October 2011 - Pharo-dev - lists.pharo.org

[Pharo-project] Pharo Sprint at Smalltalks Conference 2011 Fwd: [clubSmalltalk] Smalltalks 2011 => Eventos Relacionados
by Mariano Martinez Peck Oct. 18, 2011

Oct. 18, 2011

Hi guys. Remember there will be a Pharo Sprint just before Smalltalks Conference. If you want to attend, please contact Guillermo Polito at: guillermopolito<at>gmail<dot>com cheers ---------- Forwarded message ---------- From: Gabriela Arevalo (gmail) <gabriela.b.arevalo(a)gmail.com> Date: 2011/10/18 Subject: [clubSmalltalk] Smalltalks 2011 => Eventos Relacionados To: clubsmalltalk(a)googlegroups.com Hola a todos, Les recuerdo que este aÃ±o, ademÃ¡s de las charlas de intro a Smalltalk, este aÃ±o tendremos un Pharo Sprint el MiÃ©rcoles 2/11 en la Universidad Nacional de Quilmes. Aquellos interesados deben completar el siguiente formulario: https://spreadsheets.google.com/spreadsheet/viewform?formkey=dHlKdUdvYnF3c3… o contactar a Guillermo Polito (guillermopolito<at>gmail<dot>com Espero verlos a todos en Smalltalks 2011 en la Universidad Nacional de Quilmes. Saludos, Gabi -- To post to this group, send email to clubSmalltalk(a)googlegroups.com To unsubscribe from this group, send email to clubSmalltalk+unsubscribe(a)googlegroups.com http://www.clubSmalltalk.org -- Mariano http://marianopeck.wordpress.com

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[Pharo-project] [update 1.4] #14199
by StÃ©phane Ducasse Oct. 18, 2011

Oct. 18, 2011

14199 ----- - Issue 4916: Fixing FlatBrowser after double list introduction. http://code.google.com/p/pharo/issues/detail?id=4916 Stef

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Re: [Pharo-project] IS Smalltalk Source also an object?
by Marcus Denker Oct. 18, 2011

Oct. 18, 2011

On Oct 17, 2011, at 10:25 AM, Guido Stepken wrote: > Hi, there! > > I had a nice conversation about Smalltalk among software architects: > > I claim smalltalk to be the only programming system, where source is an object too, with all advantages and disadvantages! > > Am i right? > No, source is ascii text in Smalltak, and it's on the disk even. The only thing that is objects are classes and methods. Below of a full method, the reflective model stops. (you can ask the compiler to make an AST from the dead code on disk, but that model is not causally connected and thus not reflective, and it's only there when you create it. This you can do in any language, though). Of course it is interesting what happes when one fixes that... "Sub-Method Reflection": http://www.jot.fm/issues/issue_2007_10/paper14.pdf Marcus -- Marcus Denker -- http://marcusdenker.de

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Re: [Pharo-project] zinc mailing list
by Sven Van Caekenberghe Oct. 18, 2011

Oct. 18, 2011

Hello Scott, On 18 Oct 2011, at 13:25, Scott Sproule wrote: > I wanted to send a note to a zinc mailing list about Amazon SES using zinc and the stunnel configuration. Thanks for using Zinc. > I was uncertain about the correct list.. Can you suggest one? There is no mailing list for Zinc HTTP Components, if it is not too much trouble, you can use the Pharo list which I am reading every day (see CC). > Bottom line is that I spent about a day trying to get amazon ses working with zinc. I kep on getting authorization failed and was concerned that the Amazon signature was wrong and spent a long time working with hash and hmac functions. THe solution was simpler... I had to add the header Host at put 'email.s-east-1.amazon.com > > I think becuase of the url using the stunnel messed up the host value... > > see below: > > I had to add the following: > > PARAMETERS > params at: 'AWSAccessKeyId' put: credentials accessKey; > at: 'TimeStamp' put: credentials dateRFC1123; > at: 'Version' put:'2010-12-01'; > at: 'Signature-Version' put: '2'; > at: 'SignatureMethod' put: 'HmacSHA256'; > at: 'Action' put: self action. > > client := (ZnNeoClient new) > url: 'http://127.0.0.1:20011/'; > headerAddAll: credentials getHeaders; > headerAt: 'Host' put: 'email.us-east-1.amazonaws.com'. > self client > formAdd: 'Destination.ToAddresses.member.1' -> aDestination; > formAddAll: self parameters. > self client post. > ^self client I think I more or less understand. Indeed, when you go through stunnel, Zn will put 'localhost' in the Host: header, while AWS will be unhappy with this. It also might be important for the actual signature (I don't remember if Host: is included). Thanks for the feedback, this might safe others a lot of time ! Is your code available somewhere on SqueakSource ? I assume that you saw the 'Zinc-AWS' example that I did some time ago ? Regards, Sven

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[Pharo-project] Open PhD positions at Software Composition Group - University of Bern
by Oscar Nierstrasz Oct. 18, 2011

Oct. 18, 2011

Applications are invited for a PhD candidate at the Software Composition Group, University of Bern, Switzerland. The Software Composition Group carries out research in software analysis and programming language design and implementation, with a view to enabling software evolution. The SCG is led by Prof. Oscar Nierstrasz and is part of the Institute of Computer Science and Applied Mathematics (IAM) at the University of Berne. Details about ongoing reserach projects can be found online: http://scg.unibe.ch/research.html The candidate must have a MSc in Computer Science (equivalent to a Swiss MSc), should demonstrate strong programming skills, and have research interests in several of the following areas: software evolution program understanding software modeling model-driven engineering reverse engineering domain specific languages dynamic analysis integrated development environments programming language design virtual machine technology To apply, please send an email including your CV to Prof. Oscar Nierstrasz (oscar(a)iam.unibe.ch)

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[Pharo-project] Pharo Issue 4910
by Sven Van Caekenberghe Oct. 18, 2011

Oct. 18, 2011

Hello Laurent, Regarding Pharo Issue 4910, http://code.google.com/p/pharo/issues/detail?id=4910 Did you see my reply ? Did you get any further ? I would really like to solve this problem. I have described it before, but here is what I think happens: - you start the ZnZincServerAdaptor, which implies creating a listener socket and process - you test it to see if it is running by doing one or more requests - this means that at least one connection and worker process are alive - you save the image - the server receives a shutdown and stops cleanly - since this is a ZnMultiThreadedServer and not the experimental ZnManagingMultiThreadedServer it leaves the connection and the worker process alone - you restart the image - the server receives a startup and starts working - the worker process is revived and will continue its blocking read for the next request - this signals a primitive failed and causes a hang/crash Now, using the lastest Zn, the primitive failed should be caught and the connection and worker should be cleaned up silently, unless there is also a VM problem, but I don't think so. (It would also be possible to make sure that no open connections are alive, close the browser that you used, check the Process Monitor) Another option is to use the experimental ZnManagingMultiThreadedServer which does track its own connections and cleans them up, which should result in the worker processes stopping cleanly. The next code requires the very latest Zinc-Seaside adaptor, you could try: ZnZincServerAdaptor new port: 8080; serverClass: ZnManagingMultiThreadedServer; start; yourself Regards, Sven

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Re: [Pharo-project] Website RSS feed broken?
by Marcus Denker Oct. 18, 2011

Oct. 18, 2011

On Oct 18, 2011, at 1:28 PM, Stefan Marr wrote: > Hi: > > On 31 Aug 2011, at 08:49, Max Leske wrote: > >> I'll check if this might be a cmsbox bug. Since Adrian's Blog is also affected, this might well be the case. I'll keep you posted. >> >> Max > > It is still broken! > I think we should install some real blog software... Marcus -- Marcus Denker -- http://marcusdenker.de

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[Pharo-project] RFB looks terribly broken
by Bernat Romagosa Oct. 18, 2011

Oct. 18, 2011

Hi list, I'm not able to develop remotely using the RFB server anymore. The image just dies all the time. Examples of behaviours that trigger the crash: - Right-clicking on a Workspace - Saving a method in a Browser, then selecting another method in the same Browser Any ideas on why is this happening? The same exact image (with the RFB server also running and the same VM) works okay locally, but when I access it remotely it becomes unusable. Here's my config: 'Pharo1.3' (one click) 'Croquet Closure Cog VM [CoInterpreter VMMaker-oscog-IgorStasenko.123]' Debian 6.0 Cheers! -- Bernat Romagosa.

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[Pharo-project] Stories for Pharo News Blog and Success Stories
by Marcus Denker Oct. 18, 2011

Oct. 18, 2011

Hi, We should try to post something every week to the Pharo news blog. One interesting kind of content are projects done with Pharo. So if you have something to share: we would be interested in -> short text that describes the project -> URL to website -> a cool screenshot Especially interesting are of course for one commercial projects (Things like http://www.t3-platform.net) The other class I like are Research Projects. They are always fun and force us to think and dream. http://www.languageoflanguages.org is a nice example. Third: Infrastructure. Like the new http://jquerymobile.seasidehosting.st So if you have ideas --> send a mail. Best would be finished small articles to ready to post. -- Marcus Denker -- http://marcusdenker.de

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Re: [Pharo-project] RFB looks terribly broken
by Marcus Denker Oct. 18, 2011

Oct. 18, 2011

On Oct 18, 2011, at 9:43 AM, Bernat Romagosa wrote: > Great! Just evaluated: > > MorphicUIManager new beDefault. > > And I can work remotely again! > > Even if this is a bit of a dirty workaround, maybe it'd be justified to add it to (for example) RFBSession >> initialize, having it check if we are running headless and, if so, evaluating that line. I'd guess many users are going to run into this issue... how else would one access a headless image if not via RFB, until Coral can handle debugging and Monticello? ;) > Adding a debugger to coral is one idea for the future. Another is true remote development and debugging. We will slowly get there... Marcus -- Marcus Denker -- http://marcusdenker.de

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