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[lwip-users] http server and pbuf overflow
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From: |
Bernhard 'Gustl' Bauer |
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Subject: |
[lwip-users] http server and pbuf overflow |
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Date: |
Mon, 18 Jan 2010 12:11:22 +0100 |
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User-agent: |
Thunderbird 2.0.0.23 (Windows/20090812) |
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