util/src/network/socket/qlocalserver_tcp.cpp
author eckhart.koppen@nokia.com
Wed, 31 Mar 2010 11:06:36 +0300
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the QtNetwork module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** No Commercial Usage
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** This file contains pre-release code and may not be distributed.
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** You may use this file in accordance with the terms and conditions
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** contained in the Technology Preview License Agreement accompanying
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** this package.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file.  Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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**
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**
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qlocalserver.h"
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#include "qlocalserver_p.h"
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#include "qlocalsocket.h"
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#include "qlocalsocket_p.h"
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#include <qhostaddress.h>
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#include <qsettings.h>
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#include <qdebug.h>
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QT_BEGIN_NAMESPACE
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void QLocalServerPrivate::init()
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{
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    Q_Q(QLocalServer);
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    q->connect(&tcpServer, SIGNAL(newConnection()), SLOT(_q_onNewConnection()));
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}
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bool QLocalServerPrivate::listen(const QString &requestedServerName)
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{
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    if (!tcpServer.listen(QHostAddress::LocalHost))
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        return false;
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    const QLatin1String prefix("QLocalServer/");
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    if (requestedServerName.startsWith(prefix))
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        fullServerName = requestedServerName;
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    else
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        fullServerName = prefix + requestedServerName;
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    QSettings settings(QLatin1String("Trolltech"), QLatin1String("Qt"));
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    if (settings.contains(fullServerName)) {
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        qWarning("QLocalServer::listen: server name is already in use.");
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        tcpServer.close();
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        return false;
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    }
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    settings.setValue(fullServerName, tcpServer.serverPort());
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    return true;
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}
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void QLocalServerPrivate::closeServer()
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{
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    QSettings settings(QLatin1String("Trolltech"), QLatin1String("Qt"));
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    if (fullServerName == QLatin1String("QLocalServer"))
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        settings.setValue(fullServerName, QVariant());
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    else
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        settings.remove(fullServerName);
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    tcpServer.close();
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}
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void QLocalServerPrivate::waitForNewConnection(int msec, bool *timedOut)
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{
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    if (pendingConnections.isEmpty())
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        tcpServer.waitForNewConnection(msec, timedOut);
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    else if (timedOut)
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        *timedOut = false;
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}
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void QLocalServerPrivate::_q_onNewConnection()
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{
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    Q_Q(QLocalServer);
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    QTcpSocket* tcpSocket = tcpServer.nextPendingConnection();
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    if (!tcpSocket) {
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        qWarning("QLocalServer: no pending connection");
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        return;
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    }
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    tcpSocket->setParent(q);
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    const quintptr socketDescriptor = tcpSocket->socketDescriptor();
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    q->incomingConnection(socketDescriptor);
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}
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bool QLocalServerPrivate::removeServer(const QString &name)
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{
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    const QLatin1String prefix("QLocalServer/");
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    QString serverName;
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    if (name.startsWith(prefix))
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        serverName = name;
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    else
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        serverName = prefix + name;
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   121
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    QSettings settings(QLatin1String("Trolltech"), QLatin1String("Qt"));
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    if (settings.contains(serverName))
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        settings.remove(serverName);
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   125
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    return true;
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}
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   128
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   129
QT_END_NAMESPACE