[lwip-users] Using lwIP polled, but not with lwip_poll

[Matt Walker]

Hi,

I'm attempting to integrate lwIP into an embedded application
framework that supplies its own poll like functionality. I would like
to make it so that lwIP sockets can be added to the framework's
implementation of poll rather than having a dedicated lwIP thread.

I'd be interested in hearing if anyone has done this before, or if
there's something I'm missing in the user APIs.

If there's not, what I'm roughly thinking is to move the definitions for
  lwip_poll_inc_sockets_used
  lwip_poll_dec_sockets_used
  lwip_pollscan
  lwip_link_select_cb
  lwip_unlink_select_cb
into priv/sockets_priv.h; and set the semaphore in the callback to one
that the framework gives for notifications. Basically trying to follow
lwip_poll as much as possible, just without waiting on the OS inside.

Any thoughts? And if I make the API change to move definitions into
priv; is that something that anyone is interested in having upstream?

Thanks,
Matt Walker