| /* |
| * Copyright (c) 2004, 2018, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package nsk.jvmti.GetThreadState; |
| |
| import nsk.share.Wicket; |
| import java.io.PrintStream; |
| |
| public class thrstat002 { |
| |
| public static final int STATUS_RUNNING = 0; |
| public static final int STATUS_MONITOR = 1; |
| public static final int STATUS_WAIT = 2; |
| |
| native static void init(int waitTime); |
| native static void checkStatus(int statInd, boolean susp); |
| native static int getRes(); |
| |
| public static void main(String[] args) { |
| args = nsk.share.jvmti.JVMTITest.commonInit(args); |
| |
| System.exit(run(args, System.out) + 95/*STATUS_TEMP*/); |
| } |
| |
| public static int run(String args[], PrintStream out) { |
| int waitTime = 2; |
| if (args.length > 0) { |
| try { |
| int i = Integer.parseInt(args[0]); |
| waitTime = i; |
| } catch (NumberFormatException ex) { |
| out.println("# Wrong argument \"" + args[0] |
| + "\", the default value is used"); |
| } |
| } |
| out.println("# Waiting time = " + waitTime + " mins"); |
| init(waitTime); |
| new thrstat002().meth(); |
| return getRes(); |
| } |
| |
| public static Wicket startingBarrier; |
| public static Wicket runningBarrier; |
| public static Object blockingMonitor = new Object(); |
| public static Lock endingMonitor = new Lock(); |
| |
| static volatile boolean targetAboutToLock = false; |
| |
| void meth() { |
| thrstat002a thr = new thrstat002a("thr1"); |
| startingBarrier = new Wicket(); |
| runningBarrier = new Wicket(); |
| |
| synchronized (blockingMonitor) { |
| thr.start(); |
| System.out.println("thrstat002.meth after thr.start()"); |
| |
| startingBarrier.waitFor(); |
| System.out.println("thrstat002.meth after thr.startingBarrier.waitFor()"); |
| |
| waitForThreadBlocked(thr); |
| |
| checkStatus(STATUS_MONITOR, false); |
| System.out.println("thrstat002.meth after checkStatus(STATUS_MONITOR,false)"); |
| |
| thr.suspend(); |
| System.out.println("thrstat002.meth after thr.suspend()"); |
| checkStatus(STATUS_MONITOR, true); |
| System.out.println("thrstat002.meth after checkStatus(STATUS_MONITOR,true)"); |
| |
| thr.resume(); |
| System.out.println("thrstat002.meth after thr.resume()"); |
| checkStatus(STATUS_MONITOR, false); |
| System.out.println("thrstat002.meth after checkStatus(STATUS_MONITOR,false)"); |
| } |
| |
| runningBarrier.waitFor(); |
| checkStatus(STATUS_RUNNING, false); |
| thr.suspend(); |
| checkStatus(STATUS_RUNNING, true); |
| thr.resume(); |
| checkStatus(STATUS_RUNNING, false); |
| thr.letItGo(); |
| |
| synchronized (endingMonitor) { |
| checkStatus(STATUS_WAIT, false); |
| thr.suspend(); |
| checkStatus(STATUS_WAIT, true); |
| thr.resume(); |
| checkStatus(STATUS_WAIT, false); |
| endingMonitor.val++; |
| endingMonitor.notifyAll(); |
| } |
| |
| try { |
| thr.join(); |
| } catch (InterruptedException e) { |
| throw new Error("Unexpected: " + e); |
| } |
| } |
| |
| private static void waitForThreadBlocked(Thread t) { |
| // Ensure that the thread is blocked on the right monitor |
| while (!targetAboutToLock || t.getState() != Thread.State.BLOCKED) { |
| try { |
| Thread.sleep(100); |
| } catch (InterruptedException ex) { |
| System.out.println("thrstat002.waitForThreadBlocked was interrupted: " + ex.getMessage()); |
| } |
| } |
| } |
| |
| static class Lock { |
| public int val = 0; |
| } |
| } |
| |
| class thrstat002a extends Thread { |
| private volatile boolean flag = true; |
| |
| public thrstat002a(String name) { |
| super(name); |
| } |
| |
| public void run() { |
| synchronized (thrstat002.endingMonitor) { |
| System.out.println("thrstat002a.run before startingBarrier.unlock"); |
| thrstat002.startingBarrier.unlock(); |
| |
| System.out.println("thrstat002a.run after startingBarrier.unlock"); |
| |
| System.out.println("thrstat002a.run before blockingMonitor lock"); |
| |
| thrstat002.targetAboutToLock = true; |
| |
| synchronized (thrstat002.blockingMonitor) { |
| System.out.println("thrstat002a.run blockingMonitor locked"); |
| } |
| System.out.println("thrstat002a.run after blockingMonitor lock"); |
| |
| thrstat002.runningBarrier.unlock(); |
| System.out.println("thrstat002a.run after runningBarrier unlock"); |
| int i = 0; |
| int n = 1000; |
| while (flag) { |
| if (n <= 0) { |
| n = 1000; |
| } |
| if (i > n) { |
| i = 0; |
| n--; |
| } |
| i++; |
| } |
| |
| thrstat002.endingMonitor.val = 0; |
| while (thrstat002.endingMonitor.val == 0) { |
| try { |
| thrstat002.endingMonitor.wait(); |
| } catch (InterruptedException e) { |
| throw new Error("Unexpected: " + e); |
| } |
| } |
| System.out.println("thrstat002a.run before endingMonitor unlock"); |
| } |
| } |
| |
| public void letItGo() { |
| flag = false; |
| } |
| } |