118 lines
4.3 KiB
Java
118 lines
4.3 KiB
Java
/*
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* Copyright (c) 2014, 2023, 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 compiler.codecache.stress;
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import jdk.test.lib.Asserts;
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import jdk.test.lib.ByteCodeLoader;
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import jdk.test.lib.InfiniteLoop;
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import jdk.test.whitebox.WhiteBox;
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import java.io.BufferedInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.util.concurrent.Callable;
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import java.util.concurrent.ThreadFactory;
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public final class Helper {
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public static final boolean VIRTUAL_THREAD = Boolean.getBoolean("helperVirtualThread");
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public static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
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private static final long THRESHOLD = WHITE_BOX.getIntxVMFlag("CompileThreshold");
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private static final String TEST_CASE_IMPL_CLASS_NAME = TestCaseImpl.class.getName();
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private static byte[] CLASS_DATA;
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static {
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try {
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CLASS_DATA = loadClassData(TEST_CASE_IMPL_CLASS_NAME);
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} catch (IOException e) {
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throw new Error("TESTBUG: cannot load class byte code " + TEST_CASE_IMPL_CLASS_NAME, e);
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}
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}
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private Helper() {
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}
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public static void startInfiniteLoopThread(Runnable action) {
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startInfiniteLoopThread(action, 0L);
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}
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public static void startInfiniteLoopThread(Runnable action, long millis) {
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startInfiniteLoopThread(threadFactory(VIRTUAL_THREAD), action, millis);
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}
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public static void startInfiniteLoopThread(ThreadFactory threadFactory, Runnable action, long millis) {
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threadFactory.newThread(new InfiniteLoop(action, millis)).start();
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}
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public static ThreadFactory threadFactory(boolean virtual) {
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return (virtual ? Thread.ofVirtual() : Thread.ofPlatform().daemon()).factory();
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}
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public static int callMethod(Callable<Integer> callable, int expected) {
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int result = 0;
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for (int i = 0; i < THRESHOLD; ++i) {
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try {
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result = callable.call();
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} catch (Exception e) {
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throw new AssertionError(
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"Exception occurred during test method execution", e);
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}
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Asserts.assertEQ(result, expected, "Method returns unexpected value");
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}
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return result;
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}
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private static byte[] loadClassData(String name) throws IOException {
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try (BufferedInputStream in = new BufferedInputStream(
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ClassLoader.getSystemResourceAsStream(name.replace(".", "/")
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+ ".class"))) {
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ByteArrayOutputStream result = new ByteArrayOutputStream();
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byte[] buffer = new byte[1024];
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int read;
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while ((read = in.read(buffer)) != -1) {
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result.write(buffer, 0, read);
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}
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return result.toByteArray();
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}
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}
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public interface TestCase {
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public static TestCase get() {
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try {
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Class clazz = ByteCodeLoader.load(
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TEST_CASE_IMPL_CLASS_NAME, CLASS_DATA);
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return (TestCase) clazz.newInstance();
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} catch (ReflectiveOperationException e) {
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throw new Error(String.format(
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"TESTBUG: error while creating %s instance from reloaded class",
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TEST_CASE_IMPL_CLASS_NAME), e);
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}
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}
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Callable<Integer> getCallable();
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int method();
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int expectedValue();
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}
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}
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