/*

 * 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();

  }

}