public async Task SendAsync(byte[] data)
{
using (await synchronization.LockAsync().ConfigureAwait(false)) {
Console.WriteLine("Sending to ID " + AdapterId + " AKA " + string.Join(" ", AdapterId.ToByteArray()));
try {
var stream = bluetoothClient.GetStream();
await stream.WriteAsync(BitConverter.GetBytes(data.Length), 0, 4).ConfigureAwait(false);
await stream.WriteAsync(data, 0, data.Length).ConfigureAwait(false);
Console.WriteLine("Sent to ID " + AdapterId + " AKA " + string.Join(" ", AdapterId.ToByteArray()));
} catch {
Console.WriteLine("Failed to send to ID " + AdapterId + " AKA " + string.Join(" ", AdapterId.ToByteArray()));
Teardown();
throw new NotConnectedException();
}
}
}
private void Teardown()
{
Console.WriteLine("Teardown connection to ID " + AdapterId + " AKA " + string.Join(" ", AdapterId.ToByteArray()));
bluetoothClient?.Dispose();
bluetoothClient = null;
disconnectedChannel.SetIsClosed(true);
}
public async Task <bool> TryHandshakeAsync(double minTimeoutSeconds)
{
try {
using (await synchronization.LockAsync().ConfigureAwait(false)) {
Console.WriteLine("Attempting to connect to ID " + AdapterId + " AKA " + string.Join(" ", AdapterId.ToByteArray()));
bluetoothClient = new BluetoothClient();
bluetoothClient.Authenticate = false;
bluetoothClient.Encrypt = false;
await bluetoothClient.ConnectAsync(address, CAMPFIRE_NET_SERVICE_CLASS).ConfigureAwait(false);
disconnectedChannel.SetIsClosed(false);
Console.WriteLine("Connected. Their Adapter ID is " + AdapterId + " AKA " + string.Join(" ", AdapterId.ToByteArray()));
ChannelsExtensions.Go(async() => {
Console.WriteLine("Entered BT Reader Task");
var networkStream = bluetoothClient.GetStream();
try {
while (!disconnectedChannel.IsClosed)
{
Console.WriteLine("Reading BT Frame");
var dataLengthBuffer = await ReadBytesAsync(networkStream, 4).ConfigureAwait(false);
var dataLength = BitConverter.ToInt32(dataLengthBuffer, 0);
Console.WriteLine("Got BT Frame Length: " + dataLength);
var data = await ReadBytesAsync(networkStream, dataLength).ConfigureAwait(false);
await inboundChannel.WriteAsync(data).ConfigureAwait(false);
}
} catch (Exception e) {
Console.WriteLine(e);
Teardown();
}
}).Forget();
return(true);
}
} catch (Exception e) {
Console.WriteLine("Failed to connect to ID " + AdapterId + " AKA " + string.Join(" ", AdapterId.ToByteArray()));
Console.WriteLine(e.GetType().FullName);
return(false);
}
}