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