Cygwin support for btime/birth time? Fwd: [PATCH 0/5] fuse: support birth time

Cygwin support for btime/birth time? Fwd: [PATCH 0/5] fuse: support birth time

[Cedric Blancher]

Good evening!

Does Cygwin support the btime/birth time?

Ced

---------- Forwarded message ---------
From: Miklos Szeredi <mszeredi@redhat.com>
Date: Thu, 10 Aug 2023 at 14:19
Subject: [PATCH 0/5] fuse: support birth time
To: <linux-fsdevel@vger.kernel.org>


Add the infrastructure for btime support in the form of a new STATX
request.

The format of the STATX reply is binary compatible with struct statx on
Linux, but the structure is defined separately in the fuse API for other
OS's.

Currently STATX only supports basic attributes, same as the GETATTR
request, plus btime.  But nothing prevents extending support to other
(present and future) statx fields.

---
Miklos Szeredi (5):
  fuse: handle empty request_mask in statx
  fuse: add STATX request
  fuse: add ATTR_TIMEOUT macro
  fuse: implement statx
  fuse: cache btime

 fs/fuse/dir.c             | 145 +++++++++++++++++++++++++++++++-------
 fs/fuse/fuse_i.h          |  15 +++-
 fs/fuse/inode.c           |  30 ++++++--
 fs/fuse/readdir.c         |   6 +-
 include/uapi/linux/fuse.h |  56 ++++++++++++++-
 5 files changed, 218 insertions(+), 34 deletions(-)

--
2.40.1



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

Re: Cygwin support for btime/birth time?

[Brian Inglis]

On 2024-01-15 12:34, Cedric Blancher via Cygwin wrote:
 > Does Cygwin support the btime/birth time?

$ stat			/bin/cygwin1.dll
   File: /bin/cygwin1.dll
   Size: 2954293         Blocks: 2888       IO Block: 65536  regular file
Device: 60997,17217     Inode: 2533274790402854  Links: 1
...
Access: 2024-01-15 23:25:48.044890100 -0700
Modify: 2023-11-29 05:20:00.000000000 -0700
Change: 2023-12-15 11:11:24.000010700 -0700
  Birth: 2023-12-15 11:11:23.930989200 -0700
$ stat -t		/bin/cygwin1.dll
/bin/cygwin1.dll 2954293 2888 81ed ... ee454341 2533274790402854 1 0 0 
1705387136 1701260400 1702663884 1702663883 65536
$ stat -c %W\ %w	/bin/cygwin1.dll
1702663883 2023-12-15 11:11:23.930989200 -0700
$ grep stat.h /usr/include/sys/stat.h
#include <cygwin/stat.h>
$ grep 'stat\|b.*tim' /usr/include/cygwin/stat.h
/* cygwin/stat.h
struct stat
   timestruc_t   st_birthtim;
#define st_birthtime st_birthtim.tv_sec

As per docs, "#include <sys/stat.h>"

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retirer     but when there is no more to cut
                                 -- Antoine de Saint-Exupéry