/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
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 * 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.
 *
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 */

/* @test
 * @bug 8195160
 * @summary Unit test for shutdown, shutdownInput  and isInputShutdown
 * @requires (os.family == "linux")
 * @library .. /test/lib
 * @build RsocketTest
 * @run main/othervm -Djava.net.preferIPv4Stack=true Connect
 */

import java.io.IOException;
import java.net.*;
import java.nio.ByteBuffer;
import java.nio.channels.*;
import jdk.net.Sockets;

public class Shutdown {

    /**
     * Accept a connection, and close it immediately causing a hard reset.
     */
    static void acceptAndReset(ServerSocketChannel ssc) throws IOException {
        SocketChannel peer = ssc.accept();
        try {
            peer.configureBlocking(false);
            peer.write(ByteBuffer.wrap(new byte[128*1024]));
        } finally {
            peer.close();
        }
    }

    public static void main(String[] args) throws Exception {
        if (!RsocketTest.isRsocketAvailable())
            return;
        InetAddress lh = InetAddress.getLocalHost();

        ServerSocketChannel ssc = Sockets.openRdmaServerSocketChannel()
            .bind(new InetSocketAddress(lh, 0));
        try {
            int port = ((InetSocketAddress)(ssc.getLocalAddress())).getPort();
            SocketAddress remote = new InetSocketAddress(lh, port);

            // Test SocketChannel shutdownXXX
            SocketChannel sc;
            sc = Sockets.openRdmaSocketChannel();
            sc.connect(remote);
            try {
                acceptAndReset(ssc);
                sc.shutdownInput();
                sc.shutdownOutput();
            } catch (Exception e) {
                throw new RuntimeException("Test Failed");
            } finally {
                sc.close();
            }

            // Test Socket adapter shutdownXXX and isShutdownInput
            sc = Sockets.openRdmaSocketChannel();
            sc.connect(remote);

            try {
                acceptAndReset(ssc);
                boolean before = sc.socket().isInputShutdown();
                sc.socket().shutdownInput();
                boolean after = sc.socket().isInputShutdown();
                if (before || !after)
                    throw new RuntimeException("Before and after test failed");
                sc.socket().shutdownOutput();
            } finally {
                sc.close();
            }
        } finally {
            ssc.close();
        }
    }
}