Fedora sound nightmare (Pulseaudio)
dcbw at redhat.com
Wed Mar 26 05:26:42 UTC 2008
On Wed, 2008-03-26 at 02:13 +0100, Lennart Poettering wrote:
> On Wed, 26.03.08 12:04, Andrew Bartlett (abartlet at samba.org) wrote:
> > > > The best thing to do is to use the DBus session bus. Have pulseaudio
> > > > grab a bus name such as org.pulseaudio.SessionDaemon.
> > >
> > > Uh? Grab a name for nothing? Also, this would prohibit multiple
> > > instances of PA for different users.
> > Another very useful way to deal with this situation (which is what Samba
> > does) is to take an fcntl lock on the PID file. This will nicely go
> > away with the process, and clearly no other process will grab a lock on
> > a pulse-audio.pid file.
> We already use POSIX locking for making sure that access to the PID
> file is properly serialized.
Seriously; use D-Bus and abstract sockets, and then you can avoid all
the icky, nasty races that are inherent with PID files. PID files need
> Lennart Poettering Red Hat, Inc.
> lennart [at] poettering [dot] net ICQ# 11060553
> http://0pointer.net/lennart/ GnuPG 0x1A015CC4
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