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One thread could also simply be dedicated to sending heartbeats every 10 seconds.   If you think that this might interfere with data transfer, record the timestamp each time you send a message to any port, and have the heartbeat process read it.   I would have the heartbeat timer internally set for 3 seconds in this case so that it could always be sure to send a message to any of the ports while not allowing the 10-second window to expire for any.   But since you’re not talking about hundreds of ports here, almost any similar design will do.


In reply to Re: UDP connection by sundialsvc4
in thread UDP connection by falstad

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