Re: [lwip-users] tcp_close callback

[address@hidden]

Bill,

I don't know exactly from where I took this info or where it is 
documented, but the recv callback is called with a NULL pointer when the 
connection has closed.

Simon


Bill Auerbach schrieb:
> Hello,
>
> I was wondering why there is no tcp_closed callback function. I 
> suspect there’s a good reason. I have a PC-based status window using a 
> socket and I’d like to write to the connection only when the port is 
> opened. I start logging on the tcp_accept callback and I’d like to 
> stop on a tcp_closed callback, or some other way to know the 
> connection has closed. Does anyone have any ideas or thoughts on this? 
> I probably can watch the pcb state, but I’m trying to have my 
> application not go further than API calls if I can help it.
>
> Thanks,
>
> Bill
>
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