Re: [lwip-users] lwip_send + MSG_DONTWAIT, blocking

[Florian Ludwig]

Hi Simon,

thank you for your response.

> > i am calling lwip_send with MSG_DONTWAIT flag and at times it blocks on 
> > 
> > err = netconn_write(sock->conn, data, size, write_flags);
> > 
> > What are the reasons this call could block?
> 
> One reason could be using an old version of lwIP. Which version are you using
> Another open question to me is what do you mean by "blocking". Long? Forever?

I am using lwip as included in broadcom's WICED SDK 2.4.1 which states
Lwip version 1.4.0-rc1.  I am currently checking the diff between the
original Lwip and the included one and checking the possibility to move
to a newer version.  Are there known bugs regarding blocking forever in
this version?


Florian