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Date: Thu, 5 Feb 2026 08:41:00 +0100
Message-ID: <CALXu0Ucvsjrri6Ltie3ytsW_2PRbWLmX3yZE4EypVe0-WFjkeQ@mail.gmail.com>
Subject: Re: Cygwin sparse file support: Please support fcntl(..., F_FREESP,
 ...)
To: cygwin AT cygwin DOT com
From: Cedric Blancher via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Cedric Blancher <cedric DOT blancher AT gmail DOT com>
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On Thu, 5 Jun 2025 at 09:07, Cedric Blancher <cedric DOT blancher AT gmail DOT com> wrote:
>
> On Mon, 17 Feb 2025 at 11:07, Corinna Vinschen via Cygwin
> <cygwin AT cygwin DOT com> wrote:
> >
> > On Feb 16 16:27, Sebastian Feld via Cygwin wrote:
> > > On Sat, Feb 15, 2025 at 4:15 PM Cedric Blancher via Cygwin
> > > <cygwin AT cygwin DOT com> wrote:
> > > >
> > > > Good afternoon!
> > > >
> > > > Could Cygwin 3.6 please support fcntl(...,F_FREESP,...) and
> > > > cntl(...,F_FREESP64,...), as specified in
> > > > https://docs.oracle.com/cd/E19253-01/816-5167/fcntl-2/index.html
> > > >
> > > > Lots of older software from Solaris, SUPER/UX, CrayOS use F_FREESP for
> > >
> > > QNX and AIX support F_ALLOCSP and F_FREESP
> > >
> > > > punching a hole into a file, and IMO it'll be nice if this works for
> > > > Cygwin out of the box.
> > >
> > > +1
> > >
> > > Please also add F_ALLOCSP and F_ALLOCSP64 to allocate space in a file.
> > > Like F_FREESP and F_FREESP64 it takes a struct flock/flock64, so it's
> > > a pretty straightforward API.
> >
> > No, we won't do that. We're not adding any new feature to 3.6 this
> > close to the release.
>
> What about now? Could this be implemented for Cygwin 3.7, please?

Hello?

Ced
-- 
Cedric Blancher <cedric DOT blancher AT gmail DOT com>
[https://plus.google.com/u/0/+CedricBlancher/]
Institute Pasteur

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