Subject: Re: [linux-audio-dev] Jack Callbacks
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Sat Jan 31 2004 - 02:28:56 EET
On Fri, Jan 30, 2004 at 07:18:02 -0500, Dave Robillard wrote:
> On Fri, 2004-01-30 at 19:01, Steve Harris wrote:
> > On Fri, Jan 30, 2004 at 03:35:37 -0500, Dave Robillard wrote:
> > > The Jack API documentation says port_registration_callback is supposed
> > > to be called on port register AND deregister, but it only seems to be
> > > called when a port is registered.
> > >
> > > So essentially, how can an app know when a jack port is deregistered?
> >
> > Youre right, theres a bug. I'l look at fixing it.
> >
> > You might try jack_set_graph_order_callback(), which will detect it often,
> > but not always. I wonder why noones noticed this before.
>
> I did notice that the graph_order_callback was being called, but the
> process of trying to figure out if a port has actually disappeared (or
> something has just been connected) is both really gross and really
> inefficient.
Having looked at it some more I dont think it is a bug - I dont think a
client dosconnecting completely counts as deregistering.
Wether it should or not I dont know. I'm doing some more testing.
- Steve
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