Re: [lwip-users] tcp_accepted() and 1.4.1 -> 2.0.0

[Simon Goldschmidt]

Sergio R. Caprile wrote:
> I've just read the brand new shiny 2.0.0 docs, and tcp_accepted() has
> been put to sleep, six feet under, pushing up the daisies.

That's true: backlog handling has changed, but tcp_accepted() is (for now) 
still provided
as a compatibility macro defined to nothing.

The new backlog handling is done by two functions: tcp_backlog_delayed() and 
tcp_backlog_accepted()
which count up and down the number of outstanding connections. This is tested 
against
the listening pcb's backlog setting and new connections are rejected eventually.

The downside of lwIP's 'accepted' mechanism is that at this point, the tcp 
handshake is
already done, so even if you set an accepted pcb as 'delayed', the remote side 
thinks
the connection is established...

> am I in the correct path ?

Yes. Unless you need the backlog feature.


Simon