On Sat, 2006-10-07 at 01:01 +0200, Mateusz Plocinski wrote:
> Hi,
> I'm not an tcpip expert too, but I've worked with lwip for past few weeks. I
> had exactly the same problem like yours, also using SAM7X256 processor.
> I solved the problem changing following thing in api_msg.c:
>
> /* This is the Nagle algorithm: inhibit the sending of new TCP
> segments when new outgoing data arrives from the user if any
> previously transmitted data on the connection remains
> unacknowledged. */
>
> // if(err == ERR_OK && (msg->conn->pcb.tcp->unacked == NULL ||
> (msg->conn->pcb.tcp->flags & TF_NODELAY)) ) {
> tcp_output(msg->conn->pcb.tcp);
> // }
A better solution would be the one mentioned in this post to the mailing
list:
http://lists.gnu.org/archive/html/lwip-users/2006-09/msg00060.html
Hopefully this change (although probably not the enqueue problem
mentioned there) will make it into the main tree soon.
Thanks
Kieran
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