in reply to Re: Re: Re: Re: Determine if script is already running
in thread Determine if script is already running
Nitrox,
Not that I know of. There are things you can do to reduce the probability that the file will be accidentally deleted - security through obscurity. These things include: Changing the directory where the file resides permissions to 000.
Use non-typical characters in the file name such as a space, asterick, or worse.
Use alarm for the original script to check if the file has been deleted and re-create. * This requires a lot of overhead to try and compete with the race condition.
Use hard links (not symbolic) so that more than one file combined equal your lock file
Not that I know of. There are things you can do to reduce the probability that the file will be accidentally deleted - security through obscurity. These things include:
Even with these suggestions, there is not the 100% guarantee. Sometimes you need decide that the probability is an acceptable risk and move on. If you are totally against checking the process table - semaphores may be the way to go.
Cheers - L~R
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