1 /*
   2  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /* @test
  25  * @bug 4530007
  26  * @summary Test if keys reported ready multiple times
  27  * @library ..
  28  */
  29 
  30 import java.net.*;
  31 import java.io.*;
  32 import java.nio.*;
  33 import java.nio.channels.*;
  34 import java.nio.charset.*;
  35 import java.nio.channels.spi.SelectorProvider;
  36 
  37 public class KeysReady {
  38 
  39     static final int DAYTIME_PORT = 13;
  40     static final String DAYTIME_HOST = TestUtil.HOST;
  41 
  42     static void test() throws Exception {
  43         InetSocketAddress isa
  44             = new InetSocketAddress(InetAddress.getByName(DAYTIME_HOST),
  45                                     DAYTIME_PORT);
  46         SocketChannel sc = SocketChannel.open();
  47         sc.configureBlocking(false);
  48         sc.connect(isa);
  49 
  50         // Prepare a selector
  51         Selector selector = SelectorProvider.provider().openSelector();
  52         try {
  53             SelectionKey key = sc.register(selector, SelectionKey.OP_CONNECT);
  54             int keysAdded = selector.select();
  55             if (keysAdded > 0) {
  56                 keysAdded = selector.select(1000);
  57                 if (keysAdded > 0)
  58                     throw new Exception("Same key reported added twice");
  59             }
  60         } finally {
  61             selector.close();
  62             sc.close();
  63         }
  64     }
  65 
  66     public static void main(String[] args) throws Exception {
  67         test();



  68     }
  69 
  70 }

   1 /*
   2  * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /* @test
  25  * @bug 4530007
  26  * @summary Test if keys reported ready multiple times
  27  * @library ..
  28  */
  29 
  30 import java.net.*;


  31 import java.nio.channels.*;

  32 import java.nio.channels.spi.SelectorProvider;
  33 
  34 public class KeysReady {
  35 
  36     static void test(TestUtil.DayTimeServer dayTimeServer) throws Exception {
  37         InetSocketAddress isa = new InetSocketAddress(dayTimeServer.getAddress(),
  38                 dayTimeServer.getPort());




  39         SocketChannel sc = SocketChannel.open();
  40         sc.configureBlocking(false);
  41         sc.connect(isa);
  42 
  43         // Prepare a selector
  44         Selector selector = SelectorProvider.provider().openSelector();
  45         try {
  46             SelectionKey key = sc.register(selector, SelectionKey.OP_CONNECT);
  47             int keysAdded = selector.select();
  48             if (keysAdded > 0) {
  49                 keysAdded = selector.select(1000);
  50                 if (keysAdded > 0)
  51                     throw new Exception("Same key reported added twice");
  52             }
  53         } finally {
  54             selector.close();
  55             sc.close();
  56         }
  57     }
  58 
  59     public static void main(String[] args) throws Exception {
  60         try (TestUtil.DayTimeServer daytimeServer =
  61                         TestUtil.DayTimeServer.startNewServer(50)) {
  62             test(daytimeServer);
  63         }
  64     }
  65 
  66 }