/*

 * Copyright 1997 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.

 */

/**/

import java.io.*;

class LineLengthsSource implements Runnable {

    DataOutputStream uo;

    BufferedWriter to;

    PrintWriter log;

    public LineLengthsSource(OutputStream us, BufferedWriter ts,

                             PrintWriter log)

        throws IOException

    {

        uo = new DataOutputStream(us);

        to = ts;

        this.log = log;

    }

    private void flush() throws IOException {

        uo.flush();

        Thread.currentThread().yield();

        to.flush();

        Thread.currentThread().yield();

    }

    private String termString(int t) {

        switch (t) {

        case 0: return "\n";

        case 1: return "\r";

        case 2: return "\r\n";

        default: return "";

        }

    }

    private String termName(int t) {

        switch (t) {

        case 0: return "\\n";

        case 1: return "\\r";

        case 2: return "\\r\\n";

        default: return "";

        }

    }

    private void go(int t) throws IOException {

        for (int ln = 0; ln < 128; ln++) {

            String ts = termString(t);

            StringBuffer s = new StringBuffer(ln + ts.length());

            for (int i = 0; i < ln; i++)

                s.append('x');

            log.println("[" + ln + "]" + termName(t));

            uo.writeUTF(s.toString());

            s.append(ts);

            to.write(s.toString());

            flush();

        }

    }

    public void run() {

        try {

            go(0);

            go(1);

            go(2);

            uo.close();

            Thread.currentThread().yield();

            to.close();

            Thread.currentThread().yield();

        }

        catch (IOException x) {

            return;             /* Probably pipe broken */

        }

    }

}