Thanks for the info.
I had enabled "#define LWIP_SO_LINGER 1" in lwipopts.h which did not
affect the issue.
But looking at the link you sent I might also have to "struct netconn*
nc; nc->linger = 30;" or something like that to set the linger seconds
value of a particular netconn connection. I will have a play with that.
Terry
On 23/05/2019 14:45, ricardoschoof wrote:
Hi,
I have fixed my code (although I'm using sockets). It seems the socket
implementation was closing the connection even when there was pending data.
Enabling SO_LINGER cause the application to close the socket after all data
was sent, or a timeout occured.
The netconn solution also has a linger option, this might be the solution
you need?
netconn linger:
https://www.nongnu.org/lwip/2_0_x/structnetconn.html#a25ed06d944da0b0b9e7db5265be3fa3d
For more info on linger see (search for SO_LINGER)
http://man7.org/linux/man-pages/man7/socket.7.html
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