From: Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>
To: cygwin@cygwin.com
Subject: Re: how about little improve "stat" function for virtual cloned drisk on windows ?
Date: Thu, 29 Apr 2021 10:04:35 -0600 [thread overview]
Message-ID: <2f399a0f-6715-1e27-223c-397d7b0d590f@SystematicSw.ab.ca> (raw)
In-Reply-To: <CAHO0KOUQbcFnCsnjETPH5tsGwG8-rUn80KBBt2RkyWr=J9mPGg@mail.gmail.com>
On 2021-04-29 09:29, dreverser--- via Cygwin wrote:
> hello, i have issue for using stat for virtual cloned disk on windows/vmware
> st_dev give me the the same serial number
> and diff util doest work, because thinking path the same and there are
> no files for diff
>
> iam propose improve winsup\cygwin\mount.c
> by add disk letter to st_dev
>
> at this line
> https://github.com/cygwin/cygwin/blob/367c1ae16185e7a81aea5bcc2388e4a7a473c92e/winsup/cygwin/mount.cc#L266
>
> sernum = ffvi_buf.ffvi.VolumeSerialNumber;
>
> after add disk letter to sernum
> stat will give more unique st_dev
> and as less diff will work
To provide more information, please run and post results of commands below: e.g.
$ head /proc/version
CYGWIN_NT-10.0-19042 version 3.2.0-340.x86_64 (corinna@calimero) (gcc version
9.3.0 20200312 (Fedora Cygwin 9.3.0-1) (GCC) ) 2021-03-29 08:42 UTC
$ stat /proc/cygdrive/?
File: /proc/cygdrive/c
Size: 0 Blocks: 8 IO Block: 65536 directory
Device: ee454341h/3997516609d Inode: 1407374883553285 Links: 1
Access: (0050/d---r-x---) Uid: (328384/NT SERVICE+TrustedInstaller) Gid:
(328384/NT SERVICE+TrustedInstaller)
Access: 2021-04-29 10:00:59.850885200 -0600
Modify: 2021-04-24 21:37:53.292164400 -0600
Change: 2021-04-24 21:37:53.292164400 -0600
Birth: 2019-03-18 22:37:21.986161300 -0600
File: /proc/cygdrive/d
Size: 0 Blocks: 8 IO Block: 65536 directory
Device: 6b8d438h/112776248d Inode: 1407374883553285 Links: 1
Access: (0050/d---r-x---) Uid: (328384/NT SERVICE+TrustedInstaller) Gid:
(328384/NT SERVICE+TrustedInstaller)
Access: 2021-04-24 15:14:10.005696600 -0600
Modify: 2021-04-24 15:14:10.005696600 -0600
Change: 2021-04-24 15:14:10.005696600 -0600
Birth: 2009-07-13 20:38:56.526817600 -0600
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
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next prev parent reply other threads:[~2021-04-29 16:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 15:29 dreverser
2021-04-29 16:04 ` Brian Inglis [this message]
2021-04-29 16:07 ` Corinna Vinschen
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