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There is no way that File::Touch is thread-safe(*).
(*)I don't think the OP actually means "thread-safe" either, but that may become clearer in time.
With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
In reply to Re^2: Thread safe equivalent of LINUX touch command