- Pharo-users - lists.pharo.org

Re: [Pharo-users] Questions about JNIPort and CallBacks
by Joachim Geidel March 29, 2012

March 29, 2012

Hi Muriel, >I work in VisualWorks and I use JNIPort to interact with Java. >I try to search a forum about this subject but I don't find, so I >contact you because I can see all my java Object but I want to do >callback on Smalltalk >object. In VisualWorks, JNIPort supports callbacks from Java to Smalltalk, including callbacks coming from another operating system thread (a "foreign thread"). However, it is relatively complicated to install a callback. The complication comes from the fact that JNIPort was originally developed for Dolphin Smalltalk, where the handling of callbacks from external libraries is such that it can easily lead to deadlocks in Smalltalk. VisualWorks implements callbacks from external libraries differently, and some of the complications could probably be dismissed. Unfortunately, I never had the time to simplify the current implementation of callbacks in JNIPort for VisualWorks. There is some documentation about using callbacks in the JNIPort documentation which is contained in the file attachment JNIPort_Docs.zip of the JNIPort bundle. You can read this only at Chris Uppal's web site: http://www.metagnostic.org/DolphinSmalltalk/JNIPort/callbacks.html http://www.metagnostic.org/DolphinSmalltalk/JNIPort/callback-example-1.html Don't take the hints to the "problem with threads" in the documentation too seriously, they apply to Dolphin Smalltalk only AFAICT. The source code of the examples is in the file attachment JNIPort_Extras.zip of the JNIPort bundle. It is in the archive JNIPort-Tests.zip, file TreeModelExample.java. If you don't have the file attachments of the JNIPort bundle, you can either download them from the Download page of the JNIPort wiki at http://jniport.wikispaces.com, or load the bundle from the Cincom Public Repository. They should also be in the contributed/JNIPort subdirectory of the VisualWorks installation. HTH, Joachim

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Status of OmniBrowser, OBSystemBrowser in 1.4?
by Helene Bilbo March 28, 2012

March 28, 2012

What will be the status of OmniBrowser - and from my perspective not the Framework, but the OBSystemBrowser, but it's surely connected - in Pharo 1.4? I read at the Seaside list: "There are no plans in supporting OB in Pharo 1.4." On the other hand i recently saw OmniBrowser has new features and - of all things - a Google+ page: https://plus.google.com/106411970666264136741/posts Also there seem to be different versions, that from a user-perspective are not easily distinguisable? Can anyone who knows about it explain or update the CollaboractiveBook page: http://book.pharo-project.org/book/PharoTools/OmniBrowser/ The missing OBSystemBrowser is what stopps me from really using 1.4 at the moment. Best regards, Helene. -- View this message in context: http://forum.world.st/Status-of-OmniBrowser-OBSystemBrowser-in-1-4-tp450836… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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ContextS2 Updates
by Tim Felgentreff March 28, 2012

March 28, 2012

Because it's AOSD, I sat down and optimized ContextS2 somewhat (layered method executions should be around 3x faster than before ... which is still around 80x slower than non-layered methods on Cog). I also fixed the tests on Pharo 1.4 So, ContextS2 should now run from Squeak 4.2 onwards and on Pharo 1.4 If you use it and find problems, please report bugs! Enjoy, Tim

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[GSoC] Call for students
by Janko MivÅ¡ek March 28, 2012

March 28, 2012

Dear Students, Now it is your turn! You will have to register in our website first [1], put there some information, show interest for the projects and contact the project mentors. After the registration step you will get all the mentors information in order to contact them. By pressing the button on the project, you will show your interest. This is not something formal yet. Of course you can propose your own project too. In this case write a proposal in a format other projects have and send it to admins (see the email on the bottom). Our mentors will vote for the most interesting projects and in the middle of the voting Google will tell us, how many projects will actually be funded. Voting will happen in April, with final results expected at the end of April. At that time you will finally know if you are accepted or not. Of course, there can be many students interested per project. This means that interest for this project is high, but on the other side a chance that you will be chosen is lower. It is up to you to convince a mentor that you are the best! Note also that the Ideas page is deprecated. On ideas page just the project ideas were collected. Now, we are preparing the real projects. So, please from now on always refer to this link for the projects: http://gsoc2012.esug.org/projects So, the initial steps are: 1. Register on our special Smalltalk GSoC website (with your Google account!): http://gsoc2012.esug.org/admin?view=loginGoogle 2. Edit your profile to get some more contact information for mentors to let you know, 3. Fulfill your brief Biography page (see Biography tab on profile), 4. Go to Projects page, choose up to three projects and click there 'I'm interested' button, 5. Contact and discuss with project mentors about your interest. Subscribe also to a special mailing list [2] where we will help you with further steps. Deadline: as soon as possible, because the deadline to register on official GSoC website [3] is 6.April, which is, well, soon! But about that later... Finally, we will really appreciate if you can help us to distribute this call for students. One of our goals is to increase the Smalltalk community. Those who have access to universities can distribute this among the students. [1] http://gsoc2012.esug.org [2] Students mailing list: http://groups.google.com/group/smalltalk-gsoc-students [3] Official GSoC website http://www.google-melange.com/gsoc/homepage/google/gsoc2012 Good luck! Janko & Carla --- GSoC Admin Team smalltalk.gsoc(a)gmail.com http://gsoc2012.esug.org -- Janko MivÅ¡ek Aida/Web Smalltalk Web Application Server http://www.aidaweb.si

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Hello newcomers :)
by StÃ©phane Ducasse March 27, 2012

March 27, 2012

The pharo mailing-list is regularly attracting some newcomers and I would like to welcome them :) So welcome. We really want to improve the system so your contribution are welcomed. Now the first contribution you can do is to sign the license http://www.pharo-project.org/community/how-to-contribute http://www.pharo-project.org/license So welcome guys! Do not hesitate to let us know what you are doing and how we can improve the system and let you invent your future :) Stef

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IWST'2012 CFP - International Workshop on Smalltalk Technologies
by Alain Plantec March 26, 2012

March 26, 2012

Apologies for multiple receptions. ------------------------------------------------------------------------ IWST @ ESUG 2012 International Workshop on Smalltalk Technologies Pending ACM In-Cooperation August 28th, 2012 Gent, Belgium http://www.esug.org/wiki/pier/Conferences/2012/International-Workshop---IWS… ------------------------------------------------------------------------ ESUG 2012 Smalltalk joint event IMPORTANT DATES * Submission deadline: June 15, 2012 * Notification deadline: July 15, 2012 All accepted papers will be published in ACM DL, and the authors of the best papers will be invited to submit an extended version to a journal special issue (To Be Confirmed). GOALS AND SCOPE The goals of the workshop is to create a forum around advances or experience in Smalltalk and to trigger discussions and exchanges of ideas. Participants are invited to submit research articles. We will not enforce any length restriction. However we expect papers of two kinds: * Short position papers describing emerging ideas. * Long research papers with deeper description of experiments and of research results. TOPICS We welcome contributions on all aspects, theoretical as well as practical, of Smalltalk related topics such as: * Aspect-oriented programming, * Design patterns, * Experience reports, * Frameworks, * Implementation, new dialects or languages implemented in Smalltalk, * Interaction with other languages, * Meta-programming and Meta-modeling, * Tools PUBLICATION Both submissions and final papers must be prepared using the ACM SIGPLAN 10 point format. Templates for Word and LaTeX are available at http://www.acm.org/sigs/sigplan/authorInformation.htm; this site also contains links to useful informations on how to write effective submissions. Program chairs: LoÃ¯c Lagadec and Alain Plantec (LabSticc/CNRS, University of Brest, France) Program committee Gabriela Arevalo LIFIA, University of la Plata, Argentina Alexandre Bergel University of Chile Andrew P. Black Portland State University, US Marcus Denker Rmod, INRIA Lille - Nord Europe, France Luc Fabresse Ecole des Mines de Douai, France, Tudor Girba CompuGroup Medical Schweiz, Switzerland Andy Kellens Software Languages Lab, Vrije Universiteit Brussel, Belgium MickaÃ«l Kerboeuf LabSticc, University of Brest, France Jannik Laval LaBRI, University of Bordeaux, France Mariano Martinez Peck Ecole des Mines de Douai, France, Lukas Renggli Google, US Jorge Ressia Software Composition Group, University of Bern, Switzerland Bastian Steinert HPI, Software Architecture Group, Germany Hernan Wilkinson 10Pines, IT consultancy, Buenos Aires, Argentina Roel Wuyts IMEC Leuven, Belgium

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Arduino from 1.4
by Luc Fabresse March 23, 2012

March 23, 2012

Hi all, @Ricardo, I tried to load the arduino package using you MetacelloConfig and it seems that it misses a dependency to RB perhaps you tried in Pharo 1.3 which includes it. is this dependency mandatory? maybe it would be great to update the ConfigurationOfArduino. I managed to load it in 1.4 using: Gofer it squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfRefactoringBrowser'; load. ((Smalltalk at: #ConfigurationOfRefactoringBrowser) project version: #stable) load. Gofer it squeaksource: 'MetacelloRepository'; package: 'ConfigurationOfArduino'; load. (Smalltalk at: #ConfigurationOfArduino) load. @Hubert and Robin, now you can make it work for real on the arduino board ;-) #Luc

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I went to Biloxi and all I got was a Tshirt (Chris Cunnington)
by Dale Henrichs March 23, 2012

March 23, 2012

If you haven't seen them already, check out Chris Cunnington's posts on the Squeak list covering his notes and observations on the STIC conference that was held this week in Biloxi. Dale

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Defining Prerequisites in Packages
by Runar Jordahl March 23, 2012

March 23, 2012

I notice that it is possible to define prerequisites between packages using Metacello. However, I have not found a way to specify prerequisites directly in packages themselves. Is it correct that there is no mechanism available for defining prerequisites on Pharo packages? Are there any projects that will try to address the lack of prerequisite information on packages? Will for example âRingâ include this? I have made a tool for visualizing dependencies between VisualWorks packages. In VisualWorks the prerequisite information is found directly at instances of classes representing package versions (PackageModel). The tool mixes visualization of the defined/specified prerequisites and computed/calculated prerequisites. I think I once read about a tool for Pharo to compute/calculate prerequisites. Does anyone know which tool this is? Information about my VisualWorks dependency tools can be found here: http://blog.epigent.com/2012/03/analyze-dependencies-in-visualworks.html I am using Pharo 1.4 together with the Nautilus browser. Kind regards Runar Jordahl

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Pharo Dynamic play with Morphic UI Construction videos..
by S Krish March 22, 2012

March 22, 2012

Great fun playing with and building a moderately complex beginners UI. http://picasaweb.google.com/skrishnamachari/Pharo_Dynamic_UI Builds up over the 5 videos to move from simple forms to complex form and a runtime integration instantly... Borrowing from Bret Taylor's .. dynamic UI construction, not that jazz, but the overall feel is the same responsive just in time UI construction feedback cycle.. I guess time to rest my dirty hack hat, and don a professional one to deliver the promise of updated framework that does this, within the next week or two max...

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