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In-Reply-To: <31e79a62-2068-4488-9195-b9e7abf716e3@SystematicSW.ab.ca>
Date: Fri, 5 Apr 2024 03:08:00 +0200
Message-ID: <CANH4o6PC5umAfPzs1Br4ivRujXr+7O+UOK56h0T-aXo3RH0U2g@mail.gmail.com>
Subject: Re: Cygwin /usr/bin/stat returns "Birth: -", which value in
 FILE_BASIC_INFORMATION.CreationTime causes that?
To: cygwin@cygwin.com
From: Martin Wege via Cygwin <cygwin@cygwin.com>
Reply-To: Martin Wege <martin.l.wege@gmail.com>
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On Fri, Apr 5, 2024 at 2:55 AM Brian Inglis via Cygwin
<cygwin@cygwin.com> wrote:
>
> On 2024-04-04 18:05, Martin Wege via Cygwin wrote:
> > I have problems with debugging, so a quick help would be appreciated,
> > as I cannot figure this out after several hours of digging.
> >
> > Cygwin /usr/bin/stat returns "Birth: -" for some files. Which value
> > must the CreationTime member of FILE_BASIC_INFORMATION have to cause
> > /usr/bin/stat ti return "-"? 0, -1, or something else?
>
> https://git.savannah.gnu.org/cgit/coreutils.git/tree/src/stat.c#n1618
>
> => tv_nsec < 0
>
> https://cygwin.com/git?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/fhandler/disk_file.cc#l414
>
> https://cygwin.com/git/?p=newlib-cygwin.git;a=blob;f=winsup/cygwin/times.cc#l283

Thank you

But how can tv_nsec become negative (tv_nsec < 0)? That can only
happen if BasicInformation.CreationTime.QuadPart is negative, right?

Thanks,
Martin

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