[lwip-devel] [patch #6723] Add option UDP_EXT_RECV_CALLBACK to enable new API function udp_ext_recv()

[Simon Goldschmidt]

Follow-up Comment #1, patch #6723 (project lwip):

Just a thought on that: wouldn't it be more backwards-compatible and maybe
cleaner (because of having less options) if we implemented a function that
received the additional parameters for the pcb?

We could implement that in global variables or cached in the pcbs. I know it
might not be cleaner from the application coding point of view, but it would
save some #ifs and the flag test (to get the type of input function to call).

We could implement something like

err_t udp_get_input_info(struct udp_pcb pcb, struct ip_addr* src, atruct
ip_hdr* iphdr, struct netif* inp);

to get the info, and the callback would stay the same for old and new
applications.

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