Re: Must PersistentQueue be stored in ref not atom?
Hi, Meikel I didn't know there is a lower level operation. Thanks. !paws is a tony name :) However, my suspicion is, that you don't clearly divide the state handling from the program logic. The peek should happen in the update function you pass to swap!. If this is not side-effect free, it means that you have to coordinate with other identities and resources. Then a ref or an agent might be indeed a better fit than the atom. The best way might be sealing stuff in poll! function and using polymorphism so that we can easily switch identity between ref and atom. (defprotocol Pollable (poll! [x])) (extend-protocol Pollable clojure.lang.Ref (poll! [r] (dosync (let [item (peek @r)] (alter r pop) item))) clojure.lang.Atom (poll! [a] (peek (!paws a pop Maybe overengineering. 2011/11/10 Meikel Brandmeyer (kotarak) m...@kotka.de: Hi, an atom can be sufficient, but you need to drop to a lower level. (defn !paws Like swap! but returns the old value of the atom. [a f args] (loop [] (let [old-value @a new-value (apply f old-value args)] (if (compare-and-set! a old-value new-value) old-value (recur) (peek (!paws atom-with-queue pop)) However, my suspicion is, that you don't clearly divide the state handling from the program logic. The peek should happen in the update function you pass to swap!. If this is not side-effect free, it means that you have to coordinate with other identities and resources. Then a ref or an agent might be indeed a better fit than the atom. Sincerely Meikel -- 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 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
Re: smallest unit of code requiring a CA
Charlie Griefer wrote: Chris Gray wrote: I have a patch to the clojure compiler that I would like to submit. I haven't signed a CA, but the patch is quite small. Would it be possible to submit it without a CA? I have no objection to signing one; it would just be slightly embarassing to do so for such a small patch. :) The patch is at https://github.com/chrismgray/clojure/tree/namespace-divides and simply allows code to refer to the / function in namespaces other than clojure.core. FWIW, I'd just go ahead and sign the CA. Regardless of how small you might perceive this particular patch to be, you may very well find yourself submitting additional patches in the future. Okay, it's in the mail. I will now submit the patch through JIRA. Thanks for the advice! Cheers, Chris -- 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
Looking for example code and other learning resources
Hi all, As part of my effort to learn Clojure, I'm looking for examples of good (open) source that makes use of STM and other concurrency features. I was wondering if any of you would be kind enough to point me at interesting, idiomatic examples of code that leverages any of the following: - atoms - agents - futures - promises I've read Programming Clojure and the Joy of Clojure–both of which include helpful heuristics to decide among the concurrency options–but I think I need to step back and better understand when I might need to reach for any of these tools to begin with. I've managed to write a fair amount of admittedly trivial code without any of these features, but perhaps I'm doing it wrong. Pointers to literature, screencasts, discussions, blog posts or books would be most welcome. I've also been trying to understand the Clojure source (particularly the ASM) and was wondering if there are any good resources that explain the low-level design and implementation of the language. If not, let me be the first to say I'd gladly part with money for a book on the subject... ;) Thanks very much in advance. Christian Romney -- 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
Re: Looking for example code and other learning resources
Hi - I have found this site *very* useful. http://clojuredocs.org/quickref/Clojure%20Core On Nov 10, 9:50 am, Christian Romney xmlb...@gmail.com wrote: Hi all, As part of my effort to learn Clojure, I'm looking for examples of good (open) source that makes use of STM and other concurrency features. I was wondering if any of you would be kind enough to point me at interesting, idiomatic examples of code that leverages any of the following: - atoms - agents - futures - promises I've read Programming Clojure and the Joy of Clojure–both of which include helpful heuristics to decide among the concurrency options–but I think I need to step back and better understand when I might need to reach for any of these tools to begin with. I've managed to write a fair amount of admittedly trivial code without any of these features, but perhaps I'm doing it wrong. Pointers to literature, screencasts, discussions, blog posts or books would be most welcome. I've also been trying to understand the Clojure source (particularly the ASM) and was wondering if there are any good resources that explain the low-level design and implementation of the language. If not, let me be the first to say I'd gladly part with money for a book on the subject... ;) Thanks very much in advance. Christian Romney -- 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
Re: Clojure Conj extracurricular activities spreadsheet
In the interests of helping with scheduling (and, mostly, common sense given the obvious significant overlap in likely interested parties), I've merged the Counterclockwise-specific tooling BoF into the general- purpose Clojure tooling BoF. If you want to talk about Counterclockwise specifically, check out the tooling BoF and we'll figure out a time and place for a ccw-specific discussion. Cheers, - Chas -- 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
Re: Clojure Conj extracurricular activities spreadsheet
The Clojure development with Android BoF session will be in the Willow Oak room from 6-7 this evening. On Fri Oct 28 12:41 2011, blcooley wrote: On Oct 27, 5:41 pm, Daniel Solano Gomez cloj...@sattvik.com wrote: I'd like to propose a new activity: Android. It'd be more of a hack and chat about doing Android development in Clojure. Some things to talk about could include creating Clojure-friendly tools for Android development and perhaps the possibility of an Android contrib module. Thanks, Daniel Solano Gómez I would definitely attend an Android activity. -- 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 signature.asc Description: Digital signature
Re: Looking for example code and other learning resources
On Nov 10, 12:03 pm, Base basselh...@gmail.com wrote: Hi - I have found this site *very* useful. http://clojuredocs.org/quickref/Clojure%20Core Thanks for your reply. I am familiar with Clojure docs and have found it helpful on occasion. On a separate note, I've been studying the SQL Korma source which makes use of atoms, delays and macros. I'm still searching for in interesting use of agents and promises... -- 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
Re: Clojure Conj extracurricular activities spreadsheet
Does anyone know if the Web and Clojure session will be taking place tonight or another night? -- 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
Re: Clojure Conj extracurricular activities spreadsheet
confirmed tonight -- 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
Re: Clojure Conj extracurricular activities spreadsheet
CORRECTION: The Clojure tooling BoF will *now* be in the Oak Forest room (main ballroom) tonight, 10pm - 11pm. I guess we weren't going to fit in the boardroom… - Chas On Nov 10, 2011, at 3:02 PM, Chas Emerick wrote: The Clojure tooling BoF will be in the President's Boardroom tonight, 10pm - 11pm. - Chas On Nov 10, 12:33 pm, Chas Emerick cemer...@snowtide.com wrote: In the interests of helping with scheduling (and, mostly, common sense given the obvious significant overlap in likely interested parties), I've merged the Counterclockwise-specific tooling BoF into the general- purpose Clojure tooling BoF. If you want to talk about Counterclockwise specifically, check out the tooling BoF and we'll figure out a time and place for a ccw-specific discussion. Cheers, - Chas -- 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 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
JavaScript `debugger' statement
I'm trying to enter the Firebug debugger when an exception is caught: (try ; ... (catch js/Error e js/debugger)) This doesn't work, because js/debugger compiles to debugger$; per cljs.compiler/munge. Any ideas how I can get around this? Thanks, Stu -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: JavaScript `debugger' statement
try (js* debugger()) Matt Hoyt From: Stuart Campbell stu...@harto.org To: Clojure clojure@googlegroups.com Sent: Thursday, November 10, 2011 9:16 PM Subject: JavaScript `debugger' statement I'm trying to enter the Firebug debugger when an exception is caught: (try ; ... (catch js/Error e js/debugger)) This doesn't work, because js/debugger compiles to debugger$; per cljs.compiler/munge. Any ideas how I can get around this? Thanks, Stu -- 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 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
gaidica command??
I tried this command but can't find how to execute it. $ lein run -m gaidica.core What folder do I execute this ? (Vista windows ) Probably simple but it's difficult for me Thanks # gaidica Example Seesaw application. Display weather data from weatherunderground.com ## Usage $ lein deps $ lein run -m gaidica.core -- 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
