Re: Holes in article sequence

[Lars Magne Ingebrigtsen <larsi@gnus.org>]

François Pinard <pinard@iro.umontreal.ca> writes:

> If you fear that it could a bit slow, but are able to keep the old code as
> well as the new, maybe you could let the number of articles decide which
> method to use,

Hey!  Great minds think alike!  :-)

> or else, have some collaboration from the backend to tell
> you when it is better to change methods.  Or maybe both: if the backend has
> nothing to say, use some heuristic on the number of articles.  Of course, if
> the other-way-around is not supported by the backend, just use the old way.

Yes; giving the backend more info might resolve the issue.

(*Time passes while Lars looks at some code.*)

Aha!  nnml already does it the other way around -- it looks at the
actual articles in the group, and then works on the intersection
between the articles it's asked to expire and the ones it knows
exists.  nnfolder, on the other hand, just iterates over the entire
list of expirable articles, which results in a call to
`nnfolder-goto-article' for each article in the list.  That must be
slooow...

-- 
(domestic pets only, the antidote for overdose, milk.)
  larsi@gnus.org * Lars Magne Ingebrigtsen