Christian Stalp wrote: > Hello together, > I have a question regarding process-control. I want to write a perl > script which must not running in more than one process in the same > time. The script creates a directory copys a zip-file in it, unpack > it and reads every file in this package. However, the files must not > get opened by another process.
Are you extracting the files just to read through them? Why not just extract to a pipe and read the data from that? Then you can avoid creating the files in the first place? > How can I make sure, that my perl-scipt runs only in one process This is typically done by acquiring a lock on a file (usually a "pid" file that contains the process id number). There's a Proc::PID::File module on CPAN that looks pretty neat, though I haven't used it personally. > , or > eaysier, is there a function "flock" which blocks a whole directory > and not only a single file? Not really a way to do that with a lock, and locks are "advisory" only, depending on your O/S. You might want to play with directory permissions... -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
