/* * Copyright (c) 2006, 2018, 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 8195160 * @summary RDMA Socket setTcpNoDelay & setKeepAlive working incorrectly * @requires (os.family == "linux") * @library .. /test/lib * @build RsocketTest * @run main/othervm -Djava.net.preferIPv4Stack=true TestTcpNoDelay */ import java.net.*; import java.io.IOException; import jdk.net.Sockets; public class TestTcpNoDelay { public static void main(String[] args) { if (!RsocketTest.isRsocketAvailable()) return; try { Socket socket = Sockets.openRdmaSocket(); boolean on = socket.getTcpNoDelay(); System.out.println("Get TCP_NODELAY = " + on); boolean opposite = on ? false: true; System.out.println("Set TCP_NODELAY to " + opposite); socket.setTcpNoDelay(opposite); boolean noDelay = socket.getTcpNoDelay(); System.out.println("Get TCP_NODELAY = " + noDelay); if (noDelay != opposite) throw new RuntimeException("setTcpNoDelay no working as expected"); } catch (IOException e){ e.printStackTrace(); } } }