Long live Qt 4.5!

1 files changed, 437 insertions, 0 deletions

diff --git a/src/network/socket/qlocalsocket_tcp.cpp b/src/network/socket/qlocalsocket_tcp.cpp
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+++ b/src/network/socket/qlocalsocket_tcp.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtNetwork module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qlocalsocket.h"
+#include "qlocalsocket_p.h"
+#include "qlocalserver.h"
+
+#include <qhostaddress.h>
+#include <qsettings.h>
+#include <qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+QLocalSocketPrivate::QLocalSocketPrivate() : QIODevicePrivate(),
+        tcpSocket(0),
+        ownsTcpSocket(true),
+        state(QLocalSocket::UnconnectedState)
+{
+}
+
+void QLocalSocketPrivate::init()
+{
+    setSocket(new QLocalUnixSocket);
+}
+
+void QLocalSocketPrivate::setSocket(QLocalUnixSocket* socket)
+{
+    if (ownsTcpSocket)
+        delete tcpSocket;
+    ownsTcpSocket = false;
+    tcpSocket = socket;
+
+    Q_Q(QLocalSocket);
+    // QIODevice signals
+    q->connect(tcpSocket, SIGNAL(aboutToClose()), q, SIGNAL(aboutToClose()));
+    q->connect(tcpSocket, SIGNAL(bytesWritten(qint64)),
+               q, SIGNAL(bytesWritten(qint64)));
+    q->connect(tcpSocket, SIGNAL(readyRead()), q, SIGNAL(readyRead()));
+    // QAbstractSocket signals
+    q->connect(tcpSocket, SIGNAL(connected()), q, SIGNAL(connected()));
+    q->connect(tcpSocket, SIGNAL(disconnected()), q, SIGNAL(disconnected()));
+    q->connect(tcpSocket, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
+               q, SLOT(_q_stateChanged(QAbstractSocket::SocketState)));
+    q->connect(tcpSocket, SIGNAL(error(QAbstractSocket::SocketError)),
+               q, SLOT(_q_error(QAbstractSocket::SocketError)));
+    q->connect(tcpSocket, SIGNAL(readChannelFinished()), q, SIGNAL(readChannelFinished()));
+    tcpSocket->setParent(q);
+}
+
+void QLocalSocketPrivate::_q_error(QAbstractSocket::SocketError socketError)
+{
+    Q_Q(QLocalSocket);
+    QString function = QLatin1String("QLocalSocket");
+    QLocalSocket::LocalSocketError error = (QLocalSocket::LocalSocketError)socketError;
+    QString errorString = generateErrorString(error, function);
+    q->setErrorString(errorString);
+    emit q->error(error);
+}
+
+void QLocalSocketPrivate::_q_stateChanged(QAbstractSocket::SocketState newState)
+{
+    Q_Q(QLocalSocket);
+    QLocalSocket::LocalSocketState currentState = state;
+    switch(newState) {
+    case QAbstractSocket::UnconnectedState:
+        state = QLocalSocket::UnconnectedState;
+        serverName = QString();
+        fullServerName = QString();
+        break;
+    case QAbstractSocket::ConnectingState:
+        state = QLocalSocket::ConnectingState;
+        break;
+    case QAbstractSocket::ConnectedState:
+        state = QLocalSocket::ConnectedState;
+        break;
+    case QAbstractSocket::ClosingState:
+        state = QLocalSocket::ClosingState;
+        break;
+    default:
+#if defined QLOCALSOCKET_DEBUG
+        qWarning() << "QLocalSocket::Unhandled socket state change:" << newState;
+#endif
+        return;
+    }
+    if (currentState != state)
+        emit q->stateChanged(state);
+}
+
+QString QLocalSocketPrivate::generateErrorString(QLocalSocket::LocalSocketError error, const QString &function) const
+{
+    QString errorString;
+    switch (error) {
+    case QLocalSocket::ConnectionRefusedError:
+        errorString = QLocalSocket::tr("%1: Connection refused").arg(function);
+        break;
+    case QLocalSocket::PeerClosedError:
+        errorString = QLocalSocket::tr("%1: Remote closed").arg(function);
+        break;
+    case QLocalSocket::ServerNotFoundError:
+        errorString = QLocalSocket::tr("%1: Invalid name").arg(function);
+        break;
+    case QLocalSocket::SocketAccessError:
+        errorString = QLocalSocket::tr("%1: Socket access error").arg(function);
+        break;
+    case QLocalSocket::SocketResourceError:
+        errorString = QLocalSocket::tr("%1: Socket resource error").arg(function);
+        break;
+    case QLocalSocket::SocketTimeoutError:
+        errorString = QLocalSocket::tr("%1: Socket operation timed out").arg(function);
+        break;
+    case QLocalSocket::DatagramTooLargeError:
+        errorString = QLocalSocket::tr("%1: Datagram too large").arg(function);
+        break;
+    case QLocalSocket::ConnectionError:
+        errorString = QLocalSocket::tr("%1: Connection error").arg(function);
+        break;
+    case QLocalSocket::UnsupportedSocketOperationError:
+        errorString = QLocalSocket::tr("%1: The socket operation is not supported").arg(function);
+        break;
+    case QLocalSocket::UnknownSocketError:
+    default:
+        errorString = QLocalSocket::tr("%1: Unknown error").arg(function);
+    }
+    return errorString;
+}
+
+void QLocalSocketPrivate::errorOccurred(QLocalSocket::LocalSocketError error, const QString &function)
+{
+    Q_Q(QLocalSocket);
+    switch (error) {
+    case QLocalSocket::ConnectionRefusedError:
+        tcpSocket->setSocketError(QAbstractSocket::ConnectionRefusedError);
+        break;
+    case QLocalSocket::PeerClosedError:
+        tcpSocket->setSocketError(QAbstractSocket::RemoteHostClosedError);
+        break;
+    case QLocalSocket::ServerNotFoundError:
+        tcpSocket->setSocketError(QAbstractSocket::HostNotFoundError);
+        break;
+    case QLocalSocket::SocketAccessError:
+        tcpSocket->setSocketError(QAbstractSocket::SocketAccessError);
+        break;
+    case QLocalSocket::SocketResourceError:
+        tcpSocket->setSocketError(QAbstractSocket::SocketResourceError);
+        break;
+    case QLocalSocket::SocketTimeoutError:
+        tcpSocket->setSocketError(QAbstractSocket::SocketTimeoutError);
+        break;
+    case QLocalSocket::DatagramTooLargeError:
+        tcpSocket->setSocketError(QAbstractSocket::DatagramTooLargeError);
+        break;
+    case QLocalSocket::ConnectionError:
+        tcpSocket->setSocketError(QAbstractSocket::NetworkError);
+        break;
+    case QLocalSocket::UnsupportedSocketOperationError:
+        tcpSocket->setSocketError(QAbstractSocket::UnsupportedSocketOperationError);
+        break;
+    case QLocalSocket::UnknownSocketError:
+    default:
+        tcpSocket->setSocketError(QAbstractSocket::UnknownSocketError);
+    }
+
+    QString errorString = generateErrorString(error, function);
+    q->setErrorString(errorString);
+    emit q->error(error);
+
+    // errors cause a disconnect
+    tcpSocket->setSocketState(QAbstractSocket::UnconnectedState);
+    bool stateChanged = (state != QLocalSocket::UnconnectedState);
+    state = QLocalSocket::UnconnectedState;
+    q->close();
+    if (stateChanged)
+        q->emit stateChanged(state);
+}
+
+void QLocalSocket::connectToServer(const QString &name, OpenMode openMode)
+{
+    Q_D(QLocalSocket);
+    if (state() == ConnectedState
+        || state() == ConnectingState)
+        return;
+
+    d->errorString = QString();
+    d->state = ConnectingState;
+    emit stateChanged(d->state);
+
+    if (name.isEmpty()) {
+        d->errorOccurred(ServerNotFoundError,
+                         QLatin1String("QLocalSocket::connectToServer"));
+        return;
+    }
+
+    d->serverName = name;
+    const QLatin1String prefix("QLocalServer/");
+    if (name.startsWith(prefix))
+        d->fullServerName = name;
+    else
+        d->fullServerName = prefix + name;
+
+    QSettings settings(QLatin1String("Trolltech"), QLatin1String("Qt"));
+    bool ok;
+    const quint16 port = settings.value(d->fullServerName).toUInt(&ok);
+    if (!ok) {
+        d->errorOccurred(ServerNotFoundError,
+                         QLatin1String("QLocalSocket::connectToServer"));
+        return;
+    }
+    d->tcpSocket->connectToHost(QHostAddress::LocalHost, port, openMode);
+    QIODevice::open(openMode);
+}
+
+bool QLocalSocket::setSocketDescriptor(quintptr socketDescriptor,
+        LocalSocketState socketState, OpenMode openMode)
+{
+    Q_D(QLocalSocket);
+    QAbstractSocket::SocketState newSocketState = QAbstractSocket::UnconnectedState;
+    switch (socketState) {
+    case ConnectingState:
+        newSocketState = QAbstractSocket::ConnectingState;
+        break;
+    case ConnectedState:
+        newSocketState = QAbstractSocket::ConnectedState;
+        break;
+    case ClosingState:
+        newSocketState = QAbstractSocket::ClosingState;
+        break;
+    case UnconnectedState:
+        newSocketState = QAbstractSocket::UnconnectedState;
+        break;
+    }
+    QIODevice::open(openMode);
+    d->state = socketState;
+
+    // Is our parent a localServer? Then it wants us to use its remote socket.
+    QLocalServer* localServer = qobject_cast<QLocalServer*>( parent() );
+    if (localServer) {
+        foreach (QObject* child, localServer->children()) {
+            QTcpSocket* childTcpSocket = qobject_cast<QTcpSocket*>(child);
+            if (childTcpSocket && childTcpSocket->socketDescriptor() == socketDescriptor) {
+                d->setSocket( static_cast<QLocalUnixSocket*>(childTcpSocket) );
+                return true;
+            }
+        }
+    }
+
+    // We couldn't find the socket in the children list of our server.
+    // So it might be that the user wants to set a socket descriptor.
+    return d->tcpSocket->setSocketDescriptor(socketDescriptor,
+                                             newSocketState, openMode);
+}
+
+quintptr QLocalSocket::socketDescriptor() const
+{
+    Q_D(const QLocalSocket);
+    return d->tcpSocket->socketDescriptor();
+}
+
+qint64 QLocalSocket::readData(char *data, qint64 c)
+{
+    Q_D(QLocalSocket);
+    return d->tcpSocket->readData(data, c);
+}
+
+qint64 QLocalSocket::writeData(const char *data, qint64 c)
+{
+    Q_D(QLocalSocket);
+    return d->tcpSocket->writeData(data, c);
+}
+
+void QLocalSocket::abort()
+{
+    Q_D(QLocalSocket);
+    d->tcpSocket->abort();
+}
+
+qint64 QLocalSocket::bytesAvailable() const
+{
+    Q_D(const QLocalSocket);
+    return QIODevice::bytesAvailable() + d->tcpSocket->bytesAvailable();
+}
+
+qint64 QLocalSocket::bytesToWrite() const
+{
+    Q_D(const QLocalSocket);
+    return d->tcpSocket->bytesToWrite();
+}
+
+bool QLocalSocket::canReadLine() const
+{
+    Q_D(const QLocalSocket);
+    return QIODevice::canReadLine() || d->tcpSocket->canReadLine();
+}
+
+void QLocalSocket::close()
+{
+    Q_D(QLocalSocket);
+    d->tcpSocket->close();
+    d->serverName = QString();
+    d->fullServerName = QString();
+    QIODevice::close();
+}
+
+bool QLocalSocket::waitForBytesWritten(int msecs)
+{
+    Q_D(QLocalSocket);
+    return d->tcpSocket->waitForBytesWritten(msecs);
+}
+
+bool QLocalSocket::flush()
+{
+    Q_D(QLocalSocket);
+    return d->tcpSocket->flush();
+}
+
+void QLocalSocket::disconnectFromServer()
+{
+    Q_D(QLocalSocket);
+    d->tcpSocket->disconnectFromHost();
+}
+
+QLocalSocket::LocalSocketError QLocalSocket::error() const
+{
+    Q_D(const QLocalSocket);
+    switch (d->tcpSocket->error()) {
+    case QAbstractSocket::ConnectionRefusedError:
+        return QLocalSocket::ConnectionRefusedError;
+    case QAbstractSocket::RemoteHostClosedError:
+        return QLocalSocket::PeerClosedError;
+    case QAbstractSocket::HostNotFoundError:
+        return QLocalSocket::ServerNotFoundError;
+    case QAbstractSocket::SocketAccessError:
+        return QLocalSocket::SocketAccessError;
+    case QAbstractSocket::SocketResourceError:
+        return QLocalSocket::SocketResourceError;
+    case QAbstractSocket::SocketTimeoutError:
+        return QLocalSocket::SocketTimeoutError;
+    case QAbstractSocket::DatagramTooLargeError:
+        return QLocalSocket::DatagramTooLargeError;
+    case QAbstractSocket::NetworkError:
+        return QLocalSocket::ConnectionError;
+    case QAbstractSocket::UnsupportedSocketOperationError:
+        return QLocalSocket::UnsupportedSocketOperationError;
+    case QAbstractSocket::UnknownSocketError:
+        return QLocalSocket::UnknownSocketError;
+    default:
+#if defined QLOCALSOCKET_DEBUG
+        qWarning() << "QLocalSocket error not handled:" << d->tcpSocket->error();
+#endif
+        break;
+    }
+    return UnknownSocketError;
+}
+
+bool QLocalSocket::isValid() const
+{
+    Q_D(const QLocalSocket);
+    return d->tcpSocket->isValid();
+}
+
+qint64 QLocalSocket::readBufferSize() const
+{
+    Q_D(const QLocalSocket);
+    return d->tcpSocket->readBufferSize();
+}
+
+void QLocalSocket::setReadBufferSize(qint64 size)
+{
+    Q_D(QLocalSocket);
+    d->tcpSocket->setReadBufferSize(size);
+}
+
+bool QLocalSocket::waitForConnected(int msec)
+{
+    Q_D(QLocalSocket);
+    if (state() != ConnectingState)
+        return (state() == ConnectedState);
+
+    return d->tcpSocket->waitForConnected(msec);
+}
+
+bool QLocalSocket::waitForDisconnected(int msecs)
+{
+    Q_D(QLocalSocket);
+    if (state() == UnconnectedState) {
+        qWarning() << "QLocalSocket::waitForDisconnected() is not allowed in UnconnectedState";
+        return false;
+    }
+    return (d->tcpSocket->waitForDisconnected(msecs));
+}
+
+bool QLocalSocket::waitForReadyRead(int msecs)
+{
+    Q_D(QLocalSocket);
+    if (state() == QLocalSocket::UnconnectedState)
+        return false;
+    return (d->tcpSocket->waitForReadyRead(msecs));
+}
+
+QT_END_NAMESPACE