For a work-around, I guess unlocking the file in the child process, and then re-issuing the flock() /should/ work, but to be 100% certain, close() and re-open the file in the child process.

Update: Interestingly, on linux the above code outputs 

1
0

[download]

So there the lock seems to be associated with the handle, not the file.

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: Testing if your code successfully flocked by Joost
in thread Testing if your code successfully flocked by dragonchild

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