On Wed, Sep 16, 2009 at 6:34 AM, Krukow <karl.kru...@gmail.com> wrote:
> Another interesting thing happened. I wrote another program using ref > validators only. > > http://paste.lisp.org/display/87117#4 > > That program does produce write-skews. Further, occasionally the > program never terminates! I did (run 100) a few times on my core 2 > duo, and the program just looped. > I think you managed to produce a deadlock :-( thread 1 is commiting and has a write lock on a1 thread 2 is commiting and has a write lock on a2 thread1 tries to acquire a read lock on a2 (in the validator) and blocks because thread2 has a write lock on a2. thread2 tries to acquire a read lock on a1 (in the validator) and blocks because thread1 has a write lock on a1. * are validators not meat to be used cross ref? I.e. validating a > constraint across multiple refs. > I would say that you should not use validators for cross-constraints. Reading the doc for ref, I'm not sure. We'll have to wait for Rich to clarify. Christophe -- Professional: http://cgrand.net/ (fr) On Clojure: http://clj-me.blogspot.com/ (en) --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
