private void DeviceAddedHandler(object aObj, DeviceAddedEventArgs aEvent)
{
// Devices can be turned off by the time they get to this point, at which point they end
// up null. Make sure the device isn't null.
if (aEvent.Device == null)
{
return;
}
var duplicates = from x in Devices
where x.Value.Identifier == aEvent.Device.Identifier
select x;
if (duplicates.Any())
{
_bpLogger.Debug($"Already have device {aEvent.Device.Name} in Devices list");
return;
}
// If we get to 4 billion devices connected, this may be a problem.
var deviceIndex = DeviceIds.ContainsKey(aEvent.Device.Identifier) ? DeviceIds[aEvent.Device.Identifier] : (uint)Interlocked.Increment(ref _deviceIndexCounter);
_bpLogger.Info((DeviceIds.ContainsKey(aEvent.Device.Identifier) ? "Re-" : string.Empty) + $"Adding Device {aEvent.Device.Name} at index {deviceIndex}");
DeviceIds[aEvent.Device.Identifier] = deviceIndex;
Devices[deviceIndex] = aEvent.Device;
aEvent.Device.DeviceRemoved += DeviceRemovedHandler;
aEvent.Device.MessageEmitted += MessageEmittedHandler;
var msg = new DeviceAdded(
deviceIndex,
aEvent.Device.Name,
GetAllowedMessageTypesAsDictionary(aEvent.Device, SpecVersion));
DeviceMessageReceived?.Invoke(this, new MessageReceivedEventArgs(msg));
}
