Re: [PATCH] Add a new lstat implementation based on Win32 API, and make stat use that implementation too.

From: David Kastrup <dak@gnu.org>
Date: Sep 2, 2007, 17:58 UTC
Message-ID: <85sl5xoso1.fsf@lola.goethe.zz>
In-Reply-To: <Pine.LNX.4.64.0709021843270.28586@racer.site>

Johannes Schindelin <Johannes.Schindelin@gmx.de> writes:

Show 11 quoted lines

> Hi,
>
> On Sun, 2 Sep 2007, Marius Storm-Olsen wrote:
>
>> The conversion of the FileTime to unix time_t is far more heavy.
>
> Really?  If so, we might consider storing FILETIME->dwHightDateTime and 
> ->dwLowDateTime in the index.
>
> But I doubt it.  AFAICT _getting_ at the stat data is the expensive thing 
> in Windows, not a 64-bit addition, subtraction and division.

64-bit division conceivably could be somewhat expensive, but it sounds like it should not be much compared to the cost of a system call. What is the code doing that division?

-- 
David Kastrup, Kriemhildstr. 15, 44793 Bochum

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