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