On Thu, 22 Jul 2004, Daniel Tiefnig wrote:
> I'm currently replacing lsearch lookups in my exim configs by plain
> filenames.
>
> Like this:
>
> | deny message = Administrative prohibition
> | senders = lsearch;/etc/shared/exim/config/reject_sender
>
> becomes:
>
> | deny message = Administrative prohibition
> | senders = /etc/shared/exim/config/reject_sender
>
>
> Are there any advantages/disadvantages of these two strategies?
Once the ability to put in filenames for out-of-line lists was
implemented, the use of lsearch for list lookups became redundant,
except for the effects of lookup caching, and of course the ability to
use lsearch* and lsearch*@ and partial-lsearch.
However, if you use lsearch and it works, you know you can always
convert to cdb or dbm later. If you start using wildcarded items in an
out-of-line file, this becomes impossible.
I doubt that there's any noticeable performance difference.
--
Philip Hazel University of Cambridge Computing Service,
ph10@??? Cambridge, England. Phone: +44 1223 334714.
Get the Exim 4 book: http://www.uit.co.uk/exim-book
