From: Richard Stallman <rms@gnu.org>
Cc: emacs-devel@gnu.org
Subject: Re: MAIL_USE_FLOCK and Debian.
Date: Tue, 18 Feb 2003 08:59:44 -0500 [thread overview]
Message-ID: <E18l8Hg-0001uV-00@fencepost.gnu.org> (raw)
In-Reply-To: <87ptpqhqjp.fsf@raven.i.defaultvalue.org> (message from Rob Browning on Mon, 17 Feb 2003 09:31:38 -0600)
OK. After thinking about it a bit more, I agree. You're absolutely
right that a run-time setting would be better. However, part of the
problem is that this policy is currently handled by the external
movemail program, so we'd have to figue out how to allow runtime
customization. I would guess perhaps an /etc file, or command-line
arguments, though the latter probably wouldn't make it easy enough to
provide site-wide defaults...
A command line argument would let Emacs control the decision, but I
think that is undesirable. People might use movemail from other
programs too. We don't want to make it easy to use movemail wrong.
So movemail itself should figure out which way to do the job.
I think that the existence of some file somewhere in the file system
is the right way to control this.
I think so, but with regard to the implementation. I think one of the
complicating factors is that the actual policies can be reasonably
complex, i.e. do you use flock and something else, flock first or
last, etc?
I thought we had just three alternatives to consider: liblockfile, and
the two alternatives now implemented in movemail. Now you seem to be
proposing additional alternatives. I am not sure exactly what they are;
it sounds like you propose that movemail do more than one of those three.
Why do you propose that?
- I'm not sure if you know, but for Debian at least, the locking
strategy embodied in liblockfile is also a well-defined algorithm,
and policy doesn't actually require programs to use liblockfile
(as far as I recall), but just requires them to follow the
algorithm specified, so it would be possible to DTRT straight from
emacs.
This does not affect the issue as far as I can see.
next prev parent reply other threads:[~2003-02-18 13:59 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-15 7:02 MAIL_USE_FLOCK and Debian Rob Browning
2003-02-15 19:11 ` Richard Stallman
2003-02-15 20:26 ` Rob Browning
2003-02-17 7:20 ` Richard Stallman
2003-02-17 15:31 ` Rob Browning
2003-02-17 21:20 ` Florian Weimer
2003-02-17 21:32 ` Rob Browning
2003-02-17 21:41 ` Florian Weimer
2003-02-17 21:56 ` Alan Shutko
2003-02-17 22:20 ` Rob Browning
2003-02-18 16:03 ` Rob Browning
2003-02-18 13:59 ` Richard Stallman [this message]
2003-02-18 15:58 ` Rob Browning
2003-02-19 7:16 ` Richard Stallman
2003-02-19 17:11 ` Rob Browning
2003-02-19 18:03 ` David Masterson
2003-02-20 18:21 ` Richard Stallman
2003-02-20 19:22 ` Rob Browning
2003-02-21 21:44 ` Richard Stallman
2003-02-24 2:58 ` Rob Browning
2003-02-28 8:14 ` Michael Sperber [Mr. Preprocessor]
2003-03-01 21:44 ` Richard Stallman
2003-03-02 10:06 ` Michael Sperber [Mr. Preprocessor]
2003-03-03 18:58 ` Richard Stallman
2003-03-04 8:30 ` Michael Sperber [Mr. Preprocessor]
2003-03-05 20:46 ` Richard Stallman
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