Re: [Chicken-users] Idea feedback

[Elf]

hm.  i realised i didnt respond to your original question.  iirc, shawn
rutelege proposed something about a dbus egg a few months ago.  i dont know
what became of it.

another possibility, if youre dealing with deeply nested structures:
install chicken on the servers as well.  use the embedded chicken interface
from c (if you need to keep it in c) to handle the chicken messages and
translate them into something more easily understandable.

-elf

On Thu, 14 Feb 2008, john wrote:

> Hi Elf, thanks for the quick response...
>
> a) The protocol might not be simple it may be complex nested
> structures. I don't want to write my own parser in C. There is a C
> s-expr library out there though.
> b) Not sure what this is?
> c) XML is evil :) I have tried to compress XML without great results.
> Assume each bit counts in this application.
>
> On 14/02/2008, Elf <address@hidden> wrote:
> >  quick question, which may be a really stupid question cause im not sure
> >  im understanding properly...
> >
> >  why not do one of the following:
> >     a) simple string-encoded sexprs to the mobile client, some kind of
> >        well-formed message to the server? (ie, different format based on
> >        communication direction, playing to both sides strong points)
> >     b) define a simple DS message format or lang and use this?
> >     c) pass around xml?
> >
> >  -elf
> >
> >
> >  On Thu, 14 Feb 2008, john wrote:
> >
> > > I have not had a chance to properly think this idea through yet but
> > > thought I would throw it out to the lions (chickens) for some
> > > feedback.
> > >
> > > In a mobile client application I am developing I currently embed
> > > Chicken into Gtk+. The client communicates with 2 servers. One
> > > connection uses plain s-expressions the other uses binary encoded
> > > s-expressions. This works fine but does add complication to the
> > > client.
> > >
> > > In the embedded Linux world D-Bus seems a popular inter-process
> > > communication tool (http://en.wikipedia.org/wiki/D-Bus).
> > >
> > > So I was wondering if it is feasible to develop some kind of
> > > s-expression based daemon which talks D-Bus. The Gtk+ client(s) can
> > > then talk dbus to send/receive data. The s-expression daemon mux's the
> > > communication to external TCP servers using s-expression based
> > > protocols. The client will then not need to have Chicken embedded and
> > > can use the in-built D-Bus features of glib. Ideally the s-expression
> > > mux'er could be configured to switch between binary and text encoding
> > > depending on requirements. Or even perhaps throttle traffic or try and
> > > limit costs over an expensive mobile link.
> > >
> > > So any feedback on the idea appreciated,
> > >
> > > John.
> > >
> > >
> >
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> > > http://lists.nongnu.org/mailman/listinfo/chicken-users
> > >