[lwip-devel] [task #7865] implement non-blocking SEND operation (socket)

[Simon Goldschmidt]

Follow-up Comment #6, task #7865 (project lwip):

Thinking about this (especially in combination with the patch for bug
#28605), it might be enough to return EAGAIN and repeat the check for
available buffer space (that we do in sent_tcp) in poll_tcp (depending on if
we have returned EAGAIN before).

I might then still happen that we return EAGAIN again (e.g. we're still out
of a memp pool), but that's OK I guess.

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