Re: what's the correct syntax for new clojure?

[Stephen C. Gilardi]

There's a correct, updated version here: 
http://clojure.org/concurrent_programming

(import '(java.util.concurrent Executors))
(defn test-stm [nitems nthreads niters]
  (let [refs  (map ref (replicate nitems 0))
        pool  (Executors/newFixedThreadPool nthreads)
        tasks (map (fn [t]
                      (fn []
                        (dotimes [n niters]
                          (dosync
                            (doseq [r refs]
                              (alter r + 1 t))))))
                   (range nthreads))]
    (doseq [future (.invokeAll pool tasks)]
      (.get future))
    (.shutdown pool)
    (map deref refs)))

--Steve

On Jan 3, 2009, at 2:58 PM, wubbie wrote:

Hi,

What's the correct syntax for this code -- from clojure manual.
(import '(java.util.concurrent Executors))
(defn test‐stm [nitems nthreads niters]
(let [refs (map ref (replicate nitems 0))
pool (. Executors (newFixedThreadPool nthreads))
tasks (map (fn [t]
(fn []
(dotimes n niters
(dosync
(doseq r refs
(alter r + 1 t))))))
(range nthreads))]
(doseq future (. pool (invokeAll tasks))
(. future (get)))
(. pool (shutdown))
(map deref refs)))
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