Re: [lwip-users] Closing a connection

[Ed Sutter]

Ignore my last response.
I didn't realize this was lwip-specific.
Sorry!
Ed


Robert wrote:
> 
> Does anyone know the proper/best way to close a connection which using the
> "raw" interface?
> 
> In my application, I am using "heartbeat" messages to more quickly
> determine if packets continue to be able to be passed between client and
> server.  Once I detect that the hearbeats messages have stopped arriving,
> I issue a tcp_close();  I would expect that would cause the connection to
> be shutdown.  tcp_close() figures out that the connection is in the
> established state, and so then sends a TCP_FIN.  After a very long (15
> minutes?) delay, this finally results in a call to my err callback
> routine, which cleans things up.
> 
> Is there a better/faster way?  Perhaps setting the state to syn_sent
> before calling tcp_close() for example?
> 
> --
> Best Regards,
> Robert
> 
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