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From: Simon Josefsson <sj@extundo.com>
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Subject: Re: Greg's Perennial Plea For an Asynchronous Backend Interface
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Steinar Bang <sb@metis.no> writes:

> > Doing it properly requires the new interface between backends and
> > Gnus. And it require Gnus be aware of when it's using the
> > asynchronous interface to avoid conflicts. But it would be much more
> > powerful than my kludge.
> 
> Is this basically the same thing that nnimap needs for its performance 
> enhancements?

Sort of, primarily nnimap need a more fine-grained backend interface
to enable Gnus to take advantage of IMAP features, and that would
speed things up considerably.

An asynchronous backend interface would probably make things "feel"
fast enough, though, because it wouldn't lock up emacs while the
backends "thinks".

If the more fine-grained backend interface happen (which is lots of
work, I think), it might as well be asynchronous too.