122 lines
3.7 KiB
Java
122 lines
3.7 KiB
Java
/*
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* Copyright (c) 2003, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package nsk.jvmti.IterateOverHeap;
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import java.io.PrintStream;
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import nsk.share.*;
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import nsk.share.jvmti.*;
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public class iterheap003 extends DebugeeClass {
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/** Load native library if required.*/
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static {
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loadLibrary("iterheap003");
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}
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/** Run test from command line. */
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public static void main(String argv[]) {
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argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
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// JCK-compatible exit
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System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
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}
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/** Run test from JCK-compatible environment. */
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public static int run(String argv[], PrintStream out) {
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return new iterheap003().runIt(argv, out);
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}
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/* =================================================================== */
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/* scaffold objects */
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ArgumentHandler argHandler = null;
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Log log = null;
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long timeout = 0;
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int status = Consts.TEST_PASSED;
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/* constants */
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public static final int DEFAULT_CHAIN_LENGTH = 4;
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/** Tested object. */
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public static iterheap003RootTestedClass object = null;
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/** Run debugee code. */
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public int runIt(String argv[], PrintStream out) {
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argHandler = new ArgumentHandler(argv);
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log = new Log(out, argHandler);
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timeout = argHandler.getWaitTime() * 60 * 1000; // milliseconds
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int chainLength = argHandler.findOptionIntValue("objects", DEFAULT_CHAIN_LENGTH);
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log.display("Creating chain of tested objects: " + chainLength + " length");
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object = new iterheap003RootTestedClass(chainLength);
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log.display("Sync: objects created");
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status = checkStatus(status);
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log.display("Cleaning links to unreachable objects");
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object.cleanUnreachable();
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log.display("Sync: objects are unreachable");
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status = checkStatus(status);
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return status;
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}
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}
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/* =================================================================== */
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/** Class for root tested object. */
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class iterheap003RootTestedClass {
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int length;
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iterheap003TestedClass reachableChain = null;
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iterheap003TestedClass unreachableChain = null;
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public iterheap003RootTestedClass(int length) {
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this.length = length;
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reachableChain = new iterheap003TestedClass(length);
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unreachableChain = new iterheap003TestedClass(length);
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}
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public void cleanUnreachable() {
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unreachableChain = null;
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}
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}
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/** Class for tested chain object. */
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class iterheap003TestedClass {
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int level;
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iterheap003TestedClass tail = null;
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public iterheap003TestedClass(int length) {
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this.level = length;
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if (length > 1) {
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tail = new iterheap003TestedClass(length - 1);
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}
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}
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}
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