armedbear-devel April 2015

armedbear-devel@common-lisp.net

54 participants
100 discussions

[armedbear-devel] Futile attempt at using Akka
by ubikation _ 08 Apr '15

08 Apr '15

Hello, I have been playing around with Common Lisp for a while and I really want to get this idea working. I have been reading a lot about Akka, but I'm not really a Java/Scala/distributed guy. To my understanding, Akka is an agnostic way to create Actors that can send messages at varying speeds, speeding up with the available memory and cores and easily extending itself for distributed communication via remote Actors. I'm not an expert by any means, so feel free to correct me on the description. I would like to create bindings to this example http://doc.akka.io/docs/akka/2.1.2/java/untyped-actors.html and it was suggested to me that I might use "java:jnew-runtime-class" by the very nice ehu on #abcl. My repository is at https://github.com/ubikation/chemicalambda if anyone is interested in my progress or wants a better idea of where I am (not really beyond starting the project at the moment). At the minimum I would like to create bindings, but I would like to do something more interesting after I get some stuff working. I do not know what I am doing at all, but I am hoping that creating these bindings will help solidify my understanding of Common Lisp and of ABCL in particular. Thanks again!

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[armedbear-devel] undesirable behavior in #'directory ?
by Alan Ruttenberg 08 Apr '15

08 Apr '15

Emacs creates files like this: lrwxr-xr-x 1 alanr staff 30 Jan 6 01:40 .#foo.sql@ -> alanr(a)conjunctive-2.local.6427 as lock files, IIRC. In such cases, the target of link names a file that doesn't exist. #'directory calls #'truename on the filenames that are listed, and truename does a probe file. Incidentally It looks like that is done in the java as well as the lisp function making the latter redundant. It seems wrong that there is a situation in which one can't call directory at all without getting an error. The crux of the matter is how to interpret the documentation of truename in the presence of symbolic links. The doc for truename says: If filespec is a pathname it represents the name used to open the file. This may be, but is not required to be, the actual name of the file." "actual name of the file" suggests that there is a file, but also suggests that it is the name that is important. Also whereas directory allows implementation-dependent keywords, truename is not so defined. I'll take the position that truename should *not* depend on the file existing, but rather focus on what names are present in directory structures. So resolve-truenames nil should should return the names in the directory and for resolve-truenames t it should follow symbolic links as long as they can be followed without hitting a name that doesn't designate an existing file. -Alan

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[armedbear-devel] installing java dependencies with :mvn ASDF component
by Anton Vodonosov 08 Apr '15

08 Apr '15

Hello. I need to import data from Excel, and following Hans Hübner's article for how to do this with ABCL: http://netzhansa.blogspot.com/2013/03/dealing-with-excel-files-from-common.… The Hans' code depends on Apache POI library. I saw that ABCL comes from abcl-asdf contrib, which extends ASDF by adding a :mnv component, so that we can specify :mvn artifact as a dependency of our ASDF system. I would like to use this facility to automatically install the POI .jar files. I created an .asdf file with this content: (defsystem :excel-s :defsystem-depends-on (:abcl-asdf) :version "0.1.0" :encoding :utf-8 :components ((:mvn "org.apache.poi/poi-ooxml/3.9"))) Then I invoke ABCL: C:\Users\anton\projects\abcl\abcl.bat --batch --eval "(require :abcl-contrib") --eval "(pushnew \"./\" asdf:*central-registry* :test #'equal)" --eval "(ql:quickload :excel-s)" It fails with exception: java.lang.ClassNotFoundException: aether.util.artifact.DefaultArtifact This exception is throw by abcl-asdf::resolve-dependencies function, defined in the contrib/abcl-asdf/maven-embedder.lisp. Maven is installed on my machine, including the /lib/ directory containing the Aether API jars. I performed some investigation and tried to ensure the Aether .jars are added to classpath: (abcl-asdf::init) (let ((*default-pathname-defaults* abcl-asdf::*mvn-libs-directory*)) (dolist (jar-pathname (or (directory "**/*.jar") (error "no jars found in ~S - expected Apache Maven /libs/ directory ~ installation there" (merge-pathnames abcl-asdf::*mvn-libs-directory*)))) (java:add-to-classpath (namestring jar-pathname)))) Still I have the same error - class aether.util.artifact.DefaultArtifact not found. Is the way I am trying to install java libs expected to work, and how to find the problem? Best regards, - Anton

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Re: [armedbear-devel] Pdfdoclet - Javadoc for ABCL in PDF format
by Mark Evenson 08 Apr '15

08 Apr '15

On 7/23/13 11:34 PM, Sean Champ wrote: […] > Personally and primarily, I've been interested in the possibility of > developing an ABCL interface onto Apache Jena, and possibly an interface > onto some JARs distributed by the GeoTools project - would like to > develop a process of transforming an ESRI Shapefile into an OWL > ontology, and it seemed that ABCL would be a good Common Lisp > implementation to use for such a purpose. See [jeannie][] for an initial wrapping of Jena with ABCL. It doesn't do much more than read RDF from a PATHNAME, but adding the rest is a matter of rolling up the proverbial sleeves. [jeannie]: http://bitbucket.org/easye/jeannie […] > In looking at that idea, I'd been interested about how the CLOS support > is implemented in ABCL, and whether and how MOP might be implemented, > there. As much of CLOS/MOP as possible has been implemented in Lisp: see clos.lisp. CLOS is mostly historical, evolving in fits and starts over the lifetime of ABCL. The MOP has been added mostly of the last year by Rudi Schlatte. Following his commits chronologically would give somewhat of an impression of how it is implemented. […] > (On a personal note: > Between moving and returning to college, it's been a busy summer, > frankly, but there are some bluesky ideas that one can focus on, I suppose) No sweat: we should still be here when you get some time. -- "A screaming comes across the sky. It has happened before, but there is nothing to compare to it now."

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Are we back?
by Erik Huelsmann 08 Apr '15

08 Apr '15

Test. sent from my phone

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[armedbear-devel] 7th European Lisp Symposium, May 5-6 2014, Paris, France
by Didier Verna 08 Apr '15

08 Apr '15

ELS'14 - 7th European Lisp Symposium IRCAM, Paris, France May 5-6, 2014 http://www.european-lisp-symposium.org/ The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. The 7th European Lisp Symposium invites high quality papers about novel research results, insights and lessons learned from practical applications, and educational perspectives. We also encourage submissions about known ideas as long as they are presented in a new setting and/or in a highly elegant way. Topics include but are not limited to: - Context-, aspect-, domain-oriented and generative programming - Macro-, reflective-, meta- and/or rule-based development approaches - Language design and implementation - Language integration, inter-operation and deployment - Development methodologies, support and environments - Educational approaches and perspectives - Experience reports and case studies Please note that IRCAM, the conference venue, is a French institute for research on music and acoustics. Submissions relating Lisp to music or other acoustical matters will hence be particularly welcome, although given no heightened favor during the review process. We invite submissions in the following forms: Papers: Technical papers of up to 8 pages that describe original results or explain known ideas in new and elegant ways. Demonstrations: Abstracts of up to 2 pages for demonstrations of tools, libraries, and applications. Tutorials: Abstracts of up to 4 pages for in-depth presentations about topics of special interest for at least 90 minutes and up to 180 minutes. The symposium will also provide slots for lightning talks, to be registered on-site every day. All submissions should be formatted following the ACM SIGS guidelines and include ACM classification categories and terms. For more information on the submission guidelines and the ACM keywords, see: http://www.acm.org/sigs/publications/proceedings-templates and http://www.acm.org/about/class/1998. Important dates: - TODAY: Mark your calendar. Start planning now! - 09 Mar 2014: Submission deadline - 31 Mar 2014: Notification of acceptance - 21 Apr 2014: Final Papers due - 05 May 2014: Symposium. Join us there! Program Committee: Chair: Kent Pitman, Hypermeta Inc., U.S.A. Local Organizers: Didier Verna, EPITA Research Lab, France Gérard Assayag, IRCAM, France Members: To be announced later Search Keywords: #els2014, ELS 2014, ELS '14, European Lisp Symposium 2014, European Lisp Symposium '14, 7th ELS, 7th European Lisp Symposium, European Lisp Conference 2014, European Lisp Conference '14 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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[armedbear-devel] Fwd: Wild pathnames
by Faré 08 Apr '15

08 Apr '15

Bug report: abcl doesn't correctly process filenames with a "*" in them. Here is the command I ran, where cl is the latest cl-launch 4: mkdir -p /tmp/x ; touch "/tmp/x/*" ; for i in sbcl ccl clisp cmucl ecl abcl \ scl allegro lispworks gcl xcl ; do echo $i ; cl -l $i -iw \ '(let ((x (directory "/tmp/x/*"))) (list "'$i'" x (pathname-name (first x))))' ; done And the summarized results are: Escape properly: ("sbcl" (#P"/tmp/x/\\*") "*") ("ccl" (#P"/tmp/x/\\*") "\\*") ("cmucl" (#P"/tmp/x/\\*") "*") ("lispworks" (#P"/tmp/x/\\*") "\\*") ("scl" (#P"file://localhost/tmp/x/*") "*") Read badly: ("clisp" (#P"/tmp/x/*") :WILD) ("ecl" (#P"/tmp/x/*") :WILD) ("allegro" (#P"/tmp/x/*") :WILD) ("xcl" (#P"/tmp/x/*") :WILD) Error out: abcl Fatal condition: Bad place for a wild pathname. gcl: Fatal condition: Condition in LET [or a callee]: INTERNAL-SIMPLE-FILE-ERROR: File error on "/tmp/x/*": File "/tmp/x/*" is wild —♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org No man would listen to you talk if he didn't know it was his turn next. — Edgar Watson Howe

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[armedbear-devel] multidimensional java arrays?
by Cyrus Harmon 08 Apr '15

08 Apr '15

I am trying to connect ABCL up with some java code that uses multidimensional arrays of the form: int[][] theArray = new int[4][4]; The problem is that when I call this code I get something like this in return: #(#<jarray [I@2d983837 {6492BA43}> #<jarray [I@5d02b84a {5D9131FA}> #<jarray [I@67684413 {6E4D706E}> #<jarray [I@1e107e55 {4CD60DDE}>) that is a lisp array that contains 4 java arrays. I can’t pass this off to a method like this: static public int[][] arrayTest2(int[][] oldArray) { … } I can work around this by creating a new java array myself (and populating it appropriately), but this is no fun. Is this the intended behavior? thanks, Cyrus

3 5

[armedbear-devel] Trouble calling a static function
by ubikation _ 08 Apr '15

08 Apr '15

I have been trying to create a static function that allows me to create an Akka Actor so I can try to play with it from within slime, but I am running into a very odd issue. ----- Issue: The static function for Java works perfectly, but the equivalent static function for slime does not. ----- The files for reproducing this issue are attached, and the repository that I am using is: https://github.com/ubikation/chemicalambda Testing requires having the correct jars, which are installable via the pom.xml: mvn install mvn dependency:copy-dependencies The second command should create a target/dependency folder that you have to add to the classpath, along with the dir containing all of the files I've attached to this email. ----- Here is my calling session: CL-USER> (load "/home/ubikation/src/lisp/chemicalambda/AkkaTest.lisp") T CL-USER> (my-test) This is the error when trying to call the static function: Java exception 'java.lang.NoClassDefFoundError: akka/actor/ActorSystem'. [Condition of type JAVA-EXCEPTION] Restarts: 0: [RETRY] Retry SLIME REPL evaluation request. 1: [*ABORT] Return to SLIME's top level. 2: [ABORT] Abort thread. Backtrace: 0: (#<FUNCTION {1E9ABE91}> #<JAVA-EXCEPTION {15883401}> #<FUNCTION {1E9ABE91}>) 1: (APPLY #<FUNCTION {1E9ABE91}> (#<JAVA-EXCEPTION {15883401}> #<FUNCTION {1E9ABE91}>)) 2: (SYSTEM::RUN-HOOK SYSTEM::*INVOKE-DEBUGGER-HOOK* #<JAVA-EXCEPTION {15883401}> #<FUNCTION {1E9ABE91}>) 3: (INVOKE-DEBUGGER #<JAVA-EXCEPTION {15883401}>) 4: org.armedbear.lisp.Lisp.error(Lisp.java:382) 5: org.armedbear.lisp.Java.jstatic(Java.java:487) 6: org.armedbear.lisp.Java$pf_jstatic.execute(Java.java:513) 7: org.armedbear.lisp.Primitive.execute(Primitive.java:123) 8: (JSTATIC "test" "AkkaApiSimple") 9: (VOID-FUNCTION) 10: (MY-TEST) 11: (SYSTEM::%EVAL (MY-TEST)) 12: (EVAL (MY-TEST)) 13: (SWANK::EVAL-REGION "(my-test) ") 14: (#<FUNCTION {210E38B2}>) 15: (SWANK::TRACK-PACKAGE #<FUNCTION {210E38B2}>) 16: (#<FUNCTION {2CAC3F12}>) 17: (SWANK::CALL-WITH-RETRY-RESTART "Retry SLIME REPL evaluation request." #<FUNCTION {2CAC3F12}>) 18: (#<FUNCTION {6060CDA7}>) 19: (FUNCALL #<FUNCTION {6060CDA7}>) 20: (#<FUNCTION (LAMBDA (SWANK-BACKEND::FN)) {735DC05F}> #<FUNCTION {6060CDA7}>) 21: (APPLY #<FUNCTION (LAMBDA (SWANK-BACKEND::FN)) {735DC05F}> #<FUNCTION {6060CDA7}> NIL) 22: (SWANK-BACKEND:CALL-WITH-SYNTAX-HOOKS #<FUNCTION {6060CDA7}>) 23: (SWANK::CALL-WITH-BUFFER-SYNTAX NIL #<FUNCTION {6060CDA7}>) 24: (SWANK::REPL-EVAL "(my-test) ") 25: (SWANK:LISTENER-EVAL "(my-test) ") 26: (SYSTEM::%EVAL (SWANK:LISTENER-EVAL "(my-test) ")) 27: (EVAL (SWANK:LISTENER-EVAL "(my-test) ")) 28: (#<FUNCTION {1000D825}>) 29: (JRUN-EXCEPTION-PROTECTED #<FUNCTION {1000D825}>) 30: (SWANK:EVAL-FOR-EMACS (SWANK:LISTENER-EVAL "(my-test) ") "COMMON-LISP-USER" 12) 31: (APPLY #<EVAL-FOR-EMACS {4FAC1D53}> ((SWANK:LISTENER-EVAL "(my-test) ") "COMMON-LISP-USER" 12)) 32: (SWANK::PROCESS-REQUESTS NIL) 33: (#<FUNCTION {276E6D58}>) 34: (EVAL (SWANK:LISTENER-EVAL "(test) ")) 35: (#<FUNCTION {42CCC0A1}>) 36: (JRUN-EXCEPTION-PROTECTED #<FUNCTION {42CCC0A1}>) 37: (SWANK:EVAL-FOR-EMACS (SWANK:LISTENER-EVAL "(test) ") "COMMON-LISP-USER" 9) 38: (APPLY #<EVAL-FOR-EMACS {4FAC1D53}> ((SWANK:LISTENER-EVAL "(test) ") "COMMON-LISP-USER" 9)) 39: (SWANK::PROCESS-REQUESTS NIL) 40: (#<FUNCTION {107AAC4A}>) 41: (#<FUNCTION {65C536B9}>) 42: (FUNCALL #<FUNCTION {65C536B9}>) 43: ((FLET SWANK-BACKEND:CALL-WITH-DEBUGGER-HOOK) #<SWANK-DEBUGGER-HOOK {773F0D3A}> #<FUNCTION {65C536B9}>) 44: (APPLY #<(FLET CALL-WITH-DEBUGGER-HOOK) {768BDFE1}> #<SWANK-DEBUGGER-HOOK {773F0D3A}> #<FUNCTION {65C536B9}> NIL) 45: (SWANK-BACKEND:CALL-WITH-DEBUGGER-HOOK #<SWANK-DEBUGGER-HOOK {773F0D3A}> #<FUNCTION {65C536B9}>) 46: (#<FUNCTION {59176994}>) 47: (SWANK::CALL-WITH-BINDINGS ((*STANDARD-OUTPUT* . #S(SLIME-OUTPUT-STREAM)) (*STANDARD-INPUT* . #S(SLIME-INPUT-STREAM)) (*TRACE-OUTPUT* . #S(SLIME-OUTPUT-STREAM)) (*ERROR-OUTPUT* . #S(SLIME-OUTPUT-STREA.. 48: (#<FUNCTION {3A65F5B1}>) 49: (JRUN-EXCEPTION-PROTECTED #<FUNCTION {3A65F5B1}>) 50: (#<FUNCTION {7BE5556A}>) 51: (JRUN-EXCEPTION-PROTECTED #<FUNCTION {7BE5556A}>) 52: (SWANK::HANDLE-REQUESTS #S(SWANK::MULTITHREADED-CONNECTION :SOCKET #<java.net.ServerSocket ServerSocket[addr=0.0.0.0/0.0.0..... {6BC6FEA9}> :SOCKET-IO #<TWO-WAY-STREAM {55794086}> :DEDICATED-OUTPUT NI.. 53: (SWANK::REPL-LOOP #S(SWANK::MULTITHREADED-CONNECTION :SOCKET #<java.net.ServerSocket ServerSocket[addr=0.0.0.0/0.0.0..... {6BC6FEA9}> :SOCKET-IO #<TWO-WAY-STREAM {55794086}> :DEDICATED-OUTPUT NIL :USE.. 54: (#<FUNCTION {B7B4941}>) 55: (SWANK::CALL-WITH-BINDINGS NIL #<FUNCTION {B7B4941}>) 56: (#<FUNCTION {4B06504A}>) 57: (FUNCALL #<FUNCTION {4B06504A}>) 58: (#<FUNCTION (LAMBDA ()) {B8150C1}>) 59: (THREADS::THREAD-FUNCTION-WRAPPER #<FUNCTION (LAMBDA ()) {B8150C1}>) I've tried to be very clear but I'm sure I've missed something. I don't know what's causing this error, and I can't tell if I'm going about this in some stupid manner or if this is a symptom of a more complex issue. If you need any help reproducing this issue please email me, I'm desperate for any input. Thank you very much for your time!

2 4

[armedbear-devel] hang with threads:object-wait
by James M. Lawrence 08 Apr '15

08 Apr '15

(defun test () (let ((object (cons nil nil))) (threads:synchronized-on object (threads:object-wait object 0.0001)))) For times between 0 and 0.0001 this appears to hang indefinitely. No problem with times above 0.001. The context is the new timeout option for bordeaux-threads:condition-wait, https://github.com/sionescu/bordeaux-threads/blob/master/src/impl-abcl.lisp… 1.3.0-dev-svn-14623 Java_HotSpot(TM)_Server_VM-Oracle_Corporation-1.7.0_04-b20 i386-Linux-3.2.0-24-generic-pae Best, lmj

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armedbear-devel April 2015