Re: st_ctimespec not implemented?
Re: st_ctimespec not implemented?
- Subject: Re: st_ctimespec not implemented?
- From: Chris <email@hidden>
- Date: Fri, 27 Jun 2008 00:02:52 +1000
On 26/06/2008, at 11:46 PM, Jean-Daniel Dupas wrote:
Le 26 juin 08 à 15:29, Chris a écrit :
I was looking for a way to figure out how long files have been in
the trash, and I was hoping that stat.st_ctimespec would provide
that, seeing as stat(2) says that rename(2) and link(2) will update
the ctime.
However this isn't the case. Renaming files doesn't affect the
ctime. Is this because Darwin doesn't implement ctime, or because
HFS+ doesn't implement it, or am I missing something else?
Or because moving a file on HFS+ is not considere as renaming it ?
On HFS+, the file name is just an other metadata (like ctime) and is
not formely part of the path.
Moving a file in HFS+ is just changing its parent, not its name.
ctime on unix has nothing really to do with the path either, but
rather the inode. Even on HFS, making another link to the file will
update the ctime. In fact that is an old fashioned way of renaming on
unix - link to the new path and unlink the old path (which temporarily
changed the inode link count). Since BSD unix, rename is now done in
the kernel rather than link/unlink, but it is still considered an
event that is supposed to update the ctime.
I guess HFS must have a ctime, since link(2) updates it. So wouldn't
this be considered a bug?
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