From 49b25f0a86d77be2a8127536c54923e1a5b9ee8e Mon Sep 17 00:00:00 2001
From: Kevin Matz <kevin@company235.com>
Date: Fri, 14 Apr 2023 10:18:29 -0400
Subject: [PATCH] close the port under certain error conditions

---
 platform/qt/dmxwidget/dmxwidget.cpp | 20 ++++++++++++++++++++
 platform/qt/dmxwidget/dmxwidget.h   |  1 +
 2 files changed, 21 insertions(+)

diff --git a/platform/qt/dmxwidget/dmxwidget.cpp b/platform/qt/dmxwidget/dmxwidget.cpp
index 23a8bc8..e9185d6 100644
--- a/platform/qt/dmxwidget/dmxwidget.cpp
+++ b/platform/qt/dmxwidget/dmxwidget.cpp
@@ -28,6 +28,7 @@ DmxWidget::DmxWidget(QObject *parent)
     , port_(new QSerialPort(this))
 {
   connect(this, &DmxWidget::serialDataRead, this, &DmxWidget::parseMessageBuffer);
+  connect(port_, &QSerialPort::errorOccurred, this, &DmxWidget::serialErrorOccured);
 }
 
 
@@ -159,6 +160,25 @@ void DmxWidget::sendMessage(std::shared_ptr<ENTTEC::Pro::MessageData> msg) const
 }
 
 
+/**
+ * @brief DmxWidget::serialErrorOccured
+ * @param error
+ */
+void DmxWidget::serialErrorOccured(QSerialPort::SerialPortError error)
+{
+  switch (error) {
+  case QSerialPort::WriteError:
+  case QSerialPort::ReadError:
+  case QSerialPort::ResourceError:
+  case QSerialPort::TimeoutError:
+    close();
+    break;
+  default:
+    break;
+  }
+}
+
+
 /**
  * @brief DmxWidget::availableWidgets
  * @return
diff --git a/platform/qt/dmxwidget/dmxwidget.h b/platform/qt/dmxwidget/dmxwidget.h
index 159f0b0..a7b9474 100644
--- a/platform/qt/dmxwidget/dmxwidget.h
+++ b/platform/qt/dmxwidget/dmxwidget.h
@@ -77,6 +77,7 @@ private:
 
 private slots:
     void parseMessageBuffer();
+    void serialErrorOccured(QSerialPort::SerialPortError);
 };
 
 Q_DECLARE_OPERATORS_FOR_FLAGS(DmxWidget::RxErrors)