98 lines
3.7 KiB
Java
98 lines
3.7 KiB
Java
/*
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* Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6772683
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* @summary Thread.isInterrupted() fails to return true on multiprocessor PC
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*
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* @run main/othervm compiler.c2.InterruptedTest 100
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*/
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package compiler.c2;
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public class InterruptedTest {
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public static void main(String[] args) throws Exception {
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/* The value of the threshold determines for how many seconds
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* the main thread must wait for the worker thread. On highly
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* loaded systems it can take a while until the worker thread
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* obtains CPU time and is able to check if it was interrupted
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* by the main thread. The higher the threshold the likelier
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* the worker thread can check if it was interrupted (that is
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* required for successul test execution).
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*/
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int threshold = 100;
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if (args.length != 1) {
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System.out.println("Incorrect number of arguments");
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System.exit(1);
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}
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try {
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threshold = Integer.parseInt(args[0]);
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} catch (NumberFormatException e) {
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System.out.println("Invalid argument format");
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System.exit(1);
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}
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if (threshold < 1) {
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System.out.println("Threshold must be at least 1");
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System.exit(1);
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}
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Thread workerThread = new Thread("worker") {
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public void run() {
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System.out.println("Worker thread: running...");
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while (!Thread.currentThread().isInterrupted()) {
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}
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System.out.println("Worker thread: bye");
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}
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};
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System.out.println("Main thread: starts a worker thread...");
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workerThread.start();
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System.out.println("Main thread: waits 5 seconds after starting the worker thread");
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workerThread.join(5000); // Wait 5 sec to let run() method to be compiled
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int ntries = 0;
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while (workerThread.isAlive() && ntries < threshold) {
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System.out.println("Main thread: interrupts the worker thread...");
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workerThread.interrupt();
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if (workerThread.isInterrupted()) {
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System.out.println("Main thread: worker thread is interrupted");
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}
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ntries++;
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System.out.println("Main thread: waits 1 second for the worker thread to die...");
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workerThread.join(1000); // Wait 1 sec and try again
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}
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if (ntries == threshold) {
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System.out.println("Main thread: the worker thread did not die after " +
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ntries + " seconds have elapsed");
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System.exit(97);
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}
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System.out.println("Main thread: bye");
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}
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}
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