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Mail Archives: cygwin/2013/07/18/04:11:52

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To: cygwin AT cygwin DOT com
From: jojelino <jojelino AT gmail DOT com>
Subject: Re: sqlite defect
Date: Thu, 18 Jul 2013 17:11:10 +0900
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Message-ID: <ks87ur$nle$1@ger.gmane.org>
References: <trinity-fdc5a0b5-6dcf-4fc0-9370-dd32a75fe928-1373654994500 AT 3capp-gmx-bs47>, <51E703FB DOT 1010300 AT etr-usa DOT com> <trinity-1068d666-3dec-43c9-8453-39c7cae3a94c-1374102947415 AT 3capp-gmx-bs33> <51E74AB4 DOT 7010508 AT etr-usa DOT com>
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In-Reply-To: <51E74AB4.7010508@etr-usa.com>

On 2013-07-18 AM 10:53, Warren Young wrote:
> Nothing so simple.  Locking is handled at the OS and/or Cygwin DLL
> level.  The build change between 3.7.16.2 and 3.7.17-3 is that we're now
> relying on new features in the Cygwin DLL to do Windows-style locking by
> default.
>
> Older versions of Cygwin SQLite bypassed the Cygwin DLL entirely for
> this, going straight to the Win32 API, thereby preventing the DLL from
> interposing itself for the "posix" case.
>
Mandatory locking feature of cygwin used in sqlite is broken.
Just build plain sqlite build without the cygport patch that led the 
disaster. unless you have familiar with exotic adventure like finding 
undocumented behavior of windows wasting many man-hours to workaround 
the problem.

-- 
Regards.


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