16 May
2019
16 May
'19
7:35 p.m.
On Thu, 16 May 2019 16:04:36 +0300
Serhiy Storchaka
16.05.19 14:33, Antoine Pitrou пише:
On Thu, 16 May 2019 13:05:48 +0300 Serhiy Storchaka
wrote: 16.05.19 11:28, Barry Scott пише:
To replace one symlink with another atomically is possible by using rename() or renameat() something like:
os.symlink( src, tmp_symlink ) os.rename( tmp_symlink, dst )
Somebody can replace tmp_symlink between os.symlink() and os.rename().
Not if tmp_symlink is created in a directory with strict permissions, I guess.
But in such case we do not need complex games with a temporary symlink. Just use os.symlink() and os.unlink() if needed.
I was talking about the *tmp_symlink*, not *dst*.