B4J Question Socket server - How to keep memory of different clients?

[amorosik]

Socket server in B4J like Erel example

Sub Process_Globals
    Private server As ServerSocket
    Private astream As AsyncStreams
End Sub

Sub AppStart (Args() As String)
    Log("Hello world!!!")
    server.Initialize(61042, "server")
    server.Listen
    StartMessageLoop
End Sub

Sub server_NewConnection (Successful As Boolean, NewSocket As Socket)
    Log("New connection")
    If Successful Then
        astream.Initialize(NewSocket.InputStream, NewSocket.OutputStream, "astream")
    End If
    server.Listen
End Sub

Sub astream_NewData (Buffer() As Byte)
    Log("New Data")
    Log(BytesToString(Buffer, 0, Buffer.Length, "utf8"))
    astream.Write("received!".GetBytes("utf8"))
End Sub

Three different clients connect to the server
How to keep memory of different clients and send different messages to each client?

 

[TILogistic]

this can guide you
see:

Check Code: FTPServer.bas

[B4X] FTP Server implemented with Socket and AsyncStreams

(Note that the FTP client above is not part of this solution. It only demonstrates how you can use a standard FTP client to communicate with the server.) This is an example of using low level network features to implement a high level protocol. It is an implementation of a standard FTP server...

www.b4x.com

Other:

[B4X] Network + AsyncStreams + B4XSerializator

Better implementation, based on B4XPages: https://www.b4x.com/android/forum/threads/b4x-b4xpages-network-asyncstreams-b4xserializator.119011/#content New video tutorial: This is a simple and important example. It demonstrates several good practices related to network...

www.b4x.com

 

[Erel]

Another important example for low level multi-client server:
MJPEG / CCTV Server

However why waste your time building a multi-client server like this?
Simply use MQTT or jServer and it will be 100 times more powerful and trivial to implement.