Re: Prevent a process from opening a file more than once

Hi! First, no need to send HTML parts. On Mit, 2011-09-28 at 07:41 +0200, Michael Blizek wrote: [...]

You could create something like this: [...]

Yes, that's the solution. But keep in mind that userspace also have the dup() and dup2() sys-call which duplicate the file descriptor (within the same process) and there is AFAIK no way to even detect that - let alone disallow it. And after a fork(), it's more or less the same (except that the open file descriptors belong to different processes ....). Generally, I wonder why that is even necessary. Bernd -- Bernd Petrovitsch Email : bernd@petrovitsch.priv.at LUGA : http://www.luga.at