Fix Trk error handling

Do not close a trk device from its read handler, wire messages
correctly. TrkDevice: Terminate threads before closing.

src/plugins/debugger/gdb/trkgdbadapter.cpp

@@ -143,7 +143,7 @@ TrkGdbAdapter::TrkGdbAdapter(GdbEngine *engine, const TrkOptionsPtr &options) :
 
 TrkGdbAdapter::~TrkGdbAdapter()
 {
-    delete m_gdbServer;
+    cleanup();
     logMessage("Shutting down.\n");
 }
 
@@ -283,6 +283,17 @@ QByteArray TrkGdbAdapter::trkInterruptMessage()
     return ba;
 }
 
+void TrkGdbAdapter::emitDelayedAdapterStartFailed(const QString &msg)
+{
+    m_adapterFailMessage = msg;
+    QTimer::singleShot(0, this, SLOT(slotEmitDelayedAdapterStartFailed()));
+}
+
+void TrkGdbAdapter::slotEmitDelayedAdapterStartFailed()
+{
+    emit adapterStartFailed(m_adapterFailMessage);
+}
+
 void TrkGdbAdapter::startInferiorEarly()
 {
     QTC_ASSERT(state() == AdapterStarting, qDebug() << state());
@@ -1063,8 +1074,9 @@ void TrkGdbAdapter::handleCreateProcess(const TrkResult &result)
         logMessage("ERROR: " + result.errorString());
         QString msg = _("Cannot start executable \"%1\" on the device:\n%2")
             .arg(m_remoteExecutable).arg(result.errorString());
-        //m_trkDevice.close();
-        emit adapterStartFailed(msg);
+        // Delay cleanup as not to close a trk device from its read handler,
+        // which blocks.
+        emitDelayedAdapterStartFailed(msg);
         return;
     }
     const char *data = result.data.data();
@@ -1470,7 +1482,7 @@ void TrkGdbAdapter::startAdapter()
     m_remoteExecutable = parameters.executable;
     m_symbolFile = parameters.symbolFileName;
     // FIXME: testing hack, remove!
-    if (parameters.processArgs.at(0) == _("@sym@")) {
+    if (parameters.processArgs.size() == 3 && parameters.processArgs.at(0) == _("@sym@")) {
         m_remoteExecutable = parameters.processArgs.at(1);
         m_symbolFile = parameters.processArgs.at(2);
     }
@@ -1593,7 +1605,9 @@ void TrkGdbAdapter::startGdb()
         QString msg = QString("Unable to start the gdb server at %1: %2.")
             .arg(m_gdbServerName).arg(m_gdbServer->errorString());
         logMessage(msg);
-        emit adapterStartFailed(msg); 
+        // Delay cleanup as not to close a trk device from its read handler,
+        // which blocks.
+        emitDelayedAdapterStartFailed(msg);
         return;
     }
 
@@ -1908,11 +1922,19 @@ void TrkGdbAdapter::setEnvironment(const QStringList &env)
     m_gdbProc.setEnvironment(env);
 }
 
+void TrkGdbAdapter::cleanup()
+{
+    if (m_trkDevice.isOpen())
+        m_trkDevice.close();
+    if (m_gdbServer)
+        delete m_gdbServer;
+}
+
 void TrkGdbAdapter::shutdown()
 {
     switch (state()) {
-
     case AdapterStarting:
+        cleanup();
         setState(DebuggerNotReady);
         return;
 
@@ -1931,10 +1953,7 @@ void TrkGdbAdapter::shutdown()
 
     case InferiorShutDown:
         setState(AdapterShuttingDown);
-        //sendTrkMessage(0x02, TrkCB(handleDisconnect));
-        m_trkDevice.close();
-        delete m_gdbServer;
-        m_gdbServer = 0;
+        cleanup();
         m_engine->postCommand(_("-gdb-exit"), CB(handleExit));
         return;
 

src/plugins/debugger/gdb/trkgdbadapter.h

@@ -90,8 +90,6 @@ signals:
     void output(const QString &msg);
 
 private:
-    friend class RunnerGui;
-
     const TrkOptionsPtr m_options;
     QString m_overrideTrkDevice;
 
@@ -115,11 +113,15 @@ public:
     bool isTrkAdapter() const { return true; }
     bool dumpersAvailable() const { return false; }
 
+private:
     void startAdapter();
     void prepareInferior();
     void startInferior();
     void interruptInferior();
     void shutdown();
+    void cleanup();
+    void emitDelayedAdapterStartFailed(const QString &msg);
+    Q_SLOT void slotEmitDelayedAdapterStartFailed();
 
     Q_SLOT void startInferiorEarly();
     void handleKill(const GdbResponse &response);
@@ -196,6 +198,7 @@ public:
     QByteArray trkInterruptMessage();
 
     trk::TrkDevice m_trkDevice;
+    QString m_adapterFailMessage;
 
     //
     // Gdb

src/plugins/qt4projectmanager/qt-s60/s60devicerunconfiguration.cpp

@@ -695,6 +695,11 @@ void S60DeviceRunControlBase::processFailed(const QString &program, QProcess::Pr
     emit finished();
 }
 
+void S60DeviceRunControlBase::printApplicationOutput(const QString &output)
+{
+    emit addToOutputWindowInline(this, output);
+}
+
 // =============== S60DeviceRunControl
 S60DeviceRunControl::S60DeviceRunControl(const QSharedPointer<ProjectExplorer::RunConfiguration> &runConfiguration) :
     S60DeviceRunControlBase(runConfiguration)
@@ -730,11 +735,6 @@ void S60DeviceRunControl::printRunFailNotice(const QString &errorMessage) {
     emit addToOutputWindow(this, tr("Could not start application: %1").arg(errorMessage));
 }
 
-void S60DeviceRunControl::printApplicationOutput(const QString &output)
-{
-    emit addToOutputWindowInline(this, output);
-}
-
 // ======== S60DeviceDebugRunControl
 
 S60DeviceDebugRunControl::S60DeviceDebugRunControl(const QSharedPointer<ProjectExplorer::RunConfiguration> &runConfiguration) :
@@ -748,7 +748,7 @@ S60DeviceDebugRunControl::S60DeviceDebugRunControl(const QSharedPointer<ProjectE
     connect(dm, SIGNAL(debuggingFinished()),
             this, SLOT(debuggingFinished()), Qt::QueuedConnection);
     connect(dm, SIGNAL(applicationOutputAvailable(QString)),
-            this, SLOT(slotAddToOutputWindow(QString)),
+            this, SLOT(printApplicationOutput(QString)),
             Qt::QueuedConnection);
 
     m_startParams->remoteChannel = rc->serialPortName();

src/plugins/qt4projectmanager/qt-s60/s60devicerunconfiguration.h

@@ -160,6 +160,9 @@ protected:
     virtual void handleLauncherFinished() = 0;
     void processFailed(const QString &program, QProcess::ProcessError errorCode);
 
+protected slots:
+    void printApplicationOutput(const QString &output);
+
 private slots:
     void readStandardError();
     void readStandardOutput();
@@ -208,7 +211,6 @@ private slots:
     void printStartingNotice();
     void printRunNotice(uint pid);
     void printRunFailNotice(const QString &errorMessage);
-    void printApplicationOutput(const QString &output);
 
 private:
 };

src/shared/trk/trkdevice.cpp

@@ -836,6 +836,8 @@ TrkDevice::~TrkDevice()
 
 bool TrkDevice::open(const QString &port, QString *errorMessage)
 {
+    if (d->verbose)
+        qDebug() << "Opening" << port << "is open: " << isOpen();
     close();
 #ifdef Q_OS_WIN
     d->deviceContext->device = CreateFile(port.toStdWString().c_str(),
@@ -908,6 +910,8 @@ void TrkDevice::close()
 {
     if (!isOpen())
         return;
+    d->readerThread->terminate();
+    d->writerThread->terminate();
 #ifdef Q_OS_WIN
     CloseHandle(d->deviceContext->device);
     d->deviceContext->device = INVALID_HANDLE_VALUE;
@@ -917,8 +921,6 @@ void TrkDevice::close()
 #else
     d->deviceContext->file.close();
 #endif
-    d->readerThread->terminate();
-    d->writerThread->terminate();
     if (d->verbose)
         emitLogMessage("Close");
 }