[lwip-users] tcp_err and tcp_close

[Nadav Popplewell]

Hi everybody,

 

Please excuse me if I’m asking a silly question, but I’m now clear about the state of the PCB when tcp_err is called.

 

The documentation states: The error callback function does not get the pcb passed to it as a parameter since the pcb may already have been deallocated.

 

What I have a problem with is the may bit,

Is the pcb deallocated or not?

I know from experience that if tcp_err is called because tcp_connect failed then the PCB is deallocated and should NOT be closed by my code.

But is this always the case?

 

Thanks,

 

Nadav