Clojure's concurrency primitives are built on the functionality provided by java.util.concurrent and I think solutions for asynchronous composition should also be built on java.util.concurrent. Agents are identities over a series of results from asynchronous function application. Nothing about composable async tasks there.
I don't think java has a nice solution we can just use, but all the bits we need are there. die-geister is sort of a rough sketch of what could be built, it needs better control over which thread pool tasks are schedule on, and most of the custom types it uses should just be Futures. http://channel9.msdn.com/events/PDC/PDC10/FT09 http://medianetwork.oracle.com/media/show/17013 (this is my favorite video, because it is the only one I've seen that talks at least a little about how the new Task<>s are scheduled) http://tomasp.net/academic/joinads/joinads.pdf On Sun, Sep 11, 2011 at 2:22 PM, Sean Corfield <seancorfi...@gmail.com> wrote: > On Sun, Sep 11, 2011 at 1:29 AM, Laurent PETIT <laurent.pe...@gmail.com> > wrote: >> now that I've stepped back a little bit and acknowledged my ignorance (while >> working on it : currently reading "Java concurrency in practice" :-) ) > > Kevin pulled me up on this too (in IRC) and pointed me at the Java > solution. As it happened I decided to avoid an async solution in the > end (the speed up wasn't worth the complexity of adding concurrency > in my situation - which I didn't know for sure until I'd tried both > approaches). > >> This remains me of the "viscosity" smell : if it's way easier to do the >> wrong thing than it is to do the right thing, expect people to do the wrong >> one. > > Yes, it seems that this is a common enough need that it would be nice > to have an idiomatic Clojure library to implement this, perhaps as > part of new contrib? > > Kevin, I'd be particularly interested in your thoughts on that since I > understand you feel the Java solution is already pretty clean and > simple? > -- > Sean A Corfield -- (904) 302-SEAN > An Architect's View -- http://corfield.org/ > World Singles, LLC. -- http://worldsingles.com/ > Railo Technologies, Inc. -- http://www.getrailo.com/ > > "Perfection is the enemy of the good." > -- Gustave Flaubert, French realist novelist (1821-1880) > > -- > 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 -- And what is good, Phaedrus, And what is not good— Need we ask anyone to tell us these things? -- 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
