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<link rel="stylesheet" href="../../coverage.css"/> <title> clj_activitypub/internal/thread_cache.clj </title>
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<span class="covered" title="1 out of 1 forms covered">
001 (ns clj-activitypub.internal.thread-cache
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<span class="not-tracked" title="0 out of 0 forms covered">
002 "copied from [Jahfer's clj-activitypub library](https://github.com/jahfer/clj-activitypub).
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003 If and when Jahfer issues a release of that library, this directory will be deleted and a
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<span class="not-tracked" title="0 out of 0 forms covered">
004 dependency on that library will be added to the project.")
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005
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006 (defn- current-time
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007 "Returns current time using UNIX epoch."
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008 []
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<span class="covered" title="1 out of 1 forms covered">
009 (System/currentTimeMillis))
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010
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<span class="covered" title="1 out of 1 forms covered">
011 (defn- update-read-at [store k v]
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<span class="covered" title="2 out of 2 forms covered">
012 (dosync
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<span class="covered" title="5 out of 5 forms covered">
013 (commute store assoc k
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<span class="covered" title="7 out of 7 forms covered">
014 (merge v {:read-at (current-time)}))))
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015
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016 (defn make
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017 "Creates a thread-local cache."
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<span class="covered" title="3 out of 3 forms covered">
018 ([] (make false))
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019 ([cache-if-nil]
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<span class="covered" title="4 out of 4 forms covered">
020 (let [store (ref {})]
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<span class="covered" title="1 out of 1 forms covered">
021 (letfn [(cache-kv ([k v]
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<span class="covered" title="2 out of 2 forms covered">
022 (dosync
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<span class="covered" title="5 out of 5 forms covered">
023 (commute store assoc k
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<span class="covered" title="6 out of 6 forms covered">
024 {:write-at (current-time)
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025 :read-at (current-time)
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<span class="covered" title="1 out of 1 forms covered">
026 :value v})
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027 v)))
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028 (get-v ([k]
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<span class="covered" title="11 out of 11 forms covered">
029 (when-let [data (get @store k)]
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<span class="covered" title="5 out of 5 forms covered">
030 (update-read-at store k data)
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<span class="covered" title="3 out of 3 forms covered">
031 (:value data)))
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<span class="not-tracked" title="0 out of 0 forms covered">
032 ([k compute-fn]
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<span class="covered" title="4 out of 4 forms covered">
033 (let [storage @store]
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<span class="covered" title="5 out of 5 forms covered">
034 (if (contains? storage k)
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<span class="covered" title="3 out of 3 forms covered">
035 (get-v k)
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<span class="covered" title="3 out of 3 forms covered">
036 (let [v (compute-fn)]
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<span class="partial" title="11 out of 12 forms covered">
037 (when (or (not (nil? v)) cache-if-nil)
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<span class="covered" title="4 out of 4 forms covered">
038 (cache-kv k v)
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<span class="covered" title="3 out of 3 forms covered">
039 (get-v k)))))))
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<span class="not-tracked" title="0 out of 0 forms covered">
040 (lru ([]
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041 (mapv
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<span class="not-covered" title="0 out of 6 forms covered">
042 (fn [[k v]] [k (:value v)])
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043 (sort-by #(-> % val :read-at) < @store))))]
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<span class="covered" title="6 out of 6 forms covered">
044 {:cache-kv cache-kv
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<span class="covered" title="1 out of 1 forms covered">
045 :get-v get-v
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<span class="covered" title="1 out of 1 forms covered">
046 :cache-if-nil cache-if-nil
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<span class="covered" title="1 out of 1 forms covered">
047 :lru lru}))))
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