1 /*
   2  * Copyright (c) 2007, 2012, 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 package org.graalvm.compiler.jtt.threads;
  26 
  27 import org.junit.Test;
  28 
  29 import org.graalvm.compiler.jtt.JTTTest;
  30 
  31 public class Object_wait01 extends JTTTest {
  32 
  33     private static class TestClass implements Runnable {
  34         @Override
  35         public void run() {
  36             int i = 0;
  37             while (i++ < 1000000 && !done) {
  38                 synchronized (object) {
  39                     count++;
  40                     object.notifyAll();
  41                 }
  42             }
  43         }
  44     }
  45 
  46     static volatile int count = 0;
  47     static volatile boolean done;
  48     static final Object object = new Object();
  49 
  50     public static boolean test(int i) throws InterruptedException {
  51         count = 0;
  52         done = false;
  53         new Thread(new TestClass()).start();
  54         synchronized (object) {
  55             while (count < i) {
  56                 object.wait();
  57             }
  58             done = true;
  59             return count >= i;
  60         }
  61     }
  62 
  63     @Test(timeout = 20000)
  64     public void run0() throws Throwable {
  65         runTest("test", 0);
  66     }
  67 
  68     @Test(timeout = 20000)
  69     public void run1() throws Throwable {
  70         runTest("test", 1);
  71     }
  72 
  73     @Test(timeout = 20000)
  74     public void run2() throws Throwable {
  75         runTest("test", 3);
  76     }
  77 
  78     @Test(timeout = 20000)
  79     public void run3() throws Throwable {
  80         runTest("test", 15);
  81     }
  82 
  83 }