jdk-24/test/jdk/java/util/concurrent/BlockingQueue/Interrupt.java

/*
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 * 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.
 *
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 * questions.
 */

/*
 * @test
 * @bug 6384064
 * @summary Check proper handling of interrupts
 * @author Martin Buchholz
 * @library /test/lib
 */

import static java.util.concurrent.TimeUnit.MILLISECONDS;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingDeque;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.LinkedBlockingDeque;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.Executor;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import jdk.test.lib.Utils;

public class Interrupt {
    static final long LONG_DELAY_MS = Utils.adjustTimeout(10_000);

    static void checkInterrupted0(Iterable<Fun> fs, Executor ex) {
        for (Fun f : fs) {
            try {
                ex.execute(new Runnable() {
                        final Thread thisThread = Thread.currentThread();
                        public void run() { thisThread.interrupt(); }});
                f.f();
                fail("Expected InterruptedException not thrown");
            } catch (InterruptedException e) {
                check(! Thread.interrupted());
            } catch (Throwable t) { unexpected(t); }
        }
    }

    static void checkInterrupted(Iterable<Fun> fs)
            throws InterruptedException {
        final Executor immediateExecutor = new Executor() {
                public void execute(Runnable r) {
                    r.run(); }};
        final ScheduledThreadPoolExecutor stpe
            = new ScheduledThreadPoolExecutor(1);
        final Executor delayedExecutor = new Executor() {
                public void execute(Runnable r) {
                    stpe.schedule(r, 20, MILLISECONDS); }};
        checkInterrupted0(fs, immediateExecutor);
        checkInterrupted0(fs, delayedExecutor);
        stpe.shutdown();
        check(stpe.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
    }

    static void testQueue(final BlockingQueue<Object> q) {
        try {
            final BlockingDeque<Object> deq =
                (q instanceof BlockingDeque<?>) ?
                (BlockingDeque<Object>) q : null;
            q.clear();
            List<Fun> fs = new ArrayList<>();
            fs.add(() -> q.take());
            fs.add(() -> q.poll(LONG_DELAY_MS, MILLISECONDS));
            if (deq != null) {
                fs.add(() -> deq.takeFirst());
                fs.add(() -> deq.takeLast());
                fs.add(() -> deq.pollFirst(LONG_DELAY_MS, MILLISECONDS));
                fs.add(() -> deq.pollLast(LONG_DELAY_MS, MILLISECONDS));
            }

            checkInterrupted(fs);

            // fill q to capacity, to ensure insertions will block
            while (q.remainingCapacity() > 0)
                try { q.put(1); }
                catch (Throwable t) { unexpected(t); }

            fs.clear();
            fs.add(() -> q.put(1));
            fs.add(() -> q.offer(1, LONG_DELAY_MS, MILLISECONDS));
            if (deq != null) {
                fs.add(() -> deq.putFirst(1));
                fs.add(() -> deq.putLast(1));
                fs.add(() -> deq.offerFirst(1, LONG_DELAY_MS, MILLISECONDS));
                fs.add(() -> deq.offerLast(1, LONG_DELAY_MS, MILLISECONDS));
            }
            checkInterrupted(fs);
        } catch (Throwable t) {
            System.out.printf("Failed: %s%n", q.getClass().getSimpleName());
            unexpected(t);
        } finally {
            Thread.interrupted();       // clear interrupts, just in case
        }
    }

    private static void realMain(final String[] args) throws Throwable {
        testQueue(new SynchronousQueue<Object>());
        testQueue(new ArrayBlockingQueue<Object>(1,false));
        testQueue(new ArrayBlockingQueue<Object>(1,true));
        testQueue(new LinkedBlockingQueue<Object>(1));
        testQueue(new LinkedBlockingDeque<Object>(1));
    }

    //--------------------- Infrastructure ---------------------------
    static volatile int passed = 0, failed = 0;
    static void pass() {passed++;}
    static void fail() {failed++; Thread.dumpStack();}
    static void fail(String msg) {System.out.println(msg); fail();}
    static void unexpected(Throwable t) {failed++; t.printStackTrace();}
    static void check(boolean cond) {if (cond) pass(); else fail();}
    static void equal(Object x, Object y) {
        if (x == null ? y == null : x.equals(y)) pass();
        else fail(x + " not equal to " + y);}
    public static void main(String[] args) throws Throwable {
        try {realMain(args);} catch (Throwable t) {unexpected(t);}
        System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
        if (failed > 0) throw new AssertionError("Some tests failed");}
    interface Fun {void f() throws Throwable;}
}