1 /*
   2  * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @summary Test launches unit tests inside vm concurrently
  27  * @library /test/lib
  28  * @modules java.base/jdk.internal.misc
  29  *          java.management
  30  * @build sun.hotspot.WhiteBox
  31  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  32  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  33  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI RunUnitTestsConcurrently 30 15000
  34  */
  35 
  36 import jdk.test.lib.Platform;
  37 import sun.hotspot.WhiteBox;
  38 
  39 public class RunUnitTestsConcurrently {
  40 
  41   private static WhiteBox wb;
  42   private static long timeout;
  43   private static long timeStamp;
  44 
  45   public static class Worker implements Runnable {
  46     @Override
  47     public void run() {
  48       while (System.currentTimeMillis() - timeStamp < timeout) {
  49         WhiteBox.getWhiteBox().runMemoryUnitTests();
  50       }
  51     }
  52   }
  53 
  54   public static void main(String[] args) throws InterruptedException {
  55     if (!Platform.isDebugBuild() || !Platform.is64bit()) {
  56       return;
  57     }
  58     wb = WhiteBox.getWhiteBox();
  59     System.out.println("Starting threads");
  60 
  61     int threads = Integer.valueOf(args[0]);
  62     timeout = Long.valueOf(args[1]);
  63 
  64     timeStamp = System.currentTimeMillis();
  65 
  66     Thread[] threadsArray = new Thread[threads];
  67     for (int i = 0; i < threads; i++) {
  68       threadsArray[i] = new Thread(new Worker());
  69       threadsArray[i].start();
  70     }
  71     for (int i = 0; i < threads; i++) {
  72       threadsArray[i].join();
  73     }
  74 
  75     System.out.println("Quitting test.");
  76   }
  77 }