101 lines
3.4 KiB
Java
101 lines
3.4 KiB
Java
/*
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* Copyright (c) 2016, 2017, 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 8165000 8172547
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* @summary Verify no IOException on OS X for large timeout value in select()
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* and that timeout does not occur too early on Windows.
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* @requires (os.family == "mac" | os.family == "windows")
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*/
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import java.io.IOException;
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import java.nio.channels.Selector;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicReference;
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public class SelectTimeout {
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private static final long BIG_TIMEOUT = 100_000_001_000L; // 8165000
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private static final long BIGGER_TIMEOUT = 850_000_000_000_000L; // 8172547
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private static final long SLEEP_MILLIS = 10_000;
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public static void main(String[] args)
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throws IOException, InterruptedException {
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int failures = 0;
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long[] timeouts =
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new long[] {1, BIG_TIMEOUT/2, BIG_TIMEOUT - 1, BIG_TIMEOUT,
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BIGGER_TIMEOUT};
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for (long t : timeouts) {
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if (!test(t)) {
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failures++;
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}
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}
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if (failures > 0) {
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throw new RuntimeException("Test failed!");
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} else {
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System.out.println("Test succeeded");
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}
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}
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private static boolean test(final long timeout)
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throws InterruptedException, IOException {
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AtomicReference<Exception> theException =
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new AtomicReference<>();
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AtomicBoolean isTimedOut = new AtomicBoolean();
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Selector selector = Selector.open();
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Thread t = new Thread(() -> {
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try {
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selector.select(timeout);
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isTimedOut.set(true);
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} catch (IOException ioe) {
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theException.set(ioe);
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}
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});
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t.start();
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t.join(SLEEP_MILLIS);
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boolean result;
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if (theException.get() == null) {
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if (timeout > SLEEP_MILLIS && isTimedOut.get()) {
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System.err.printf("Test timed out early with timeout %d%n",
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timeout);
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result = false;
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} else {
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System.out.printf("Test succeeded with timeout %d%n", timeout);
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result = true;
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}
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} else {
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System.err.printf("Test failed with timeout %d%n", timeout);
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theException.get().printStackTrace();
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result = false;
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}
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t.interrupt();
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selector.close();
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return result;
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}
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}
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