by the second future, I mean an instance of http://docs.oracle.com/javase/6/docs/api/java/util/concurrent/Future.html , which just has to conform to the interface, and doesn't actually have to execute on a different thread. Clojure's 'future' function returns an instance of one of these that uses the unbounded agent thread-pool, but you would be free to return one using reify or something.
https://github.com/clojure/clojure/blob/master/src/clj/clojure/core.clj#L6320 On Thu, May 30, 2013 at 5:14 AM, Gary Trakhman <gary.trakh...@gmail.com>wrote: > Maybe an easy solution: wrap the first future in another future that > blocking-derefs, then performs your extra computation? Do an extra > 'realized?' check for the optimization you mention. That would still > consume threads in the case that it's not realized, but I think it gets you > what you want. > > > On Thu, May 30, 2013 at 5:09 AM, Mark Engelberg > <mark.engelb...@gmail.com>wrote: > >> According to this article, Clojure does not yet have this facility: >> http://java.dzone.com/articles/promises-and-futures-clojure >> >> This is something that is being worked on and discussed, though: >> http://dev.clojure.org/display/design/Promises >> https://groups.google.com/forum/#!topic/clojure-dev/7BKQi9nWwAw/discussion >> http://dev.clojure.org/display/design/Async+blocks >> >> I've been hearing a lot about Tellman's lamina library as a rich Clojure >> toolset for working with asynchronicity. I haven't had a need for it >> myself, but you might want to check it out and see if it has relevance to >> what you want to do. >> >> -- >> -- >> 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. >> >> >> > > -- -- 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.
