Am 18.01.2010, 12:11 Uhr, schrieb Bernhard 'Gustl' Bauer
<[email protected]>:
Hi,
I'm using lwip 1.3.0 and sometimes I have a pbuf overflow.
I'm not sure I understand the pbuf concept. I have some data transfers
that exceed 1 tcp packet.
Every time http_recv is called I check if this is the 1st packet. If it
is I set a pointer to this pbuf and do not free this pbuf. If it is not
the 1st packet I store the data and free this pbuf.
Then I check if this is the last packet. If it is I process all data and
then free the pbuf of the 1st packet.
When there is an tcp_err during a transfer I do free the 1st packet to.
Is there anything wrong with this?
TIA
Gustl
Gustl, what if you miss these last buffers sometimes? I would change the
logic:
If you get a first buffer check if you have some old stuff around and
clean up.
Regards Bob
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