Merge branch '4.8-upstream'

14 files changed, 868 insertions, 164 deletions

diff --git a/src/plugins/bearer/symbian/qnetworksession_impl.cpp b/src/plugins/bearer/symbian/qnetworksession_impl.cpp
index 741f8c5..a9bd414 100644
--- a/src/plugins/bearer/symbian/qnetworksession_impl.cpp
+++ b/src/plugins/bearer/symbian/qnetworksession_impl.cpp
@@ -45,8 +45,7 @@
 #include <es_enum.h>
 #include <es_sock.h>
 #include <in_sock.h>
-#include <stdapis/sys/socket.h>
-#include <stdapis/net/if.h>
+#include <private/qcore_symbian_p.h>
 
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE
 #include <cmmanager.h>
@@ -61,65 +60,60 @@
 QT_BEGIN_NAMESPACE
 
 QNetworkSessionPrivateImpl::QNetworkSessionPrivateImpl(SymbianEngine *engine)
-:   CActive(CActive::EPriorityUserInput), engine(engine),
-    iDynamicUnSetdefaultif(0), ipConnectionNotifier(0),
+:   engine(engine), iSocketServ(qt_symbianGetSocketServer()),
+    ipConnectionNotifier(0), ipConnectionStarter(0),
     iHandleStateNotificationsFromManager(false), iFirstSync(true), iStoppedByUser(false),
     iClosedByUser(false), iError(QNetworkSession::UnknownSessionError), iALREnabled(0),
     iConnectInBackground(false), isOpening(false)
 {
-    CActiveScheduler::Add(this);
 
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE
     iMobility = NULL;
 #endif
-    // Try to load "Open C" dll dynamically and
-    // try to attach to unsetdefaultif function dynamically.
-    // This is to avoid build breaks with old OpenC versions.
-    if (iOpenCLibrary.Load(_L("libc")) == KErrNone) {
-        iDynamicUnSetdefaultif = (TOpenCUnSetdefaultifFunction)iOpenCLibrary.Lookup(597);
-    }
-#ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
-    qDebug() << "QNS this : " << QString::number((uint)this) << " - ";
-    if (iDynamicUnSetdefaultif)
-        qDebug() << "dynamic unsetdefaultif() is present in PIPS library. ";
-    else
-        qDebug() << "dynamic unsetdefaultif() not present in PIPS library. ";
-#endif
 
     TRAP_IGNORE(iConnectionMonitor.ConnectL());
 }
 
-QNetworkSessionPrivateImpl::~QNetworkSessionPrivateImpl()
+void QNetworkSessionPrivateImpl::closeHandles()
 {
-    isOpen = false;
-    isOpening = false;
-
+    QMutexLocker lock(&mutex);
     // Cancel Connection Progress Notifications first.
-    // Note: ConnectionNotifier must be destroyed before Canceling RConnection::Start()
+    // Note: ConnectionNotifier must be destroyed before RConnection::Close()
     //       => deleting ipConnectionNotifier results RConnection::CancelProgressNotification()
     delete ipConnectionNotifier;
     ipConnectionNotifier = NULL;
 
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE
-    if (iMobility) {
-        delete iMobility;
-        iMobility = NULL;
-    }
+    // mobility monitor must be deleted before RConnection is closed
+    delete iMobility;
+    iMobility = NULL;
 #endif
 
-    // Cancel possible RConnection::Start()
-    Cancel();
-    iSocketServ.Close();
+    // Cancel possible RConnection::Start() - may call RConnection::Close if Start was in progress
+    delete ipConnectionStarter;
+    ipConnectionStarter = 0;
+    //close any open connection (note Close twice is safe in case Cancel did it above)
+    iConnection.Close();
 
-    // Close global 'Open C' RConnection
-    // Clears also possible unsetdefaultif() flags.
-    setdefaultif(0);
+    QSymbianSocketManager::instance().setDefaultConnection(0);
 
     iConnectionMonitor.Close();
-    iOpenCLibrary.Close();
 #ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
     qDebug() << "QNS this : " << QString::number((uint)this)
-             << " - destroyed (and setdefaultif(0))";
+             << " - handles closed";
+#endif
+
+}
+
+QNetworkSessionPrivateImpl::~QNetworkSessionPrivateImpl()
+{
+    isOpen = false;
+    isOpening = false;
+
+    closeHandles();
+#ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
+    qDebug() << "QNS this : " << QString::number((uint)this)
+             << " - destroyed";
 #endif
 }
 
@@ -166,7 +160,7 @@ void QNetworkSessionPrivateImpl::configurationAdded(QNetworkConfigurationPrivate
 #ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
         qDebug() << "QNS this : " << QString::number((uint)this) << " - "
                  << "configurationAdded IAP: "
-                 << toSymbianConfig(privateConfiguration(config))->numericIdentifier();
+                 << toSymbianConfig(config)->numericIdentifier();
 #endif
 
         syncStateWithInterface();
@@ -324,6 +318,7 @@ QNetworkSession::SessionError QNetworkSessionPrivateImpl::error() const
 
 void QNetworkSessionPrivateImpl::open()
 {
+    QMutexLocker lock(&mutex);
 #ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
         qDebug() << "QNS this : " << QString::number((uint)this) << " - "
                 << "open() called, session state is: " << state << " and isOpen is: "
@@ -363,20 +358,10 @@ void QNetworkSessionPrivateImpl::open()
     iStoppedByUser = false;
     iClosedByUser = false;
 
-    TInt error = iSocketServ.Connect();
-    if (error != KErrNone) {
-        // Could not open RSocketServ
-        newState(QNetworkSession::Invalid);
-        iError = QNetworkSession::UnknownSessionError;
-        emit QNetworkSessionPrivate::error(iError);
-        syncStateWithInterface();    
-        return;
-    }
-    
-    error = iConnection.Open(iSocketServ);
+    Q_ASSERT(!iConnection.SubSessionHandle());
+    TInt error = iConnection.Open(iSocketServ);
     if (error != KErrNone) {
         // Could not open RConnection
-        iSocketServ.Close();
         newState(QNetworkSession::Invalid);
         iError = QNetworkSession::UnknownSessionError;
         emit QNetworkSessionPrivate::error(iError);
@@ -414,9 +399,9 @@ void QNetworkSessionPrivateImpl::open()
 
             pref.SetIapId(symbianConfig->numericIdentifier());
 #endif
-            iConnection.Start(pref, iStatus);
-            if (!IsActive()) {
-                SetActive();
+            if (!ipConnectionStarter) {
+                ipConnectionStarter = new ConnectionStarter(*this, iConnection);
+                ipConnectionStarter->Start(pref);
             }
             // Avoid flip flop of states if the configuration is already
             // active. IsOpen/opened() will indicate when ready.
@@ -442,9 +427,9 @@ void QNetworkSessionPrivateImpl::open()
 #else
         TConnSnapPref snapPref(symbianConfig->numericIdentifier());
 #endif
-        iConnection.Start(snapPref, iStatus);
-        if (!IsActive()) {
-            SetActive();
+        if (!ipConnectionStarter) {
+            ipConnectionStarter = new ConnectionStarter(*this, iConnection);
+            ipConnectionStarter->Start(snapPref);
         }
         // Avoid flip flop of states if the configuration is already
         // active. IsOpen/opened() will indicate when ready.
@@ -453,9 +438,9 @@ void QNetworkSessionPrivateImpl::open()
         }
     } else if (publicConfig.type() == QNetworkConfiguration::UserChoice) {
         iKnownConfigsBeforeConnectionStart = engine->accessPointConfigurationIdentifiers();
-        iConnection.Start(iStatus);
-        if (!IsActive()) {
-            SetActive();
+        if (!ipConnectionStarter) {
+            ipConnectionStarter = new ConnectionStarter(*this, iConnection);
+            ipConnectionStarter->Start();
         }
         newState(QNetworkSession::Connecting);
     }
@@ -465,9 +450,7 @@ void QNetworkSessionPrivateImpl::open()
         isOpening = false;
         iError = QNetworkSession::UnknownSessionError;
         emit QNetworkSessionPrivate::error(iError);
-        if (ipConnectionNotifier) {
-            ipConnectionNotifier->StopNotifications();
-        }
+        closeHandles();
         syncStateWithInterface();    
     }
 }
@@ -519,31 +502,10 @@ void QNetworkSessionPrivateImpl::close(bool allowSignals)
 
     serviceConfig = QNetworkConfiguration();
     
-#ifdef SNAP_FUNCTIONALITY_AVAILABLE
-    if (iMobility) {
-        delete iMobility;
-        iMobility = NULL;
-    }
-#endif
+    closeHandles();
 
-    if (ipConnectionNotifier && !iHandleStateNotificationsFromManager) {
-        ipConnectionNotifier->StopNotifications();
-        // Start handling IAP state change signals from QNetworkConfigurationManagerPrivate
-        iHandleStateNotificationsFromManager = true;
-    }
-    
-    Cancel(); // closes iConnection
-    iSocketServ.Close();
-
-    // Close global 'Open C' RConnection. If OpenC supports,
-    // close the defaultif for good to avoid difficult timing
-    // and bouncing issues of network going immediately back up
-    //  because of e.g. select() thread etc.
-    if (iDynamicUnSetdefaultif) {
-        iDynamicUnSetdefaultif();
-    } else {
-        setdefaultif(0);
-    }
+    // Start handling IAP state change signals from QNetworkConfigurationManagerPrivate
+    iHandleStateNotificationsFromManager = true;
 
     // If UserChoice, go down immediately. If some other configuration,
     // go down immediately if there is no reports expected from the platform;
@@ -566,6 +528,7 @@ void QNetworkSessionPrivateImpl::close(bool allowSignals)
 
 void QNetworkSessionPrivateImpl::stop()
 {
+    QMutexLocker lock(&mutex);
 #ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
     qDebug() << "QNS this : " << QString::number((uint)this) << " - "
             << "stop() called, session state is: " << state << " and isOpen is : "
@@ -639,13 +602,7 @@ void QNetworkSessionPrivateImpl::migrate()
 {
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE
     if (iMobility) {
-        // Close global 'Open C' RConnection. If openC supports, use the 'heavy'
-        // version to block all subsequent requests.
-        if (iDynamicUnSetdefaultif) {
-            iDynamicUnSetdefaultif();
-        } else {
-            setdefaultif(0);
-        }
+        QSymbianSocketManager::instance().setDefaultConnection(0);
         // Start migrating to new IAP
         iMobility->MigrateToPreferredCarrier();
     }
@@ -675,12 +632,7 @@ void QNetworkSessionPrivateImpl::accept()
 
         QNetworkConfiguration newActiveConfig = activeConfiguration(iNewRoamingIap);
 
-        // Use name of the new IAP to open global 'Open C' RConnection
-        QByteArray nameAsByteArray = newActiveConfig.name().toUtf8();
-        ifreq ifr;
-        memset(&ifr, 0, sizeof(struct ifreq));
-        strcpy(ifr.ifr_name, nameAsByteArray.constData());
-        setdefaultif(&ifr);
+        QSymbianSocketManager::instance().setDefaultConnection(&iConnection);
 
         newState(QNetworkSession::Connected, iNewRoamingIap);
     }
@@ -698,12 +650,7 @@ void QNetworkSessionPrivateImpl::reject()
         } else {
             QNetworkConfiguration newActiveConfig = activeConfiguration(iOldRoamingIap);
 
-            // Use name of the old IAP to open global 'Open C' RConnection
-            QByteArray nameAsByteArray = newActiveConfig.name().toUtf8();
-            ifreq ifr;
-            memset(&ifr, 0, sizeof(struct ifreq));
-            strcpy(ifr.ifr_name, nameAsByteArray.constData());
-            setdefaultif(&ifr);
+            QSymbianSocketManager::instance().setDefaultConnection(&iConnection);
 
             newState(QNetworkSession::Connected, iOldRoamingIap);
         }
@@ -756,12 +703,14 @@ void QNetworkSessionPrivateImpl::NewCarrierActive(TAccessPointInfo /*aNewAPInfo*
     }
 }
 
-void QNetworkSessionPrivateImpl::Error(TInt /*aError*/)
+void QNetworkSessionPrivateImpl::Error(TInt aError)
 {
 #ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
     qDebug() << "QNS this : " << QString::number((uint)this) << " - "
-            << "roaming Error() occurred, isOpen is: " << isOpen;
+            << "roaming Error() occurred" << aError << ", isOpen is: " << isOpen;
 #endif
+    if (aError == KErrCancel)
+        return; //avoid recursive deletion
     if (isOpen) {
         isOpen = false;
         isOpening = false;
@@ -769,10 +718,7 @@ void QNetworkSessionPrivateImpl::Error(TInt /*aError*/)
         serviceConfig = QNetworkConfiguration();
         iError = QNetworkSession::RoamingError;
         emit QNetworkSessionPrivate::error(iError);
-        Cancel();
-        if (ipConnectionNotifier) {
-            ipConnectionNotifier->StopNotifications();
-        }
+        closeHandles();
         QT_TRY {
             syncStateWithInterface();
             // In some cases IAP is still in Connected state when
@@ -1064,13 +1010,14 @@ QNetworkConfiguration QNetworkSessionPrivateImpl::activeConfiguration(TUint32 ia
     return publicConfig;
 }
 
-void QNetworkSessionPrivateImpl::RunL()
+void QNetworkSessionPrivateImpl::ConnectionStartComplete(TInt statusCode)
 {
 #ifdef QT_BEARERMGMT_SYMBIAN_DEBUG
     qDebug() << "QNS this : " << QString::number((uint)this) << " - "
-            << "RConnection::RunL with status code: " << iStatus.Int();
+            << "RConnection::Start completed with status code: " << statusCode;
 #endif
-    TInt statusCode = iStatus.Int();
+    delete ipConnectionStarter;
+    ipConnectionStarter = 0;
 
     switch (statusCode) {
         case KErrNone: // Connection created successfully
@@ -1085,30 +1032,20 @@ void QNetworkSessionPrivateImpl::RunL()
                 // Connectivity Test, ICT, failed).
                 error = KErrGeneral;
             } else {
-                // Use name of the IAP to open global 'Open C' RConnection
-                ifreq ifr;
-                memset(&ifr, 0, sizeof(struct ifreq));
-                QByteArray nameAsByteArray = newActiveConfig.name().toUtf8();
-                strcpy(ifr.ifr_name, nameAsByteArray.constData());
-                error = setdefaultif(&ifr);
+                QSymbianSocketManager::instance().setDefaultConnection(&iConnection);
             }
             if (error != KErrNone) {
                 isOpen = false;
                 isOpening = false;
                 iError = QNetworkSession::UnknownSessionError;
                 QT_TRYCATCH_LEAVING(emit QNetworkSessionPrivate::error(iError));
-                if (ipConnectionNotifier) {
-                    ipConnectionNotifier->StopNotifications();
-                }
+                closeHandles();
                 if (!newActiveConfig.isValid()) {
                     // No valid configuration, bail out.
                     // Status updates from QNCM won't be received correctly
                     // because there is no configuration to associate them with so transit here.
-                    iConnection.Close();
                     newState(QNetworkSession::Closing);
                     newState(QNetworkSession::Disconnected);
-                } else {
-                    Cancel();
                 }
                 QT_TRYCATCH_LEAVING(syncStateWithInterface());
                 return;
@@ -1151,10 +1088,7 @@ void QNetworkSessionPrivateImpl::RunL()
             serviceConfig = QNetworkConfiguration();
             iError = QNetworkSession::InvalidConfigurationError;
             QT_TRYCATCH_LEAVING(emit QNetworkSessionPrivate::error(iError));
-            if (ipConnectionNotifier) {
-                ipConnectionNotifier->StopNotifications();
-            }
-            Cancel();
+            closeHandles();
             QT_TRYCATCH_LEAVING(syncStateWithInterface());
             break;
         case KErrCancel: // Connection attempt cancelled
@@ -1173,20 +1107,12 @@ void QNetworkSessionPrivateImpl::RunL()
                 iError = QNetworkSession::UnknownSessionError;
             }
             QT_TRYCATCH_LEAVING(emit QNetworkSessionPrivate::error(iError));
-            if (ipConnectionNotifier) {
-                ipConnectionNotifier->StopNotifications();
-            }
-            Cancel();
+            closeHandles();
             QT_TRYCATCH_LEAVING(syncStateWithInterface());
             break;
     }
 }
 
-void QNetworkSessionPrivateImpl::DoCancel()
-{
-    iConnection.Close();
-}
-
 // Enters newState if feasible according to current state.
 // AccessPointId may be given as parameter. If it is zero, state-change is assumed to
 // concern this session's configuration. If non-zero, the configuration is looked up
@@ -1211,12 +1137,7 @@ bool QNetworkSessionPrivateImpl::newState(QNetworkSession::State newState, TUint
 #endif
 
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE
-        // Use name of the IAP to set default IAP
-        QByteArray nameAsByteArray = activeConfig.name().toUtf8();
-        ifreq ifr;
-        strcpy(ifr.ifr_name, nameAsByteArray.constData());
-
-        setdefaultif(&ifr);
+        QSymbianSocketManager::instance().setDefaultConnection(&iConnection);
 #endif
     }
 
@@ -1268,10 +1189,7 @@ bool QNetworkSessionPrivateImpl::newState(QNetworkSession::State newState, TUint
         serviceConfig = QNetworkConfiguration();
         iError = QNetworkSession::SessionAbortedError;
         emit QNetworkSessionPrivate::error(iError);
-        if (ipConnectionNotifier) {
-            ipConnectionNotifier->StopNotifications();
-        }
-        Cancel();
+        closeHandles();
         // Start handling IAP state change signals from QNetworkConfigurationManagerPrivate
         iHandleStateNotificationsFromManager = true;
         emitSessionClosed = true; // Emit SessionClosed after state change has been reported
@@ -1537,6 +1455,11 @@ bool QNetworkSessionPrivateImpl::easyWlanTrueIapId(TUint32 &trueIapId) const
 }
 #endif
 
+RConnection* QNetworkSessionPrivateImpl::nativeSession()
+{
+    return &iConnection;
+}
+
 ConnectionProgressNotifier::ConnectionProgressNotifier(QNetworkSessionPrivateImpl& owner, RConnection& connection)
     : CActive(CActive::EPriorityUserInput), iOwner(owner), iConnection(connection)
 {
@@ -1576,6 +1499,50 @@ void ConnectionProgressNotifier::RunL()
     }
 }
 
+ConnectionStarter::ConnectionStarter(QNetworkSessionPrivateImpl &owner, RConnection &connection)
+    : CActive(CActive::EPriorityUserInput), iOwner(owner), iConnection(connection)
+{
+    CActiveScheduler::Add(this);
+}
+
+ConnectionStarter::~ConnectionStarter()
+{
+    Cancel();
+}
+
+void ConnectionStarter::Start()
+{
+    if (!IsActive()) {
+        iConnection.Start(iStatus);
+        SetActive();
+    }
+}
+
+void ConnectionStarter::Start(TConnPref &pref)
+{
+    if (!IsActive()) {
+        iConnection.Start(pref, iStatus);
+        SetActive();
+    }
+}
+
+void ConnectionStarter::RunL()
+{
+    iOwner.ConnectionStartComplete(iStatus.Int());
+    //note owner deletes on callback
+}
+
+TInt ConnectionStarter::RunError(TInt err)
+{
+    qWarning() << "ConnectionStarter::RunError" << err;
+    return KErrNone;
+}
+
+void ConnectionStarter::DoCancel()
+{
+    iConnection.Close();
+}
+
 QT_END_NAMESPACE
 
 #endif //QT_NO_BEARERMANAGEMENT
diff --git a/src/plugins/bearer/symbian/qnetworksession_impl.h b/src/plugins/bearer/symbian/qnetworksession_impl.h
index d5656d9..2dda456 100644
--- a/src/plugins/bearer/symbian/qnetworksession_impl.h
+++ b/src/plugins/bearer/symbian/qnetworksession_impl.h
@@ -68,11 +68,12 @@
 QT_BEGIN_NAMESPACE
 
 class ConnectionProgressNotifier;
+class ConnectionStarter;
 class SymbianEngine;
 
 typedef void (*TOpenCUnSetdefaultifFunction)();
 
-class QNetworkSessionPrivateImpl : public QNetworkSessionPrivate, public CActive
+class QNetworkSessionPrivateImpl : public QNetworkSessionPrivate
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE
                                  , public MMobilityProtocolResp
 #endif
@@ -111,7 +112,8 @@ public:
     quint64 bytesWritten() const;
     quint64 bytesReceived() const;
     quint64 activeTime() const;
-    
+
+    RConnection* nativeSession();
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE    
 public: // From MMobilityProtocolResp
     void PreferredCarrierAvailable(TAccessPointInfo aOldAPInfo,
@@ -125,7 +127,7 @@ public: // From MMobilityProtocolResp
 #endif    
 
 protected: // From CActive
-    void RunL();
+    void ConnectionStartComplete(TInt statusCode);
     void DoCancel();
     
 private Q_SLOTS:
@@ -149,6 +151,7 @@ private:
     bool easyWlanTrueIapId(TUint32 &trueIapId) const;
 #endif
 
+    void closeHandles();
 
 private: // data
     SymbianEngine *engine;
@@ -159,19 +162,17 @@ private: // data
 
     QDateTime startTime;
 
-    RLibrary iOpenCLibrary;
-    TOpenCUnSetdefaultifFunction iDynamicUnSetdefaultif;
-
-    mutable RSocketServ iSocketServ;
+    mutable RSocketServ &iSocketServ; //not owned, shared from QtCore
     mutable RConnection iConnection;
     mutable RConnectionMonitor iConnectionMonitor;
     ConnectionProgressNotifier* ipConnectionNotifier;
-    
+    ConnectionStarter* ipConnectionStarter;
+
     bool iHandleStateNotificationsFromManager;
     bool iFirstSync;
     bool iStoppedByUser;
     bool iClosedByUser;
-    
+
 #ifdef SNAP_FUNCTIONALITY_AVAILABLE    
     CActiveCommsMobilityApiExt* iMobility;
 #endif    
@@ -189,6 +190,7 @@ private: // data
     bool isOpening;
 
     friend class ConnectionProgressNotifier;
+    friend class ConnectionStarter;
 };
 
 class ConnectionProgressNotifier : public CActive
@@ -211,6 +213,24 @@ private: // Data
     
 };
 
+class ConnectionStarter : public CActive
+{
+public:
+    ConnectionStarter(QNetworkSessionPrivateImpl &owner, RConnection &connection);
+    ~ConnectionStarter();
+
+    void Start();
+    void Start(TConnPref &pref);
+protected:
+    void RunL();
+    TInt RunError(TInt err);
+    void DoCancel();
+
+private: // Data
+    QNetworkSessionPrivateImpl &iOwner;
+    RConnection& iConnection;
+};
+
 QT_END_NAMESPACE
 
 #endif //QNETWORKSESSION_IMPL_H
diff --git a/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp b/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
index 3d8cf50..9a94c30 100644
--- a/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
+++ b/src/plugins/gfxdrivers/directfb/qdirectfbwindowsurface.cpp
@@ -365,10 +365,12 @@ void QDirectFBWindowSurface::flush(QWidget *widget, const QRegion &region,
     if (!win)
         return;
 
-#ifndef QT_NO_QWS_PROXYSCREEN
+#if !defined(QT_NO_QWS_PROXYSCREEN) && !defined(QT_NO_GRAPHICSVIEW)
     QWExtra *extra = qt_widget_private(widget)->extraData();
     if (extra && extra->proxyWidget)
         return;
+#else
+    Q_UNUSED(widget);
 #endif
 
     const quint8 windowOpacity = quint8(win->windowOpacity() * 0xff);
diff --git a/src/plugins/qmltooling/qmldbg_ost/qmldbg_ost.pro b/src/plugins/qmltooling/qmldbg_ost/qmldbg_ost.pro
new file mode 100644
index 0000000..2748889
--- /dev/null
+++ b/src/plugins/qmltooling/qmldbg_ost/qmldbg_ost.pro
@@ -0,0 +1,21 @@
+TARGET = qmldbg_ost
+QT       += declarative network
+
+include(../../qpluginbase.pri)
+
+QTDIR_build:DESTDIR  = $$QT_BUILD_TREE/plugins/qmltooling
+QTDIR_build:REQUIRES += "contains(QT_CONFIG, declarative)"
+
+SOURCES += \
+    qmlostplugin.cpp \
+	qostdevice.cpp
+
+HEADERS += \
+    qmlostplugin.h \
+    qostdevice.h \
+    usbostcomm.h
+
+target.path += $$[QT_INSTALL_PLUGINS]/qmltooling
+INSTALLS += target
+
+symbian:TARGET.UID3=0x20031E92
diff --git a/src/plugins/qmltooling/qmldbg_ost/qmlostplugin.cpp b/src/plugins/qmltooling/qmldbg_ost/qmlostplugin.cpp
new file mode 100644
index 0000000..1c91c34
--- /dev/null
+++ b/src/plugins/qmltooling/qmldbg_ost/qmlostplugin.cpp
@@ -0,0 +1,143 @@
+/****************************************************************************
+**
+** 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 QtDeclarative 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 "qmlostplugin.h"
+#include "qostdevice.h"
+
+#include <private/qdeclarativedebugserver_p.h>
+#include <private/qpacketprotocol_p.h>
+
+QT_BEGIN_NAMESPACE
+
+static const TInt KQmlOstProtocolId = 0x94;
+
+class QmlOstPluginPrivate {
+public:
+    QmlOstPluginPrivate();
+
+    QOstDevice *ost;
+    QPacketProtocol *protocol;
+    QDeclarativeDebugServer *debugServer;
+};
+
+QmlOstPluginPrivate::QmlOstPluginPrivate() :
+    ost(0),
+    protocol(0),
+    debugServer(0)
+{
+}
+
+QmlOstPlugin::QmlOstPlugin() :
+    d_ptr(new QmlOstPluginPrivate)
+{
+}
+
+QmlOstPlugin::~QmlOstPlugin()
+{
+    delete d_ptr;
+}
+
+void QmlOstPlugin::setServer(QDeclarativeDebugServer *server)
+{
+    Q_D(QmlOstPlugin);
+    d->debugServer = server;
+}
+
+bool QmlOstPlugin::isConnected() const
+{
+    Q_D(const QmlOstPlugin);
+    return d->ost && d->ost->isOpen();
+}
+
+void QmlOstPlugin::send(const QByteArray &message)
+{
+    Q_D(QmlOstPlugin);
+
+    if (!isConnected())
+        return;
+
+    QPacket pack;
+    pack.writeRawData(message.data(), message.length());
+
+    d->protocol->send(pack);
+    //d->socket->flush();
+}
+
+void QmlOstPlugin::disconnect()
+{
+    Q_D(QmlOstPlugin);
+
+    delete d->protocol;
+    d->protocol = 0;
+}
+
+void QmlOstPlugin::setPort(int port, bool block)
+{
+    Q_UNUSED(port);
+    Q_UNUSED(block);
+
+    Q_D(QmlOstPlugin);
+
+    d->ost = new QOstDevice(this);
+    bool ok = d->ost->open(KQmlOstProtocolId);
+    if (!ok) {
+        if (d->ost->errorString().length())
+            qDebug("Error from QOstDevice: %s", qPrintable(d->ost->errorString()));
+        qWarning("QDeclarativeDebugServer: Unable to listen on OST"); // This message is part of the signalling - do not change the format!
+        return;
+    }
+    d->protocol = new QPacketProtocol(d->ost, this);
+    QObject::connect(d->protocol, SIGNAL(readyRead()), this, SLOT(readyRead()));
+    qWarning("QDeclarativeDebugServer: Waiting for connection via OST"); // This message is part of the signalling - do not change the format!
+}
+
+void QmlOstPlugin::readyRead()
+{
+    Q_D(QmlOstPlugin);
+    QPacket packet = d->protocol->read();
+
+    QByteArray content = packet.data();
+    d->debugServer->receiveMessage(content);
+}
+
+Q_EXPORT_PLUGIN2(qmlostplugin, QmlOstPlugin)
+
+QT_END_NAMESPACE
diff --git a/src/plugins/qmltooling/qmldbg_ost/qmlostplugin.h b/src/plugins/qmltooling/qmldbg_ost/qmlostplugin.h
new file mode 100644
index 0000000..eee6ee1
--- /dev/null
+++ b/src/plugins/qmltooling/qmldbg_ost/qmlostplugin.h
@@ -0,0 +1,81 @@
+/****************************************************************************
+**
+** 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 QtDeclarative 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMLOSTPLUGIN_H
+#define QMLOSTPLUGIN_H
+
+#include <QtGui/QStylePlugin>
+#include <QtDeclarative/private/qdeclarativedebugserverconnection_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QDeclarativeDebugServer;
+class QmlOstPluginPrivate;
+
+class QmlOstPlugin : public QObject, public QDeclarativeDebugServerConnection
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QmlOstPlugin)
+    Q_DISABLE_COPY(QmlOstPlugin)
+    Q_INTERFACES(QDeclarativeDebugServerConnection)
+
+
+public:
+    QmlOstPlugin();
+    ~QmlOstPlugin();
+
+    void setServer(QDeclarativeDebugServer *server);
+    void setPort(int port, bool bock);
+
+    bool isConnected() const;
+    void send(const QByteArray &message);
+    void disconnect();
+
+private Q_SLOTS:
+    void readyRead();
+
+private:
+    QmlOstPluginPrivate *d_ptr;
+};
+
+QT_END_NAMESPACE
+
+#endif // QMLOSTPLUGIN_H
diff --git a/src/plugins/qmltooling/qmldbg_ost/qostdevice.cpp b/src/plugins/qmltooling/qmldbg_ost/qostdevice.cpp
new file mode 100644
index 0000000..21b0169
--- /dev/null
+++ b/src/plugins/qmltooling/qmldbg_ost/qostdevice.cpp
@@ -0,0 +1,180 @@
+/****************************************************************************
+**
+** 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 QtDeclarative 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 "qostdevice.h"
+#include <e32base.h>
+
+#include "usbostcomm.h"
+
+class QOstDevicePrivate : public CActive
+{
+    QOstDevice* q_ptr;
+    Q_DECLARE_PUBLIC(QOstDevice)
+
+public:
+    QOstDevicePrivate() : CActive(CActive::EPriorityStandard) {
+        CActiveScheduler::Add(this);
+    }
+    ~QOstDevicePrivate() {
+        Cancel();
+    }
+
+private:
+    void RunL();
+    void DoCancel();
+
+private:
+    RUsbOstComm ost;
+    TBuf8<4096> readBuf;
+    QByteArray dataBuf;
+};
+
+QOstDevice::QOstDevice(QObject *parent) :
+    QIODevice(parent), d_ptr(new QOstDevicePrivate)
+{
+    d_ptr->q_ptr = this;
+}
+
+QOstDevice::~QOstDevice()
+{
+    close();
+    delete d_ptr;
+}
+
+bool QOstDevice::open(int ostProtocolId)
+{
+    if (isOpen())
+        return false;
+
+    Q_D(QOstDevice);
+    TInt err = d->ost.Connect();
+    if (!err) err = d->ost.Open();
+    const TVersion KRequiredVersion(1,1,0);
+    TVersion version = d->ost.Version();
+    if (version.iMajor < KRequiredVersion.iMajor ||
+            (version.iMajor == KRequiredVersion.iMajor && version.iMinor < KRequiredVersion.iMinor)) {
+        setErrorString("CODA version too old. At least version 4.0.18 (without TRK) is required.");
+        return false;
+    }
+
+    if (!err) err = d->ost.RegisterProtocolID((TOstProtIds)ostProtocolId, EFalse);
+    if (!err) {
+        d->ost.ReadMessage(d->iStatus, d->readBuf);
+        d->SetActive();
+        return QIODevice::open(ReadWrite | Unbuffered);
+    }
+    return false;
+}
+
+void QOstDevicePrivate::RunL()
+{
+    Q_Q(QOstDevice);
+    //qDebug("QOstDevice received %d bytes q=%x", readBuf.Size(), q);
+    if (iStatus == KErrNone) {
+        QByteArray data = QByteArray::fromRawData((const char*)readBuf.Ptr(), readBuf.Size());
+        dataBuf.append(data);
+
+        readBuf.Zero();
+        ost.ReadMessage(iStatus, readBuf);
+        SetActive();
+
+        emit q->readyRead();
+    } else {
+        q->setErrorString(QString("Error %1 from RUsbOstComm::ReadMessage()").arg(iStatus.Int()));
+    }
+    //qDebug("-QOstDevicePrivate RunL");
+}
+
+void QOstDevicePrivate::DoCancel()
+{
+    ost.ReadCancel();
+}
+
+void QOstDevice::close()
+{
+    Q_D(QOstDevice);
+    QIODevice::close();
+    d->Cancel();
+    // RDbgTrcComm::Close isn't safe to call when not open, sigh
+    if (d->ost.Handle()) {
+        d->ost.Close();
+    }
+}
+
+qint64 QOstDevice::readData(char *data, qint64 maxSize)
+{
+    Q_D(QOstDevice);
+    if (d->dataBuf.length() == 0 && !d->IsActive())
+        return -1;
+    qint64 available = qMin(maxSize, (qint64)d->dataBuf.length());
+    memcpy(data, d->dataBuf.constData(), available);
+    d->dataBuf.remove(0, available);
+    return available;
+}
+
+static const TInt KMaxOstPacketLen = 4096;
+
+qint64 QOstDevice::writeData(const char *data, qint64 maxSize)
+{
+    Q_D(QOstDevice);
+    TPtrC8 ptr((const TUint8*)data, (TInt)maxSize);
+    while (ptr.Length()) {
+        TPtrC8 fragment = ptr.Left(qMin(ptr.Length(), KMaxOstPacketLen));
+        //qDebug("QOstDevice writing %d bytes", fragment.Length());
+        TRequestStatus stat;
+        d->ost.WriteMessage(stat, fragment);
+        User::WaitForRequest(stat);
+        if (stat.Int() != KErrNone) {
+            setErrorString(QString("Error %1 from RUsbOstComm::WriteMessage()").arg(stat.Int()));
+            return -1;
+        }
+        ptr.Set(ptr.Mid(fragment.Length()));
+    }
+    emit bytesWritten(maxSize); //TODO does it matter this is emitted synchronously?
+    //qDebug("QOstDevice wrote %d bytes", ptr.Size());
+    return maxSize;
+}
+
+qint64 QOstDevice::bytesAvailable() const
+{
+    Q_D(const QOstDevice);
+    return d->dataBuf.length();
+}
diff --git a/src/plugins/qmltooling/qmldbg_ost/qostdevice.h b/src/plugins/qmltooling/qmldbg_ost/qostdevice.h
new file mode 100644
index 0000000..2c26ff7
--- /dev/null
+++ b/src/plugins/qmltooling/qmldbg_ost/qostdevice.h
@@ -0,0 +1,75 @@
+/****************************************************************************
+**
+** 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 QtDeclarative 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QOSTDEVICE_H
+#define QOSTDEVICE_H
+
+#include <QtCore/QIODevice>
+
+QT_BEGIN_NAMESPACE
+
+class QOstDevicePrivate;
+
+class QOstDevice : public QIODevice
+{
+    Q_OBJECT
+    Q_DECLARE_PRIVATE(QOstDevice)
+    Q_DISABLE_COPY(QOstDevice)
+
+public:
+    explicit QOstDevice(QObject *parent=0);
+    ~QOstDevice();
+
+    bool open(int ostProtocolId);
+    void close();
+
+protected:
+    qint64 readData(char *data, qint64 maxSize);
+    qint64 writeData(const char *data, qint64 maxSize);
+    qint64 bytesAvailable() const;
+
+private:
+    QOstDevicePrivate* d_ptr;
+};
+
+QT_END_NAMESPACE
+
+#endif // QOSTDEVICE_H
diff --git a/src/plugins/qmltooling/qmldbg_ost/usbostcomm.h b/src/plugins/qmltooling/qmldbg_ost/usbostcomm.h
new file mode 100644
index 0000000..48ff7bf
--- /dev/null
+++ b/src/plugins/qmltooling/qmldbg_ost/usbostcomm.h
@@ -0,0 +1,191 @@
+/****************************************************************************
+**
+** 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 QtDeclarative 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef USBHOSTCOMM_H
+#define USBHOSTCOMM_H
+
+// Based on the official usbostrouter header, modified to remove dependancy on
+// the client DLL
+
+#include <e32base.h>
+
+typedef int TOstProtIds;
+
+class RUsbOstComm : public RSessionBase
+{
+public:
+    RUsbOstComm();
+    TInt Connect();
+    TInt Disconnect();
+    TInt Open();
+    TInt Close();
+    TInt RegisterProtocolID(TOstProtIds aId, TBool aNeedHeader);
+    void ReadMessage(TRequestStatus& aStatus, TDes8& aDes);
+    TInt ReadCancel();
+    void WriteMessage(TRequestStatus& aStatus, const TDesC8& aDes, TBool aHasHeader=EFalse);
+    TVersion Version() const;
+
+private:
+    enum TUsbOstCmdCode
+    {
+        EUsbOstCmdCodeFirst,
+        EUsbOstCmdConnect,
+        EUsbOstCmdDisconnect,
+        EUsbOstCmdCodeGetAcmConfig,
+        EUsbOstCmdCodeSetAcmConfig,
+        EUsbOstCmdCodeOpen,
+        EUsbOstCmdCodeClose,
+        EUsbOstCmdCodeRegisterId,
+        EUsbOstCmdCodeRegisterIds,
+        EUsbOstCmdCodeUnRegisterId,
+        EUsbOstCmdCodeUnRegisterIds,
+        EUsbOstCmdCodeReadMsg,
+        EUsbOstCmdCodeReadCancel,
+        EUsbOstCmdCodeWriteMsg,
+        EUsbOstCmdCodeWriteCancel,
+        EUsbOstCmdCodeLast
+    };
+};
+
+RUsbOstComm::RUsbOstComm()
+{
+}
+
+TInt RUsbOstComm::Connect()
+{
+    _LIT(KUsbOstServerName, "!UsbOstRouter");
+    _LIT(KUsbOstServerImageName, "usbostrouter");
+    const TUid KUsbOstServerUid = { 0x200170BE };
+    TInt startupAttempts = 2;
+    for(;;) {
+        TInt ret = CreateSession(KUsbOstServerName, TVersion(1,0,0));
+        if (ret != KErrNotFound && ret != KErrServerTerminated) {
+            return ret;
+        }
+
+        if (startupAttempts-- == 0) {
+            return ret;
+        }
+
+        RProcess server;
+        ret = server.Create(KUsbOstServerImageName, KNullDesC, KUsbOstServerUid);
+        if (ret != KErrNone)
+            return ret;
+
+        TRequestStatus serverDiedRequestStatus;
+        server.Rendezvous(serverDiedRequestStatus);
+
+        if (serverDiedRequestStatus != KRequestPending) {
+            // Abort startup
+            server.Kill(KErrNone);
+        } else {
+            // Logon OK - start the server
+            server.Resume();
+        }
+        User::WaitForRequest(serverDiedRequestStatus);
+        ret = (server.ExitType() == EExitPanic) ? KErrGeneral : serverDiedRequestStatus.Int();
+        server.Close();
+
+        if (ret != KErrNone && ret != KErrAlreadyExists) {
+            return ret;
+        }
+    }
+}
+
+TInt RUsbOstComm::Disconnect()
+{
+    return SendReceive(EUsbOstCmdDisconnect);
+}
+
+TInt RUsbOstComm::Open()
+{
+    return SendReceive(EUsbOstCmdCodeOpen);
+}
+
+TInt RUsbOstComm::Close()
+{
+    TInt err = SendReceive(EUsbOstCmdCodeClose);
+    RHandleBase::Close();
+    return err;
+}
+
+TInt RUsbOstComm::RegisterProtocolID(const TOstProtIds aId, TBool aNeedHeader)
+{
+    TIpcArgs args(aId, aNeedHeader);
+    return SendReceive(EUsbOstCmdCodeRegisterId, args);
+}
+
+void RUsbOstComm::ReadMessage(TRequestStatus& aStatus, TDes8& aDes)
+{
+    TIpcArgs args(aDes.MaxLength(), &aDes);
+    SendReceive(EUsbOstCmdCodeReadMsg, args, aStatus);
+}
+
+TInt RUsbOstComm::ReadCancel()
+{
+    return SendReceive(EUsbOstCmdCodeReadCancel);
+}
+
+void RUsbOstComm::WriteMessage(TRequestStatus& aStatus, const TDesC8& aDes, TBool aHasHeader)
+{
+    TIpcArgs args(aHasHeader, aDes.Length(), &aDes);
+    SendReceive(EUsbOstCmdCodeWriteMsg, args, aStatus);
+}
+
+typedef TVersion (*TVersionFunction)(const RUsbOstComm*);
+const TInt KVersionOrdinal = 17;
+
+TVersion RUsbOstComm::Version() const
+{
+    // This function has to go to the DLL, unfortunately
+    TVersion result; // Return 0.0.0 on any error
+    RLibrary lib;
+    TInt err = lib.Load(_L("usbostcomm"));
+    if (err) return result;
+
+    TLibraryFunction fn = lib.Lookup(KVersionOrdinal);
+    if (fn)
+        result = ((TVersionFunction)fn)(this);
+    lib.Close();
+    return result;
+}
+
+#endif //USBHOSTCOMM_H
diff --git a/src/plugins/qmltooling/tcpserver/tcpserver.pro b/src/plugins/qmltooling/qmldbg_tcp/qmldbg_tcp.pro
index f4f2666..e8ab962 100644
--- a/src/plugins/qmltooling/tcpserver/tcpserver.pro
+++ b/src/plugins/qmltooling/qmldbg_tcp/qmldbg_tcp.pro
@@ -1,4 +1,4 @@
-TARGET = tcpserver
+TARGET = qmldbg_tcp
 QT       += declarative network
 
 include(../../qpluginbase.pri)
@@ -15,4 +15,4 @@ HEADERS += \
 target.path += $$[QT_INSTALL_PLUGINS]/qmltooling
 INSTALLS += target
 
-symbian:TARGET.UID3=0x20031E90 
\ No newline at end of file
+symbian:TARGET.UID3=0x20031E90
diff --git a/src/plugins/qmltooling/tcpserver/qtcpserverconnection.cpp b/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnection.cpp
index e1298e8..85c43e3 100644
--- a/src/plugins/qmltooling/tcpserver/qtcpserverconnection.cpp
+++ b/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnection.cpp
@@ -97,7 +97,8 @@ void QTcpServerConnection::send(const QByteArray &message)
 {
     Q_D(QTcpServerConnection);
 
-    if (!isConnected())
+    if (!isConnected()
+            || !d->protocol || !d->socket)
         return;
 
     QPacket pack;
@@ -111,9 +112,10 @@ void QTcpServerConnection::disconnect()
 {
     Q_D(QTcpServerConnection);
 
-    delete d->protocol;
+    // protocol might still be processing packages at this point
+    d->protocol->deleteLater();
     d->protocol = 0;
-    delete d->socket;
+    d->socket->deleteLater();
     d->socket = 0;
 }
 
@@ -143,6 +145,9 @@ void QTcpServerConnection::listen()
 void QTcpServerConnection::readyRead()
 {
     Q_D(QTcpServerConnection);
+    if (!d->protocol)
+        return;
+
     QPacket packet = d->protocol->read();
 
     QByteArray content = packet.data();
diff --git a/src/plugins/qmltooling/tcpserver/qtcpserverconnection.h b/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnection.h
index 66a10e1..66a10e1 100644
--- a/src/plugins/qmltooling/tcpserver/qtcpserverconnection.h
+++ b/src/plugins/qmltooling/qmldbg_tcp/qtcpserverconnection.h
diff --git a/src/plugins/qmltooling/qmltooling.pro b/src/plugins/qmltooling/qmltooling.pro
index 01cf1a9..9b3346f 100644
--- a/src/plugins/qmltooling/qmltooling.pro
+++ b/src/plugins/qmltooling/qmltooling.pro
@@ -1,4 +1,4 @@
 TEMPLATE = subdirs
 
-SUBDIRS = tcpserver
-
+SUBDIRS = qmldbg_tcp
+symbian:SUBDIRS += qmldbg_ost
diff --git a/src/plugins/qpluginbase.pri b/src/plugins/qpluginbase.pri
index 45e3976..bcf473f 100644
--- a/src/plugins/qpluginbase.pri
+++ b/src/plugins/qpluginbase.pri
@@ -19,4 +19,23 @@ symbian: {
     TARGET.CAPABILITY = All -Tcb
     TARGET = $${TARGET}$${QT_LIBINFIX}
     load(armcc_warnings)
+
+    # Make partial upgrade SIS file for Qt plugin dll's
+    # Partial upgrade SIS file
+    vendorinfo = \
+        "; Localised Vendor name" \
+        "%{\"Nokia\"}" \
+        " " \
+        "; Unique Vendor name" \
+        ":\"Nokia, Qt\"" \
+        " "
+    isEmpty(QT_LIBINFIX): PARTIAL_UPGRADE_UID = 0x2001E61C
+    else: PARTIAL_UPGRADE_UID = 0xE001E61C
+
+    pu_header = "; Partial upgrade package for testing $${TARGET} changes without reinstalling everything" \
+                "$${LITERAL_HASH}{\"$${TARGET}\"}, ($$PARTIAL_UPGRADE_UID), $${QT_MAJOR_VERSION},$${QT_MINOR_VERSION},$${QT_PATCH_VERSION}, TYPE=PU"
+    partial_upgrade.pkg_prerules = pu_header vendorinfo
+    partial_upgrade.files = $$QMAKE_LIBDIR_QT/$${TARGET}.dll
+    partial_upgrade.path = c:/sys/bin
+    DEPLOYMENT += partial_upgrade
 }