[pulseaudio-discuss] [PATCH 02/11] pulsecore: srbchannel: Introduce per-client SHM files

[Tanu Kaskinen]

On Sun, 2015-12-27 at 20:34 +0200, Ahmed S. Darwish wrote:
> On Sun, Dec 27, 2015 at 02:10:47PM +0200, Tanu Kaskinen wrote:
> > On Sat, 2015-12-26 at 21:51 +0200, Ahmed S. Darwish wrote:
> > > I've implemented this by vacuuming upon receiving CORK_PLAYBACK_STREAM
> > > or CORK_RECORD_STREAM. Hopefully this is the right approach.
> > 
> > Do you take into account the case where there are two streams and only
> > one of them stops? I think vacuuming should be done only when the state
> > changes from "some streams active" to "no streams active".
> 
> Hmm, my knowledge is still limited in this area. I thought
> there's a one-to-one relation between a per-client connection
> and a stream. 
> 
> After some thinking, I guess this can happen when one client
> creates both a playback stream and a recording one?

A client can have any number of streams over the same connection. For
example, pavucontrol creates many capture streams, since it has many
volume meters.

> > In addition to corking, the active -> not active transition can also
> > happen when the client tears down a stream.
> > 
> 
> PA_COMMAND_FLUSH_{PLAYBACK,RECORDING}`_STREAM?

PA_COMMAND_DELETE_{PLAYBACK,RECORD}_STREAM and
PA_COMMAND_FINISH_UPLOAD_STREAM.

In addition to those, streams may also die when the server kills them.

-- 
Tanu