public async Task ConnectToDeviceAsync(IDevice device, ConnectParameters connectParameters = default(ConnectParameters), CancellationToken cancellationToken = default(CancellationToken))
{
if (device == null)
{
throw new ArgumentNullException(nameof(device));
}
if (device.State == DeviceState.Connected)
{
return;
}
using (var cts = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken))
{
await TaskBuilder.FromEvent <bool, EventHandler <DeviceEventArgs>, EventHandler <DeviceErrorEventArgs> >(
execute : () =>
{
ConnectToDeviceNativeAsync(device, connectParameters, cts.Token);
},
getCompleteHandler : (complete, reject) => (sender, args) =>
{
if (args.Device.Id == device.Id)
{
Trace.Message("ConnectToDeviceAsync Connected: {0} {1}", args.Device.Id, args.Device.Name);
complete(true);
}
},
subscribeComplete : handler => DeviceConnected += handler,
unsubscribeComplete : handler => DeviceConnected -= handler,
getRejectHandler : reject => (sender, args) =>
{
if (args.Device?.Id == device.Id)
{
Trace.Message("ConnectAsync Error: {0} {1}", args.Device?.Id, args.Device?.Name);
reject(new DeviceConnectionException((Guid)args.Device?.Id, args.Device?.Name,
args.ErrorMessage));
}
},
subscribeReject : handler => DeviceConnectionError += handler,
unsubscribeReject : handler => DeviceConnectionError -= handler,
token : cts.Token);
}
}
public abstract Task <IDevice> ConnectToKnownDeviceAsync(Guid deviceGuid, ConnectParameters connectParameters = default(ConnectParameters), CancellationToken cancellationToken = default(CancellationToken));
protected abstract Task ConnectToDeviceNativeAsync(IDevice device, ConnectParameters connectParameters, CancellationToken cancellationToken);