1 /*
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   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   7  * published by the Free Software Foundation.
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  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).
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  23 
  24 /* @test
  25  * @bug 8195160
  26  * @summary Unit test for closing socket channels
  27  * @requires (os.family == "linux")
  28  * @library .. /test/lib
  29  * @build RsocketTest
  30  * @run main/othervm -Djava.net.preferIPv4Stack=true Close
  31  */
  32 import java.io.IOException;
  33 import java.net.*;
  34 import java.nio.channels.*;
  35 import jdk.net.Sockets;
  36 
  37 public class Close {
  38 
  39     static SelectionKey open() throws IOException {
  40         SocketChannel sc = Sockets.openRdmaSocketChannel();
  41         Selector sel = Sockets.openRdmaSelector();
  42         sc.configureBlocking(false);
  43         return sc.register(sel, SelectionKey.OP_READ);
  44     }
  45 
  46     static void check(SelectionKey sk) throws IOException {
  47         if (sk.isValid())
  48             throw new RuntimeException("Key still valid");
  49         if (sk.channel().isOpen())
  50             throw new RuntimeException("Channel still open");
  51     }
  52 
  53     static void testSocketClose() throws IOException {
  54         SelectionKey sk = open();
  55         check(sk);
  56     }
  57 
  58     static void testChannelClose() throws IOException {
  59         SelectionKey sk = open();
  60         try {
  61             sk.channel().close();
  62             check(sk);
  63         } finally {
  64             sk.selector().close();
  65         }
  66     }
  67 
  68     public static void main(String[] args) throws Exception {
  69         if (!RsocketTest.isRsocketAvailable())
  70             return;
  71 
  72         testChannelClose();
  73     }
  74 }