September 2013 - Pharo-users

Re: [Pharo-users] Pharo 2 problems that prevent me from using it in production was Re: RFB on 2.0 + linux - semaphore primitive failed

by Paul DeBruicker

On 09/04/2013 12:14 AM, Sven Van Caekenberghe wrote: > I totally agree: the why use RFB part and the remote browsing/debugging replacement part. On the other hand, if people want to use some library, that should be possible. > > The problem is this case is (again) that have a user (no offence Paul) of some external library that says 'I take a stock image + a library and it does not work in some specific case: pharo people help me please' while the maintainer of RFB is nowhere to be seen or heard of, let alone that he would be willing to take responsibility for how his/her software runs on recent Pharo image/vm/platform combinations - it _is_ a lot of work to maintain open source software. > > I looked a little bit at the RFB code: it is pretty OK AFAIKT, but it does hackery stuff with networking. And Paul's problem only occurs if you save an image with RFB connections open on Linux on a specific VM. It will require dedication to debug this.. > > Sven No offence taken. The RFB error happens without connections. It also happens on the Mac and XP using the VM's in those platforms' one-clicks from pharo-project.org in both Pharo 1.4 and Pharo 2. It does not happen using 1.4 and eliot's vm (2776). I've been using this VM for pharo 2 work: ~/pharo/pharo2.0$ ./pharo -version 3.9-7 #1 Wed Mar 13 18:22:44 CET 2013 gcc 4.4.3 NBCoInterpreter NativeBoost-CogPlugin-EstebanLorenzano.18 uuid: a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013 NBCogit NativeBoost-CogPlugin-EstebanLorenzano.18 uuid: a53445f9-c0c0-4015-97a3-be7db8d9ed6b Mar 13 2013 git://gitorious.org/cogvm/blessed.git Commit: 412abef33cbed05cf1d75329e451d71c0c6aa5a7 Date: 2013-03-13 17:48:50 +0100 By: Esteban Lorenzano <estebanlm(a)gmail.com> Jenkins build #14535 Linux linux-ubuntu-10 2.6.32-38-server #83-Ubuntu SMP Wed Jan 4 11:26:59 UTC 2012 x86_64 GNU/Linux plugin path: /home/paul/pharo/pharo2.0/bin [default: /home/paul/pharo/pharo2.0/bin/] Often (many more times than emails I write) I blame Pharo or Linux (or some random JS library I'm using) for being broken and 99% of the time I come to find that its just some dumb code I wrote that's broken. In this instance because the image locks up and I can't use the alt+. (or cmd + .) to break out of it to diagnose the problem I don't know what to do other than report it.

Sept. 4, 2013

Re: [Pharo-users] [Pharo-dev] Pharo Sprint in Buenos Aires

by Camillo Bruni

>From the doodle we're around 7, so I'd count with something like 10 people? And yes, I think internet connection is a requirement, at least for updating the issue tracker. On 2013-09-04, at 10:32, Nicolas Passerini <npasserini(a)gmail.com> wrote: > I think UTN is not a good idea for a Pharo sprint, because we will need a > good Internet connection and that can not be guaranteed here. > (Or correct me and tell me that Internet connection is not a must, so we > can meet here at UTN without problems). > > How much people is coming to the Sprint? > > > On Wed, Sep 4, 2013 at 10:12 AM, Sebastian Tleye <stleye(a)gmail.com> wrote: > >> The Pabellon 1 is closed on saturdays afternoon, but have you asked for >> Pabellon 2? I think it's open on saturdays (i don't know if it is possible >> to book a room) >> >> >> 2013/9/4 Guillermo Polito <guillermopolito(a)gmail.com> >> >>> Probably UTN? >>> >>> >>> On Wed, Sep 4, 2013 at 2:45 PM, Camillo Bruni <camillobruni(a)gmail.com>wrote: >>> >>>> So it looks like we are going to do the Pharo sprint in Buenos Aires >>>> Saturday, the 14th of September. >>>> The question is now where do we meet? >>>> The original idea was to reserver a room at the UBA, but that is not >>>> possible the weekend. >>>> Any suggestions? >>>> >>>> On 2013-09-03, at 09:05, Mariano Martinez Peck <marianopeck(a)gmail.com> >>>> wrote: >>>> >>>>> Cool. I'll be there, of course! >>>>> Keep us informed. >>>>> Cheers, >>>>> >>>>> >>>>> On Mon, Sep 2, 2013 at 10:42 PM, Camillo Bruni <camillobruni(a)gmail.com >>>>> wrote: >>>>> >>>>>> everything is open so far, guido had the idea of reserving a room at >>>> the >>>>>> UBA, >>>>>> we will have more details tomorrow :) >>>>>> >>>>>> On 2013-09-02, at 21:24, Gisela Decuzzi <giseladecuzzi(a)gmail.com> >>>> wrote: >>>>>>> Great! The idea is to spend the full day? Or do you have any planed >>>> time? >>>>>>> >>>>>>> >>>>>>> 2013/9/2 Camillo Bruni <camillobruni(a)gmail.com> >>>>>>> >>>>>>>> I spend a month in Buenos Aires working together with Guido Chari @ >>>> the >>>>>>>> UBA, >>>>>>>> we take this opportunity to organize a Pharo sprint outside France >>>> ;) >>>>>>>> >>>>>>>> We are in early preparation phase and the date nor location isn't >>>> fixed >>>>>>>> yet, >>>>>>>> so if you are motivated to join, can mark possible dates on this >>>> doodle: >>>>>>>> >>>>>>>> http://doodle.com/qey7iieqm5yr4wwy >>>>>>>> >>>>>>>> cheers, >>>>>>>> camillo >>>>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> Mariano >>>>> http://marianopeck.wordpress.com >>>> >>>> >>> >>

Sept. 4, 2013

Re: [Pharo-users] [Pharo-dev] Pharo Sprint in Buenos Aires

by Sebastian Tleye

The Pabellon 1 is closed on saturdays afternoon, but have you asked for Pabellon 2? I think it's open on saturdays (i don't know if it is possible to book a room) 2013/9/4 Guillermo Polito <guillermopolito(a)gmail.com> > Probably UTN? > > > On Wed, Sep 4, 2013 at 2:45 PM, Camillo Bruni <camillobruni(a)gmail.com>wrote: > >> So it looks like we are going to do the Pharo sprint in Buenos Aires >> Saturday, the 14th of September. >> The question is now where do we meet? >> The original idea was to reserver a room at the UBA, but that is not >> possible the weekend. >> Any suggestions? >> >> On 2013-09-03, at 09:05, Mariano Martinez Peck <marianopeck(a)gmail.com> >> wrote: >> >> > Cool. I'll be there, of course! >> > Keep us informed. >> > Cheers, >> > >> > >> > On Mon, Sep 2, 2013 at 10:42 PM, Camillo Bruni <camillobruni(a)gmail.com >> >wrote: >> > >> >> everything is open so far, guido had the idea of reserving a room at >> the >> >> UBA, >> >> we will have more details tomorrow :) >> >> >> >> On 2013-09-02, at 21:24, Gisela Decuzzi <giseladecuzzi(a)gmail.com> >> wrote: >> >>> Great! The idea is to spend the full day? Or do you have any planed >> time? >> >>> >> >>> >> >>> 2013/9/2 Camillo Bruni <camillobruni(a)gmail.com> >> >>> >> >>>> I spend a month in Buenos Aires working together with Guido Chari @ >> the >> >>>> UBA, >> >>>> we take this opportunity to organize a Pharo sprint outside France ;) >> >>>> >> >>>> We are in early preparation phase and the date nor location isn't >> fixed >> >>>> yet, >> >>>> so if you are motivated to join, can mark possible dates on this >> doodle: >> >>>> >> >>>> http://doodle.com/qey7iieqm5yr4wwy >> >>>> >> >>>> cheers, >> >>>> camillo >> >>>> >> >> >> >> >> > >> > >> > -- >> > Mariano >> > http://marianopeck.wordpress.com >> >> >

Sept. 4, 2013

Re: [Pharo-users] How to get the return value of a context?

by Norbert Hartl

Am 04.09.2013 um 14:19 schrieb Norbert Hartl <norbert(a)hartl.name>: > interleavedCtx := [ | foo | > foo := self dummySend > â¦ > ] It doesn't work with a temp inside the block. Using a method temp does what I think it does. So the very hackish way of doing it is at the moment | foo | ... interleavedCtx := [ foo := self dummy. â¦ foo ] asContext. interleavedCtx pc: intermediateCtx startpc + 2. interleavedCtx swapSender: (targetCtx swapSender: interleavedCtx) I hope there is a more elaborate way of doing this (beside calculating the byte code offset more reliable). Norbert

Sept. 4, 2013

Re: [Pharo-users] [Pharo-dev] Pharo Sprint in Buenos Aires

by Guillermo Polito

Probably UTN? On Wed, Sep 4, 2013 at 2:45 PM, Camillo Bruni <camillobruni(a)gmail.com>wrote: > So it looks like we are going to do the Pharo sprint in Buenos Aires > Saturday, the 14th of September. > The question is now where do we meet? > The original idea was to reserver a room at the UBA, but that is not > possible the weekend. > Any suggestions? > > On 2013-09-03, at 09:05, Mariano Martinez Peck <marianopeck(a)gmail.com> > wrote: > > > Cool. I'll be there, of course! > > Keep us informed. > > Cheers, > > > > > > On Mon, Sep 2, 2013 at 10:42 PM, Camillo Bruni <camillobruni(a)gmail.com > >wrote: > > > >> everything is open so far, guido had the idea of reserving a room at the > >> UBA, > >> we will have more details tomorrow :) > >> > >> On 2013-09-02, at 21:24, Gisela Decuzzi <giseladecuzzi(a)gmail.com> > wrote: > >>> Great! The idea is to spend the full day? Or do you have any planed > time? > >>> > >>> > >>> 2013/9/2 Camillo Bruni <camillobruni(a)gmail.com> > >>> > >>>> I spend a month in Buenos Aires working together with Guido Chari @ > the > >>>> UBA, > >>>> we take this opportunity to organize a Pharo sprint outside France ;) > >>>> > >>>> We are in early preparation phase and the date nor location isn't > fixed > >>>> yet, > >>>> so if you are motivated to join, can mark possible dates on this > doodle: > >>>> > >>>> http://doodle.com/qey7iieqm5yr4wwy > >>>> > >>>> cheers, > >>>> camillo > >>>> > >> > >> > > > > > > -- > > Mariano > > http://marianopeck.wordpress.com > >

Sept. 4, 2013

Re: [Pharo-users] [Pharo-dev] Pharo Sprint in Buenos Aires

by Camillo Bruni

So it looks like we are going to do the Pharo sprint in Buenos Aires Saturday, the 14th of September. The question is now where do we meet? The original idea was to reserver a room at the UBA, but that is not possible the weekend. Any suggestions? On 2013-09-03, at 09:05, Mariano Martinez Peck <marianopeck(a)gmail.com> wrote: > Cool. I'll be there, of course! > Keep us informed. > Cheers, > > > On Mon, Sep 2, 2013 at 10:42 PM, Camillo Bruni <camillobruni(a)gmail.com>wrote: > >> everything is open so far, guido had the idea of reserving a room at the >> UBA, >> we will have more details tomorrow :) >> >> On 2013-09-02, at 21:24, Gisela Decuzzi <giseladecuzzi(a)gmail.com> wrote: >>> Great! The idea is to spend the full day? Or do you have any planed time? >>> >>> >>> 2013/9/2 Camillo Bruni <camillobruni(a)gmail.com> >>> >>>> I spend a month in Buenos Aires working together with Guido Chari @ the >>>> UBA, >>>> we take this opportunity to organize a Pharo sprint outside France ;) >>>> >>>> We are in early preparation phase and the date nor location isn't fixed >>>> yet, >>>> so if you are motivated to join, can mark possible dates on this doodle: >>>> >>>> http://doodle.com/qey7iieqm5yr4wwy >>>> >>>> cheers, >>>> camillo >>>> >> >> > > > -- > Mariano > http://marianopeck.wordpress.com

Sept. 4, 2013

How to get the return value of a context?

by Norbert Hartl

I'm trying to interleave some behavior in the normal execution flow. For this I do something like targetCtx := self findTargetContext. interleavedCtx := [ self doSomething ] asContext. interleavedCtx swapSender: (targetCtx swapSender: interleavedCtx). Basically this works pretty fine. Now I have the case that targetCtx returns a value that was assigned to a variable in the original code bar := self methodOfTheTargetCtx What is a good way to get the return value of targetCtx? I think there is an easy way but I didn't find it. Even my very hacky tries failed. I did a manual test by having interleavedCtx := [ | foo | foo := self dummySend â¦ ] and setting the pc of the context just after the "send: dummySend" which is "popIntoTemp: 1". I thought at least that should bring the return value to foo but it didn't work. Maybe I'm doing just something stupid on the way. Some hints for enlightenment would be fine. thanks, Norbert

Sept. 4, 2013

Re: [Pharo-users] Laser Game

by ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½

2013/9/4 phil(a)highoctane.be <phil(a)highoctane.be> > you can get a rectanglemorph and a Form I'll try that) Thank you

Sept. 4, 2013

Re: [Pharo-users] Laser Game

by phil＠highoctane.be

you can get a rectanglemorph and a Form On Wednesday, September 4, 2013, ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com> wrote: > I thouqght about that:) SketchMorph is used to create game board, so I need it. > Can I use some other Morph? > Mark > > 2013/9/3 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >> >> On Sep 3, 2013, at 12:07 PM, ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com> wrote: >> >> I was dealing with laser game on pharo and found two problems. >> 1. LedMorph is missing but it's ok, I downloaded it (Morphic Extras). >> >> you cn find it under my repository on Smalltalkhub >> >> 2.SketchMorph is missing too, and I have some difficulties with it. When trying to load it (Morphic Basic) with Monticello browser an error occurs. >> Any ideas? >> >> Remove reference to SketchMorph. >> Stef >> >> >> 2013/9/2 ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com> >>> >>> Thanks) >>> >>> 2013/9/2 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >>>> >>>> On Sep 2, 2013, at 2:05 PM, Yuriy Tymchuk <yuriy.tymchuk(a)me.com> wrote: >>>> >>>> Hi, >>>> yes it can. This is where your adventure begins :) >>>> Also I think that I may be easier to follow the tutorial step by step with Pharo. Then you'll solve problems just when they appear and not end up with a tons of unknown stuff. >>>> >>>> ;) >>>> >>>> Uko >>>> >>>> On 2 Ð²ÐµÑ. 2013, at 15:02, ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com> wrote: >>>> >>>> As was suggested above I tried to load Laser Game on Pharo 2.0 and it didn't work. >>>> Can this problem be solved? >>>> >>>> 2013/8/16 StÃ©phane Ducasse <stephane.ducasse(a)inria.fr> >>>>> >>>>> On Aug 16, 2013, at 11:11 AM, ÐÐ°ÑÐºÑÑÐ½ Ð ÑÐ·ÑÐ½ <mrizun(a)gmail.com> wrote: >>>>> >>>>> Hi, everyone! >>>>> I have been working on a tutorial 'how to make a game using smalltalk' and developed this game ( Laser Game ) on Squeak, as it is an example of development on Squeak. I'm learning, so it's a great experience for me. Laser Game is my first game and it's not complicated, but for me it took long time to make. >>>>> Links: >>>>> 1. http://squeak.preeminent.org/tut2007/html/ - website of tutorial >>>>> 2. http://smalltalkhub.com/#!/~MarkRizun/LaserGame/source - Laser Game >>>>> Comments are welcome:) >>>>> >>>>> I thought that you were doing it on Pharo. >>>>> It would be good to have it on pharo and to know what are the changes at the morphic level. >>>>> >>>>> Mark >>>>> >>>>> >>>> >>>> >>>> >>> >> >> > > -- --- Philippe Back Dramatic Performance Improvements Mob: +32(0) 478 650 140 | Fax: +32 (0) 70 408 027 Mail:phil@highoctane.be | Web: http://philippeback.eu Blog: http://philippeback.be | Twitter: @philippeback Youtube: http://www.youtube.com/user/philippeback/videos High Octane SPRL rue cour Boisacq 101 | 1301 Bierges | Belgium Pharo Consortium Member - http://consortium.pharo.org/ Featured on the Software Process and Measurement Cast - http://spamcast.libsyn.com Sparx Systems Enterprise Architect and Ability Engineering EADocX Value Added Reseller

Sept. 4, 2013

Re: [Pharo-users] Pharo 2 problems that prevent me from using it in production was Re: RFB on 2.0 + linux - semaphore primitive failed

by Esteban Lorenzano

On Sep 4, 2013, at 12:10 PM, Norbert Hartl <norbert(a)hartl.name> wrote: > > Am 04.09.2013 um 11:43 schrieb Esteban Lorenzano <estebanlm(a)gmail.com>: > >> >> On Sep 4, 2013, at 10:54 AM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: >> >>> >>> On 04 Sep 2013, at 10:47, Norbert Hartl <norbert(a)hartl.name> wrote: >>> >>>> In all my other projects using zinc and RFB I didn't see the problem. But then I don't save images in production. >>> >>> Images are very cool and very useful, but saving images in production is a no go, it is asking for trouble, IMHO. >> >> yes, but preparing an image for production often includes opening RFB and save it in that state :) >> > It is a good thing to avoid that. Why? Because it is not automatically reproducible. If it is it might be better to put it in a start script. I let my images build by CI which I copy then on the target machine (in a script of course :) ). Then there are start scripts that e.g. start the RFB server. And those things always works until I save the image and change this way the prerequisites of the process. Or did you mean something different? in practice is the same. you have a "preparation script" that opens a RFB and saves the image. If you say that doing it that way is not good, then I disagree: pharo is image based and if we do not keep the power of having a "ready to start" image (in production too), then we are losing something important. ... and we are transforming a necessity (not doing something because is buggy) into a virtue... and that's just plain wrong :) but I think we are now talking of different things :) > > Norbert > > >

Sept. 4, 2013