1 /*
   2  * Copyright (c) 2004, 2018, 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 package nsk.jvmti.scenarios.contention.TC02;
  25 
  26 import java.io.PrintStream;
  27 
  28 import nsk.share.*;
  29 import nsk.share.jvmti.*;
  30 
  31 //    THIS TEST IS LINE NUMBER SENSITIVE

































  32 
  33 public class tc02t001 extends DebugeeClass {
  34 
  35     // run test from command line
  36     public static void main(String argv[]) {
  37         argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
  38 
  39         // JCK-compatible exit
  40         System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
  41     }
  42 
  43     // run test from JCK-compatible environment
  44     public static int run(String argv[], PrintStream out) {
  45         return new tc02t001().runIt(argv, out);
  46     }
  47 
  48     /* =================================================================== */
  49 
  50     // scaffold objects
  51     ArgumentHandler argHandler = null;
  52     Log log = null;
  53     int status = Consts.TEST_PASSED;
  54     static long timeout = 0;
  55 



  56     // tested thread
  57     tc02t001Thread thread = null;
  58 





















  59     // run debuggee
  60     public int runIt(String argv[], PrintStream out) {
  61         argHandler = new ArgumentHandler(argv);
  62         log = new Log(out, argHandler);
  63         timeout = argHandler.getWaitTime() * 60 * 1000;
  64         log.display("Timeout = " + timeout + " msc.");
  65 
  66         thread = new tc02t001Thread("Debuggee Thread");
  67         synchronized (thread.M) {
  68             thread.start();
  69             thread.startingBarrier.waitFor();
  70             status = checkStatus(status);
  71 

  72             thread.waitingBarrier1.unlock();
  73             try {
  74                 Thread.sleep(1000); // Wait for contended "synchronized (M)"
  75                 thread.M.wait(timeout);
  76             } catch (InterruptedException e) {
  77                 throw new Failure(e);
  78             }
  79 

  80             thread.waitingBarrier2.unlock();
  81             try {
  82                 Thread.sleep(1000); // Wait for contended "synchronized (M)"
  83                 thread.M.wait(timeout);
  84             } catch (InterruptedException e) {
  85                 throw new Failure(e);
  86             }
  87 

  88             thread.waitingBarrier3.unlock();
  89             try {
  90                 Thread.sleep(1000); // Wait for contended "synchronized (M)"
  91                 thread.M.wait(timeout);
  92             } catch (InterruptedException e) {
  93                 throw new Failure(e);
  94             }
  95         }
  96 
  97         try {
  98             thread.join(timeout);
  99         } catch (InterruptedException e) {
 100             throw new Failure(e);
 101         }
 102 
 103         log.display("Debugee finished");
 104         status = checkStatus(status);
 105 
 106         return status;
 107     }
 108 }
 109 
 110 /* =================================================================== */
 111 
 112 class tc02t001Thread extends Thread {
 113     public Wicket startingBarrier = new Wicket();
 114     public Wicket waitingBarrier1 = new Wicket();
 115     public Wicket waitingBarrier2 = new Wicket();
 116     public Wicket waitingBarrier3 = new Wicket();
 117     public Object M = new Object();
 118 
 119     public tc02t001Thread(String name) {
 120         super(name);
 121     }
 122 
 123     public void run() {
 124         startingBarrier.unlock();
 125 
 126         waitingBarrier1.waitFor();
 127         synchronized (M) { // tc02t001.c::lines[0]
 128             M.notify();
 129         }
 130 
 131         waitingBarrier2.waitFor();
 132         synchronized (M) { // tc02t001.c::lines[1]
 133             M.notify();
 134         }
 135 
 136         waitingBarrier3.waitFor();
 137         synchronized (M) { // tc02t001.c::lines[2]
 138             M.notify();
 139         }
 140     }
 141 }

   1 /*
   2  * Copyright (c) 2004, 2019, 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 package nsk.jvmti.scenarios.contention.TC02;
  25 
  26 import java.io.PrintStream;
  27 
  28 import nsk.share.*;
  29 import nsk.share.jvmti.*;
  30 
  31 //    THIS CLASS IS LINE NUMBER SENSITIVE
  32 
  33 class tc02t001Thread extends Thread {
  34     public Wicket startingBarrier = new Wicket();
  35     public Wicket waitingBarrier1 = new Wicket();
  36     public Wicket waitingBarrier2 = new Wicket();
  37     public Wicket waitingBarrier3 = new Wicket();
  38     public Object M = new Object();
  39 
  40     public tc02t001Thread(String name) {
  41         super(name);
  42     }
  43 
  44     public void run() {
  45         startingBarrier.unlock();
  46 
  47         waitingBarrier1.waitFor();
  48         synchronized (M) { // tc02t001.c::lines[0]
  49             M.notify();
  50         }
  51 
  52         waitingBarrier2.waitFor();
  53         synchronized (M) { // tc02t001.c::lines[1]
  54             M.notify();
  55         }
  56 
  57         waitingBarrier3.waitFor();
  58         synchronized (M) { // tc02t001.c::lines[2]
  59             M.notify();
  60         }
  61     }
  62 }
  63 
  64 /* =================================================================== */
  65 
  66 public class tc02t001 extends DebugeeClass {
  67 
  68     // run test from command line
  69     public static void main(String argv[]) {
  70         argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
  71 
  72         // JCK-compatible exit
  73         System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
  74     }
  75 
  76     // run test from JCK-compatible environment
  77     public static int run(String argv[], PrintStream out) {
  78         return new tc02t001().runIt(argv, out);
  79     }
  80 
  81     /* =================================================================== */
  82 
  83     // scaffold objects
  84     ArgumentHandler argHandler = null;
  85     Log log = null;
  86     int status = Consts.TEST_PASSED;
  87     static long timeout = 0;
  88 
  89     private static volatile int lastEnterEventsCount;
  90     private static native   int enterEventsCount();
  91 
  92     // tested thread
  93     tc02t001Thread thread = null;
  94 
  95     static void log (String msg) { System.out.println(msg); }
  96 
  97     private void waitForContendedEnterEvent() {
  98         try {
  99             for (int j = 0; j < (timeout / 20); j++) {
 100                 Thread.sleep(20);
 101                 if (enterEventsCount() > lastEnterEventsCount) {
 102                     log("Got expected MonitorContendedEnter event\n");
 103                     break;
 104                 }
 105             }
 106             if (enterEventsCount() == lastEnterEventsCount) {
 107                 String msg = "Timeout in waiting for a MonitorContendedEnter event";
 108                 throw new RuntimeException(msg);
 109             }
 110             thread.M.wait(timeout);
 111         } catch (InterruptedException e) {
 112             throw new Failure(e);
 113         }
 114     }
 115 
 116     // run debuggee
 117     public int runIt(String argv[], PrintStream out) {
 118         argHandler = new ArgumentHandler(argv);
 119         log = new Log(out, argHandler);
 120         timeout = argHandler.getWaitTime() * 60 * 1000;
 121         log.display("Timeout = " + timeout + " msc.");
 122 
 123         thread = new tc02t001Thread("Debuggee Thread");
 124         synchronized (thread.M) {
 125             thread.start();
 126             thread.startingBarrier.waitFor();
 127             status = checkStatus(status);
 128 
 129             lastEnterEventsCount = enterEventsCount();
 130             thread.waitingBarrier1.unlock();
 131             log("Waiting for MonitorEnterEvent #1");
 132             waitForContendedEnterEvent();




 133 
 134             lastEnterEventsCount = enterEventsCount();
 135             thread.waitingBarrier2.unlock();
 136             log("Waiting for MonitorEnterEvent #2");
 137             waitForContendedEnterEvent();




 138 
 139             lastEnterEventsCount = enterEventsCount();
 140             thread.waitingBarrier3.unlock();
 141             log("Waiting for MonitorEnterEvent #3");
 142             waitForContendedEnterEvent();




 143         }
 144 
 145         try {
 146             thread.join(timeout);
 147         } catch (InterruptedException e) {
 148             throw new Failure(e);
 149         }
 150 
 151         log.display("Debugee finished");
 152         status = checkStatus(status);
 153 
 154         return status;

































 155     }
 156 }