| /* |
| * Copyright (c) 2001, 2010, 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 4940372 |
| * @summary Ensure that the wakeup state is cleared by selectNow() |
| */ |
| |
| import java.nio.channels.*; |
| |
| public class WakeupNow { |
| |
| public static void main(String[] args) throws Exception { |
| test1(); |
| test2(); |
| } |
| |
| // Test if selectNow clears wakeup with the wakeup fd and |
| // another fd in the selector. |
| // This fails before the fix on Linux |
| private static void test1() throws Exception { |
| Selector sel = Selector.open(); |
| Pipe p = Pipe.open(); |
| p.source().configureBlocking(false); |
| p.source().register(sel, SelectionKey.OP_READ); |
| sel.wakeup(); |
| // ensure wakeup is consumed by selectNow |
| Thread.sleep(2000); |
| sel.selectNow(); |
| long startTime = System.currentTimeMillis(); |
| int n = sel.select(2000); |
| long endTime = System.currentTimeMillis(); |
| p.source().close(); |
| p.sink().close(); |
| sel.close(); |
| if (endTime - startTime < 1000) |
| throw new RuntimeException("test failed"); |
| } |
| |
| // Test if selectNow clears wakeup with only the wakeup fd |
| // in the selector. |
| // This fails before the fix on Solaris |
| private static void test2() throws Exception { |
| Selector sel = Selector.open(); |
| Pipe p = Pipe.open(); |
| p.source().configureBlocking(false); |
| sel.wakeup(); |
| // ensure wakeup is consumed by selectNow |
| Thread.sleep(2000); |
| sel.selectNow(); |
| long startTime = System.currentTimeMillis(); |
| int n = sel.select(2000); |
| long endTime = System.currentTimeMillis(); |
| sel.close(); |
| if (endTime - startTime < 1000) |
| throw new RuntimeException("test failed"); |
| } |
| |
| } |