[libvirt] [PATCH 1/3] Allow use of a private dbus bus connection

[Daniel P. Berrange]

On Fri, Oct 11, 2013 at 10:36:37AM -0600, Eric Blake wrote:
> On 10/11/2013 09:19 AM, Daniel P. Berrange wrote:
> > From: "Daniel P. Berrange" <berrange at redhat.com>
> > 
> > The dbus_bus_get() function returns a shared bus connection that
> > all libraries in a process can use. You are forbidden from calling
> > close on this connection though, since you can never know if any
> > other code might be using it.
> 
> Doesn't that mean that multiple calls to dbus_bus_get() return the same
> shared bus when possible rather than creating a new one?  Thus, how
> would you run out of resources if no new bus is created on the second
> call?  Or is it a case of a new bus per set of different arguments,
> where we are consuming lots of shared buses by passing different
> arguments every time?

The issue is that the call is made in the libvirt_lxc process,
and there's one of those per guest. So we have multiple connections.

Daniel
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