armedbear-devel

armedbear-devel@common-lisp.net

1199 discussions

user manual code example race condition
by dingd 17 Mar '19

17 Mar '19

this is recommended in the manual, it contains a race condition. Interpreter interpreter = Interpreter.getInstance (); if ( interpreter == null ) { interpreter = Interpreter.createInstance (); } getInstance and createInstance should be swapped.

5 10

cffi doesn't load on ABCl 1.5 and 1.4 (but works on 1.3 and odler)
by Anton Vodonosov 08 Mar '19

08 Mar '19

1.5 fails with NullPointerException 1.4 with org.armedbear.lisp.Go Best regards, - Anton (ql:quickload :cffi) Java exception 'java.lang.NullPointerException'. [Condition of type JAVA-EXCEPTION] Restarts: 0: [ABORT] Abort thread. Backtrace: 0: (#<FUNCTION {9B7F44}> #<JAVA-EXCEPTION {4A3C4C}> #<FUNCTION {9B7F44}>) 1: (APPLY #<FUNCTION {9B7F44}> (#<JAVA-EXCEPTION {4A3C4C}> #<FUNCTION {9B7F44}>)) 2: (SYSTEM::RUN-HOOK SYSTEM::*INVOKE-DEBUGGER-HOOK* #<JAVA-EXCEPTION {4A3C4C}> #<FUNCTION {9B7F44}$ 3: (INVOKE-DEBUGGER #<JAVA-EXCEPTION {4A3C4C}>) 4: org.armedbear.lisp.Lisp.error(Lisp.java:382) 5: org.armedbear.lisp.Java.jcall(Java.java:911) 6: org.armedbear.lisp.Java$pf_jcall.execute(Java.java:755) 7: org.armedbear.lisp.Primitive.execute(Primitive.java:123) 8: (JCALL "toString" NIL) 9: (SYSTEM::TO-FILE #S(SYSTEM::SYSTEM-STREAM) NIL :APPEND NIL) 10: (#<FUNCTION {12471FB}>) 11: (THREADS::THREAD-FUNCTION-WRAPPER #<FUNCTION {12471FB}>)

2 4

simple hello world fails - can't find LISP_HOME
by Stephen Varey 17 Jan '19

17 Jan '19

I have built abcl from source Then went to write my first simple hello world.... public class Tester { void simple() { Interpreter interpreter = Interpreter.createInstance(); LispObject result = interpreter.eval("(format t \"Hello, world!~%\")"); System.out.println(result); } public static void main(String[] args) { new Tester().simple(); } } The execution fails with the following. ant -f C:\\git\\abcl -Djavac.includes=org/armedbear/lisp/util/Tester.java - Dnb.internal.action.name=run.single -Drun.class=org.armedbear.lisp.util.Tester run-single init: Deleting: C:\git\abcl\build\built-jar.properties deps-jar: Updating property file: C:\git\abcl\build\built-jar.properties Compiling 1 source file to C:\git\abcl\build\classes compile-single: run-single: LISP_HOME C:\git\abcl\src\org\armedbear\lisp\ java.lang.ClassNotFoundException: org.armedbear.lisp.SpecialOperators at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2802) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) java.lang.ClassNotFoundException: org.armedbear.lisp.AutoloadGeneralizedReference at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2807) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) java.lang.ClassNotFoundException: org.armedbear.lisp.cxr at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2808) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) java.lang.ClassNotFoundException: org.armedbear.lisp.Do at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2809) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) java.lang.ClassNotFoundException: org.armedbear.lisp.dolist at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2810) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) java.lang.ClassNotFoundException: org.armedbear.lisp.dotimes at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2811) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) java.lang.ClassNotFoundException: org.armedbear.lisp.ash at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2816) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) java.lang.ClassNotFoundException: org.armedbear.lisp.PackageFunctions at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at org.armedbear.lisp.Lisp.loadClass(Lisp.java:2791) at org.armedbear.lisp.Lisp.<clinit>(Lisp.java:2818) at org.armedbear.lisp.Function$pf_function_class_bytes.<init>(Function.java:225) at org.armedbear.lisp.Function.<clinit>(Function.java:222) at org.armedbear.lisp.Interpreter.<clinit>(Interpreter.java:532) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) Unable to determine LISP_HOME. Unable to determine LISP_HOME. org.armedbear.lisp.IntegrityError ERROR placeholder called with arguments: at org.armedbear.lisp.Primitives$pf_error.execute(Primitives.java:1577) Failed to find loadable system file 'boot.lisp' in boot classpath. at org.armedbear.lisp.Primitive.execute(Primitive.java:113) at org.armedbear.lisp.Symbol.execute(Symbol.java:803) at org.armedbear.lisp.Lisp.error(Lisp.java:383) Failed to find loadable system file 'boot.lisp' in boot classpath. at org.armedbear.lisp.Load.loadSystemFile(Load.java:322) at org.armedbear.lisp.Interpreter.initializeLisp(Interpreter.java:172) at org.armedbear.lisp.Interpreter.createInstance(Interpreter.java:72) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) Exception in thread "main" org.armedbear.lisp.IntegrityError at org.armedbear.lisp.Primitives$pf_error.execute(Primitives.java:1577) at org.armedbear.lisp.Primitive.execute(Primitive.java:113) at org.armedbear.lisp.Symbol.execute(Symbol.java:803) at org.armedbear.lisp.Lisp.error(Lisp.java:383) at org.armedbear.lisp.Load.loadSystemFile(Load.java:322) at org.armedbear.lisp.Interpreter.initializeLisp(Interpreter.java:172) at org.armedbear.lisp.Interpreter.createInstance(Interpreter.java:72) at org.armedbear.lisp.util.Tester.simple(Tester.java:34) at org.armedbear.lisp.util.Tester.main(Tester.java:50) C:\git\abcl\nbproject\build-impl.xml:1339: The following error occurred while executing this line: C:\git\abcl\nbproject\build-impl.xml:980: Java returned: 1 BUILD FAILED (total time: 0 seconds)

2 1

Resolved: ABCL doesn't current work beyond Java 8 (was Re: build failure)
by Mark Evenson 17 Jan '19

17 Jan '19

> > On Jan 15, 2019, at 16:14, Stephen Varey <srvarey(a)gmail.com> wrote: > > > > Hi > > > > I downloaded the source and built in netbeans where i get this error > > > > JAVA-EXCEPTION: Java exception 'java.lang.NoSuchMethodException: No applicable method named getURLs found in java.lang.ClassLoader or jdk.internal.loader.ClassLoaders$AppClassLoader'. > > C:\git\abcl\etc\ant\netbeans-build.xml:15: The following error occurred while executing this line: > > C:\git\abcl\build.xml:280: The following error occurred while executing this line: > > C:\git\abcl\build.xml:299: Java returned: -1 > > BUILD FAILED (total time: 13 seconds) > > > > Can you help? > > > > Thanks > > stephen > > > On Jan 16, 2019, at 10:23, Stephen Varey <srvarey(a)gmail.com> wrote: > > Hi > Thanks for replying > I just this minute found a thread saying there was a problem with java 10 - which is the default for netbeans. > Just finished compiling with java 8 and that was ok That the ABCL build mechanism doesn’t emit a meaningful diagnostic (or better works beyond Java 8) has been [filed as a ticket][1]. [1]: https://abcl.org/trac/ticket/46 -- "A screaming comes across the sky. It has happened before but there is nothing to compare to it now."

1 0

Re: armedbear-devel Digest, Vol 52, Issue 2
by Stephen Varey 16 Jan '19

16 Jan '19

I have joined the mailing list as requested if you could just help me with this last thing I would so appreciated it I can build now - so thats ok just my hello world give this error ant -f C:\\git\\abcl -Djavac.includes=org/armedbear/lisp/util/Tester.java - Dnb.internal.action.name=run.single -Drun.class=org.armedbear.lisp.util.Tester run-single init: Deleting: C:\git\abcl\build\built-jar.properties deps-jar: Updating property file: C:\git\abcl\build\built-jar.properties Compiling 1 source file to C:\git\abcl\build\classes compile-single: run-single: Hello java.lang.ClassNotFoundException: org.armedbear.lisp.SpecialOperators java.lang.ClassNotFoundException: org.armedbear.lisp.AutoloadGeneralizedReference java.lang.ClassNotFoundException: org.armedbear.lisp.cxr java.lang.ClassNotFoundException: org.armedbear.lisp.Do java.lang.ClassNotFoundException: org.armedbear.lisp.dolist java.lang.ClassNotFoundException: org.armedbear.lisp.dotimes java.lang.ClassNotFoundException: org.armedbear.lisp.ash java.lang.ClassNotFoundException: org.armedbear.lisp.PackageFunctions at org.armedbear.lisp.util.Tester.main(Tester.java:57) Unable to determine LISP_HOME. Unable to determine LISP_HOME. ERROR placeholder called with arguments: org.armedbear.lisp.IntegrityError at org.armedbear.lisp.util.Tester.main(Tester.java:57) C:\git\abcl\nbproject\build-impl.xml:1339: The following error occurred while executing this line: C:\git\abcl\nbproject\build-impl.xml:980: Java returned: 1 BUILD FAILED (total time: 1 second) On Wed, Jan 16, 2019 at 1:00 PM <armedbear-devel-request(a)common-lisp.net> wrote: > Send armedbear-devel mailing list submissions to > armedbear-devel(a)common-lisp.net > > To subscribe or unsubscribe via the World Wide Web, visit > https://mailman.common-lisp.net/listinfo/armedbear-devel > or, via email, send a message with subject or body 'help' to > armedbear-devel-request(a)common-lisp.net > > You can reach the person managing the list at > armedbear-devel-owner(a)common-lisp.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of armedbear-devel digest..." > > > Today's Topics: > > 1. build failure (Stephen Varey) > 2. Re: build failure (Mark Evenson) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 15 Jan 2019 16:14:04 +0100 > From: Stephen Varey <srvarey(a)gmail.com> > To: armedbear-devel(a)common-lisp.net > Subject: build failure > Message-ID: > < > CAMkLg7taP0nVFiAYL7pfKpdObj6r26xzUHU48BhfHOySQbA4rQ(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Hi > > I downloaded the source and built in netbeans where i get this error > > JAVA-EXCEPTION: Java exception 'java.lang.NoSuchMethodException: No > applicable method named getURLs found in java.lang.ClassLoader or > jdk.internal.loader.ClassLoaders$AppClassLoader'. > C:\git\abcl\etc\ant\netbeans-build.xml:15: The following error occurred > while executing this line: > C:\git\abcl\build.xml:280: The following error occurred while executing > this line: > C:\git\abcl\build.xml:299: Java returned: -1 > BUILD FAILED (total time: 13 seconds) > > Can you help? > > Thanks > stephen >

1 0

build failure
by Stephen Varey 16 Jan '19

16 Jan '19

Hi I downloaded the source and built in netbeans where i get this error JAVA-EXCEPTION: Java exception 'java.lang.NoSuchMethodException: No applicable method named getURLs found in java.lang.ClassLoader or jdk.internal.loader.ClassLoaders$AppClassLoader'. C:\git\abcl\etc\ant\netbeans-build.xml:15: The following error occurred while executing this line: C:\git\abcl\build.xml:280: The following error occurred while executing this line: C:\git\abcl\build.xml:299: Java returned: -1 BUILD FAILED (total time: 13 seconds) Can you help? Thanks stephen

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[Reminder CfP] ELS 2019, 12th European Lisp Symposium, April 1-2, Genova
by Didier Verna 12 Jan '19

12 Jan '19

ELS'19 - 12th European Lisp Symposium Hotel Bristol Palace Genova, Italy April 1-2 2019 In cooperation with: ACM SIGPLAN In co-location with <Programming> 2019 Sponsored by EPITA http://www.european-lisp-symposium.org/ Recent news: - Keynote by Stefan Monnier on Emacs Lisp - Keynote by Christophe Rhodes on SBCL - Guest appearance by Matthew Flatt on Racket 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 12th 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 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 Computing Classification System 2012 concepts and terms. Submissions should be uploaded to Easy Chair, at the following address: https://www.easychair.org/conferences/?conf=els2019 Note: to help us with the review process please indicate the type of submission by entering either "paper", "demo", or "tutorial" in the Keywords field. Important dates: - 01 Feb 2019 Submission deadline - 01 Mar 2019 Notification of acceptance - 18 Mar 2019 Final papers due - 01-02 Apr 2019 Symposium Programme chair: Nicolas Neuss, FAU Erlangen-Nürnberg, Germany Programme committee: Marco Antoniotti, Universita Milano Bicocca, Italy Marc Battyani, FractalConcept, France Pascal Costanza, IMEC, ExaScience Life Lab, Leuven, Belgium Leonie Dreschler-Fischer, University of Hamburg, Germany R. Matthew Emerson, thoughtstuff LLC, USA Marco Heisig, FAU, Erlangen-Nuremberg, Germany Charlotte Herzeel, IMEC, ExaScience Life Lab, Leuven, Belgium Pierre R. Mai, PMSF IT Consulting, Germany Breanndán Ó Nualláin, University of Amsterdam, Netherlands François-René Rideau, Google, USA Alberto Riva, Unversity of Florida, USA Alessio Stalla, ManyDesigns Srl, Italy Patrick Krusenotto, Deutsche Welle, Germany Philipp Marek, Austria Sacha Chua, Living an Awesome Life, Canada Search Keywords: #els2019, ELS 2019, ELS '19, European Lisp Symposium 2019, European Lisp Symposium '19, 12th ELS, 12th European Lisp Symposium, European Lisp Conference 2019, European Lisp Conference '19 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

1 0

Problem with build-from-lisp.bash
by Pascal Bourguignon 11 Dec '18

11 Dec '18

Hi! The lisp commands to build abcl in the build-from-lisp.bash script have a problem: they’re mere progn forms. When an error occurs, the lisp implementations will enter into the debugger and expect an interactive debugging. This prevents building abcl in automatic scripts, such as: function install_abcl_from_sources(){ # Assume ccl is available. cd "${PREFIX}"/src/ local url='http://abcl.org/releases/1.4.0/abcl-src-1.4.0.tar.gz' local tarball;tarball="$(basename "${url}")" local dir;dir="$(basename "${tarball}" .tar.gz)" local jdkhome;jdkhome="$(java_home)" local logbase;logbase="$(pwd)/${dir}" export JAVA_HOME="${jdkhome}" if [[ ! -e "${tarball}" ]] ; then download "${url}" fi unarchive "${tarball}" "${dir}" cd "${dir}" case "$(uname)" in (Darwin) sed -e 's^"/usr/"^"'"${jdkhome}/"'"^' \ <customizations.lisp.in >customizations.lisp ;; (*) sed -e 's^"/home/peter/sun/jdk1.5.0_16/"^"'"${jdkhome}/"'"^' \ -e 's/fastjar/jar/' \ <customizations.lisp.in >customizations.lisp ;; esac chmod 755 ./build-from-lisp.bash printi 'Building abcl from lisp with ccl' ./build-from-lisp.bash ccl > "${logbase}".build-from-lisp.log 2>&1 \ && ( printi 'Installing abcl' ; install -m 755 abcl "${PREFIX}"/bin/ > "${logbase}".make-install.log 2>&1 ) \ || printe 'Compiling abcl failed; check the logs.' } since errors aren’t detected, but just suspend the execution indefinitely. Therefore, I would suggest to wrap those progn forms into a handler-case; for example, in the case of ccl: (handler-case (progn $3 (ccl:quit)) (error (err) (princ err *error-output*) (terpri *error-output*) (finish-output *error-output*) (ccl:quit 1))) -- __Pascal J. Bourguignon__

2 1

Re: ABCL efficiency and build settings
by Mark Evenson 27 Nov '18

27 Nov '18

> On Nov 22, 2018, at 06:54, ThutmoseIII Thoth <thutmosethree(a)gmail.com> wrote: […] > How well do these debugging/profiling facilities work with ABCL? Will I be able to find out the name of lisp functions being called during a profile or only Java functions? CCL has this problem where we cannot get the lisp functions names in profiling, only the objective C methods. The inspectability of the JVM call stack is certainly better than Clojure even from just reading the function names. Using a [customized version of SLIME][1] allows the use the [ABCL-INTROSPECT][2], which is probably the most advanced way of debugging ABCL. [1]: https://github.com/easye/slime/tree/evenson-20170914a [2]:https://gitlab.common-lisp.net/abcl/abcl/tree/master/contrib/abcl-intros… As for your suspecting that your application is spawning more threads than you would expect, from your code snippet I can’t really offer much other than to wonder what the definition on the DISCONNECT involves. Again providing an example of code, even a stripped down toy application that demonstrates the problem would be enoromously more useful for me to help out. — -- "A screaming comes across the sky. It has happened before but there is nothing to compare to it now."

2 2

ABCL efficiency and build settings
by ThutmoseIII Thoth 15 Nov '18

15 Nov '18

Greetings ABCL developers! I have built an application with ABCL and am very pleased with both ABCL and my application, but I would like some help and suggestions in terms of the efficiency of my program, building settings, and perhaps JVM tuning. In the OS X Activity Monitor, my application is reporting to be using 29 threads and 200% of the CPU — This is enough to make my computer HOT to the touch! The equivalent program was running with CCL and cocoa at about 70% CPU and about 10 threads and was not hot to the touch… My program is fairly simple in that it just displays images in a JFrame that it gets from bytes over a socket. For this program I decided to handle each socket and display on its own thread, so I’ve only created two additional threads. I “built” the program by compiling all the .lisp files into .abcl files, then writing a tiny Java main function which creates an Interpreter and loads each .abcl file and finally calls Interpreter.eval on a lisp function which starts the program. I am using the Oracle Java 1.8 Hotspot JVM and ABCL 1.5.0 built from source. Thank you and please write back with suggestions and questions that will help me make my program run more efficiently.

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