/*

 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. 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

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 */

/*

 * @test

 * @summary Test launches unit tests inside vm concurrently

 * @library /test/lib

 * @modules java.base/jdk.internal.misc

 *          java.management

 * @build sun.hotspot.WhiteBox

 * @run main ClassFileInstaller sun.hotspot.WhiteBox

 *                              sun.hotspot.WhiteBox$WhiteBoxPermission

 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI RunUnitTestsConcurrently 30 15000

 */

import jdk.test.lib.Platform;

import sun.hotspot.WhiteBox;

public class RunUnitTestsConcurrently {

  private static WhiteBox wb;

  private static long timeout;

  private static long timeStamp;

  public static class Worker implements Runnable {

    @Override

    public void run() {

      while (System.currentTimeMillis() - timeStamp < timeout) {

        WhiteBox.getWhiteBox().runMemoryUnitTests();

      }

    }

  }

  public static void main(String[] args) throws InterruptedException {

    if (!Platform.isDebugBuild() || !Platform.is64bit()) {

      return;

    }

    wb = WhiteBox.getWhiteBox();

    System.out.println("Starting threads");

    int threads = Integer.valueOf(args[0]);

    timeout = Long.valueOf(args[1]);

    timeStamp = System.currentTimeMillis();

    Thread[] threadsArray = new Thread[threads];

    for (int i = 0; i < threads; i++) {

      threadsArray[i] = new Thread(new Worker());

      threadsArray[i].start();

    }

    for (int i = 0; i < threads; i++) {

      threadsArray[i].join();

    }

    System.out.println("Quitting test.");

  }

}