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Re: [Xen-devel] [PATCH RFC v1 2/4] xl for rt scheduler

Hi Dario,

2014-07-11 11:07 GMT-04:00 Dario Faggioli <dario.faggioli@xxxxxxxxxx>:
On ven, 2014-07-11 at 10:59 -0400, Meng Xu wrote:

> Â Â Â Â > + Â Âlibxl_domain_sched_params_init(&scinfo);
> Â Â Â Â > + Â Ârc = sched_domain_get(LIBXL_SCHEDULER_RT, domid,
> Â Â Â Â &scinfo);
> Â Â Â Â > + Â Âif (rc)
> Â Â Â Â > + Â Â Â Âreturn rc;
> Â Â Â Â > +

> âThank you very much for pasting the rules here! I really appreciate
> it. However, I didn't quite get why it violate the libxl type paradigm
> and how I should correct it. (Sorry. :-()â
<<The user must always calls "dispose" exactly once afterwards, to clean
up, regardless of whether operations on this object succeeded or

While, above, you're exiting, if rc is true, without calling dispose.

It depens a lot on the function, but what you usually do, is grouping
the calls to the various dispose under a label (typically 'out:') and
goto there to exit.

Look around, both in xl and libxl, you'll find plenty of examples of

âNow I got it. Thank you very much! I will modify it. :-)

Best regards,


Meng Xu
PhD Student in Computer and Information Science
University of Pennsylvania
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