Re: [MiNT] [MiNT]operations on open files,was: FreeMiNT 1.18 release

["Helmut Karlowski" <helmut.karlowski@ish.de>]

WongCK, 07.12.2012 02:39:17:

> > As long as process has an open handle to a file, it can access its
> > data, regardless of where, whether or under what name the file resides
> > in.
>
>
> Yes, correct on both paragraph.
>
> Renaming and deletion are operations on the directory. So these  
> directory functions should not be allowed if a file is opened.

Why?

> Currently if process A creates and writes a file A, there is no stopping  
> for for user or another process B to rename or delete that file A.

This is how it should be.

> If file A is deleted while process A is still writing, on the desktop  
> you can see the file A changes in icon to a folder called A.

Might be a bug in the desktop.

> As long as process has an open handle to a file, it can access its data,  
> regardless of where, whether or under what name the file resides in.
> This is also a very true statement... like I mentioned above, even under  
> what when name or no name, it is still able to write to it.
> Amazingly after that, when closes the file, the file is no longer  
> available or no longer seen in the folder.
>
> These are funny behavior.....

When I run this (named tstlk):

sleep 10 >tstf&
ls -l
mv tstf tstf1
ls  -l
rm -f tstf tstf1
ls  -l

wait %1
ls -l

I get this:

insgesamt 1
-rw-r--r-- 1 hk Benutzer  0  7. Dez 10:48 tstf
-rwxrwxrwx 1 hk Benutzer 83  7. Dez 09:37 tstlk
insgesamt 1
-rw-r--r-- 1 hk Benutzer  0  7. Dez 10:48 tstf1
-rwxrwxrwx 1 hk Benutzer 83  7. Dez 09:37 tstlk
insgesamt 1
-rwxrwxrwx 1 hk Benutzer 83  7. Dez 09:37 tstlk
insgesamt 1
-rwxrwxrwx 1 hk Benutzer 83  7. Dez 09:37 tstlk

On cygwin. MiNT does the same. Is it this what you mean?


--
Helmut Karlowski