[lwip-users] lwip raw TCP client.

[matbli]

Hi,

I'm trying t write a TCP client using lwip. I have started with
functionality to 
open and closing a socket using raw API.

Opening a socket using:

rTcpConnect=tcp_connect(tcp_pcb, &ip, 2020, mainTcpConnectAccept);

Works fine, as it seems. My test server says new client IP=xxx.xxx.xxx.xxx.

Closing the socket using:

tcp_close(tcp_pcb);

Also works fine, as it seems. My test server says socket closed by client.

But when I try to connect again, I get:

tcp_connect: can only connected from state CLOSED


The only place I can find where pcb->state = CLOSED; is in:

tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb)

But I'm not shure how to us it or if this is the way to do it. If I shall us
it how do I know
what list the PCB is on.

Any help appreciated.

Best regards,
Mats
 






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