While all of the other posters are correct, there is one thing that I'd like to mention. Locks are advisory in much the same way that stoplights are advisory. Nothing keeps someone from ignoring a stoplight and plowing in to an intersection. Similarly, if you have a process that pays no heed to locks, you'll be in for a nasty surprise if you were relying on the locks to protect your data.

thor

In reply to Re: Order of flock and open by thor
in thread Order of flock and open by svsingh

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