October 2009 - Pharo-dev - lists.pharo.org

[Pharo-project] About FixedIdentitySet
by Nicolas Cellier Oct. 31, 2009

Oct. 31, 2009

I just noticed this: (FixedIdentitySet withAll: #(a b c)) = #(a a a). I presume that does not matter... FixedIdentitySet also make usage of identityHash - with a basicSize power of two - using bitAnd: rather than modulo (because of the size being power of two, that should be equivalent) I guess it works because used with small size only... Beware not using scaledIdentityHash then ! Shouldn't the read-only version really use an Array, up to a given size greater than 0 or 1 ?

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[Pharo-project] displayWorldAsTwoTone
by Niko Schwarz Oct. 30, 2009

Oct. 30, 2009

Hi list, sending displayWorldAsTwoTone to the global PasteUpMorph does not turn my screen black and white. That is because WorldState does not respond to #displayWorldAsTwoTone, as PasteUpMorph>displayWorldAsTwoTone expects. Cheers, Niko

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Re: [Pharo-project] Segmentation fault when starting pharo 1.0rc1 on Ubuntu 64bit server
by Paul DeBruicker Oct. 30, 2009

Oct. 30, 2009

Hi Hernan, Thanks for the recommendations. Here is the output of the core dump from gdb's bt command. paul@localhost:~$ cd ph paul@localhost:~/ph$ gdb squeak core GNU gdb (GDB) 7.0-ubuntu Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>... Reading symbols from /home/paul/ph/squeak...done. warning: Can't read pathname for load map: Input/output error. Reading symbols from /lib32/libutil.so.1...(no debugging symbols found)...done. Loaded symbols for /lib32/libutil.so.1 Reading symbols from /lib32/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib32/libdl.so.2 Reading symbols from /lib32/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib32/libm.so.6 Reading symbols from /lib32/libnsl.so.1...(no debugging symbols found)...done. Loaded symbols for /lib32/libnsl.so.1 Reading symbols from /lib32/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib32/libc.so.6 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.2 Core was generated by `./squeak deploy.image'. Program terminated with signal 11, Segmentation fault. #0 0xf7f4642f in __kernel_vsyscall () (gdb) bt #0 0xf7f4642f in __kernel_vsyscall () #1 0xf7ee8ff4 in ?? () from /lib32/libc.so.6 #2 0xf7e6f6e7 in sbrk () from /lib32/libc.so.6 #3 0xf7e1ada1 in __default_morecore () from /lib32/libc.so.6 #4 0xf7e17c1d in ?? () from /lib32/libc.so.6 #5 0xf7e19568 in malloc () from /lib32/libc.so.6 #6 0xf7e18f80 in calloc () from /lib32/libc.so.6 #7 0x08051f9d in main (argc=1310076, argv=0xf7f2a540, envp=0xf7f5aa10) at /home/bryce/squeak/exupery/platforms/unix/vm/sqUnixMain.c:1324 I don't know what to check next. Thanks for any help you can provide. Paul > Date: Thu, 29 Oct 2009 19:40:09 -0300 > From: Hern?n Morales Durand <hernan.morales(a)gmail.com> > Subject: Re: [Pharo-project] Segmentation fault when starting pharo > 1.0rc1 on Ubuntu 64bit server > To: Pharo-project(a)lists.gforge.inria.fr > Message-ID: > <70da5dd20910291540t17f92212he42d92b4d1d05666(a)mail.gmail.com> > Content-Type: text/plain; charset="utf-8" > > Paul, > You may verify if your Linux distribution has core dumping enabled: > > # ulimit -c unlimited > > and check if the directory where the VM resides is writeable. Once you run > again the VM and see "Segmentation fault (core dumped)", You may search the > dumped core with "file core" and run a gdb on it: > > $ gdb squeakvm core > > Inside gdb, the bt command will display a stack trace to see or mail out > detailed information about your SIGSEGV. > Cheers, > > Hern?n > > 2009/10/29 Paul DeBruicker <pdebruic(a)gmail.com> > >> Hi - >> >> Has anyone successfully run a newer version of Pharo on either Ubuntu >> 9.04 or Ubuntu 9.10 64 bit server? When I try to start the command >> line simply says "Segmentation fault" and does not emit a stack >> trace. The UUIDPlugin is named UUIDPlugin.bak. I am attempting to >> use the latest versions of pharo, pharo sources and both the pharo vm >> or squeak 3.11 vm from the pharo-project.org site. I have installed >> ia32-libs and I do know that the latest pharo runs on Ubuntu Desktop >> 9.04. >> >> If you have gotten it running, will you please send me the output of >> >> dkpg -l >> >> or a description of whatever you did to get it started? Thanks >> >> >> Also, I'd be happy to attempt other solutions or provide more >> information as I've tried what I know how to do and checked what I >> know to check. >> >> Thanks >> >> Paul >> >> _______________________________________________

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Re: [Pharo-project] Segmentation fault when starting pharo 1.0rc1 on Ubuntu 64bit server
by Paul DeBruicker Oct. 30, 2009

Oct. 30, 2009

Date: Thu, 29 Oct 2009 22:58:00 +0100 > From: Alain Plantec <alain.plantec(a)free.fr> > Subject: Re: [Pharo-project] Segmentation fault when starting pharo > Â Â Â Â 1.0rc1 on Â Â Â Ubuntu 64bit server > To: Pharo-project(a)lists.gforge.inria.fr > Message-ID: <4AEA0FE8.7000603(a)free.fr> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Paul, > > I'm using ubuntu 9.10 rc 64 (desktop version) since 7 days without any > problem. > Pharo run out of the box. > I send my dpkg -l result to you in private. > > Cheers > Alain > Hi Alain- Yes I also have it working on the Desktop version of Ubuntu 9.10 & 9.04. I'm having trouble with the server version. Thanks Paul

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[Pharo-project] Is serving files different in Pharo?
by Torsten Bergmann Oct. 30, 2009

Oct. 30, 2009

Mart-Mari Breedt wrote on Pharo list [1] > >I got the answer to my problem here: http://bugs.squeak.org/view.php?id=7397 > Why isnt the fix included into KomServer by default or the implementation in pharo changed by default? Pharo has: mimeType ^MIMEDocument guessTypeFromName: self name. The fix is mimeType ^MIMEDocument guessTypeFromName: self asUrl Should we or seaside dev care? Bye T. [1] http://lists.gforge.inria.fr/pipermail/pharo-project/2009-October/015314.ht… -- Neu: GMX DSL bis 50.000 kBit/s und 200,- Euro Startguthaben! http://portal.gmx.net/de/go/dsl02

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[Pharo-project] Is serving files different in Pharo?
by Mart-Mari Breedt Oct. 30, 2009

Oct. 30, 2009

Hallo, I have just install and started playing a bit with Pharo today. The first thing I tried was to take one of my Seaside projects from Squeak and see if I can get it going in Pharo? Everything went very smoothly, except for the following annoying problem - which I - rather embarrassingly - can't seem to figure out myself. Any help/hints/pointers will be greatly appreciated. For my Squeak/Seaside project I've subclassed WAKomEncoded and have overridden the createService selector to allow for a custom entry point and the ability to serve files from this point. createService | basePath seaside assembly | basePath := 'encore'. seaside := self entryPoint: (WADispatcher default setName: basePath). assembly := ModuleAssembly core. assembly serverRoot: FileDirectory default fullName. assembly alias: '/' , basePath to: [assembly addPlug: [:request | seaside process: request]]. assembly documentRoot: FileDirectory default fullName. assembly directoryIndex: 'index.html index.htm'. assembly serveFiles. ^ (HttpService startOn: port named: 'comanche') plug: assembly rootModule; yourself. The custom entry point still works fine, but for some strange reason none of my files are served correctly. Is there a different approach to serving files from within Pharo/Seaside that I should make use of? I have downloaded and used this Pharo package: pharo1.0-10491-rc1dev09.10.5.zip. And installed these additional packages: DynamicBindings-GiovanniCorriga.10.mcz KomHttpServer-GiovanniCorriga.50.mcz KomServices-gc.19.mcz OSProcess-dtl.53.mcz Seaside2.8a1-lr.594.mcz Scriptaculous-lr.250.mcz HTML5-mb.10.mcz Thanks in advance! Kind regards, Mart-Mari LTE USA â09, 4-5 November (non exhibitor) Click mailto:events@aircominternational.com?subject=LTE%20USA%20'09%20%20meeting%20request to book a meeting AfricaComâ09, 11-12 November stand C13, Cape Town, South Africa Click mailto:events@aircominternational.com?subject=AfricaCom%20meeting%20request to book a meeting Disclaimer: This e-mail message is confidential and should not be used by, or disclosed to, anyone except the addressee. If you receive this message in error, please advise the sender immediately.. Since e-mail transmission is not secure or error free, we do not accept responsibility for changes to any e-mail which occur after it has been sent. Attachments to this e-mail may contain software viruses which could damage your systems. You should therefore virus-check all attachments before opening. AIRCOM may monitor incoming and outgoing emails through its networks and by responding to this email, you consent to such monitoring. The views and opinions expressed in this e-mail are those of the author only and not of AIRCOM. We do not intend to enter into any legal commitments or contracts by e-mail. P Save a tree. Don't print this e-mail unless it's really necessary

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[Pharo-project] New Pharo based on core 10492
by Damien Cassou Oct. 30, 2009

Oct. 30, 2009

http://pharo-project.org/pharo-download -- Damien Cassou http://damiencassou.seasidehosting.st "Lambdas are relegated to relative obscurity until Java makes them popular by not having them." James Iry

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[Pharo-project] Segmentation fault when starting pharo 1.0rc1 on Ubuntu 64bit server
by Paul DeBruicker Oct. 29, 2009

Oct. 29, 2009

Hi - Has anyone successfully run a newer version of Pharo on either Ubuntu 9.04 or Ubuntu 9.10 64 bit server? When I try to start the command line simply says "Segmentation fault" and does not emit a stack trace. The UUIDPlugin is named UUIDPlugin.bak. I am attempting to use the latest versions of pharo, pharo sources and both the pharo vm or squeak 3.11 vm from the pharo-project.org site. I have installed ia32-libs and I do know that the latest pharo runs on Ubuntu Desktop 9.04. If you have gotten it running, will you please send me the output of dkpg -l or a description of whatever you did to get it started? Thanks Also, I'd be happy to attempt other solutions or provide more information as I've tried what I know how to do and checked what I know to check. Thanks Paul

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[Pharo-project] Abstract classes
by Alexandre Bergel Oct. 29, 2009

Oct. 29, 2009

Dear List, I was looking for a way to test whether a class is abstract or not. One easy way, is to check whether the class sends the message subclassResponsibility. This is not perfect, since we should also check whether the receiver is 'self' and this is the only statement in the method body. Looking at sender of #subclassResponsibiliy did not reveal anything. I propose to define the following method: Behavior>>isAbstract ^ self methods anySatisfy: [:cm | cm sendsSelector: #subclassResponsibility ] Shall I can create an issue and add a changeset? Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

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[Pharo-project] Code Critic
by Andrew P. Black Oct. 29, 2009

Oct. 29, 2009

Can someone please explain to me how to run code critic on a single class or a single package? I managed to run it (overnight) on Smalltalk. It found 70189 problems, many of them jaw-dropping. But I would like to focus it on my code! Andrew

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