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Posted by Webrickco on 07/25/07 15:00
On Jul 25, 3:46 pm, Rik <luiheidsgoe...@hotmail.com> wrote:
> On Wed, 25 Jul 2007 16:25:13 +0200, Webrickco <webric...@gmail.com> wrote:
> > A race condition?
>
> You write in a file that may be opened by another instance of the same
> counter[*]. At least implement something like flock() so you make sure
> your own scipt doesn't bug.
>
> [*]
> Chronological:
> 1. First request
> 2. Second request
> 3. 1.Opening for writing.
> 4. 2.Opening for writing.
> 5. 1.Writing to file.
> 6. 2.Writing to file.
>
> What do you think will happen? It all depends on being written to & closed
> before opening it again in another instance.
>
> --
> Rik Wasmus
This is a simple technical solution, that certainly would work for
most of the sites. What are the odds 2 different users open the page
at the exact same time? and if so, what would be the result? Miss one
count! In professional IT, you have to measure the odds against the
cost. Not everything is implementable regarding the costs. Consider
this a will-serve-in-most-case solution.
But the solution is always discutable. I thank you for your
contribution!
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