Hi,
I was not at all clear with my post . I thought I could use flock on -unless-
to prevent a race condition. since the code is in between the opening and closing of the
semaphore file. I can not figure out a different way to check if a file exist and write to it ,so it is not possible
for a race condition to accrue as it could using unless.

In reply to Re^2: Race conditions by toniax
in thread Race conditions by toniax

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