Android Question AsyncStreams Incoming Connection

[jgbozza]

Using network library and AsynStreams, I have an array of sockets, adding the new one to this array every time the Server_NewConnection is fired.
When this new connections sends any data to server, it fires the AStreams_NewData event...so far so good.
How come I get to know which client has sent the data to the server? Is there any sort of async parameter that carries this information ?

 

[mc73]

What I do in such cases is adding an ID of the connected device at the beginning of the message sent.

 

[Erel]

You can use the Sender keyword to get the AsyncStream instance that raised the event. Together with a Map you can attach any other information you need.

See this example: B4J CCTV example

It is written with B4J but it should be the same as B4A.

 

[jgbozza]

Is there anywhere to find a little bit of code ? This is the second time you suggest me to use MAP for diferente aplications but I cannot find out how to implement a map in order to keep values of the socket (sender) and track them when the NewData is fired.
Tks

There's no sender attached to sockets or asyncstreams in the example you suggested me.

Sub Server_NewConnection (Successful As Boolean, NewSocket As Socket)
    If Successful Then
        If astream.IsInitialized Then astream.Close
        astream.InitializePrefix(NewSocket.InputStream, False, NewSocket.OutputStream, "astream")
        lblStatus.Text = "Status: Connected"
    Else
        Log(LastException)
    End If
    server.Listen
End Sub

Sub astream_NewData (Buffer() As Byte)
    Log("received: " & DateTime.GetSecond(DateTime.Now))
    Dim In As InputStream
    Log(Buffer.Length)
    In.InitializeFromBytesArray(Buffer, 0, Buffer.Length)
    Dim img As Image
    img.Initialize2(In)
    ImageView1.SetImage(img)
End Sub

 

[Erel]

It is in the second example: http://www.b4x.com/android/forum/threads/b4j-cctv-example.34695/#post-203347

Note that you should use the latest RandomAccessFile library.

 

[jgbozza]

RandomAccessFile is native right ? I should download the latest version of the IDE ? If so, I have to renew my license! Just let me know please

 

[Erel]

Which version of B4A are you using?

You can download the latest RAF library here: http://www.b4x.com/android/forum/th...can-handle-streams-of-any-size.30494/#content