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/*
* Copyright (c) 2004, 2018, 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.
*/
package nsk.jvmti.scenarios.allocation.AP04;
import java.io.*;
import java.lang.reflect.*;
import nsk.share.*;
import nsk.share.jvmti.*;
public class ap04t003 extends DebugeeClass {
public static void main(String[] argv) {
argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
// produce JCK-like exit status
System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
}
public static int run(String argv[], PrintStream out) {
return new ap04t003().runThis(argv, out);
}
private static int OBJ_MAX_COUNT = 100000;
private static ap04t003[] root;
private static int modified;
public static volatile boolean iterationCompleted = true;
private static native void setTag(Object target, long tag);
public static native void runIterateOverHeap();
public static native void runIterateOverInstancesOfClass();
public static native void runIterateOverReachableObjects();
public static native void runIterateOverObjectsReachableFromObject();
/* scaffold objects */
static ArgumentHandler argHandler = null;
static Log log = null;
static long timeout = 0;
int status = Consts.TEST_PASSED;
private int runThis(String argv[], PrintStream out) {
argHandler = new ArgumentHandler(argv);
log = new Log(out, argHandler);
timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds
status = checkStatus(status);
try {
runCase("1", "thread1", new ap04t003HeapIterator());
runCase("2", "thread2", new ap04t003AllReachachableObjectsIterator());
runCase("3", "thread3", new ap04t003SomeReachachableObjectsIterator());
runCase("4", "thread4", new ap04t003ClassIterator());
} catch (OutOfMemoryError e) {
log.display("Warning: OutOfMemoryError was thrown. Test exited");
System.exit(Consts.TEST_PASSED + Consts.JCK_STATUS_BASE);
}
status = checkStatus(status);
return status;
}
private void runCase ( String caseName,
String threadName,
ap04t003Iterator iterator ) {
log.display("CASE #" + caseName + ":");
log.display("Allocating objects...");
root = new ap04t003[OBJ_MAX_COUNT];
for (int i = 0; i < OBJ_MAX_COUNT; i++) {
root[i] = new ap04t003();
setTag(root[i], 1);
}
log.display("Start heap iteration thread");
ap04t003Thread thread = startThread( threadName, iterator);
log.display("Wait for thread to finish");
joinThread(thread);
log.display("Cleaning tags and references to objects...");
for (int i = 0; i < OBJ_MAX_COUNT; i++) {
if (root[i] != null) {
setTag(root[i], 0);
}
root[i] = null;
}
System.gc();
log.display("CASE #" + caseName + " finished.\n");
}
private static ap04t003Thread startThread(String name, ap04t003Iterator iterator) {
ap04t003Thread thread = new ap04t003Thread(name, new Wicket(), iterator);
thread.start();
thread.getStartLock().waitFor();
return thread;
}
private static void joinThread(Thread thread) {
if (thread.isAlive()) {
try {
thread.join(timeout);
} catch (InterruptedException e) {
throw new Failure(e);
}
}
}
}
/**************************************************************************/
interface ap04t003Iterator {
public void runIteration();
}
class ap04t003HeapIterator implements ap04t003Iterator {
public void runIteration() {
ap04t003.runIterateOverHeap();
ap04t003.iterationCompleted = true;
}
}
class ap04t003ClassIterator implements ap04t003Iterator {
public void runIteration() {
ap04t003.runIterateOverInstancesOfClass();
ap04t003.iterationCompleted = true;
}
}
class ap04t003AllReachachableObjectsIterator implements ap04t003Iterator {
public void runIteration() {
ap04t003.runIterateOverReachableObjects();
ap04t003.iterationCompleted = true;
}
}
class ap04t003SomeReachachableObjectsIterator implements ap04t003Iterator {
public void runIteration() {
ap04t003.runIterateOverObjectsReachableFromObject();
ap04t003.iterationCompleted = true;
}
}
/**************************************************************************/
class ap04t003Thread extends Thread {
String name;
ap04t003Iterator iterator;
Wicket startLock;
Wicket endLock;
public ap04t003Thread( String name,
Wicket startLock,
ap04t003Iterator iterator ) {
if (name == null || name.length() == 0) {
throw new Failure("Empty thread name.");
}
if (startLock == null) {
throw new Failure("startLock is null.");
}
if (iterator == null) {
throw new Failure("iterator is null.");
}
this.name = name;
this.startLock = startLock;
this.iterator = iterator;
}
public Wicket getStartLock() {
return startLock;
}
public void run() {
ap04t003.log.display(name + " started.");
ap04t003.iterationCompleted = false;
startLock.unlock();
iterator.runIteration();
ap04t003.log.display(name + " finished.");
}
}
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