[lwip-users] lwip_close()

[Ashutosh Srivastava]

Hi All, 

I am using the LWIP stack with the socket layer interface in my 
application. I am not sure about the actual BSD implementation 
of the close () system call and have a doubt in the lwip_close () 
function.

My application is a client which connects to a predefined server 
and reads incoming data. When the application wants to close the 
connection, the netconn_delete () sends a FIN segment to the 
server and returns without even waiting for the ACK from the 
server. 

My question is, why is the netconn_delete () function not waiting 
for the ACK for the FIN segment from the server and also a FIN 
segement from the server itself ? I thought the close () implementation 
should be like the connect () function call where a callback 
function is called when a SYN ACK is received from the server.

Thanks,
Ashutosh