In addition to that, prnTime should have no parens: #(on-thread prnTime) As it was, prnTime was running before going into on-thread, which was acting on a runnable that's nil (the return value of prn). The difference between the two can be seen in the output. When prnTime runs inside the threads, its output gets mixed up with thre repl, as you'd expect.
user=> (r4t #(on-thread prnTime)) 1281109289923 nil 1281109289939 1281109289939 user=> 1281109289939 (r4t #(on-thread (prnTime))) 1281109301705 1281109301705 1281109301705 1281109301705 nil On Aug 6, 5:34 am, Nikita Beloglazov <nikelandj...@gmail.com> wrote: > Hi, foop > Your error in this line: > (r4t (on-thread (prnTime))) > You pass to function r4t thread instead of functions. Because > (on-thread (prnTime)) returns thread > You must pass #(on-thread (prnTime)) instead > > Regards, > Nikita Beloglazov > > > > On Fri, Aug 6, 2010 at 3:13 PM, foop1 <bsmd...@gmail.com> wrote: > > Hi, > > > Iam trying to run a function in a thread assuming that threads are > > runnable, below is my program i want to print 4 time the current date > > > (defn- on-thread [f] > > (doto (Thread. #^Runnable f) > > (.start))) > > > (defn prnTime [] (prn (System/currentTimeMillis))) > > > (defn r4t [f] > > (dotimes [n 4] (f))) > > > (r4t (on-thread (prnTime))) > > iam getting this error what is wrong with this ? > > java.lang.Thread cannot be cast to clojure.lang.IFn > > > Pls let me know what is wrong and how to make it run in 4 threads so > > that i can see 4 time the system print to the screen > > > -- > > 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<clojure%2bunsubscr...@googlegroups.com> > > For more options, visit this group at > >http://groups.google.com/group/clojure?hl=en- Hide quoted text - > > - Show quoted text - -- 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
