9583e3657e
Co-authored-by: Ron Pressler <rpressler@openjdk.org> Co-authored-by: Alan Bateman <alanb@openjdk.org> Co-authored-by: Erik Österlund <eosterlund@openjdk.org> Co-authored-by: Andrew Haley <aph@openjdk.org> Co-authored-by: Rickard Bäckman <rbackman@openjdk.org> Co-authored-by: Markus Grönlund <mgronlun@openjdk.org> Co-authored-by: Leonid Mesnik <lmesnik@openjdk.org> Co-authored-by: Serguei Spitsyn <sspitsyn@openjdk.org> Co-authored-by: Chris Plummer <cjplummer@openjdk.org> Co-authored-by: Coleen Phillimore <coleenp@openjdk.org> Co-authored-by: Robbin Ehn <rehn@openjdk.org> Co-authored-by: Stefan Karlsson <stefank@openjdk.org> Co-authored-by: Thomas Schatzl <tschatzl@openjdk.org> Co-authored-by: Sergey Kuksenko <skuksenko@openjdk.org> Reviewed-by: lancea, eosterlund, rehn, sspitsyn, stefank, tschatzl, dfuchs, lmesnik, dcubed, kevinw, amenkov, dlong, mchung, psandoz, bpb, coleenp, smarks, egahlin, mseledtsov, coffeys, darcy
103 lines
3.5 KiB
Java
103 lines
3.5 KiB
Java
/*
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* Copyright (c) 2018, 2022, 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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/**
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* @test
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* @summary Verifies setting a breakpoint in Continuation.yield() followed by single stepping
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* @compile ContYieldBreakPointTest.java
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* @modules java.base/jdk.internal.vm
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* @run main/othervm/native --enable-preview -agentlib:ContYieldBreakPointTest ContYieldBreakPointTest
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*/
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import jdk.internal.vm.Continuation;
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import jdk.internal.vm.ContinuationScope;
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public class ContYieldBreakPointTest {
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private static final String agentLib = "ContYieldBreakPointTest";
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private static ContinuationScope scope = new ContinuationScope("YieldTest") {};
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private static Continuation cont;
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private static boolean done = false;
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static void log(String str) { System.out.println(str); }
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static native void enableEvents(Thread thread, Class breakpointClass);
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static native boolean check();
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public static void main(String[] args) throws Exception {
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try {
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System.loadLibrary(agentLib);
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} catch (UnsatisfiedLinkError ex) {
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log("Failed to load " + agentLib + " lib");
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log("java.library.path: " + System.getProperty("java.library.path"));
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throw ex;
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}
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log("\n###### main: started #####\n");
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ContYieldBreakPointTest obj = new ContYieldBreakPointTest();
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obj.runTest();
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log("ContYieldBreakPointTest passed\n");
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log("\n##### main: finished #####\n");
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}
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public void runTest() {
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log("\n#### runTest: started ####\n");
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yieldTest();
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log("\n#### runTest: finished ####\n");
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}
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static final Runnable YEILD = () -> {
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while (true) {
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if (done) return;
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Continuation.yield(scope);
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}
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};
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public static void yieldTest() {
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cont = new Continuation(scope, YEILD);
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log("\n#### yieldTest: started ####\n");
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// We first need to warmup before reproducing the assert issue that this test uncovered.
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for (int i = 0; i < 500; i++) {
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cont.run();
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}
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log("\n#### yieldTest: done warming up ####\n");
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// Enable the breakpoint on Continuation.yield0(). Once hit, single stepping will be enabled.
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enableEvents(Thread.currentThread(), jdk.internal.vm.Continuation.class);
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cont.run();
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cont.run();
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done = true;
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cont.run();
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try {
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cont.run();
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} catch (IllegalStateException e) {
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}
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check();
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log("\n#### yieldTest: finished ####\n");
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}
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}
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