Therefore, when the server is busy, and the semaphore lock fails, the counter file is clobberred by another instance of the prog.

No. The code says: 

flock(SEM, LOCK_EX) || die "Lock failed: $!"

[download]

If a lock fails, the program exits, so it can't clobber.

Abigail

In reply to Re: Mysterious Disapperance of file contents by Abigail-II
in thread Mysterious Disapperance of file contents by Gorby

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