Re: Cygwin sparse file support: Please support fcntl(..., F_FREESP, ...)
Cedric Blancher via Cygwin <[email protected]>
| Newsgroups | gmane.os.cygwin |
|---|---|
| Message-ID | <CALXu0UeH03iz5_pc_OSMZs+xUJ_WzfBr+TGJQriBxWXUYYuESA@mail.gmail.com> |
On Thu, 5 Feb 2026 at 15:34, Corinna Vinschen via Cygwin <[email protected]> wrote: > > On Feb 5 08:41, Cedric Blancher via Cygwin wrote: > > On Thu, 5 Jun 2025 at 09:07, Cedric Blancher <[email protected]> wrote: > > > > > > On Mon, 17 Feb 2025 at 11:07, Corinna Vinschen via Cygwin > > > <[email protected]> wrote: > > > > > > > > On Feb 16 16:27, Sebastian Feld via Cygwin wrote: > > > > > On Sat, Feb 15, 2025 at 4:15 PM Cedric Blancher via Cygwin > > > > > <[email protected]> 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? > > These are equivalent to the fallocate stuff. Just add an #ifdef to > the source. You'll have to do that on Linux anyway. > > If you want this in Cygwin, please consider https://cygwin.com/acronyms/#PTC I'll try my luck with making a patch Ced -- Cedric Blancher <[email protected]> [https://plus.google.com/u/0/+CedricBlancher/] Institute Pasteur -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple