test if a file is locked?
mk at net.mail.penguinista
Mon Dec 22 12:42:46 CET 2003
> I can lock a file using the following snippet:
> import fcntl
> If some other script tries to open 'flock.txt', it'll wait until the
> file is unlocked/closed.
This is not true on my system (Linux-2.4.23/glibc-2.3.2), after locking the
file Ican still open it with another script or program (like "cat").
The other script blocks only when I try to lock the file again.
> My question is, I'd like to tell a script to quit *immediately* if it
> cannot open the file, or, if it knows the file is locked.
it will throw an exception if the file is locked:
IOError: [Errno 11] Resource temporarily unavailable
Дамјан (jabberID:damjan at bagra.net.mk)
Intel: where Quality is job number 0.9998782345!
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