December 2012 - Pharo-dev - lists.pharo.org

[Pharo-project] Pharo Association
by Marcus Denker Dec. 3, 2012

Dec. 3, 2012

Hello, We are happy to announce the Pharo User Association: http://association.pharo.org The goal of the Pharo User Association is to support Pharo development and promotion. There are two individual memberships - Individual Pharo Association Member: Yearly fee 40 Euros - Golden Individual Pharo Association Member: Yearly fee 99 Euros You will get - reduction access to pharo conferences, - reduction for training and access to teaching material, - be part of the pharoAssociation-individual-members mailing-list, - an account at the pharo association web site. This Association is complementary to the Pharo consortium managed by INRIA. The Consortium is for entities such as companies, research teams, or institutes. For more information, see: http://www.pharo-project.org/community/consortium The funds collected by the Association will be used in coordination with the Consortium to support the development of Pharo. The Pharo Board and Pharo Core Team.

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[Pharo-project] New Cog VMs available
by Eliot Miranda Dec. 3, 2012

Dec. 3, 2012

...in http://www.mirandabanda.org/files/Cog/VM/VM.r2628. These fix a bug with pc mapping that could cause the Vm to crash on simple loops containing arithmetic on constants (e.g. 1 to: 20 do: [:i| 1=1]). They also cause the instantiation primitives to pop all their arguments rather than assume their argument count is 0 or 1. More change info available in the directory. -- best, Eliot

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Re: [Pharo-project] CI server down?
by Sebastian Nozzi Dec. 2, 2012

Dec. 2, 2012

Re-forwarding to the list. Might be useful. 2012/12/2 Camillo Bruni <camillobruni(a)gmail.com>: > With a change of repeating myself, this is the main use case of http://pharo.gforge.inria.fr/ci > > wget --quiet -qO - http://pharo.gforge.inria.fr/ci/ciPharo20NBCog.sh | sh > > ./vm.sh Pharo.image save $JOB_NAME > > REPO=http://squeaksource.com/Athens > ./vm.sh $JOB_NAME.image config $REPO ConfigurationOfAthens --install=1.4 > ./vm.sh $JOB_NAME.image test --junit-xml-output "Athens-.*" > > => Zero-Conf setup with the latest VMs and the Latest images > > On 2012-12-02, at 19:03, Sebastian Nozzi <sebnozzi(a)gmail.com> wrote: >>> so don't use it to get images. All images and VMs are available offsite at >>> http://pharo.gforge.inria.fr/ci/ >> >> Cool, that's *exactly* what I was using it for... thanks for the tip! :-) >

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Re: [Pharo-project] just help :)
by dimitris chloupis Dec. 2, 2012

Dec. 2, 2012

" * Framework for inter-image communication (over Internet). I am hoping that somebody else takes on this. ThereÂ were rumors about such a project, but I didn't hear anything about the guy in a while. This would allow to do real-time collaboration over Internet, to play games, etc. Sebastian Sastre is interested in this, but for Amber Smalltalk (running on the web). * Framework for seamless data/object-synchronization. I suggested this a while ago, didn't get much response. I don't blame anyone, there is not much need for this right now. What I would want is to be able to modify certain objects in my image, while offline, and connect to the Internet, and these objects be synchronized between other images. This way Internet-enabled apps could be built on top of Pharo in a better way that web-apps are built now (because, in Pharo you can not hit F5 and get fresh data ;-). But this is low-priority for me." Take a look at Spoon. Currently Available for Squeak only, its author , Craig is currently porting it to Pharo too. Its a system that communicates object between images in bytecode level , locally and remotely and even version controls them. http://netjam.org/spoon/ There is also Fuel which is a already very well known Pharo library again for serializing bytecode. Actually you just touched 2 areas that deeply interest me and I think most of the Pharo community. Games depend a lot on graphic engines , that is also the focus of my project, hence my interest in Athens. So yes I don't think we are as apart as you may think.

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[Pharo-project] Getting started with Athens
by Vanessa PeÃ±a Araya Dec. 2, 2012

Dec. 2, 2012

Hi, I'm trying to get started with Athens but I'm having the following errors:<https://ci.lille.inria.fr/pharo/view/Cog/job/NativeBoost-Cog-VM/Architectur…> Pharo 1.4, loaded last version configurationOfAthens: 'failed to get a symbol address: cairo_image_surface_create' I also tried in this in a 2.0 image and I got the same error. I'm trying with this VM: https://ci.lille.inria.fr/pharo/view/Cog/job/NativeBoost-Cog-VM/Architectur… Any help, please? :) Thanks, Vanessa.

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[Pharo-project] Redline Smalltalk on heroku ....
by James Ladd Dec. 2, 2012

Dec. 2, 2012

Redline Smalltalk is easily deployed to Heroku, a cloud service. So writing web apps in Smalltalk and deploying them to the could just got a whole let easier. https://stout.herokuapp.com/ Please support the Redline project here: http://www.indiegogo.com/smalltalk/x/1366536 YES - We are providing classes to make deploying Pharo app to Redline a snap. Heroku work was done by Will Leinweber His github repo has the project and code.

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[Pharo-project] Combining Regular Monticello with Github/FileTree
by Sven Van Caekenberghe Dec. 2, 2012

Dec. 2, 2012

Hi, Before I get too frustrated trying, a quick question: is it possible to combine regular monticello with github/filetree ? I have STON both in ss3 as on github, but it seems I cannot compare my in-image ss3 version with a filetree/github repository on disk: it reports everything as changed (maybe due to meta data differences, I don't know). How do I know the difference between the ss3 version and the filetree version ? I guess I could just save the filetree version and let git decide ? But maybe, then everything will be different as well ? Sven -- Sven Van Caekenberghe http://stfx.eu Smalltalk is the Red Pill

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[Pharo-project] STON Update
by Sven Van Caekenberghe Dec. 1, 2012

Dec. 1, 2012

Hi, Based on feedback by Norbert Hartl, Stuart Herring and Dale Hendrichs (thank you) I improved the current STON version a bit. http://ss3.gemstone.com/ss/STON https://github.com/svenvc/ston Changelog: A nasty cycle bug was fixed Performance was improved, especially for large structures. Some implementation changes (recursion done using a stack, stonProcessSubObjects: optimized using stonContainsSubObjects) I did some stress/performance testing/tuning. Using STONTestMap classTreeExtended. to generate a structure mimicing the class hierarchy, with objects for all classes, about 7000 in my image and all methods, about 64000 in my image, with super/subclass and method owner links to create cycles. This results in a 7 Mb .ston file. The normal code, serializes this in 28 seconds and materializes it in 11.5 seconds. The 'fast' versions (using ZnBuffered[Write|Read]Streams and Fuel Large Datastructures) does it in 1.1 and 3.8 seconds respectively. New users are always welcome. Sven -- Sven Van Caekenberghe http://stfx.eu Smalltalk is the Red Pill

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[Pharo-project] CogVM crash code
by Jon Anderson Dec. 1, 2012

Dec. 1, 2012

Hi all, I don't post to lists often, but I thought some of you might be interested in these few lines of code that crash the CogVM on both Linux and Windows. File-in the Smalltalk code below, then evaluate [nil crashCogVM]. The code uses [1-1] but it could use [1+1] or [56+98]. I put the code on nil, but that is not important either. I think the important thing is that the primitive (+ or -) is evaluated but the result is not assigned into any variable. Also important is that the code is put into a loop that I assume has been JIT optimized. The image I used is Pharo 1.4 one-click with latest update #14459. This code does not crash StackVM. Have fun! - Jon. !UndefinedObject methodsFor: 'crash' stamp: 'JonKAnderson 11/29/2012 17:26'! crashCogVM " Evaluate [ nil crashCogVM ]" | i | i := 20. 1 to: i do: [:d | 1-1 ] ! !

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[Pharo-project] About ArrayedCollection and at:/put:
by Igor Stasenko Dec. 1, 2012

Dec. 1, 2012

It says: "I am an abstract collection of elements with a fixed range of integers (from 1 to n>=0) as external keys." now that leaves me clueless, why then it does not defines (introduces) a protocol: #at: and #at:put: at least as an abstract one , i.e. subclassResponsibility is it because they are already in Object protocol? And because subclasses (like Array) using default #at: implementation? I don't know, but i think Object should not have #at:/#at:put: protocol.. because: - it applicable only to variable subclasses - many classes have own implementation of it - the behavior behind this is to access a variable fields . while other classes use this protocol for higher abstractions (like dictionaries) so, to my thinking, Object should not define this protocol.. for this purpose we having #basicAt:/put: methods. btw, just an idea to clarify things even more, we could rename them to variableAt: [put:] (or any other name which properly tells that method provides an access to variable fields of object). -- Best regards, Igor Stasenko.

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