Re: [lwip-users] Netconn API - receive check withput 1ms delay

[Simon Goldschmidt]

"Marco Jakobs" <address@hidden> wrote:
> to receive data from some connections I use the netconn receive timeout to
> have nonblocking reception.
> [..]
> Is there any way doing this in LwIP 1.4.0?

Yes. Instead of using receive timeout, use the callback that can be passed to 
netconn_new_with_callback_*(). This callback function will be called in 
tcpip_thread() when there is new data to be received. For an example how to use 
it, have a look at the socket select implementation.

Using a receive timeout of '0' (effectively calling 'tryfetch' on the mbox) 
seems to be missing, but is less possibly effective than the other solution, 
anyway.

Simon