Re: Unixware Patch (Was: Re: Beta2 Tag'd and Bundled ...)

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От Bruce Momjian
Тема Re: Unixware Patch (Was: Re: Beta2 Tag'd and Bundled ...)
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Msg-id 200308300417.h7U4Hf822789@candle.pha.pa.us
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Ответ на Re: Unixware Patch (Was: Re: Beta2 Tag'd and Bundled ...)  (Larry Rosenman <ler@lerctr.org>)
Ответы Re: Unixware Patch (Was: Re: Beta2 Tag'd and Bundled ...)  ("Marc G. Fournier" <scrappy@hub.org>)
Re: Unixware Patch (Was: Re: Beta2 Tag'd and Bundled ...)  (Larry Rosenman <ler@lerctr.org>)
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Larry Rosenman wrote:
> 
> 
> --On Saturday, August 30, 2003 01:09:54 -0300 "Marc G. Fournier" 
> <scrappy@hub.org> wrote:
> 
> 
> >
> > 'K, but why the change to NEEDS_REENTRANT_FUNC_NAMES in the first place?
> >
> > The thing that has me most confused here is that the end result is the
> > same with or without the patch, from what I can tell ... the right side of
> > the && will always resolve to TRUE, before or after the patch ... no?
> I want to conditionalize ONLY getpwuid_r, and not strerror_r and 
> gethostbyname_r.
> 
> So, I changed the NEED_REENTRANT_FUNC_NAMES to no, or undefined in the
> template, and need a configure check to set HAVE_GETPWUID_R, so we will
> use getpwuid_r in the ENABLE_THREADS case.
> 
> UnixWare does NOT have strerror_r nor does it have gethostbyname_r, and the
> libc versions are reentrant in libc, for those 2.  We need to use 
> getpwuid_r for
> threaded apps.
> 
> Does this clarify things?

Yes, and that is the complex part because _some_ non-*_r functions are
thread-safe, and some are not.  I have to determine if we have other
such platforms before I figure out how to fix it in the cleanest way.

In most platforms that are like this, I think, they have all the *_r
functions even if all of them are not required.

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073
 


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