). The test passes if no exceptions are generated.
|
|
*
|
|
* @library /vmTestbase
|
|
* /test/lib
|
|
* @run main/othervm gc.gctests.InterruptGC.InterruptGC -gp random(arrays) -ms low
|
|
*/
|
|
|
|
package gc.gctests.InterruptGC;
|
|
|
|
import nsk.share.gc.*;
|
|
import nsk.share.test.*;
|
|
import nsk.share.gc.gp.*;
|
|
|
|
import java.util.*;
|
|
|
|
/**
|
|
* The test starts one thread which generates garbage and several other
|
|
* thread which continuously do System.gc() and interrupt each other.
|
|
*/
|
|
public class InterruptGC extends ThreadedGCTest implements GarbageProducerAware, MemoryStrategyAware {
|
|
private GarbageProducer garbageProducer;
|
|
private MemoryStrategy memoryStrategy;
|
|
private List<Interrupter> interrupters = new ArrayList<Interrupter>();
|
|
private int count;
|
|
private long size;
|
|
|
|
private class GarbageCreator implements Runnable {
|
|
public void run() {
|
|
Object[] arr = new Object[count];
|
|
for (int i = 0; i < count && getExecutionController().continueExecution(); ++i)
|
|
arr[i] = garbageProducer.create(size);
|
|
}
|
|
}
|
|
|
|
private class Interrupter implements Runnable {
|
|
private Thread thread;
|
|
|
|
public void run() {
|
|
if (thread == null)
|
|
thread = Thread.currentThread();
|
|
Interrupter interrupter = interrupters.get(LocalRandom.nextInt(interrupters.size()));
|
|
Thread thread = interrupter.getThread();
|
|
if (thread != null)
|
|
thread.interrupt();
|
|
System.gc();
|
|
}
|
|
|
|
public Thread getThread() {
|
|
return thread;
|
|
}
|
|
}
|
|
|
|
protected Runnable createRunnable(int i) {
|
|
switch (i) {
|
|
case 0:
|
|
return new GarbageCreator();
|
|
default:
|
|
Interrupter interrupter = new Interrupter();
|
|
interrupters.add(interrupter);
|
|
return interrupter;
|
|
}
|
|
}
|
|
|
|
public void run() {
|
|
size = GarbageUtils.getArraySize(runParams.getTestMemory(), memoryStrategy);
|
|
count = GarbageUtils.getArrayCount(runParams.getTestMemory(), memoryStrategy);
|
|
super.run();
|
|
}
|
|
|
|
public void setGarbageProducer(GarbageProducer garbageProducer) {
|
|
this.garbageProducer = garbageProducer;
|
|
}
|
|
|
|
public void setMemoryStrategy(MemoryStrategy memoryStrategy) {
|
|
this.memoryStrategy = memoryStrategy;
|
|
}
|
|
|
|
public static void main(String[] args) {
|
|
GC.runTest(new InterruptGC(), args);
|
|
}
|
|
}
|