public async override Task <DeviceConnectionResult> ConnectAsync(CancellationToken token)
{
using (await _asyncLock.LockAsync())
{
if (_bleDevice != null || DeviceState != DeviceState.Disconnected)
{
return(DeviceConnectionResult.Error);
}
try
{
_bleDevice = _bleService.GetKnownDevice(Address);
if (_bleDevice == null)
{
return(DeviceConnectionResult.Error);
}
_bleDevice.Disconnected += OnDeviceDisconnected;
await SetStateAsync(DeviceState.Connecting, false);
var services = await _bleDevice.ConnectAndDiscoverServicesAsync(token);
token.ThrowIfCancellationRequested();
if (ProcessServices(services))
{
await StartOutputTaskAsync();
token.ThrowIfCancellationRequested();
await SetStateAsync(DeviceState.Connected, false);
return(DeviceConnectionResult.Ok);
}
}
catch (OperationCanceledException)
{
await DisconnectInternalAsync(false);
return(DeviceConnectionResult.Canceled);
}
catch (Exception)
{
}
await DisconnectInternalAsync(true);
return(DeviceConnectionResult.Error);
}
}
public async override Task <DeviceConnectionResult> ConnectAsync(
bool reconnect,
Action <Device> onDeviceDisconnected,
IEnumerable <ChannelConfiguration> channelConfigurations,
bool startOutputProcessing,
bool requestDeviceInformation,
CancellationToken token)
{
using (await _asyncLock.LockAsync())
{
if (_bleDevice != null || DeviceState != DeviceState.Disconnected)
{
return(DeviceConnectionResult.Error);
}
_onDeviceDisconnected = onDeviceDisconnected;
try
{
_bleDevice = _bleService.GetKnownDevice(Address);
if (_bleDevice == null)
{
return(DeviceConnectionResult.Error);
}
DeviceState = DeviceState.Connecting;
var services = await _bleDevice.ConnectAndDiscoverServicesAsync(
reconnect || AutoConnectOnFirstConnect,
OnCharacteristicChanged,
OnDeviceDisconnected,
token);
token.ThrowIfCancellationRequested();
if (await ValidateServicesAsync(services, token) &&
await AfterConnectSetupAsync(requestDeviceInformation, token))
{
if (startOutputProcessing)
{
await StartOutputTaskAsync();
}
token.ThrowIfCancellationRequested();
DeviceState = DeviceState.Connected;
return(DeviceConnectionResult.Ok);
}
}
catch (OperationCanceledException)
{
await DisconnectInternalAsync();
return(DeviceConnectionResult.Canceled);
}
catch (Exception)
{
}
await DisconnectInternalAsync();
return(DeviceConnectionResult.Error);
}
}
