Fix crash when no logger implemented. Add additional error reporting for GPS positioning.

sdrbase/maincore.cpp

@@ -88,6 +88,12 @@ MainCore *MainCore::instance()
 
 void MainCore::setLoggingOptions()
 {
+    if (!m_logger)
+    {
+        qDebug() << "MainCore::setLoggingOptions: No logger.";
+        return;
+    }
+
     m_logger->setConsoleMinMessageLevel(m_settings.getConsoleMinLogLevel());
 
     if (m_settings.getUseLogFile())
@@ -346,11 +352,15 @@ void MainCore::initPosition()
     if (m_positionSource)
     {
         connect(m_positionSource, &QGeoPositionInfoSource::positionUpdated, this, &MainCore::positionUpdated);
+        connect(m_positionSource, &QGeoPositionInfoSource::updateTimeout, this, &MainCore::positionUpdateTimeout);
+        connect(m_positionSource, qOverload<QGeoPositionInfoSource::Error>(&QGeoPositionInfoSource::error), this, &MainCore::positionError);
+        m_position = m_positionSource->lastKnownPosition();
+        m_positionSource->setUpdateInterval(1000);
         m_positionSource->startUpdates();
     }
     else
     {
-        qDebug() << "MainCore::initPosition: No position source.";
+        qWarning() << "MainCore::initPosition: No position source.";
     }
 }
 
@@ -372,3 +382,13 @@ void MainCore::positionUpdated(const QGeoPositionInfo &info)
         }
     }
 }
+
+void MainCore::positionUpdateTimeout()
+{
+    qWarning() << "MainCore::positionUpdateTimeout: GPS signal lost";
+}
+
+void MainCore::positionError(QGeoPositionInfoSource::Error positioningError)
+{
+    qWarning() << "MainCore::positionError: " << positioningError;
+}

sdrbase/maincore.h

@@ -26,6 +26,7 @@
 #include <QDateTime>
 #include <QObject>
 #include <QGeoPositionInfo>
+#include <QGeoPositionInfoSource>
 
 #include "export.h"
 #include "settings/mainsettings.h"
@@ -889,6 +890,8 @@ public:
 
 public slots:
     void positionUpdated(const QGeoPositionInfo &info);
+    void positionUpdateTimeout();
+    void positionError(QGeoPositionInfoSource::Error positioningError);
 
 signals:
     void deviceSetAdded(int index, DeviceAPI *device);