B4X

Move a Connection into a Socket Set

Demonstrates Socket.TakeSocket, which moves a connection into a newly created member of this object's socket set. After one or more calls, the object acts as a set of sockets.

Background. A socket set groups multiple connections so they can be monitored together with the SelectForReading and SelectForWriting methods. After success, the source socket holds no connection.

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Dim success As Boolean = False

Dim listenSock As ChilkatSocket
listenSock.Initialize("listenSock")

success = listenSock.BindAndListen(5000, 25)
If success = False Then
    Log(listenSock.LastErrorText)
    Return
End If


Dim connectedSock As ChilkatSocket
connectedSock.Initialize("connectedSock")
success = listenSock.AcceptNext(20000, connectedSock)
If success = False Then
    Log(listenSock.LastErrorText)
    Return
End If


'  Move the connection out of connectedSock and into a newly created member of this object's socket
'  set.  After one or more such calls, socketSet acts as a set of connected sockets (useful with the
'  SelectForReading / SelectForWriting methods).  After success, connectedSock holds no connection.
Dim socketSet As ChilkatSocket
socketSet.Initialize("socketSet")
success = socketSet.TakeSocket(connectedSock)
If success = False Then
    Log(socketSet.LastErrorText)
    Return
End If

Log("Connection added to the socket set.")