Re: Determine if script is already running

[BrowserUk]

This is more a question than an answer.

A few years ago I was developing a system some parts of which ran on HPUX 10.20 servers, and we needed to have (single copy of) a small deamon process that monitored other processes in the system and re-started them if they hung or died. Some of the guys were playing around with flag files (actually, they were using directories) when one of the local hpux experts wandered by for another reason and suggested Sys V semaphores.

This question triggered the memory and I did a scan of CPAN and found IPC::Semaphore.

Is there some reason why you couldn't combine that with Win32::Semaphore or Win32::Mutex to acheive this?

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Examine what is said, not who speaks.

1) When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong.
2) The only way of discovering the limits of the possible is to venture a little way past them into the impossible
3) Any sufficiently advanced technology is indistinguishable from magic.
Arthur C. Clarke.