Mercurial > hg > graal-compiler
view test/runtime/7100935/TestShortArraycopy.java @ 6822:f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
Reviewed-by: jrose, kvn
author | twisti |
---|---|
date | Mon, 01 Oct 2012 14:50:10 -0700 |
parents | 16f9fa2bf76c |
children |
line wrap: on
line source
/* * Copyright 2011 SAP AG. 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. * * 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. */ /* * @test TestShortArraycopy * @bug 7100935 * @summary verify that shorts are copied element-wise atomic. * @run main/othervm -Xint TestShortArraycopy * @run main/othervm -Xcomp -Xbatch TestShortArraycopy * @author volker.simonis@gmail.com */ public class TestShortArraycopy { static short[] a1 = new short[8]; static short[] a2 = new short[8]; static short[] a3 = new short[8]; static volatile boolean keepRunning = true; public static void main(String[] args) throws InterruptedException { for (int i = 0; i < a1.length ; i++) { a1[i] = (short)0xffff; a2[i] = (short)0xffff; a3[i] = (short)0x0000; } Thread reader = new Thread() { public void run() { while (keepRunning) { for (int j = 0; j < a1.length; j++) { short s = a1[j]; if (s != (short)0xffff && s != (short)0x0000) { System.out.println("Error: s = " + s); throw new RuntimeException("wrong result"); } } } } }; Thread writer = new Thread() { public void run() { for (int i = 0; i < 1000000; i++) { System.arraycopy(a2, 5, a1, 3, 3); System.arraycopy(a3, 5, a1, 3, 3); } } }; keepRunning = true; reader.start(); writer.start(); writer.join(); keepRunning = false; reader.join(); } }