Fedora sound nightmare (Pulseaudio)

[Colin Walters]

On Thu, 2008-03-13 at 23:51 +0100, Lennart Poettering wrote:

> The problem here is that /var/run is usually cleaned up during bootup,
> so it's usually fine to just do a kill(pid, 0) to detect whether a
> daemon is already running. However, PA runs as user daemon and thus
> cannot write to /var/run. I thus chose /tmp/ copying X and esd a
> bit. Which is admittedly a bad idea, and also introduces a (minor)
> security issue.

The best thing to do is to use the DBus session bus.  Have pulseaudio
grab a bus name such as org.pulseaudio.SessionDaemon.

Pid files and using /tmp is inherently racy and broken.