Re: [lwip-users] recv and sent callbacks usage

[Kieran Mansley]

On Thu, 2011-08-11 at 22:10 +0800, narke wrote:
> 
> Thanks, understood.  If I used the TCP_WRITE_FLAG_COPY option, will
> the situation change?

If you set that flag then lwIP will copy the data so you are free to
modify it when the tcp_write() call returns, without waiting for the
sent callback.  The sent callback will happen at the same time as
before.

Kieran