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Datei: QuickAckTest.java Sprache: JAVA

/*
* Copyright (c) 2017, 2019, 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 8145635
* @summary Add TCP_QUICKACK socket option
* @modules jdk.net
* @run main/othervm QuickAckTest
*/
import java.io.IOException;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.MulticastSocket;
import java.net.ServerSocket;
import java.net.Socket;
import jdk.net.ExtendedSocketOptions;
import jdk.net.Sockets;

public class QuickAckTest {

    public static void main(String args[]) throws IOException {

        try (ServerSocket ss = new ServerSocket(0);
                Socket s = new Socket(InetAddress.getLoopbackAddress(), ss.getLocalPort());
                DatagramSocket ds = new DatagramSocket(0);
                MulticastSocket mc = new MulticastSocket(0)) {

            if (ss.supportedOptions().contains(ExtendedSocketOptions.TCP_QUICKACK)) {
                Sockets.setOption(ss, ExtendedSocketOptions.TCP_QUICKACK, true);
                if (!ss.getOption(ExtendedSocketOptions.TCP_QUICKACK)) {
                    throw new RuntimeException("Test failed, TCP_QUICKACK should"
                            + " have been set");
                }
            }
            if (s.supportedOptions().contains(ExtendedSocketOptions.TCP_QUICKACK)) {
                Sockets.setOption(s, ExtendedSocketOptions.TCP_QUICKACK, true);
                if (!s.getOption(ExtendedSocketOptions.TCP_QUICKACK)) {
                    throw new RuntimeException("Test failed, TCP_QUICKACK should"
                            + " have been set");
                }
            }
            if (ds.supportedOptions().contains(ExtendedSocketOptions.TCP_QUICKACK)) {
                throw new RuntimeException("Test failed, TCP_QUICKACK is applicable"
                        + " for TCP Sockets only.");
            }
            if (mc.supportedOptions().contains(ExtendedSocketOptions.TCP_QUICKACK)) {
                throw new RuntimeException("Test failed, TCP_QUICKACK is applicable"
                        + " for TCP Sockets only");
            }
        }
    }
}

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