lkml.org 
[lkml]   [2000]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRE: NTFS-like streams?
Date
Michael Rothwell wrote:
> > > myfile
> > > and
> > > myfile/resource
> > >
> >
> > hang on, Am I just going mad or does this not seem really sensible
> - i.e. if we
> > allow the existence of an entity that is both a file and a
> directory, it would
> > be a sane generalisation of both HFS's forks and NTFS's streams...?
> > Or. alternatively I could be going mad.... ;)
>
>
> You're not going mad. But files w/named streams are not
> directories. Open a file in vi. Open a directory in vi.
> The latter is meaningless, right? But if you open a file
> with streams in vi, it works.
>

hmm. What I meant was an entity that has both data and directory information
attached (I'm not a file system hacker, so this'll be in abstract terms..). lets
call this entity a dfile for example purposes. say I create a dfile 'rob1'. I
can open it in vi and edit it as if it was a normal file. I can also do 'vi
rob1/teststream' and I'll be creating a new file teststream, that's inside rob1.
If I was going to implement this in a standard unix-filesystem way, I'd have a
special directory entry, but with the 1st inode (or an inode labelled with a
'magic character', say 0x07) pointing to the data. then doing 'vi rob1' would
work as if rob1 was a soft link pointing to the inode with the data.
Thinking about it, it could be pretty icky - it'd be effectively be like the
below (if it was possible)

mkdir("rob1");
creat("rob1/\0x07", <whatever> );
link("rob1/\0x07","rob1"); //would add soft link info to the directory info
..not that I'm saying you would implement it on ext2.. but hopefully that
clarifies what I mean a bit.. hmm...

Rob Taylor


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:58    [from the cache]
©2003-2011 Jasper Spaans