protected sealed override IObservable <char> DataReceived()
{
return(Observable.Defer(async() =>
{
var stream = _client.GetStream();
var buffer = new byte[1024];
var readBytes = await stream.ReadAsync(buffer, 0, buffer.Length);
var chars = Encoding.ASCII.GetChars(buffer);
return chars.Take(readBytes).ToObservable();
}));
}
private void SendMessage(int NumRetries, string str)
{
IrDAClient client = null;
int CurrentTries = 0;
do
{
try
{
client = new IrDAClient(ServiceName);
}
catch (Exception se)
{
if ((CurrentTries >= NumRetries))
{
throw se;
}
}
CurrentTries = CurrentTries + 1;
} while (client == null & CurrentTries < NumRetries);
if ((client == null))
{
StatusBar1.BeginInvoke(new myDelegate(UpdateStatus), new object[] { "Error establishing contact" });
return;
}
System.IO.Stream stream = null;
try
{
stream = client.GetStream();
stream.Write(System.Text.ASCIIEncoding.ASCII.GetBytes(str), 0, str.Length);
StatusBar1.BeginInvoke(new myDelegate(UpdateStatus), new object[] { "Message sent!" });
txtMessagesArchive.Text = str + "\r\n" + txtMessagesArchive.Text;
}
catch (Exception e)
{
StatusBar1.BeginInvoke(new myDelegate(UpdateStatus), new object[] { "Error sending message." });
}
finally
{
if ((!(stream == null)))
{
stream.Close();
}
if ((!(client == null)))
{
client.Close();
}
}
}
private string ReceiveMessage()
{
int bytesRead = 0;
IrDAListener listener = new IrDAListener(ServiceName);
IrDAClient client = null;
System.IO.Stream stream = null;
byte[] Buffer = new byte[MAX_MESSAGE_SIZE - 1];
string str = string.Empty;
try
{
listener.Start();
//---blocking call---
client = listener.AcceptIrDAClient();
stream = client.GetStream();
bytesRead = stream.Read(Buffer, 0, Buffer.Length);
//---format the received message---
str = ">" + System.Text.ASCIIEncoding.ASCII.GetString(Buffer, 0, bytesRead);
}
catch (SocketException ex)
{
//---ignore error---
}
catch (Exception e)
{
txtMessagesArchive.BeginInvoke(new myDelegate(UpdateStatus),
new object[] { e.ToString() });
}
finally
{
if ((!(stream == null)))
{
stream.Close();
}
if ((!(client == null)))
{
client.Close();
}
listener.Stop();
}
return(str);
}
private void SendMessage(int NumRetries, string str)
{
IrDAClient client = null;
int CurrentTries = 0;
//---try to establish a connection---
do
{
try
{
client = new IrDAClient(ServiceName);
}
catch (Exception se)
{
if ((CurrentTries >= NumRetries))
{
throw se;
}
}
CurrentTries = CurrentTries + 1;
} while (client == null & CurrentTries < NumRetries);
//---timeout occurred---
if ((client == null))
{
txtMessagesArchive.BeginInvoke(new myDelegate(UpdateStatus),
new object[] { "Error establishing contact" });
return;
}
//---send the message over a stream object---
System.IO.Stream stream = null;
try
{
stream = client.GetStream();
stream.Write(System.Text.ASCIIEncoding.ASCII.GetBytes(str), 0, str.Length);
//---update the status bar---
txtMessagesArchive.BeginInvoke(new myDelegate(UpdateStatus),
new object[] { "Message sent!" });
//---display the message that was sent---
txtMessagesArchive.Text = str + Environment.NewLine + txtMessagesArchive.Text;
}
catch (Exception e)
{
txtMessagesArchive.BeginInvoke(new myDelegate(UpdateStatus),
new object[] { "Error sending message." });
}
finally
{
if ((!(stream == null)))
{
stream.Close();
}
if ((!(client == null)))
{
client.Close();
}
}
}
private ObexStatusCode Connect()
{
if (!connected)
{
if (ns == null)
{
try {
if (uri.Host.Length == 0)
{
System.Diagnostics.Debug.Assert(m_alreadyConnectedObexStream != null);
System.Diagnostics.Debug.Assert(m_alreadyConnectedObexStream.CanRead &&
m_alreadyConnectedObexStream.CanWrite);
ns = m_alreadyConnectedObexStream;
}
else
{
if (IrDAAddress.TryParse(uri.Host, out var address))
{
IrDAClient client = new IrDAClient();
string serviceName;
switch (uri.Scheme)
{
//potential for other obex based profiles to be added
default:
serviceName = IrDAService.ObjectExchange;
break;
}
client.Connect(new IrDAEndPoint(address, serviceName));
if (!client.Connected)
{
return(ObexStatusCode.NotFound);
}
ns = client.GetStream();
}
else if (BluetoothAddress.TryParse(uri.Host, out BluetoothAddress ba))
{
BluetoothClient cli = new BluetoothClient();
Guid serviceGuid;
switch (uri.Scheme)
{
case SchemeNames.Ftp:
serviceGuid = BluetoothService.ObexFileTransfer;
break;
//potential for other obex based profiles to be added
case SchemeNames.Sync:
serviceGuid = BluetoothService.IrMCSyncCommand;
break;
case SchemeNames.Pbap:
serviceGuid = BluetoothService.PhonebookAccessPse;
break;
case SchemeNames.Map:
serviceGuid = BluetoothService.MessageAccessProfile;
break;
default:
serviceGuid = BluetoothService.ObexObjectPush;
break;
}
cli.Connect(ba, serviceGuid);
if (!cli.Connected)
{
return(ObexStatusCode.NotFound);
}
ns = cli.GetStream();
}
else
{
//assume a tcp host
s = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
IPAddress ipa = null;
var addresses = System.Net.Dns.GetHostAddresses(uri.Host);
if (addresses.Length > 0)
{
ipa = addresses[0];
}
else
{
throw new WebException("Host not recognised", WebExceptionStatus.NameResolutionFailure);
}
IPEndPoint ipep = new IPEndPoint(ipa, 650);
s.Connect(ipep);
}
if (ns == null) // BluetoothClient used above
{
ns = new System.Net.Sockets.NetworkStream(s, true);
}
// Timeout
//ns.ReadTimeout = timeout;
//ns.WriteTimeout = timeout;
}
return(Connect_Obex());
} finally {
if (s != null && !s.Connected)
{
s = null;
}
}
}
}
Debug.Fail("Don't know that we every get here (Connect when connected).");
return((ObexStatusCode)0);
}
/// <summary>
/// Devuelve el Stream con el que nos comunicamos al dispositivo remoto
/// </summary>
/// <returns>El Stream</returns>
public override Stream GetStream()
{
return(clienteIR.GetStream());
}