[libvirt] [PATCH 5/8] virsh: Prefer virDomainGetState over virDomainGetInfo
Jiri Denemark
jdenemar at redhat.com
Fri May 6 11:13:05 UTC 2011
On Wed, May 04, 2011 at 17:35:42 -0600, Eric Blake wrote:
> > + bool noGetState; /* virDomainGetState is not supported in
> > + * current connection */
>
> Nice - remembering the failure once, so you don't have to repeat it.
> However, I don't like double negatives; could we instead have:
Yeah, I especially wanted this for virsh list to avoid calling
virDomainGetState over and over even though it is not supported.
> bool useGetInfo /* must use virDomainGetInfo, since virDomainGetState
> failed */
Makes sense.
> > @@ -3063,12 +3068,6 @@ cmdSetmaxmem(vshControl *ctl, const vshCmd *cmd)
> > return false;
> > }
> >
> > - if (virDomainGetInfo(dom, &info) != 0) {
> > - virDomainFree(dom);
> > - vshError(ctl, "%s", _("Unable to verify current MemorySize"));
> > - return false;
> > - }
> > -
>
> This seems like one case where we still want to keep the
> virDomainGetInfo and actually query the guest.
I don't think this is needed since it doesn't really verify anything. It just
checks if virDomainGetInfo fails or not. And even if it did verify something,
it's really a job of virDomainSetMaxMemory or virDomainSetMemoryFlags, virsh
should only check the parameters it got from its user.
Jirka
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