Re: [lwip-users] to free or not to free (pbuf_free in tcp_recv)

[address@hidden]

Am 29.01.2019 um 16:32 schrieb address@hidden:
> > > Hi Simon,
> > >
> > > thanks for your reply.
> > >
> > > In the contrib 2.1.0 is the exact same code snippet.
> > > So my question is still unanswered. How to handle this correctly?
> >
> > Could you point me to it? I can't find it.
> >
> > Regards,
> > Simon
>
> Hi Simon,
>
> It's located in File: contrib-2.1.0\apps\tcpecho_raw\tcpecho_raw.c
> in function tcpecho_raw_recv
> lines 200 to 247

Oh, right. Don't know why I didn't see that.

Well, I guess that code is not really useful. Currently, the recv 
callback is never called with an 'err' other than ERR_OK, but if it 
would, there would most certainly not be a pbuf, so 'p' would be NULL.

So this is probably a bad example and it might assert instead for 'p' to 
be NULL.

Regards,
Simon