1 /*
2  * Copyright (c) 2007, 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 package nsk.monitoring.share.thread;
24 
25 import nsk.share.log.Log;
26 import java.lang.management.ThreadInfo;
27 import java.lang.management.MonitorInfo;
28 import java.lang.management.LockInfo;
29 
30 /**
31  * SleepingThread is RecursiveMonitoringThread that sleeps.
32  */
33 public class SleepingThread extends RecursiveMonitoringThread {
34         private String lock = new String("a lock");
35         private volatile boolean sleeping = false;
36         private Object readyLock = new Object();
37         private static final String[] expectedMethods = {
38                 "java.lang.Thread.sleep",
39                 "nsk.monitoring.share.thread.SleepingThread.runInside"
40         };
41 
SleepingThread(Log log, RunType recursionType, int maxDepth)42         public SleepingThread(Log log, RunType recursionType, int maxDepth) {
43                 super(log, recursionType, maxDepth);
44         }
45 
checkThreadInfo(ThreadInfo info)46         public void checkThreadInfo(ThreadInfo info) {
47                 super.checkThreadInfo(info);
48                 verify(info.getThreadState() == Thread.State.TIMED_WAITING, "ThreadInfo.getThreadState() = " + info.getThreadState() + " != " + Thread.State.TIMED_WAITING);
49                 verify(info.getBlockedTime() == 0 || info.getBlockedTime() == -1, "ThreadInfo.getBlockedTime() == " + info.getBlockedTime());
50                 verify(info.getBlockedCount() >= 0, "ThreadInfo.getBlockedCount() = " + info.getBlockedCount() + " != 0");
51                 verify(info.getWaitedTime() == 0 || info.getWaitedTime() == -1, "ThreadInfo.getWaitedTime() == " + info.getWaitedTime());
52                 verify(info.getWaitedCount() == 1, "ThreadInfo.getWaitedCount() = " + info.getWaitedCount() + " != 1");
53                 verify(info.getLockInfo() == null, "ThreadInfo.getLockInfo() != null ");
54                 verify(info.getLockName() == null, "ThreadInfo.getLockName() " + info.getLockName() + " != null");
55                 verify(info.getLockOwnerId() == -1, "ThreadInfo.getLockOwnerId() = " + info.getLockOwnerId() + " != null");
56                 verify(info.getLockOwnerName() == null, "ThreadInfo.getLockOwnerName() = " + info.getLockOwnerName() + " != null");
57                 checkMonitorInfo(info.getLockedMonitors(), null);
58                 checkSynchronizers(info.getLockedSynchronizers(), null);
59         }
60 
waitState()61         public void waitState() {
62                 synchronized (readyLock) {
63                         while (!sleeping) {
64                                 try {
65                                         readyLock.wait();
66                                 } catch (InterruptedException e) {
67                                         log.warn(e);
68                                 }
69                         }
70                 }
71                 waitThreadState(Thread.State.TIMED_WAITING);
72         }
73 
finish()74         public void finish() {
75                 sleeping = false;
76                 runner.interrupt();
77         }
78 
runInside()79         protected void runInside() {
80                 synchronized (readyLock) {
81                         sleeping = true;
82                         readyLock.notifyAll();
83                 }
84                 while (sleeping) {
85                         try {
86                                 Thread.sleep(10000000);
87                         } catch (InterruptedException e) {
88                         }
89                 }
90         }
91 
isStackTraceElementExpected(StackTraceElement element)92         protected boolean isStackTraceElementExpected(StackTraceElement element) {
93                 return super.isStackTraceElementExpected(element) || checkStackTraceElement(element, expectedMethods);
94         }
95 }
96