Add 'R' toggle key + fixes from initial testing

src/AppConfig.cpp

@@ -756,7 +756,7 @@ bool AppConfig::load() {
         DataNode *rec_node = cfg.rootNode()->getNext("recording");
 
         if (rec_node->hasAnother("path")) {
-            DataNode *rec_path = cfg.rootNode()->getNext("path");
+            DataNode *rec_path = rec_node->getNext("path");
             recordingPath = rec_path->element()->toString();
         }
     }

src/AppFrame.cpp

@@ -2502,6 +2502,7 @@ int AppFrame::OnGlobalKeyDown(wxKeyEvent &event) {
         case 'S':
         case 'P':
         case 'M':
+        case 'R':
             return 1;
         case '0':
         case '1':
@@ -2642,6 +2643,11 @@ int AppFrame::OnGlobalKeyUp(wxKeyEvent &event) {
             wxGetApp().setSoloMode(!wxGetApp().getSoloMode());
             return 1;
             break;
+        case 'R':
+            if (activeDemod) {
+                activeDemod->setRecording(!activeDemod->isRecording());
+            }
+            break;
         case 'P':
             wxGetApp().getSpectrumProcessor()->setPeakHold(!wxGetApp().getSpectrumProcessor()->getPeakHold());
             if (wxGetApp().getDemodSpectrumProcessor()) {

src/BookmarkMgr.cpp

@@ -360,7 +360,11 @@ bool BookmarkMgr::getExpandState(std::string groupName) {
 
 void BookmarkMgr::updateActiveList() {
 
-	std::lock_guard < std::recursive_mutex > lockData(busy_lock);
+    std::lock_guard < std::recursive_mutex > lockData(busy_lock);
+
+    if (wxGetApp().isShuttingDown()) {
+        return;
+    }
 	
 	BookmarkView *bmv = wxGetApp().getAppFrame()->getBookmarkView();
     

src/CubicSDR.cpp

@@ -203,6 +203,7 @@ CubicSDR::CubicSDR() : frequency(0), offset(0), ppm(0), snap(1), sampleRate(DEFA
         sampleRateInitialized.store(false);
         agcMode.store(true);
         soloMode.store(false);
+        shuttingDown.store(false);
         fdlgTarget = FrequencyDialog::FDIALOG_TARGET_DEFAULT;
         stoppedDev = nullptr;
 }
@@ -384,6 +385,8 @@ bool CubicSDR::OnInit() {
 }
 
 int CubicSDR::OnExit() {
+    shuttingDown.store(true);
+
 #if USE_HAMLIB
     if (rigIsActive()) {
         std::cout << "Terminating Rig thread.."  << std::endl << std::flush;
@@ -1025,6 +1028,11 @@ bool CubicSDR::getSoloMode() {
     return soloMode.load();
 }
 
+bool CubicSDR::isShuttingDown()
+{
+    return shuttingDown.load();
+}
+
 int CubicSDR::FilterEvent(wxEvent& event) {
     if (!appframe) {
         return -1;

src/CubicSDR.h

@@ -170,6 +170,8 @@ public:
 
     void setSoloMode(bool solo);
     bool getSoloMode();
+
+    bool isShuttingDown();
     
 #ifdef USE_HAMLIB
     RigThread *getRigThread();
@@ -195,6 +197,7 @@ private:
     std::atomic_llong sampleRate;
     std::string antennaName;
     std::atomic_bool agcMode;
+    std::atomic_bool shuttingDown;
 
     SDRThread *sdrThread = nullptr;
     SDREnumerator *sdrEnum = nullptr;

src/demod/DemodulatorMgr.cpp

@@ -58,7 +58,6 @@ void DemodulatorMgr::terminateAll() {
 
         DemodulatorInstancePtr d = demods.back();
         demods.pop_back();
-        wxGetApp().removeDemodulator(d);
         deleteThread(d);
     }
 }

src/demod/DemodulatorThread.cpp

@@ -44,7 +44,7 @@ void DemodulatorThread::onBindOutput(std::string name, ThreadQueueBasePtr thread
         audioVisOutputQueue = std::static_pointer_cast<DemodulatorThreadOutputQueue>(threadQueue);
     }
 
-    if (name == "AudioSinkOutput") {
+    if (name == "AudioSink") {
         std::lock_guard < std::mutex > lock(m_mutexAudioVisOutputQueue);
 
         audioSinkOutputQueue = std::static_pointer_cast<AudioThreadInputQueue>(threadQueue);

src/visual/PrimaryGLContext.cpp

@@ -104,17 +104,25 @@ void PrimaryGLContext::DrawDemodInfo(DemodulatorInstancePtr demod, RGBA4f color,
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
     bool soloMode = wxGetApp().getSoloMode();
+    bool isRecording = demod->isRecording();
     bool isSolo = soloMode && demod == wxGetApp().getDemodMgr().getLastActiveDemodulator();
     
+    RGBA4f labelBg(0, 0, 0, 0.35f);
+
     if (isSolo) {
-        glColor4f(0.8f, 0.8f, 0, 0.35f);
+        labelBg.r = labelBg.g = 0.8f;
     } else if (demod->isMuted()) {
-        glColor4f(0.8f, 0, 0, 0.35f);
+        labelBg.r = 0.8f;
     } else if (soloMode) {
-        glColor4f(0.2f, 0, 0, 0.35f);
-    } else {
-        glColor4f(0, 0, 0, 0.35f);
+        labelBg.r = 0.2f;
     }
+
+    // TODO: Better recording indicator... pulsating red circle?
+    if (isRecording) {
+        labelBg.g = 1.0f;
+    }
+
+    glColor4f(labelBg.r, labelBg.g, labelBg.b, labelBg.a);
     
     glBegin(GL_QUADS);
     glVertex3f(uxPos - ofsLeft, hPos + labelHeight, 0.0);
@@ -167,7 +175,11 @@ void PrimaryGLContext::DrawDemodInfo(DemodulatorInstancePtr demod, RGBA4f color,
     if (demod->isDeltaLock()) {
         demodLabel.append(" [V]");
     }
-    
+
+    if (isRecording) {
+        demodLabel.append(" [R]");
+    }
+
     if (demod->getDemodulatorType() == "USB") {
         GLFont::getFont(16, GLFont::getScaleFactor()).drawString(demodLabel, uxPos, hPos, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER, 0, 0, true);
     } else if (demod->getDemodulatorType() == "LSB") {