armedbear-devel

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1199 discussions

[armedbear-devel] bug: example java-to-lisp1 does not compile (ABCL 1.2.1)
by David Catteeuw 08 Apr '15

08 Apr '15

Hello, While experimenting with ABCL, i noticed that the example "java-to-lisp1" cannot be compiled using ABCL 1.2.1. It does compile using ABCL 1.1.1. The method "findPackage(String)" seems to have disappeared from "Packages" in the new release. java-to-lisp1$ javac -cp /Applications/Dev/abcl-1.1.1/abcl.jar:. *.java java-to-lisp1$ javac -cp /Applications/Dev/abcl-1.2.1/abcl.jar:. *.java MainAlternative.java:39: cannot find symbol symbol : method findPackage(java.lang.String) location: class org.armedbear.lisp.Packages Packages.findPackage("CL-USER"); ^ 1 error java-to-lisp1$ java version "1.6.0_51" Java(TM) SE Runtime Environment (build 1.6.0_51-b11-457-10M4509) Java HotSpot(TM) 64-Bit Server VM (build 20.51-b01-457, mixed mode) java-to-lisp1$ javac -version javac 1.6.0_51 java-to-lisp1$ Kind regards, david.

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Re: [armedbear-devel] threads:interrupt-thread
by Carlos Ungil 08 Apr '15

08 Apr '15

Hello Erik, I don't know how to debug java processes but I have an intuition about why those threads are not interrupted: they're never waiting. See the example below: an interruption scheduled for the interpreter thread is only executed when I put the thread to sleep (and if the garbage collector runs in the meantime it's lost). The reason why I cared about being able to interrupt the main thread was to run finalizers from there, to avoid concurrency issues in a foreign library. In the end I implemented an alternative solution using locks so I'm not really concerned about this problem anymore. Regards, Carlos CL-USER(1): (let ((main (threads:current-thread))) (threads:make-thread (lambda () (threads:interrupt-thread main (lambda () (print "Hi there!")))))) #<THREAD {3AF6EA95}> CL-USER(2): (* 2 2) 4 CL-USER(3): (sleep 1) "Hi there!" NIL CL-USER(4): (let ((main (threads:current-thread))) (threads:make-thread (lambda () (threads:interrupt-thread main (lambda () (print "Hi there!")))))) #<THREAD {CE5A31A}> CL-USER(5): (gc) 462843184 CL-USER(6): (sleep 1) NIL On 06/09/2013, at 21:49, Erik Huelsmann <ehuels(a)gmail.com> wrote: > Hi Carlos, > > > is there a reason why interrupt-thread doesn't seem to run the requested function in some cases? The following code tries to run a function in each existing thread (the variable *output* logs the calls that we try to run and the ones that are actually run). > > Looking at your code, there may be multiple causes for the strings not showing up in the output. Frst of all, there's a problem with concurrency in your code: pushing into the *output* variable across threads isn't thread safe. The other reason for the code not being executed could be a bug: the code "checks manually" whether the thread interrupt has been invoked and executes the function(s) handed over. Maybe these threads land in loops that do not check this condition. > > (defvar *output*) > > > > (defun test-run () > > (setf *output* nil) > > (threads:mapcar-threads > > (lambda (thread) > > (push (format nil "~A : calling" thread) *output*) > > (threads:interrupt-thread thread > > (lambda () > > (push (format nil "~A : running" thread) *output*)))))) > > > > (defun test-report () > > (format t "~{~A~%~}" (reverse *output*))) > > > > Running in the command line: > > [snip] > > > > > I can understand that the thread "TEST-RUN" that I create to run the function might disappear before it gets to run the function as requested, or maybe the reason is that a thread can't interrupt itself by design... But why doesn't the thread "interpreter" run the function? > > > > Running in slime there are many threads present, and most of them will respond as expected. But "TEST-RUN", "interpreter" and "reader-thread" won't. > > Can you interrupt the reader-thread and interpreter thread in a java debugging environment and tell me what the stack trace is when you send the signal that isn't being processed? Maybe the answer turns out to be really obvious. > Thanks! > > Bye, > > > Erik. >

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[armedbear-devel] [CfP] International Lisp Conference, Aug. 14-17 2014, Montréal, Canada
by Didier Verna 08 Apr '15

08 Apr '15

ILC 2014 - International Lisp Conference "Lisp on the Move" August 14-17 2014, Université de Montréal, Montréal, Canada Sponsored by the Association of Lisp Users http://www.international-lisp-conference.org Scope: Lisp is one of the greatest ideas from computer science and a major influence for almost all programming languages and for all sufficiently complex software applications. The International Lisp Conference is a forum for the discussion of Lisp and, in particular, the design, implementation and application of any of the Lisp dialects. We encourage everyone interested in Lisp to participate. We invite high quality submissions in all areas involving Lisp dialects and any other languages in the Lisp family, including, but not limited to, ACL2, AutoLisp, Clojure, Common Lisp, ECMAScript, Dylan, Emacs Lisp, ISLISP, Racket, Scheme, SKILL, HOP etc. This year's focus will be directed towards integrated solutions, including mobile computing. We especially invite submissions in the following areas: * Pervasive computing * Interoperability * Portability * Implementation challenges/tradeoffs for embedded/mobile platforms * Language support for mobile toolkits and frameworks * Language support for distribution * Language support for reliability, availability, and serviceability * Mobile IDEs * Mobile applications Contributions are also welcome in other areas, including but not limited to: * Language design and implementation * Language integration, inter-operation and deployment * Applications (especially commercial) * Reflection, meta-object protocols, meta-programming * Domain-specific languages * Programming paradigms and environments * Efficient parallel and concurrent computation * Language support for managing both manual and automatic GC * Theorem proving * Scientific computing * Data mining * Semantic web Technical Programme: Original submissions in all areas related to the conference themes are invited for the following categories: Papers: Technical papers of up to 10 pages that describe original results. Demonstrations: Abstracts of up to 2 pages for demonstrations of tools, libraries and applications. Workshops: Abstracts of up to 2 pages for groups of people who intend to work on a focused topic for half a day. Tutorials: Abstracts of up to 2 pages for in-depth presentations about topics of special interest for 1 to 2 hours. Panel discussions: Abstracts of up to 2 pages for discussions about current themes. Panel discussion proposals must mention panel member who are willing to partake in a discussion. The conference will also provide slots for lightning talks, to be registered on-site every day. For inquiries about any other kind of participation (commercial exhibits, advertising, prizes, book signing etc.), please see the contacts below. Important Dates: - May 18, 2014: Submission deadline - June 09, 2014: Notification of acceptance - June 29, 2014: Final Papers due - August 14, 2014: Conference 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. Submissions should be uploaded to Easy Chair, at the following address: https://www.easychair.org/conferences/?conf=ilc14 Organizing Committee: General Chair: Marc Feeley (Université de Montréal, Montréal, Canada) Programme Chair: Didier Verna (EPITA Research lab, Paris, France) Local chair: Marc Feeley (Université de Montréal, Montréal, Canada) Programme Committee: to be announced Contacts: * General Questions: ilc14-organizing-committee at alu.org * Programme Committee: ilc14 at easychair.org For more information, see http://www.international-lisp-conference.org -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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[armedbear-devel] EXT:URL-PATHNAME vs http: as a logical pathname
by Karsten Poeck 08 Apr '15

08 Apr '15

Hello all, I am trying to compile cl-http on abcl. Mostly got it loading, but have some problems with abcls url-pathnames. Example: CL-USER> (lisp-implementation-version) "1.2.1" "Java_HotSpot(TM)_64-Bit_Server_VM-Apple_Inc.-1.6.0_51-b11-456-11M4508" "x86_64-Mac_OS_X-10.8.4" CL-USER> (lisp-implementation-type) "Armed Bear Common Lisp" CL-USER> (setf (logical-pathname-translations "http") '( ("port;**;*.*" "/Users/karstenpoeck/Documents/workspace/trunk/contrib/kpoeck/port-templa te/**/*.*") ("**;*.*" "/Users/karstenpoeck/Documents/workspace/trunk/**/*.*") ) ) ((#P"HTTP:PORT;**;*.*" #P"/Users/karstenpoeck/Documents/workspace/trunk/contrib/kpoeck/port-temp late/**/*.*") (#P"HTTP:**;*.*" #P"/Users/karstenpoeck/Documents/workspace/trunk/**/*.*")) ;;;; the problem is here CL-USER> (translate-logical-pathname "http:declaration.lisp") #P"http:" If I do the same with httpx: instead of http:, the code loads fine. The reason is probably the following. CL-USER> (type-of (pathname "http:declaration.lisp")) URL-PATHNAME Later starting up cl-hhtp i get: http:www;foo.html has a null authority. http:www;foo.html has a null authority. http:proxy-cache; has a null authority. http:pw;random-seed.lisp has a null authority. java.lang.NullPointerException at sun.net.www.ParseUtil.toURI(ParseUtil.java:261) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnectio n.java:905) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.jav a:836) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnect ion.java:1172) at java.net.URL.openStream(URL.java:1010) at org.armedbear.lisp.Pathname.getInputStream(Pathname.java:2369) .... I completely understand that it is desirable to have (load "http://beta.quicklisp.org/quicklisp.lisp") working, but can't you check for "http://" or "https://" before converting a pathname to an url-pathname? Karsten

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[armedbear-devel] Unsubscribe
by Wayne Rogers 08 Apr '15

08 Apr '15

2 1

[armedbear-devel] Status of 1.2.0
by Erik Huelsmann 08 Apr '15

08 Apr '15

Hi Mark, all, My own testing didn't reveal any notable problems, nor did the ANSI test suite. There are a few regressions in cl-test-grid which indicate our changes to symbol interning. My proposal is to go forward with the 1.2 release and release a bugfix as soon as we identify and fix the problem which the cl-colors tests indicate. What's your position? -- Bye, Erik. http://efficito.com -- Hosted accounting and ERP. Robust and Flexible. No vendor lock-in.

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[armedbear-devel] Desperate for a chance to hack with ABCL all day
by ubikation _ 08 Apr '15

08 Apr '15

Greetings! As you may know from my ramblings I'm new to Common Lisp and ABCL in particular. I'm not an experienced coder but I'm really enjoying the time I'm spending becoming more familiar with ABCL/Slime/Emacs. Would anybody be interested in me working for them for a low ($15) hourly contract? I really am desperate for work and and a chance to prove myself. Thank you very much for your time and consideration. I am happy to give more personal information for anybody who is interested.

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[armedbear-devel] Hadoop Anyone?
by Steven Núñez 08 Apr '15

08 Apr '15

Greetings All, I’ve got another ‘big data’ project on the go, and rather than program in Java, I thought I’d give LISP a go. There are ways to program Hadoop with Clojure<http://alexott.net/en/clojure/ClojureHadoop.html>, but I’d rather not learn a non-standard lisp if I can avoid it. Has anyone got ABCL working as a Hadoop map/reduce program? I’d prefer native, but streaming will do if need be. Regards, - SteveN

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[armedbear-devel] ensure-parsed-mvn not yet exported in abcl-asdf.lisp
by Cyrus Harmon 08 Apr '15

08 Apr '15

The recent addition of the asdf:ensure-parsed-mvn call in the RESOLVE defmethod form has the problem that the ensure-parsed-mvn symbol isn’t exported at the time the defmethod is compiled. Assuming that the intended behavior of export is not to change things at compile time, we need to wrap the export call in an appropriate eval-when form. The following seems to fix things for me: diff --git i/contrib/abcl-asdf/abcl-asdf.lisp w/contrib/abcl-asdf/abcl-asdf.lisp index 401487b..b96457e 100644 --- i/contrib/abcl-asdf/abcl-asdf.lisp +++ w/contrib/abcl-asdf/abcl-asdf.lisp @@ -85,8 +85,9 @@ (defun ensure-parsed-mvn (component) (setf path (format nil "~A/~A/~A" group-id artifact-id version)))) component)) -(export `(mvn iri ensure-parsed-mvn group-id artifact-id version) - 'asdf) +(eval-when (:compile-toplevel :load-toplevel :execute) + (export `(mvn iri ensure-parsed-mvn group-id artifact-id version) + 'asdf)) (defmethod source-file-type ((component iri) (system system)) nil)

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[armedbear-devel] abcl 1.2.1 ignores :resolve-symlinks parameter of directory
by Gabor Balazs 08 Apr '15

08 Apr '15

hY, Armed Bear Common Lisp 1.2.1 Java 1.6.0_27 Sun Microsystems Inc. OpenJDK 64-Bit Server VM ls -l -rw-r--r-- 1 user group 0 Dec 15 11:00 file lrwxrwxrwx 1 user group 4 Dec 15 11:00 link -> file CL-USER(3): (directory "./*" :resolve-symlinks nil) (#P"/home/user/test/file" #P"/home/user/test/file") The result should be (#P"/home/user/test/file" #P"/home/user/test/link"). Or do I miss something? Thanks, `bg`

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