1 /*
   2  * Copyright (c) 2006, 2018, 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 8195160
  26  * @summary RDMA Socket setTcpNoDelay & setKeepAlive working incorrectly
  27  * @requires (os.family == "linux")
  28  * @library .. /test/lib
  29  * @build RsocketTest
  30  * @run main/othervm -Djava.net.preferIPv4Stack=true TestTcpNoDelay
  31  */
  32 
  33 import java.net.*;
  34 import java.io.IOException;
  35 import jdk.net.Sockets;
  36 
  37 public class TestTcpNoDelay
  38 {
  39     public static void main(String[] args) {
  40         if (!RsocketTest.isRsocketAvailable())
  41             return;
  42 
  43         try {
  44             Socket socket = Sockets.openRdmaSocket();
  45             boolean on = socket.getTcpNoDelay();
  46             System.out.println("Get TCP_NODELAY = " + on);
  47 
  48             boolean opposite = on ? false: true;
  49             System.out.println("Set TCP_NODELAY to " + opposite);
  50             socket.setTcpNoDelay(opposite);
  51 
  52             boolean noDelay = socket.getTcpNoDelay();
  53             System.out.println("Get TCP_NODELAY = " + noDelay);
  54 
  55             if (noDelay != opposite)
  56                 throw new RuntimeException("setTcpNoDelay no working as expected");
  57 
  58         } catch (IOException e){
  59             e.printStackTrace();
  60         }
  61     }
  62 
  63 }