Re: [Xen-devel] [PATCH RFC V2 05/10] libxl_json: introduce parser functions for builtin types

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Wed, Apr 23, 2014 at 11:31:19AM +0100, Ian Campbell wrote:
> On Wed, 2014-04-23 at 11:19 +0100, Wei Liu wrote:
> > On Wed, Apr 23, 2014 at 11:12:54AM +0100, Ian Campbell wrote:
> > > On Wed, 2014-04-23 at 11:01 +0100, Wei Liu wrote:
> > > 
> > > > The aformentioned "calloc" falls into #1 but not this one.
> > > > 
> > > > My comment is a bit confusing. The comment here actually refers to all
> > > > the malloc'ed memory in the loop, which will be freed by
> > > > libxl_cpuid_dispose.
> > > 
> > > You mean when the caller eventually gets rid of the result, or the error
> > > path here does it?
> > > 
> > 
> > The former. Caller will regardlessly call dispose_fn of a type, wouldn't
> > it?
> 
> Hrm, I'm not sure what we expect the caller to do with the output of a
> failed operation. I think I would expect that the failing operation
> would clean up any partial result. Ian?
> 
> It might be worth having a poke around and seeing what other libxl
> functions do under these circumstances.
> 

The way I see it is that in current libxl code, the caller , regardless
of failure or success, will always call TYPE_dispose to clean up.

Wei.

> Ian.

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