Re: [lwip-users] re assembly problems

[Kieran Mansley]

On Mon, 2010-10-25 at 16:26 +0200, michelcky wrote:
> Unfortunately, the application written with this grafcet runner cannot
> be modified.

If the application can't be modified you either need to find someone who
can modify it to use the sockets API properly or wrap it in some code of
your own that reads from sockets until it has reassembled a message
before passing that to the application.

One possibility is that your application is specifying MSG_WAITALL as a
flag on its recv which will usually (but not always!) wait until the
whole of the buffer supplied is full before returning.  lwIP does not
support that.

Kieran