March 2011 - Pharo-users - lists.pharo.org

SharedPool classVars
by Paul DeBruicker March 9, 2011

March 9, 2011

Do SharedPool classVars need to be wrapped in parenthesis? I'm messing around with porting Chronos to Pharo and Gemstone. It currently uses a number of shared pool dictionaries. I'm converting those to subclasses of SharedPool. In the package there is a large number of references to the classVars of the SharedPool. Almost everytime one is accessed I get a DNU or the value comes back as 'nil'. But if I wrap that particular reference in parenthesis the code works fine. So this doesn't work: addHours: hours ^self addSeconds: hours * SecondsPerDay But this does work: addHours: hours ^self addSeconds: hours * (SecondsPerDay) I do not want to track down every reference to every class var and wrap it in parenthesis. Is there something else I can try? Or is there a refactoring rewrite rule I can run to find all references to a SharedPool class var and wrap it in parens? Thanks Paul

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When a Pharocast goes too fast for me
by DougEdmunds March 9, 2011

March 9, 2011

1) I'm using a Windows box. Can't help with Mac or Linux. I downloaded the free GOMPlayer. http://www.gomlab.com/eng/ If I want a slower playing Pharocast, I download it, then view it in the GOMPlayer. The control panel has a nice set of buttons for faster/slower playback. -- View this message in context: http://forum.world.st/When-a-Pharocast-goes-too-fast-for-me-tp3342557p33425… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Pharocasts: Build a XML browser
by laurent laffont March 9, 2011

March 9, 2011

Watch this to learn how to: - get and parse XML - use Polymorph to build a GUI with a tree and text editor - add a button in Pharo IDE to open the XML browser - control when your breakpoints will trigger see http://www.pharocasts.com/2011/03/build-xml-browser.html Laurent Laffont - @lolgzs <http://twitter.com/#!/lolgzs> Pharo Smalltalk Screencasts: http://www.pharocasts.com/ Blog: http://magaloma.blogspot.com/

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Ubuntu
by Jeff Gray March 8, 2011

March 8, 2011

Hi all, I installed Pharo on a linux box yesterday. Some very strange mouse behaviour. In my workspace whenever I left clicked it selected an area and then after minimising and maximising it instead just bought up the System menu. I had downloaded the VM and sources file but for image and changes I used a file that I have been working on previously in Windows. Is that the problem? -- View this message in context: http://forum.world.st/Ubuntu-tp3334436p3334436.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Re: [Pharo-users] [Vm-dev] Re: Compiling cog 2363 in gentoo (amd 64)
by Panu Suominen March 8, 2011

March 8, 2011

2011/3/6 Levente Uzonyi <leves(a)elte.hu>: > 2363 is pretty unstable, it crashes a few seconds after startup on Ubuntu > 10.04. Try building from 2361, or use the prebuilt 2361 and remove > UUIDPlugin. Optionally you can try using my prebuilt version of the patched > plugin, which is available here: > http://leves.web.elte.hu/squeak/so.UUIDPlugin > You should rename it to UUIDPlugin after downloading. I should have removed the UUIDPlugin in the first place. That would have been much more faster. Now it took quite long to make a commit. :) When I left the -O2 switch image seems to run fine on me. About half hour and network access seems to work too. -- Panu

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Fwd: [SqueakDBX] Simple object pool 0.1.1 "released".
by Mariano Martinez Peck March 7, 2011

March 7, 2011

Thanks Panu. This is awesome. We will integrate your info in our website!! :) mariano ---------- Forwarded message ---------- From: Panu Suominen <panu.j.m.suominen(a)gmail.com> Date: Mon, Mar 7, 2011 at 8:28 AM Subject: [SqueakDBX] Simple object pool 0.1.1 "released". To: The complete and open-source solution to relational database access < squeakdbx(a)lists.squeakfoundation.org> Long time ago I mailed that I have started to build new pooling solution for objects because I could not find existing one with tests. Then I promised to improve documentation. It has taken quite long time but now I have created minimal documentation that should enable people to try my implementation. Currenlty it is nothing spectacular. Project can be found at http://www.squeaksource.com/ObjectPool.html the wiki there should get you started. If one has loaded GlorpDBX one could start using pool with following code to start pooling SqueakDBX connections: Gofer new squeaksource:'ObjectPool'; package:'ConfigurationOfObjectPool'; load. ((Smalltalk at: #ConfigurationOfObjectPool) project version:'0.1.1') load:#('default' 'dbx'). SqueakDatabaseAccessor DefaultDriver: OPSqueakDBXDriver. Currently OPSqueakDBXDriver does not restrict the amount of active or pooled connections. I will improve that soon. One can load basic pooling implementation without DBX-related stuff by just executing: ((Smalltalk at: #ConfigurationOfObjectPool) project version:'0.1.1') load. -- Panu _______________________________________________ SqueakDBX mailing list SqueakDBX(a)lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/squeakdbx

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Re: [Pharo-users] Simple plugin for Jenkins to run Pharo/Squeak VM images
by Marcus Denker March 7, 2011

March 7, 2011

On Feb 28, 2011, at 3:49 PM, StÃ©phane Ducasse wrote: > thanks panu > > did you see that we are heavily using hudson? > Is your code different? > We are actually not using a plugin but just call shell scripts on the server. (we use Lukas' scripts https://github.com/renggli/builder ) I know that Philippe did a plugin, too. I always wanted to look at how a plugin can even simplify the setup... (especially for simple cases), but this has been pushed down the TODO list... Marcus -- Marcus Denker -- http://www.marcusdenker.de INRIA Lille -- Nord Europe. Team RMoD.

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Add to website Re: [Pharo-project] Pharo-project weekly summary #4
by Mariano Martinez Peck March 7, 2011

March 7, 2011

Hi. These summaries are awesome. Can we link to them somehow from pharo web site? Maybe we can have two sections under news: one with what is now (the blog) and another one with this summaries (just a text explaining what it is and a link to the original website) cheers mariano On Sun, Mar 6, 2011 at 10:02 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr > wrote: > Yes! > > On Mar 5, 2011, at 10:16 PM, Tudor Girba wrote: > > > Thanks :) > > > > Doru > > > > > > On 5 Mar 2011, at 22:06, Francois Stephany wrote: > > > >> Hi guys, > >> > >> The summary for this week is out. Please comment if I said something > stupid or forgot something. > >> > >> http://articles.tulipemoutarde.be/pharo-mailing-list-weekly-summary-4 > >> > >> See you next week ;) > >> > > > > -- > > www.tudorgirba.com > > > > "From an abstract enough point of view, any two things are similar." > > > > > > > > > > >

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March 6, 2011

Hi guys in the train friday I read event code during a couple of hours... and I came to the conclusion I want to rewrite part of them :). Now the real interested part of this email is the following: 2 years ago event handling was looking mysterious to me, why? because I never needed to understand that part. Now I started to read, build hypothesis, read again, break the system and I get an understanding to the point I can say ok I want them better. So the lesson in there: this is cool, at the beginning you are not an expert, you just learn a little bit here and here and you consolidate, and you understand more and more. Sound stupid and naive story but this is a cool one. I like to read the code of the system just because I learn a lot. So I hope that this is a good and positive message for you. Step back and realize that you have learned a lot and that you can learn a lot more. And in the process fix the system to make it better and easier to be understood. Magic no? Stef

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Compiling cog 2363 in gentoo (amd 64)
by Panu Suominen March 6, 2011

March 6, 2011

So I hit the UUID problem that crashes VM and had to compile virtual machine from scratch to get rid of it. I assumed that to be easy job, but it took a while. To help others I document the steps I had to take to build revision 2363 of Cog vm on Gentoo (amd 64bit). 1) fetch sources from svn (svn export http://squeakvm.org/svn/squeak/branches/Cog cog-vm) 2) 32bit chroot environment. Just could not make it compile without it (http://www.gentoo.org/proj/en/base/amd64/howtos/index.xml?part=1&chap=2) 3) emerge xorg-x11 to 32bit environment. One could probably emerge something smaller but thid did the trick for plugin(s) requiring OpenGL. 3) configure as the unixbuild/HowToBuild guides. 4) add #define HAVE_UUID_H to configure.h under bld-directory. 5) change platforms/unix/plugins/UUIDPlugin/sqUnixUUID.c #include <uuid.h> -> #include <uuid/uuid.h> 6) make as the unixbuild/HowToBuild guides It is likely that these changes could (and should) be made to the source files and configuration script so that no manual steps would be required. However I did not have time to do it. But when I finnish all the pending tasks postponed by this sideroute I try to see if I could propose a patch. -- Panu

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