| /* |
| * Copyright (c) 2002, 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 4755720 |
| * @summary Test if OP_READ is detected with OP_WRITE in interestOps |
| */ |
| |
| import java.net.*; |
| import java.nio.*; |
| import java.nio.channels.*; |
| import java.util.*; |
| |
| public class OpRead { |
| |
| static void test() throws Exception { |
| ServerSocketChannel ssc = null; |
| SocketChannel sc = null; |
| SocketChannel peer = null; |
| try { |
| ssc = ServerSocketChannel.open().bind(new InetSocketAddress(0)); |
| |
| // loopback connection |
| InetAddress lh = InetAddress.getLocalHost(); |
| sc = SocketChannel.open(new InetSocketAddress(lh, ssc.socket().getLocalPort())); |
| peer = ssc.accept(); |
| |
| // peer sends message so that "sc" will be readable |
| int n = peer.write(ByteBuffer.wrap("Hello".getBytes())); |
| assert n > 0; |
| |
| sc.configureBlocking(false); |
| |
| Selector selector = Selector.open(); |
| SelectionKey key = sc.register(selector, SelectionKey.OP_READ | |
| SelectionKey.OP_WRITE); |
| |
| boolean done = false; |
| int failCount = 0; |
| while (!done) { |
| int nSelected = selector.select(); |
| if (nSelected > 0) { |
| if (nSelected > 1) |
| throw new RuntimeException("More than one channel selected"); |
| Set<SelectionKey> keys = selector.selectedKeys(); |
| Iterator<SelectionKey> iterator = keys.iterator(); |
| while (iterator.hasNext()) { |
| key = iterator.next(); |
| iterator.remove(); |
| if (key.isWritable()) { |
| failCount++; |
| if (failCount > 10) |
| throw new RuntimeException("Test failed"); |
| Thread.sleep(250); |
| } |
| if (key.isReadable()) { |
| done = true; |
| } |
| } |
| } |
| } |
| } finally { |
| if (peer != null) peer.close(); |
| if (sc != null) sc.close(); |
| if (ssc != null) ssc.close(); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| test(); |
| } |
| |
| } |