On 31 July 2015 at 17:18, Marcin Jurczuk <mjurc...@gmail.com> wrote:
>
> Some reading is required to understand your code (never used volatile!)
> but thanks for direction.
> I will try this way.
>

Volatiles were introduced in Clojure 1.7.0, and trade thread-safety for
better performance. I could have used an atom for the cache, but because
I'm locking the function to a single thread anyway, I didn't need the
atomicity.

- James

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