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freetds - RE: [freetds] dblib and thread safety

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  • From: "ZIGLIO, Frediano, VF-IT" <Frediano.Ziglio AT vodafone.com>
  • To: "FreeTDS Development Group" <freetds AT lists.ibiblio.org>
  • Subject: RE: [freetds] dblib and thread safety
  • Date: Tue, 14 Sep 2004 16:05:38 +0200

>
> Hi,
>
> I've been encountering some intermittent misbehaviour from dblib. In
> particular, it often occurs during system startup when performing a
> tdsdbopen().
>
> I've had a look at the code and I can not see how it could possibly
> be thread safe. In particular, due to the concurrent access that
> occurs within tdsdbopen() and a number of other functions, corruption
> of g_dblib_ctx is almost guaranteed.
>
> Will there be any objection from the maintainers should I
> submit a patch
> that puts mutexes (wrapped in #ifdefs) inside dblib? If not, is there
> a pre-processor variable already in use for thread-safety
> that I should
> use?
>
> Thanks.

I think you are right. Do you know a small and portable library to do
this job (using mutex) ??

freddy77




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