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     2 **

     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the test suite of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

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    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

    19 ** Foundation and appearing in the file LICENSE.LGPL included in the

    20 ** packaging of this file.  Please review the following information to

    21 ** ensure the GNU Lesser General Public License version 2.1 requirements

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    23 **

    24 ** In addition, as a special exception, Nokia gives you certain additional

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    29 ** Nokia at qt-info@nokia.com.

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 #include <QtNetwork>

    42 

    43 class ClientServer : public QUdpSocket

    44 {

    45     Q_OBJECT

    46 public:

    47     enum Type {

    48         ConnectedClient,

    49         UnconnectedClient,

    50         Server

    51     };

    52 

    53     ClientServer(Type type, const QString &host, quint16 port)

    54         : type(type)

    55     {

    56         switch (type) {

    57         case Server:

    58             if (bind(0, ShareAddress | ReuseAddressHint)) {

    59                 printf("%d\n", localPort());

    60             } else {

    61                 printf("XXX\n");

    62             }

    63             break;

    64         case ConnectedClient:

    65             connectToHost(host, port);

    66             startTimer(250);

    67             printf("ok\n");

    68             break;

    69         case UnconnectedClient:

    70             peerAddress = host;

    71             peerPort = port;

    72             if (bind(QHostAddress::Any, port + 1, ShareAddress | ReuseAddressHint)) {

    73                 startTimer(250);

    74                 printf("ok\n");

    75             } else {

    76                 printf("XXX\n");

    77             }

    78             break;

    79         }

    80         fflush(stdout);

    81 

    82         connect(this, SIGNAL(readyRead()), this, SLOT(readData()));

    83     }

    84 

    85 protected:

    86     void timerEvent(QTimerEvent *event)

    87     {

    88         static int n = 0;

    89         switch (type) {

    90         case ConnectedClient:

    91             write(QByteArray::number(n++));

    92             break;

    93         case UnconnectedClient:

    94             writeDatagram(QByteArray::number(n++), peerAddress, peerPort);

    95             break;

    96         default:

    97             break;

    98         }

    99 

   100         QUdpSocket::timerEvent(event);

   101     }

   102 

   103 private slots:

   104     void readData()

   105     {

   106         printf("readData()\n");

   107         switch (type) {

   108         case ConnectedClient: {

   109             while (bytesAvailable() || hasPendingDatagrams()) {

   110                 QByteArray data = readAll();

   111                 printf("got %d\n", data.toInt());

   112             }

   113             break;

   114         }

   115         case UnconnectedClient: {

   116             while (hasPendingDatagrams()) {

   117                 QByteArray data;

   118                 data.resize(pendingDatagramSize());

   119                 readDatagram(data.data(), data.size());

   120                 printf("got %d\n", data.toInt());

   121             }

   122             break;

   123         }

   124         case Server: {

   125             while (hasPendingDatagrams()) {

   126                 QHostAddress sender;

   127                 quint16 senderPort;

   128                 QByteArray data;

   129                 data.resize(pendingDatagramSize());

   130                 readDatagram(data.data(), data.size(), &sender, &senderPort);

   131                 printf("got %d\n", data.toInt());

   132                 printf("sending %d\n", data.toInt() * 2);

   133                 writeDatagram(QByteArray::number(data.toInt() * 2), sender, senderPort);

   134             }

   135             break;

   136         }

   137         }

   138         fflush(stdout);

   139     }

   140 

   141 private:

   142     Type type;

   143     QHostAddress peerAddress;

   144     quint16 peerPort;

   145 };

   146 

   147 int main(int argc, char **argv)

   148 {

   149     QCoreApplication app(argc, argv);

   150     ClientServer::Type type;

   151     if (app.arguments().size() < 4)  {

   152         qDebug("usage: ./%s [ConnectedClient <server> <port>|UnconnectedClient <server> <port>|Server]", argv[0]);

   153         return 1;

   154     }

   155 

   156     QString arg = app.arguments().at(1).trimmed().toLower();

   157     if (arg == "connectedclient")

   158         type = ClientServer::ConnectedClient;

   159     else if (arg == "unconnectedclient")

   160         type = ClientServer::UnconnectedClient;

   161     else if (arg == "server")

   162         type = ClientServer::Server;

   163 

   164     ClientServer clientServer(type, app.arguments().at(2),

   165                               app.arguments().at(3).toInt());

   166 

   167     return app.exec();

   168 }

   169 

   170 #include "main.moc"