/*

 * Copyright 1998 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

/* @test

   @bug 4156625

   @summary  Socket.setSoTimeout(T) can cause incorrect delay of T

             under green threads

   @author Tom Rodriguez

 */

/*

 * This program depends a bit on the particular behaviour of the green

 * threads scheduler to produce the problem, but given that the underlying

 * bug a green threads bug, I think that's OK.

 */

import java.net.*;

public class SoTimeout implements Runnable {

    static ServerSocket serverSocket;

    static long timeWritten;

    static InetAddress addr;

    static int port;

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

        addr = InetAddress.getLocalHost();

        serverSocket = new ServerSocket(0);

        port = serverSocket.getLocalPort();

        byte[] b = new byte[12];

        Thread t = new Thread(new SoTimeout());

        t.start();

        Socket s = serverSocket.accept();

        // set a 1 second timeout on the socket

        s.setSoTimeout(1000);

        s.getInputStream().read(b, 0, b.length);

        s.close();

        long waited = System.currentTimeMillis() - timeWritten;

        // this sequence should complete fairly quickly and if it

        // takes something resembling the the SoTimeout value then

        // we are probably incorrectly blocking and not waking up

        if (waited > 500) {

            throw new Exception("shouldn't take " + waited + " to complete");

        }

    }

    public void run() {

        try {

            byte[] b = new byte[12];

            Socket s = new Socket(addr, port);

            Thread.yield();

            timeWritten = System.currentTimeMillis();

            s.getOutputStream().write(b, 0, 12);

            s.close();

        } catch (Exception e) {

            e.printStackTrace();

        }

    }

}