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Re: [lwip-users] lwip_send + MSG_DONTWAIT, blocking
From: |
Florian Ludwig |
Subject: |
Re: [lwip-users] lwip_send + MSG_DONTWAIT, blocking |
Date: |
Wed, 18 Mar 2015 11:00:08 +0100 |
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