我想知道如何在clojure中获得频道的大小。 我尝试了计数,但它不受支持。 Clojure文档通常很好,但这次我找不到任何关于它的东西。
示例:
(def channel1 (chan 3))
(println(count channel1))
Should be 3 but throws "count not supported on this type: ManyToManyChannel"
答案 0 :(得分:5)
我找到了解决方案。
(.buf (.buf ch)) ;; Get elements in buffer
;; => (:chan :on :elements)
(.count (.buf ch)) ;; Get number of elements in buffer
;; => 3
(.n (.buf ch)) ;; Get size of buffer
;; => 10
(.full? (.buf mychan)) ;; Is buffer full?
;; => false
进一步阅读here