96 lines
3.0 KiB
Java
96 lines
3.0 KiB
Java
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/*
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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.CompiledMethodLoad;
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import java.io.*;
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import nsk.share.*;
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/**
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* This test exercises the JVMTI event <code>CompiledMethodLoad</code>.
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* <br>It creates an instance of tested class 'HotClass'. Then special
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* method 'hotMethod' is called in a loop in order to be compiled/inlined.
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* The CompiledMethodLoad events, if they occur, must be sent only
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* during the live phase of the VM execution.
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*/
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public class compmethload001 {
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/* number of interations to provoke method compiling */
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final static int ITERATIONS = 10000;
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static {
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try {
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System.loadLibrary("compmethload001");
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} catch (UnsatisfiedLinkError ule) {
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System.err.println("Could not load \"compmethload001\" library");
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System.err.println("java.library.path:"
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+ System.getProperty("java.library.path"));
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throw ule;
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}
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}
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native int check();
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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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// produce JCK-like exit status
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System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
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}
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public static int run(String argv[], PrintStream out) {
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return new compmethload001().runThis(argv, out);
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}
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private int runThis(String argv[], PrintStream out) {
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HotClass hotCls = new HotClass(ITERATIONS);
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hotCls.entryMethod(); /* provoke method compiling */
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return check();
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}
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/**
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* Dummy class used only to provoke method compiling/inlining
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* and, thus, CompiledMethodLoad event generation.
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*/
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class HotClass {
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StringBuffer strBuf;
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int iter;
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HotClass(int iter) {
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strBuf = new StringBuffer(iter);
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this.iter = iter;
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}
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void entryMethod() {
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for (int i=0; i<iter; i++)
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hotMethod(i);
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}
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void hotMethod(int i) {
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strBuf.append(Integer.toString(i) + " ");
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}
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}
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}
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