> I understand that lazy-seq caches the computed result as each element is > read. However, how can is this made to be thread-safe?
The caching is done within a synchronized method as each element's value is realized. There is an instance of clojure.lang.LazySeq that manages each seq element's value. The value is computed within a call to clojure.lang.LazySeq::sval which is synchronized. After the first time it's computed, the value is cached (in the sv member) and subsequent calls to sval return the cached value. https://github.com/clojure/clojure/blob/master/src/jvm/clojure/lang/LazySeq.java#L37 http://docs.oracle.com/javase/tutorial/essential/concurrency/syncmeth.html --Steve -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
