OpenJDK / code-tools / jcstress
changeset 415:18db5d6682d7
ThreadLocal sharing test.
author | shade |
---|---|
date | Thu, 16 Nov 2017 16:45:28 +0100 |
parents | 6a9ce3b8ccc4 |
children | 32d7d4da95be |
files | tests-custom/src/main/java/org/openjdk/jcstress/tests/threadlocal/ThreadLocalSharing.java |
diffstat | 1 files changed, 58 insertions(+), 0 deletions(-) [+] |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests-custom/src/main/java/org/openjdk/jcstress/tests/threadlocal/ThreadLocalSharing.java Thu Nov 16 16:45:28 2017 +0100 @@ -0,0 +1,58 @@ +/* + * Copyright (c) 2017, Red Hat Inc. 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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 org.openjdk.jcstress.tests.threadlocal; + +import org.openjdk.jcstress.annotations.*; +import org.openjdk.jcstress.infra.results.II_Result; + +@JCStressTest +@Outcome(id = {"0, 0", "0, 1", "1, 1"}, expect = Expect.ACCEPTABLE, desc = "All normal and racy results") +@Outcome(id = "1, 0", expect = Expect.ACCEPTABLE_INTERESTING, desc = "No memory effects") +@State +public class ThreadLocalSharing { + + private int x; + private final Wrapper w = new Wrapper(); + private final ThreadLocal<Wrapper> tl = new ThreadLocal<>(); + + public static class Wrapper { + public int y; + } + + @Actor + public void actor1() { + tl.set(w); + x = 1; + tl.get().y = 1; + } + + @Actor + public void actor2(II_Result r) { + tl.set(w); + r.r1 = tl.get().y; + r.r2 = x; + } + +} \ No newline at end of file