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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 581 insertions, 0 deletions

diff --git a/src/network/socket/qlocalsocket_unix.cpp b/src/network/socket/qlocalsocket_unix.cpp
new file mode 100644
index 0000000000..da85d917e4
--- /dev/null
+++ b/src/network/socket/qlocalsocket_unix.cpp
@@ -0,0 +1,581 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qlocalsocket.h"
+#include "qlocalsocket_p.h"
+#include "qnet_unix_p.h"
+
+#ifndef QT_NO_LOCALSOCKET
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include <qdir.h>
+#include <qdebug.h>
+#include <qelapsedtimer.h>
+
+#ifdef Q_OS_VXWORKS
+#  include <selectLib.h>
+#endif
+
+#define QT_CONNECT_TIMEOUT 30000
+
+QT_BEGIN_NAMESPACE
+
+QLocalSocketPrivate::QLocalSocketPrivate() : QIODevicePrivate(),
+        delayConnect(0),
+        connectTimer(0),
+        connectingSocket(-1),
+        connectingOpenMode(0),
+        state(QLocalSocket::UnconnectedState)
+{
+}
+
+void QLocalSocketPrivate::init()
+{
+    Q_Q(QLocalSocket);
+    // QIODevice signals
+    q->connect(&unixSocket, SIGNAL(aboutToClose()), q, SIGNAL(aboutToClose()));
+    q->connect(&unixSocket, SIGNAL(bytesWritten(qint64)),
+               q, SIGNAL(bytesWritten(qint64)));
+    q->connect(&unixSocket, SIGNAL(readyRead()), q, SIGNAL(readyRead()));
+    // QAbstractSocket signals
+    q->connect(&unixSocket, SIGNAL(connected()), q, SIGNAL(connected()));
+    q->connect(&unixSocket, SIGNAL(disconnected()), q, SIGNAL(disconnected()));
+    q->connect(&unixSocket, SIGNAL(stateChanged(QAbstractSocket::SocketState)),
+               q, SLOT(_q_stateChanged(QAbstractSocket::SocketState)));
+    q->connect(&unixSocket, SIGNAL(error(QAbstractSocket::SocketError)),
+               q, SLOT(_q_error(QAbstractSocket::SocketError)));
+    q->connect(&unixSocket, SIGNAL(readChannelFinished()), q, SIGNAL(readChannelFinished()));
+    unixSocket.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.clear();
+        fullServerName.clear();
+        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 %2").arg(function).arg(errno);
+    }
+    return errorString;
+}
+
+void QLocalSocketPrivate::errorOccurred(QLocalSocket::LocalSocketError error, const QString &function)
+{
+    Q_Q(QLocalSocket);
+    switch (error) {
+    case QLocalSocket::ConnectionRefusedError:
+        unixSocket.setSocketError(QAbstractSocket::ConnectionRefusedError);
+        break;
+    case QLocalSocket::PeerClosedError:
+        unixSocket.setSocketError(QAbstractSocket::RemoteHostClosedError);
+        break;
+    case QLocalSocket::ServerNotFoundError:
+        unixSocket.setSocketError(QAbstractSocket::HostNotFoundError);
+        break;
+    case QLocalSocket::SocketAccessError:
+        unixSocket.setSocketError(QAbstractSocket::SocketAccessError);
+        break;
+    case QLocalSocket::SocketResourceError:
+        unixSocket.setSocketError(QAbstractSocket::SocketResourceError);
+        break;
+    case QLocalSocket::SocketTimeoutError:
+        unixSocket.setSocketError(QAbstractSocket::SocketTimeoutError);
+        break;
+    case QLocalSocket::DatagramTooLargeError:
+        unixSocket.setSocketError(QAbstractSocket::DatagramTooLargeError);
+        break;
+    case QLocalSocket::ConnectionError:
+        unixSocket.setSocketError(QAbstractSocket::NetworkError);
+        break;
+    case QLocalSocket::UnsupportedSocketOperationError:
+        unixSocket.setSocketError(QAbstractSocket::UnsupportedSocketOperationError);
+        break;
+    case QLocalSocket::UnknownSocketError:
+    default:
+        unixSocket.setSocketError(QAbstractSocket::UnknownSocketError);
+    }
+
+    QString errorString = generateErrorString(error, function);
+    q->setErrorString(errorString);
+    emit q->error(error);
+
+    // errors cause a disconnect
+    unixSocket.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.clear();
+    d->unixSocket.setSocketState(QAbstractSocket::ConnectingState);
+    d->state = ConnectingState;
+    emit stateChanged(d->state);
+
+    if (name.isEmpty()) {
+        d->errorOccurred(ServerNotFoundError,
+                QLatin1String("QLocalSocket::connectToServer"));
+        return;
+    }
+
+    // create the socket
+    if (-1 == (d->connectingSocket = qt_safe_socket(PF_UNIX, SOCK_STREAM, 0))) {
+        d->errorOccurred(UnsupportedSocketOperationError,
+                        QLatin1String("QLocalSocket::connectToServer"));
+        return;
+    }
+#ifndef Q_OS_SYMBIAN
+    // set non blocking so we can try to connect and it wont wait
+    int flags = fcntl(d->connectingSocket, F_GETFL, 0);
+    if (-1 == flags
+        || -1 == (fcntl(d->connectingSocket, F_SETFL, flags | O_NONBLOCK))) {
+        d->errorOccurred(UnknownSocketError,
+                QLatin1String("QLocalSocket::connectToServer"));
+        return;
+    }
+#endif
+
+    // _q_connectToSocket does the actual connecting
+    d->connectingName = name;
+    d->connectingOpenMode = openMode;
+    d->_q_connectToSocket();
+}
+
+/*!
+    \internal
+
+    Tries to connect connectingName and connectingOpenMode
+
+    \sa connectToServer() waitForConnected()
+  */
+void QLocalSocketPrivate::_q_connectToSocket()
+{
+    Q_Q(QLocalSocket);
+    QString connectingPathName;
+
+    // determine the full server path
+    if (connectingName.startsWith(QLatin1Char('/'))) {
+        connectingPathName = connectingName;
+    } else {
+        connectingPathName = QDir::tempPath();
+        connectingPathName += QLatin1Char('/') + connectingName;
+    }
+
+    struct sockaddr_un name;
+    name.sun_family = PF_UNIX;
+    if (sizeof(name.sun_path) < (uint)connectingPathName.toLatin1().size() + 1) {
+        QString function = QLatin1String("QLocalSocket::connectToServer");
+        errorOccurred(QLocalSocket::ServerNotFoundError, function);
+        return;
+    }
+    ::memcpy(name.sun_path, connectingPathName.toLatin1().data(),
+             connectingPathName.toLatin1().size() + 1);
+    if (-1 == qt_safe_connect(connectingSocket, (struct sockaddr *)&name, sizeof(name))) {
+        QString function = QLatin1String("QLocalSocket::connectToServer");
+        switch (errno)
+        {
+        case EINVAL:
+        case ECONNREFUSED:
+            errorOccurred(QLocalSocket::ConnectionRefusedError, function);
+            break;
+        case ENOENT:
+            errorOccurred(QLocalSocket::ServerNotFoundError, function);
+            break;
+        case EACCES:
+        case EPERM:
+            errorOccurred(QLocalSocket::SocketAccessError, function);
+            break;
+        case ETIMEDOUT:
+            errorOccurred(QLocalSocket::SocketTimeoutError, function);
+            break;
+        case EAGAIN:
+            // Try again later, all of the sockets listening are full
+            if (!delayConnect) {
+                delayConnect = new QSocketNotifier(connectingSocket, QSocketNotifier::Write, q);
+                q->connect(delayConnect, SIGNAL(activated(int)), q, SLOT(_q_connectToSocket()));
+            }
+            if (!connectTimer) {
+                connectTimer = new QTimer(q);
+                q->connect(connectTimer, SIGNAL(timeout()),
+                                 q, SLOT(_q_abortConnectionAttempt()),
+                                 Qt::DirectConnection);
+                connectTimer->start(QT_CONNECT_TIMEOUT);
+            }
+            delayConnect->setEnabled(true);
+            break;
+        default:
+            errorOccurred(QLocalSocket::UnknownSocketError, function);
+        }
+        return;
+    }
+
+    // connected!
+    cancelDelayedConnect();
+
+    serverName = connectingName;
+    fullServerName = connectingPathName;
+    if (unixSocket.setSocketDescriptor(connectingSocket,
+        QAbstractSocket::ConnectedState, connectingOpenMode)) {
+        q->QIODevice::open(connectingOpenMode);
+        q->emit connected();
+    } else {
+        QString function = QLatin1String("QLocalSocket::connectToServer");
+        errorOccurred(QLocalSocket::UnknownSocketError, function);
+    }
+    connectingSocket = -1;
+    connectingName.clear();
+    connectingOpenMode = 0;
+}
+
+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;
+    return d->unixSocket.setSocketDescriptor(socketDescriptor,
+                                             newSocketState, openMode);
+}
+
+void QLocalSocketPrivate::_q_abortConnectionAttempt()
+{
+    Q_Q(QLocalSocket);
+    q->close();
+}
+
+void QLocalSocketPrivate::cancelDelayedConnect()
+{
+    if (delayConnect) {
+        delayConnect->setEnabled(false);
+        delete delayConnect;
+        delayConnect = 0;
+        connectTimer->stop();
+        delete connectTimer;
+        connectTimer = 0;
+    }
+}
+
+quintptr QLocalSocket::socketDescriptor() const
+{
+    Q_D(const QLocalSocket);
+    return d->unixSocket.socketDescriptor();
+}
+
+qint64 QLocalSocket::readData(char *data, qint64 c)
+{
+    Q_D(QLocalSocket);
+    return d->unixSocket.readData(data, c);
+}
+
+qint64 QLocalSocket::writeData(const char *data, qint64 c)
+{
+    Q_D(QLocalSocket);
+    return d->unixSocket.writeData(data, c);
+}
+
+void QLocalSocket::abort()
+{
+    Q_D(QLocalSocket);
+    d->unixSocket.abort();
+}
+
+qint64 QLocalSocket::bytesAvailable() const
+{
+    Q_D(const QLocalSocket);
+    return QIODevice::bytesAvailable() + d->unixSocket.bytesAvailable();
+}
+
+qint64 QLocalSocket::bytesToWrite() const
+{
+    Q_D(const QLocalSocket);
+    return d->unixSocket.bytesToWrite();
+}
+
+bool QLocalSocket::canReadLine() const
+{
+    Q_D(const QLocalSocket);
+    return QIODevice::canReadLine() || d->unixSocket.canReadLine();
+}
+
+void QLocalSocket::close()
+{
+    Q_D(QLocalSocket);
+    d->unixSocket.close();
+    d->cancelDelayedConnect();
+    if (d->connectingSocket != -1)
+        ::close(d->connectingSocket);
+    d->connectingSocket = -1;
+    d->connectingName.clear();
+    d->connectingOpenMode = 0;
+    d->serverName.clear();
+    d->fullServerName.clear();
+    QIODevice::close();
+}
+
+bool QLocalSocket::waitForBytesWritten(int msecs)
+{
+    Q_D(QLocalSocket);
+    return d->unixSocket.waitForBytesWritten(msecs);
+}
+
+bool QLocalSocket::flush()
+{
+    Q_D(QLocalSocket);
+    return d->unixSocket.flush();
+}
+
+void QLocalSocket::disconnectFromServer()
+{
+    Q_D(QLocalSocket);
+    d->unixSocket.disconnectFromHost();
+}
+
+QLocalSocket::LocalSocketError QLocalSocket::error() const
+{
+    Q_D(const QLocalSocket);
+    switch (d->unixSocket.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->unixSocket.error();
+#endif
+        break;
+    }
+    return UnknownSocketError;
+}
+
+bool QLocalSocket::isValid() const
+{
+    Q_D(const QLocalSocket);
+    return d->unixSocket.isValid();
+}
+
+qint64 QLocalSocket::readBufferSize() const
+{
+    Q_D(const QLocalSocket);
+    return d->unixSocket.readBufferSize();
+}
+
+void QLocalSocket::setReadBufferSize(qint64 size)
+{
+    Q_D(QLocalSocket);
+    d->unixSocket.setReadBufferSize(size);
+}
+
+bool QLocalSocket::waitForConnected(int msec)
+{
+    Q_D(QLocalSocket);
+    if (state() != ConnectingState)
+        return (state() == ConnectedState);
+
+    fd_set fds;
+    FD_ZERO(&fds);
+    FD_SET(d->connectingSocket, &fds);
+
+    timeval timeout;
+    timeout.tv_sec = msec / 1000;
+    timeout.tv_usec = (msec % 1000) * 1000;
+
+    // timeout can not be 0 or else select will return an error.
+    if (0 == msec)
+        timeout.tv_usec = 1000;
+
+    int result = -1;
+    // on Linux timeout will be updated by select, but _not_ on other systems.
+    QElapsedTimer timer;
+    timer.start();
+    while (state() == ConnectingState
+           && (-1 == msec || timer.elapsed() < msec)) {
+#ifdef Q_OS_SYMBIAN
+        // On Symbian, ready-to-write is signaled when non-blocking socket
+        // connect is finised. Is ready-to-read really used on other
+        // UNIX paltforms when using non-blocking AF_UNIX socket?
+        result = ::select(d->connectingSocket + 1, 0, &fds, 0, &timeout);
+#else
+        result = ::select(d->connectingSocket + 1, &fds, 0, 0, &timeout);
+#endif
+        if (-1 == result && errno != EINTR) {
+            d->errorOccurred( QLocalSocket::UnknownSocketError,
+                    QLatin1String("QLocalSocket::waitForConnected"));
+            break;
+        }
+        if (result > 0)
+            d->_q_connectToSocket();
+    }
+
+    return (state() == ConnectedState);
+}
+
+bool QLocalSocket::waitForDisconnected(int msecs)
+{
+    Q_D(QLocalSocket);
+    if (state() == UnconnectedState) {
+        qWarning() << "QLocalSocket::waitForDisconnected() is not allowed in UnconnectedState";
+        return false;
+    }
+    return (d->unixSocket.waitForDisconnected(msecs));
+}
+
+bool QLocalSocket::waitForReadyRead(int msecs)
+{
+    Q_D(QLocalSocket);
+    if (state() == QLocalSocket::UnconnectedState)
+        return false;
+    return (d->unixSocket.waitForReadyRead(msecs));
+}
+
+QT_END_NAMESPACE
+
+#endif