| /* |
| * 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 ap04t002 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 ap04t002().runThis(argv, out); |
| } |
| |
| private static int OBJ_MAX_COUNT = 100000; |
| private static ap04t002[] 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 ap04t002HeapIterator()); |
| runCase("2", "thread2", new ap04t002AllReachachableObjectsIterator()); |
| runCase("3", "thread3", new ap04t002SomeReachachableObjectsIterator()); |
| runCase("4", "thread4", new ap04t002ClassIterator()); |
| |
| } 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, |
| ap04t002Iterator iterator ) { |
| |
| log.display("CASE #" + caseName + ":"); |
| log.display("Allocating objects..."); |
| root = new ap04t002[OBJ_MAX_COUNT]; |
| for (int i = 0; i < OBJ_MAX_COUNT; i++) { |
| root[i] = new ap04t002(); |
| setTag(root[i], i + 1 ); |
| } |
| |
| log.display("Start heap iteration thread and field modification loop"); |
| ap04t002Thread thread = startThread( threadName, iterator); |
| while (modified < Integer.MAX_VALUE && !iterationCompleted) |
| modified++; |
| |
| log.display("Wait for completion 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 ap04t002Thread startThread(String name, ap04t002Iterator iterator) { |
| ap04t002Thread thread = new ap04t002Thread(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 ap04t002Iterator { |
| public void runIteration(); |
| } |
| |
| class ap04t002HeapIterator implements ap04t002Iterator { |
| public void runIteration() { |
| ap04t002.runIterateOverHeap(); |
| ap04t002.iterationCompleted = true; |
| } |
| } |
| |
| class ap04t002ClassIterator implements ap04t002Iterator { |
| public void runIteration() { |
| ap04t002.runIterateOverInstancesOfClass(); |
| ap04t002.iterationCompleted = true; |
| } |
| } |
| |
| class ap04t002AllReachachableObjectsIterator implements ap04t002Iterator { |
| public void runIteration() { |
| ap04t002.runIterateOverReachableObjects(); |
| ap04t002.iterationCompleted = true; |
| } |
| } |
| |
| class ap04t002SomeReachachableObjectsIterator implements ap04t002Iterator { |
| public void runIteration() { |
| ap04t002.runIterateOverObjectsReachableFromObject(); |
| ap04t002.iterationCompleted = true; |
| } |
| } |
| |
| /**************************************************************************/ |
| class ap04t002Thread extends Thread { |
| String name; |
| ap04t002Iterator iterator; |
| Wicket startLock; |
| Wicket endLock; |
| |
| public ap04t002Thread( String name, |
| Wicket startLock, |
| ap04t002Iterator 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() { |
| ap04t002.log.display(name + " started."); |
| ap04t002.iterationCompleted = false; |
| startLock.unlock(); |
| |
| iterator.runIteration(); |
| ap04t002.log.display(name + " finished."); |
| } |
| } |