Yes, indeed Unix v5 (fifth edition from 1974, that is _not_ SysV!),
does allow root to make hard links on directories. But the seventh
edition from 1978 already prohibits it. (sorry, at the moment I don't
have a v6 at hand to test it there... ;-))
Thanks for looking this up.
_
On Mon, Aug 08, 2005 at 08:27:40PM -0400, Richard M. Stallman wrote:
> I'm not an expert on this, but I think it's impossible to create such
> alternate names, since GNU Find uses this fact to detect directories
> with no subdirectories.
>
> Linux seems to refuse to do this even if you
> There's no need to run any program just to know if a directory is
> empty. Emacs has primitives which will tell that directly (e.g.,
> file-attributes) and do that faster.
If directory-files blocks (on a failed NFS server), file-attributes is
pretty likely to block just as well, in which case `
> Timer code normally turns off C-g so that you won't interrupt it
> by accident. (After all, you can't predict when the timer code
> will be running.) If ECB is going to do something potentially
> slow from a timer, it should probably bind inhibit-quit to nil
> around that code, after displaying
A combination of file-attributes (looking at the number of links) and
directory-files should do that, I think.
But...it is using directory-files now, and that is what causes the
problem. The question is how to avoid using using directory-files.
I'm not an expert on this, but I think
Johan Vromans <[EMAIL PROTECTED]> writes:
> GNU Find also has a command line option to defeat this heuristic,
> probably with reason.
Sorry, I have to correct this. I got the information from the manual
page for 'find' under the assumption that a GNU/Linux system would
have GNU find. However, it
Eli Zaretskii <[EMAIL PROTECTED]> writes:
> I'm not an expert on this, but I think it's impossible to create such
> alternate names, since GNU Find uses this fact to detect directories
> with no subdirectories.
GNU Find also has a command line option to defeat this heuristic,
probably with reason
> From: "Richard M. Stallman" <[EMAIL PROTECTED]>
> CC: [EMAIL PROTECTED], emacs-devel@gnu.org
> Date: Sun, 07 Aug 2005 13:15:29 -0400
>
> There's no need to run any program just to know if a directory is
> empty. Emacs has primitives which will tell that directly (e.g.,
> file-attrib
There's no need to run any program just to know if a directory is
empty. Emacs has primitives which will tell that directly (e.g.,
file-attributes) and do that faster.
How do you determine that from file-attributes? It is not obvious.
You might try to do it from the number of hard li
> From: "Richard M. Stallman" <[EMAIL PROTECTED]>
> Date: Fri, 05 Aug 2005 16:38:14 -0400
> Cc: emacs-devel@gnu.org
>
> Alternatively, it could use start-process to run ls asychronously
> as a way to find out whether the directory is empty.
There's no need to run any program just to know if a dir
Timer code normally turns off C-g so that you won't interrupt it
by accident. (After all, you can't predict when the timer code
will be running.) If ECB is going to do something potentially
slow from a timer, it should probably bind inhibit-quit to nil
around that code, after displaying a message
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