Re: New patch for server sockets and datagram (UDP) support.

[Kim F. Storm]

"Stefan Monnier" <monnier+gnu/address@hidden> writes:

> > > > The following special call returns t iff a given KEY VALUE
> > > > pair is supported on this system:
> > > >   (make-network-process :feature KEY VALUE)  */)
> > > 
> > > Hmm... this looks a bit strange.  Can you give some examples?
> > > Especially, what do you supply as VALUE?
> > > 
> > 
> > It simply tests whether using KEY VALUE as arguments to make-network-stream
> > is supported, e.g. :datagram t, :nowait t, :family 'local.
> 
> I suggest to use `subfeatures' for that:
> 
>    (provide 'network '(:datagram :nowait :family ...))

I don't want to invent something new here if it isn't needed, but the
problem here is that the proper setings here are determined at
compile-time, so it's not just a question of putting a (provide...)
line somewhere in a lisp file -- since that information is not
available to lisp [that's why I provided the :feature interface].

> 
> so you can then check
> 
>    (featurep 'network :datagram)
> 
But how do you test for availability of :family 'local ?

-- 
Kim F. Storm <address@hidden> http://www.cua.dk