russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
97 lines
3.3 KiB
Java
97 lines
3.3 KiB
Java
/*
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* Copyright (c) 2008, 2025, 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 4607272 8364761
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* @summary tests tasks can be submitted to a channel group's thread pool.
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* @run junit AsExecutor
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*/
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import java.io.IOException;
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import java.nio.channels.AsynchronousChannelGroup;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.Executor;
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import java.util.concurrent.Executors;
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import java.util.concurrent.ThreadFactory;
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import java.util.stream.Stream;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.params.ParameterizedTest;
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import org.junit.jupiter.params.provider.Arguments;
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import org.junit.jupiter.params.provider.MethodSource;
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import static org.junit.jupiter.api.Assertions.assertThrows;
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public class AsExecutor {
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private static ThreadFactory factory;
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@BeforeAll
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public static void createThreadFactory() {
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factory = Executors.defaultThreadFactory();
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}
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private static Stream<Arguments> channelGroups() throws IOException {
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List<Arguments> list = new ArrayList<Arguments>();
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list.add(Arguments.of(AsynchronousChannelGroup
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.withFixedThreadPool(5, factory)));
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list.add(Arguments.of(AsynchronousChannelGroup
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.withCachedThreadPool(Executors.newCachedThreadPool(factory), 0)));
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list.add(Arguments.of(AsynchronousChannelGroup
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.withThreadPool(Executors.newFixedThreadPool(10, factory))));
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return list.stream();
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}
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@ParameterizedTest
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@MethodSource("channelGroups")
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public void simpleTask(AsynchronousChannelGroup group)
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throws InterruptedException
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{
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try {
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Executor executor = (Executor)group;
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final CountDownLatch latch = new CountDownLatch(1);
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executor.execute(new Runnable() {
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public void run() {
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latch.countDown();
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}
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});
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latch.await();
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} finally {
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group.shutdown();
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}
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}
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@ParameterizedTest
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@MethodSource("channelGroups")
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public void nullTask(AsynchronousChannelGroup group) {
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Executor executor = (Executor)group;
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try {
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assertThrows(NullPointerException.class,
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() -> executor.execute(null));
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} finally {
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group.shutdown();
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}
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}
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}
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