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Re: [lwip-users] netconn_recv sequence
From: |
Frédéric BERNON |
Subject: |
Re: [lwip-users] netconn_recv sequence |
Date: |
Tue, 30 Oct 2007 23:05:39 +0100 |
What is the behaviour of netconn_recv when received data spans multiple
netbufs? Will each call to netconn_recv return each subsequent buffer, or
do I have to see if there are chained buffers and manually process each
one?
The best is to look how lwip_recv (in sockets.c) handles netbufs to have a
sample of what to do.
BTW, what is the current status (better said, as of lwIP1.1.1) of
netconn_recv blocking? Does it block forever or does it unblock (returning
NULL) after a timeout?
In current CVS head (post 1.2.0), you can decide to enable a recv timeout to
avoid to block forever (but it's an option).
----- Original Message -----
From: "Ivan Delamer" <address@hidden>
To: <address@hidden>
Sent: Tuesday, October 30, 2007 10:42 PM
Subject: [lwip-users] netconn_recv sequence
Hi All,
New to lwIP, have been searching the list and docs about this but found no
answer.
What is the behaviour of netconn_recv when received data spans multiple
netbufs? Will each call to netconn_recv return each subsequent buffer, or do
I have to see if there are chained buffers and manually process each one?
BTW, what is the current status (better said, as of lwIP1.1.1) of
netconn_recv blocking? Does it block forever or does it unblock (returning
NULL) after a timeout?
Many many thanks for any answers.
Ivan
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