Re: [Xen-devel] [PATCH RFC 1/8] golang/xenlight: Create stub package

[Ronald Rojas <ronladred@xxxxxxxxx>]

On Wed, Jan 25, 2017 at 05:16:47PM +0000, George Dunlap wrote:
> On Mon, Jan 23, 2017 at 4:43 PM, Ronald Rojas <ronladred@xxxxxxxxx> wrote:
> 
> > +func (Ctx *Context) Open() (err error) {
> > +       if Ctx.ctx != nil {
> > +               return
> > +       }
> > +
> > +       ret := C.libxl_ctx_alloc(unsafe.Pointer(&Ctx.ctx), C.LIBXL_VERSION, 
> > 0, nil)
> 
> Just discovered there's a bug here (in code that I wrote obviously) --
> you can't pass the last argument as nil; you have to include a logger.
> Otherwise if you ever get an error you'll get a NULL dereference. :-)
> 
> I think the fastest thing to do to begin with would be to create a
> "null" logger that just throws away all the data.  Then at some point
> (possibly not in your internship) someone can think about what a
> proper logging interface looks like.

Makes sense. I can modify the code so that it creates an instance of 
the xenlogger and prints it to /dev/null. I will add this in the next
version of the patch.
> 
>  -George

Thanks,
Ronald

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