Thanks for the replies! Before I start doing something silly, I would like to ask another question. The eventual goal of all of this is to establish bindings which also affect the same global variable in other namespaces (these other namespaces will 100% have the same global variable). In other words, an equivalent of binding which affects all namespaces. Also i want a binding which will affect threads that I start (this is easy, i can just pass the one var as a parameter?).
Anyone have any suggestions on how they would do this. The solution has to be fast as this binding will be occuring fairly often and rapid. At first I considered a global variable to which i would push a value then pop it once the binding was done. However, I eventually rejected this because there is no way to control access to this one global var without freezing the whole program (refs won't do..). With threads, without this ref, everything would get messed up if a thread suddenly got killed without popping. This would spell disaster for the whole program so... Then I considered having a unique global variable per thread. Then somehhow i would get the thread id and hash that with the current value. Anything which needed to use the same variable would looks up its thread id and then look in the global hash to see the value. Then i rejected that because I'm guessing first its probably inefficient to do this and I don't know even how that would work. Finally i considered using the binding form and in order to achieve the binding across namespaces redefine the defn to create two functions, one which take as the first argument a special structure which includes the new binding. Then the function would bind it in its own namespace. This function would be a gensymed name, so i could call the function regularly in my code and amacro would take care of expanding it. However, on the other hand, i would most definitely want these to be used as functions so i was considering redefining apply to allow this functionality Does map and all those functions use apply, though? I doubt it. So maybe that idea is cracked. Notice that this binding is going to be happening very often, so the solution has to be fast enough. Anyone have any ideas? And yes, i have to bind global variables across namespaces. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
