[lwip-devel] [task #10088] Correctly implement close() vs. shutdown()

[Kieran Mansley]

Follow-up Comment #6, task #10088 (project lwip):

> Does shutdown(SHUT_RDWR) also do that?

Not sure.  I'd have to check. 

> We already have that information: the application tells TCP 
> about that by calling tcp_recved(). Isn't it enought to check 
> the receive window? If it has the initial size, no more data 
> should be buffered at higher levels.

Interesting idea, and should work I think.  The only reason it wouldn't would
be if any of the layers delay calling tcp_recved() rather than doing so as
soon as it has been passed to the application.

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