78 lines
2.4 KiB
Java
78 lines
2.4 KiB
Java
/*
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* Copyright (c) 2011 SAP SE. 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 TestShortArraycopy
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* @bug 7100935
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* @summary verify that shorts are copied element-wise atomic.
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* @run main/othervm -Xint TestShortArraycopy
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* @run main/othervm -Xcomp -Xbatch TestShortArraycopy
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* @author volker.simonis@gmail.com
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*/
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public class TestShortArraycopy {
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static short[] a1 = new short[8];
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static short[] a2 = new short[8];
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static short[] a3 = new short[8];
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static volatile boolean keepRunning = true;
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public static void main(String[] args) throws InterruptedException {
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for (int i = 0; i < a1.length ; i++) {
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a1[i] = (short)0xffff;
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a2[i] = (short)0xffff;
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a3[i] = (short)0x0000;
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}
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Thread reader = new Thread() {
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public void run() {
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while (keepRunning) {
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for (int j = 0; j < a1.length; j++) {
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short s = a1[j];
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if (s != (short)0xffff && s != (short)0x0000) {
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System.out.println("Error: s = " + s);
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throw new RuntimeException("wrong result");
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}
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}
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}
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}
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};
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Thread writer = new Thread() {
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public void run() {
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for (int i = 0; i < 1000000; i++) {
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System.arraycopy(a2, 5, a1, 3, 3);
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System.arraycopy(a3, 5, a1, 3, 3);
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}
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}
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};
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keepRunning = true;
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reader.start();
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writer.start();
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writer.join();
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keepRunning = false;
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reader.join();
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}
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}
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