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Date: Mon, 17 Feb 2025 11:02:49 +0100
To: cygwin@cygwin.com
Subject: Re: Cygwin sparse file support: Please support fcntl(..., F_FREESP,
 ...)
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From: Corinna Vinschen via Cygwin <cygwin@cygwin.com>
Reply-To: cygwin@cygwin.com
Cc: Corinna Vinschen <corinna-cygwin@cygwin.com>
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On Feb 16 16:27, Sebastian Feld via Cygwin wrote:
> On Sat, Feb 15, 2025 at 4:15 PM Cedric Blancher via Cygwin
> <cygwin@cygwin.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.

We'll open up the main branch for new features after the 3.6 release
and patches are welcome.


Corinna

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