On 03/03/2014 08:58 AM, Daniel P. Berrange wrote: > On Mon, Mar 03, 2014 at 04:46:51PM +0100, Claudio Bley wrote: >> At Fri, 21 Feb 2014 11:01:47 +0000, >> Daniel P. Berrange wrote: >>> >>> ACK, if you also add the virEventUpdateTimeout method >> >> OK, but why should I add it? It's useless (for the user) and unused by >> the wrapping code. I want to keep the JNA library definition clean -- >> e.g. in a later patch I remove all the *UUIDString functions. > > What makes you say it is useless ? The UpdateTimeout method lets you > alter the timeout value for an existing timer, without having to go > through Remove+Add of it. This might seem like a subtle distinction, > but the difference is that the UpdateTimeout is guaranteed not to > fail, where as Remove+Add may fail. In fact, in my recent 'virsh event' additions, I explicitly used code that adds a timer with a -1 initial period (never fires), then use Update to turn it on and back off for each use of the 'event' command, rather than having to worry about Add failing on a per-command basis. The event loop code really does want all three callbacks to exist. -- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org
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