[lwip-devel] [bug #48543] TCP sent callback may prematurely report sent data when only part of a segment is acked

[Simon Goldschmidt]

Update of bug #48543 (project lwip):

                  Status:                    None => Works For Me           

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Follow-up Comment #1:

I don't think I get the problem: the 'sent' callback is called with the number
of bytes acked (actually, the difference between 'lastack' and the 'ackno' of
the received segment.

Your application has to ensure that the data is kept unchanged until *all*
bytes have been marked as sent, not only the first byte of it...

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