B4J Question Socket Connection Limit

[aaronk]

Hi,

I am using code like the following..

Sub Process_Globals
   Private server As ServerSocket
   Private astream As AsyncStreams
End Sub
Sub AppStart (Args() As String)
   server.Initialize(51042, "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(BytesToString(Buffer, 0, Buffer.Length, "utf8"))  
   astream.Write("received!".GetBytes("utf8"))
End Sub

Just wondering, is there a limit of the number of connections that can connect at one time ?

For Example, if a user connects but doesn't disconnect, and then other user connects but doesn't disconnect etc.

If so, what is the limit and can it be changed ?

 

[Erel]

The limit is very large. However your code doesn't handle multiple connections correctly.

I highly recommend you to use a higher level protocol such as a http / websockets server (jServer library) or mqtt.

You can see an example that properly manages multiple connections here: https://www.b4x.com/android/forum/threads/b4j-cctv-example.34695/#post-203347