Re: [libvirt] [RFC] Events API
On Fri, Sep 19, 2008 at 11:22:24AM +0100, Daniel P. Berrange wrote:
Making a client poll for events is evil because it prevents the CPU
going into low power mode when nothing is happening.
Didn't mean literally poll of course :-)
Exposing a FD severely limits your flexibility, because libvirt then
has no control over when the FD is being monitored - you may well
not want it being select'd on all the time - and/or want to change
the events being monitored for at various times.
Yup, didn't get down to the bottom of your other email. Exposing an
FD is also tricky on Windows too (where you have the joys of
"WSAWaitForMultipleEvents"), so best to avoid it if possible. If
someone (dbus? glib?) has solved this in a platform-independent way
already then so much the better.
Rich.
--
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
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