Nigel King nigel.king at orthogonsystems.com
Wed Sep 29 13:38:06 EDT 2004

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Hi,
I have (my son has!) implemented protection against multiple instances 
causing havoc by creating a directory. This fails if it exists and thus 
in a single instruction one gets both the acquire and the test.

Windows has it's mutex which solves the problem. Is there any better 
version for UNIX.

Thanks

Nigel King

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