- Pharo-users - lists.pharo.org

Pharo on Raspberry Pi 2

by Thierry Goubier

Hi all, given this announcement, what would this mean for Pharo on the Raspberry Pi 2? Thierry http://www.raspberrypi.org/raspberry-pi-2-on-sale/ Let's get the good stuff out of the way above the fold. Raspberry Pi 2 is now on sale *for $35* (the same price as the existing Model B+), featuring: - A 900MHz quad-core ARM Cortex-A7 CPU (~6x performance) - 1GB LPDDR2 SDRAM (2x memory) - Complete compatibility with Raspberry Pi 1 Because *it has an ARMv7 processor*, it can run the full range of ARM GNU/Linux distributions, including Snappy Ubuntu Core, as well as Microsoft Windows 10.

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Guillermo Polito

Well yes, but GCs are happening all the time :). So the problem is that someone is keeping a strong reference on the symbol. I tried the following: - create a method named #unusedUnexpectedMessage: That came up in the auto completion, ok - remove it: Still in auto completion - force GC a looot: still in auto completion After chasing strong references I could clean up my image by doing: ChangeSet cleanUp: true. RecentMessageList cleanUp. 10 timesRepeat: [Smalltalk garbageCollect] First obvious thing: changesets and friends (lets also think about nautilus history that may do that) could keep strong references on symbols. Then the question is if that is correct or not... To me the problem is that the auto completion mechanism is pretty primitive and depends on all existing symbols instead of <the subset of symbols that could be messages>. Guille El Mon Feb 02 2015 at 12:05:49 PM, Sven Van Caekenberghe <sven(a)stfx.eu> escribiÃ³: > But weak refs are only killed after GC, right ? > > And even then... > > > On 02 Feb 2015, at 12:03, Guillermo Polito <guillermopolito(a)gmail.com> > wrote: > > > > It's the table that keeps the symbols and checks their uniqueness. > > > > but AFAIK the symbol table is weak. So probably it's the completion > mechanism that is keeping extra references... > > El Mon Feb 02 2015 at 11:52:28 AM, phil(a)highoctane.be < > phil(a)highoctane.be> escribiÃ³: > > Got the same problem here. > > > > Annoying when third parties have to do something in the environment as > they are shown things that do not exist. > > > > Where to look? What's the symbol intern table? > > > > Phil > > > > > > On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > > Probably by resetting the Symbol intern table. but no time to dive into > it now. > > Hi all, > > > > Code completition tools show class/method old names i've changed and no > longer use. How can i remove all unused (occurring nowhere in source code) > or unimplemented names? > > > > Best, > > Laura > > > > > > > > > > > > > > > > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Sven Van Caekenberghe

But weak refs are only killed after GC, right ? And even then... > On 02 Feb 2015, at 12:03, Guillermo Polito <guillermopolito(a)gmail.com> wrote: > > It's the table that keeps the symbols and checks their uniqueness. > > but AFAIK the symbol table is weak. So probably it's the completion mechanism that is keeping extra references... > El Mon Feb 02 2015 at 11:52:28 AM, phil(a)highoctane.be <phil(a)highoctane.be> escribiÃ³: > Got the same problem here. > > Annoying when third parties have to do something in the environment as they are shown things that do not exist. > > Where to look? What's the symbol intern table? > > Phil > > > On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > Probably by resetting the Symbol intern table. but no time to dive into it now. > Hi all, > > Code completition tools show class/method old names i've changed and no longer use. How can i remove all unused (occurring nowhere in source code) or unimplemented names? > > Best, > Laura > > > > > > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Guillermo Polito

It's the table that keeps the symbols and checks their uniqueness. but AFAIK the symbol table is weak. So probably it's the completion mechanism that is keeping extra references... El Mon Feb 02 2015 at 11:52:28 AM, phil(a)highoctane.be <phil(a)highoctane.be> escribiÃ³: > Got the same problem here. > > Annoying when third parties have to do something in the environment as > they are shown things that do not exist. > > Where to look? What's the symbol intern table? > > Phil > > > On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > >> Probably by resetting the Symbol intern table. but no time to dive into >> it now. >> >>> Hi all, >>> >>> Code completition tools show class/method old names i've changed and no >>> longer use. How can i remove all unused (occurring nowhere in source code) >>> or unimplemented names? >>> >>> Best, >>> Laura >>> >> >> >> >> > > > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by Sven Van Caekenberghe

Maybe try Symbol compactSymbolTable But completion could do its own caching, I don't know. > On 02 Feb 2015, at 11:44, stepharo <stepharo(a)free.fr> wrote: > > Probably by resetting the Symbol intern table. but no time to dive into it now. >> Hi all, >> >> Code completition tools show class/method old names i've changed and no longer use. How can i remove all unused (occurring nowhere in source code) or unimplemented names? >> >> Best, >> Laura > >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by phil＠highoctane.be

Got the same problem here. Annoying when third parties have to do something in the environment as they are shown things that do not exist. Where to look? What's the symbol intern table? Phil On Mon, Feb 2, 2015 at 11:44 AM, stepharo <stepharo(a)free.fr> wrote: > Probably by resetting the Symbol intern table. but no time to dive into it > now. > >> Hi all, >> >> Code completition tools show class/method old names i've changed and no >> longer use. How can i remove all unused (occurring nowhere in source code) >> or unimplemented names? >> >> Best, >> Laura >> > > > >

Feb. 2, 2015

Re: [Pharo-users] Small Chat App

by stepharo

Luc please keep the different versions because it can be quite cool to teach and compare solutions. Le 1/2/15 15:30, Luc Fabresse a Ã©crit : > Hi all, > > Raining sunday ;-) > > Images intÃ©grÃ©es 1 > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > "In Pharo 3.0" > Gofer it > smalltalkhubUser: 'LucFabresse' project: 'Grimoire'; > package: 'ChatApp'; > load. > > ChatApplication startLocalExample. > ChatApplication stopLocalExample > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > This a 1st draft version of a Chat Application that works. It is > implemented in plain Socket with an ad hoc text protocol. > > a *lot* should be improved, done or added: > > - write tests (it is always a pain to write for client/server apps so > here I skip them :-() > - ensure that everything is correctly destroyed/cleaned (processes, > sockets, streams, ...). it seems but... needs testing > - refactor to use SocketStream? > - better modularization of commands > - another implementation using Zinc but it would imply using HTTP > > Enjoy, > > Luc >

Feb. 2, 2015

Re: [Pharo-users] Cleaning code completition's namespace

by stepharo

Probably by resetting the Symbol intern table. but no time to dive into it now. > Hi all, > > Code completition tools show class/method old names i've changed and > no longer use. How can i remove all unused (occurring nowhere in > source code) or unimplemented names? > > Best, > Laura

Feb. 2, 2015

Internship at Thales

by Marcus Denker

There is an offering at Thales for an internship for a student (in france): > Thank you for your interest in a career with Thales. Below you will find a link to the job that you found on the mobile website. When clicked, this link will allow you to view the job details again and Apply for the job. > > > STAGE Multi fenÃªtrage sous Pharo Smalltalk (Logiciel) (H\F) <http://jobs.thalesgroup.co.uk/fr/france/software-engineering/jobid6338665-s…> Job ID: 1413963 Job Location: Brest, Bretagne, France Position Type: Software Engineering Business Unit: Thales Systemes Aeroportes S.A. Post Date: 01/12/2015 Partout oÃ¹ des dÃ©cisions critiques doivent Ãªtre prises, Thales est prÃ©sent. Sur les marchÃ©s que nous servons -Â aÃ©ronautique, espace, transport terrestre, sÃ©curitÃ©, dÃ©fenseÂ -, nous assurons la maÃ®trise de la Â« chaÃ®ne de dÃ©cision critique Â» pour aider nos clients Ã choisir la meilleure option et Ã agir en consÃ©quence. Lâexpertise de sesÂ 65 000 collaborateurs, sa puissance technologique et sa prÃ©sence opÃ©rationnelle dansÂ 56 paysÂ font ainsi de Thales un acteur clÃ© de la sÃ©curitÃ© des citoyens, des infrastructures et des Etats. <> La Global Business Unit SystÃ¨mes de Mission de DÃ©fense, leader europÃ©en et troisiÃ¨me acteur mondial sur ses marchÃ©s par sa taille et son niveau technologique, conÃ§oit des Ã©quipements et des systÃ¨mes de mission pour avions, hÃ©licoptÃ¨res et drones militaires, bÃ¢timents de surface et lutte sous la mer. Elle propose Ã©galement une offre complÃ¨te de services de maintenance en condition opÃ©rationnelle. Thales SystÃ¨mes AÃ©roportÃ©s, filiale du Groupe Thales (3200 collaborateurs) regroupe diffÃ©rents domaines dâactivitÃ©s : systÃ¨mes de mission pour avions de mission et drones, Radars aÃ©roportÃ©s de combat et surveillance, SystÃ¨mes de Guerre Electronique (air, terre, mer, espace), Soutien et Service Client. Dans le cadre de notre dÃ©veloppement, nous recherchons un(e) : STAGE : Multi-fenÃªtrage sous Pharo Smalltalk (Logiciel) â H/F BasÃ©(e) Ã Brest (29) Contexte : Notre entitÃ© dÃ©veloppe rÃ©guliÃ¨rement des maquettes dâinterfaces homme-machine (IHM) innovantes. Lâinnovation se situe autant au niveau de lâergonomie quâau niveau du design graphique visuel ou des Ã©lÃ©ments dâinteraction. Le maquettage est souvent utilisÃ© en sÃ©ance avec les opÃ©rationnels, dâoÃ¹ lâemploi dâun langage dynamique comme Smalltalk qui permet la modification rapide (et en sÃ©ance) du code et des Ã©lÃ©ments dâinteraction. Le maquettage/prototypage des interfaces Homme-Machine est donc actuellement rÃ©alisÃ© sous SMOCK, un framework de maquettage dÃ©veloppÃ© en Smalltalk. Smalltalk Pharo est un excellent candidat pour la plateforme finale d'exÃ©cution du framework de maquettage/prototypage, cependant, certaines limitations de Pharo nous empÃªchent de l'utiliser de maniÃ¨re industrielle. Missions : Nous souhaitons expÃ©rimenter un environnement de maquettage sous Pharo, cependant, cette derniÃ¨re limite lâaffichage des IHM Ã lâintÃ©rieur d'une seule fenÃªtre de l'OS. Nous souhaitons, en relation avec la communautÃ© Pharo, dÃ©velopper le multi-fenÃªtrage. Le stagiaire devra implÃ©menter un mÃ©canisme permettant l'ouverture et gestion de fenÃªtres multiples dans les OS Windows et Linux Ã minima. Une rÃ©utilisation de code existant dans la communautÃ© Pharo et une reversion de code en OpenSource est envisageable. Le candidat sera l'interlocuteur entre Thales et la communautÃ© Pharo. Le candidat Ã©valuera diffÃ©rentes solutions de multi- fenÃªtrage sous diffÃ©rents critÃ¨res (performance, robustesse de la solution, portabilitÃ© de la solution...). La solution devra anticiper le futur et prÃ©voir d'afficher des contenus visuels variÃ©s (vidÃ©o, primitives de dessin 2D, OpenGL...). L'objectif sera de dÃ©velopper un prototype IHM multi-fenÃªtres de dÃ©monstration sur Pharo afin de dÃ©montrer les nouvelles capacitÃ©s et un aperÃ§u des performances. Formation souhaitÃ©e : Master 2 Pro ou 3Ã¨me annÃ©e d'Ecole d'IngÃ©nieur. Connaissances souhaitÃ©es : Le stagiaire devra avoir une connaissance du Smalltalk ou Ãªtre motivÃ© par lâapprentissage de celui-ci. Il devra ensuite Ãªtre motivÃ© par la conception dâinterface homme machine de nouvelles gÃ©nÃ©rations et novatrices. PÃ©riode souhaitÃ©e et durÃ©e : Ã partir de janvier 2015 pour une durÃ©e de 6 mois.

Feb. 2, 2015

Cleaning code completition's namespace

by Laura Risani

Hi all, Code completition tools show class/method old names i've changed and no longer use. How can i remove all unused (occurring nowhere in source code) or unimplemented names? Best, Laura

Feb. 1, 2015