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+--- Thread: TIdUDPServer connected clients (/thread-2198.html)
TIdUDPServer connected clients - _b-har - 12-19-2020
Hello; is it possible to determine the clients currently connected to a TIdUDPServer? I can do this with the TCP server, but have not found a way to do it with the UDP server. Thank you.
RE: TIdUDPServer connected clients - rlebeau - 12-22-2020
(12-19-2020, 05:52 PM)_b-har Wrote: is it possible to determine the clients currently connected to a TIdUDPServer?
UDP is a connection-less protocol. There are no “connected clients”, only datagrams. You need to keep track of clients yourself in your own code. When you receive a new datagram from an unknown client, add that client to a list somewhere. If you don’t receive any datagram from that client for awhile, or if you receive a goodbye datagram (if your datagram protocol has one), remove that client from the list.
(12-19-2020, 05:52 PM)_b-har Wrote: I can do this with the TCP server
Because TCP has a concept of connections, and TIdTCPServer keeps track of them for its own purposes, but makes that list available to you as well.
(12-19-2020, 05:52 PM)_b-har Wrote: but have not found a way to do it with the UDP server.
Because there isn’t one.