Re: embedded list

On Thursday, October 11, 2012 03:27:17 PM Andres Freund wrote:
> On Thursday, October 11, 2012 03:23:12 PM Alvaro Herrera wrote:
> > Alvaro Herrera escribió:
> > > I also included two new functions in that patch, dlisti_push_head and
> > > dlisti_push_tail. These functions are identical to dlist_push_head and
> > > dlist_push_tail, except that they do not accept non-circular lists.
> > > What this means is that callers that find the non-circularity
> > > acceptable can use the regular version, and will run dlist_init() on
> > > demand; callers that want the super-tight code can use the other
> > > version. I didn't bother with a new dlist_is_empty.
> >
> > Is there any more input on this? At this point I would recommend
> > committing this patch _without_ these dlisti functions, i.e. we will
> > only have the functions that check for NULL-initialized dlists. We can
> > later discuss whether to include them or not (it would be a much smaller
> > patch and would not affect the existing functionality in any way.)
>
> I can live with that. I didn't have a chance to look at the newest revision
> yet, will do that after I finish my first pass through foreign key locks.
I looked at and I am happy enough ;)

One thing:
I think you forgot to adjust dlist_reverse_foreach to the NULL list header.

Thanks!

Andres
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Andres Freund http://www.2ndQuadrant.com/
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