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[OT?] spamoracle concurrency
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Date: 2007-04-13 (06:47)
From: Gabriel Kerneis <gabriel.kerneis@e...>
Subject: Re: [Caml-list] [OT?] spamoracle concurrency
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Le 13 Apr 2007 02:06:04 -0400, Ian Zimmerman <> a
=E9crit :
> I couldn't find a forum specifically for spamoracle :-)
> The question is: does spamoracle do any kind of locking on the
> database? And what kind?  Clearly, if I pipe my mails through
> "spamoracle mark" in my procmail (or maildrop, etc.) configuration,
> spamoracle may run and access the database at completely
> unpredictable times.  Is it safe to do "spamoracle add" while this is
> enabled?  Or do I have to slap a locking scheme on top myself?

After a quick glance at the source code of spamoracle 1.4 (that I used
a few years ago for a school project), I would answer "no" : database
is read from file to memory, and if you do "spamoracle add", it will
update the database (in memory), then dump it back to a (temporary)
file which will eventually being renamed and erase your previous
database. As far as I can see, there is no locking of any kind.
But if you process your mails one by one, there shouldn't be any
problem either ; it depends on your MDA.=20

Gabriel Kerneis

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