| /* |
| * Copyright (c) 2005, 2012, 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. |
| */ |
| |
| /* |
| * @test |
| * @bug 6277663 |
| * @summary Test TPE extensibility framework |
| * @library /lib/testlibrary/ |
| * @author Martin Buchholz |
| */ |
| |
| import static java.util.concurrent.TimeUnit.MILLISECONDS; |
| |
| import java.util.concurrent.ArrayBlockingQueue; |
| import java.util.concurrent.Callable; |
| import java.util.concurrent.FutureTask; |
| import java.util.concurrent.RunnableFuture; |
| import java.util.concurrent.RunnableScheduledFuture; |
| import java.util.concurrent.ScheduledThreadPoolExecutor; |
| import java.util.concurrent.ThreadPoolExecutor; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.function.BooleanSupplier; |
| import jdk.testlibrary.Utils; |
| |
| public class Custom { |
| static final long LONG_DELAY_MS = Utils.adjustTimeout(10_000); |
| static volatile int passed = 0, failed = 0; |
| static void pass() { passed++; } |
| static void fail() { failed++; Thread.dumpStack(); } |
| 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 {System.out.println(x + " not equal to " + y); fail(); }} |
| |
| private static class CustomTask<V> extends FutureTask<V> { |
| public static final AtomicInteger births = new AtomicInteger(0); |
| CustomTask(Callable<V> c) { super(c); births.getAndIncrement(); } |
| CustomTask(Runnable r, V v) { super(r, v); births.getAndIncrement(); } |
| } |
| |
| private static class CustomTPE extends ThreadPoolExecutor { |
| CustomTPE() { |
| super(threadCount, threadCount, |
| 30, TimeUnit.MILLISECONDS, |
| new ArrayBlockingQueue<Runnable>(2*threadCount)); |
| } |
| protected <V> RunnableFuture<V> newTaskFor(Callable<V> c) { |
| return new CustomTask<V>(c); |
| } |
| protected <V> RunnableFuture<V> newTaskFor(Runnable r, V v) { |
| return new CustomTask<V>(r, v); |
| } |
| } |
| |
| private static class CustomSTPE extends ScheduledThreadPoolExecutor { |
| public static final AtomicInteger decorations = new AtomicInteger(0); |
| CustomSTPE() { |
| super(threadCount); |
| } |
| protected <V> RunnableScheduledFuture<V> decorateTask( |
| Runnable r, RunnableScheduledFuture<V> task) { |
| decorations.getAndIncrement(); |
| return task; |
| } |
| protected <V> RunnableScheduledFuture<V> decorateTask( |
| Callable<V> c, RunnableScheduledFuture<V> task) { |
| decorations.getAndIncrement(); |
| return task; |
| } |
| } |
| |
| static int countExecutorThreads() { |
| Thread[] threads = new Thread[Thread.activeCount()+100]; |
| Thread.enumerate(threads); |
| int count = 0; |
| for (Thread t : threads) |
| if (t != null && t.getName().matches("pool-[0-9]+-thread-[0-9]+")) |
| count++; |
| return count; |
| } |
| |
| private static final int threadCount = 10; |
| |
| static long millisElapsedSince(long startTime) { |
| return (System.nanoTime() - startTime) / (1000L * 1000L); |
| } |
| |
| static void spinWaitUntil(BooleanSupplier predicate, long timeoutMillis) { |
| long startTime = -1L; |
| while (!predicate.getAsBoolean()) { |
| if (startTime == -1L) |
| startTime = System.nanoTime(); |
| else if (millisElapsedSince(startTime) > timeoutMillis) |
| throw new AssertionError( |
| String.format("timed out after %s ms", timeoutMillis)); |
| Thread.yield(); |
| } |
| } |
| |
| public static void main(String[] args) throws Throwable { |
| CustomTPE tpe = new CustomTPE(); |
| equal(tpe.getCorePoolSize(), threadCount); |
| equal(countExecutorThreads(), 0); |
| for (int i = 0; i < threadCount; i++) |
| tpe.submit(new Runnable() { public void run() {}}); |
| equal(countExecutorThreads(), threadCount); |
| equal(CustomTask.births.get(), threadCount); |
| tpe.shutdown(); |
| tpe.awaitTermination(LONG_DELAY_MS, MILLISECONDS); |
| spinWaitUntil(() -> countExecutorThreads() == 0, LONG_DELAY_MS); |
| |
| CustomSTPE stpe = new CustomSTPE(); |
| for (int i = 0; i < threadCount; i++) |
| stpe.submit(new Runnable() { public void run() {}}); |
| equal(CustomSTPE.decorations.get(), threadCount); |
| equal(countExecutorThreads(), threadCount); |
| stpe.shutdown(); |
| stpe.awaitTermination(LONG_DELAY_MS, MILLISECONDS); |
| spinWaitUntil(() -> countExecutorThreads() == 0, LONG_DELAY_MS); |
| |
| System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed); |
| if (failed > 0) throw new Exception("Some tests failed"); |
| } |
| } |