don't open ports already in use by devices

Author: hilsbos

src/Studio/Devices/OpenBCI/OpenBCIDriver.cpp

@@ -271,6 +271,10 @@ void OpenBCIAutoDetection::DetectDevices()
 		if (mBreak == true)
 			break;
 
+		// Before attempting to initialize a port, check if it is already in use
+		if (IsPortInUse(portNames[i]))
+			continue;
+
 		//
 		// Init Serial connection
 		//
@@ -434,6 +438,21 @@ void OpenBCIAutoDetection::DetectDevices()
 	mIsSearching = false;
 }
 
+bool OpenBCIAutoDetection::IsPortInUse(const String& portName)
+{
+    const uint32 numDevices = mDriver->mDevices.Size();
+    for (uint32 i = 0; i < numDevices; ++i)
+    {
+        OpenBCIDeviceBase* device = mDriver->mDevices[i];
+        if (device->GetSerialPortName() == portName)
+        {
+            LogDetailedInfo("OpenBCIAutoDetection: skipping port %s (already in use)", portName.AsChar());
+            return true;
+        }
+    }
+    return false;
+}
+
 
 void OpenBCISerialThread::run()
 {