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From: | Piero 74 |
Subject: | Re: [lwip-users] Data waiting but no recv() |
Date: | Wed, 23 Jan 2008 11:49:13 +0100 |
Josh Rothstein wrote:
>
> What is the correct way to make sure that my stack does not lock up if I
> am receiving unexpected data over a connection? Should I just poll()
> each time around the loop? I cannot just place extra recv()s around the
> loop or else my task will block if no data is waiting.
Theoretically, you can do it in a different task, use select() to wait for
multiple sockets when you would be blocked waiting for input anyway and/or
use non-blocking sockets if you were going to be doing a busy poll anyway.
But the more efficient choice is to enable the LWIP_SO_RCVBUF option in
lwipopts.h and use setsockopt() to set it.
Jifl
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