[LAD] [Jack-Devel] jackd/jackdbus : D-Bus or not D-Bus...

[drew Roberts]

On Tuesday 19 May 2009 05:44:13 Stéphane Letz wrote:
> Le 19 mai 09 à 11:30, Fons Adriaensen a écrit :
> > On Tue, May 19, 2009 at 10:38:24AM +0200, Stéphane Letz wrote:
> >> 5) Another idea would be improve the "choice of auto-start
> >> strategy" by
> >> providing a runtime choice for that:  a way for the user to select
> >> between
> >> the "classic", "D-Bus", "OSC", strategy once globally for a given
> >> working
> >> session...
> >
> > I will be writing an OSC layer (on top of the existing interfaces)
> > because I badly need a soluting for scriptable (i.e. non-interactive)
> > remote control of jackd.
> >
> > It will be non-invasive and just use the existing jackd/libjack
> > without modifying anything. There will be no such thing as an
> > 'OSC autostart strategy'.
> >
> > IMHO dbus could be just the same. This would mean that
> > any advantages it may bring will be there only if app
> > writers start using it *explicitly* by directly calling
> > dbus instead of a jackd/libjack C API function.
> >
> > Which just means that dbus will have to prove its value
> > in the market instead of being forced onto everyone,
> > and that is a Good Thing (TM).
> >
> > Support for accessing dbus could even be integrated in
> > libjack (or some new library) as long as it just adds
> > ew calls and does not modify the action of any existing
> > C API call.
> >
> > Ciao,
> >
> > --
> > FA
>
> It seems you really don't want to see that using this
> "jack_client_open does a fork+exec call to launch jackd with the ./
> jackdrc file" has been completely *hard coded* in libjack from day
> one!  And is a really strong constraint for any possible new way of
> controlling the server.
>
> The discussion is now: do we keep this "hard coded thing in libjack"
> or do we try to relax it a bit ?

Doesn't my idea of having the new way check for the old way on start and 
translate between the two solve this issue? (And write the old way file on 
new way changes.

Also wouldn't having a commandline switch:

jackd --way new|old|dbus|osc|classic|whatever

do the job?

(speaking from vast fields of ignorance here I know.)
>
> Stephane

all the best,

drew