October 2013 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Slides of my Lecture this morning..

by Marcus Denker

On 29 Oct 2013, at 13:38, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > Thanks for sharing, Marcus, I really appreciate this. > > It is cool to know that we have already slots under the hood, and that much more application are on their way. > Slot allInstances size ==> 7128 :-) Marcus

Oct. 29, 2013

Re: [Pharo-users] Slides of my Lecture this morning..

by Sven Van Caekenberghe

Thanks for sharing, Marcus, I really appreciate this. It is cool to know that we have already slots under the hood, and that much more application are on their way. Sven On 29 Oct 2013, at 13:02, Marcus Denker <marcus.denker(a)inria.fr> wrote: > Hi, > > I am just visiting Jordi Delgado in Barcelona and I gave a lecture in his course this morning. > âAdvanced Reflection in Pharoâ, this is meant to be a lecture after an introduction to standard > Smalltalk reflection. > > SlideShare > http://www.slideshare.net/MarcusDenker/lecture-27685035 > > PDF > http://marcusdenker.de/talks/13BarcelonaLecture/ > > > Marcus

Oct. 29, 2013

Slides of my Lecture this morning..

by Marcus Denker

Hi, I am just visiting Jordi Delgado in Barcelona and I gave a lecture in his course this morning. âAdvanced Reflection in Pharoâ, this is meant to be a lecture after an introduction to standard Smalltalk reflection. SlideShare http://www.slideshare.net/MarcusDenker/lecture-27685035 PDF http://marcusdenker.de/talks/13BarcelonaLecture/ Marcus

Oct. 29, 2013

Re: [Pharo-users] CogVM arguments in Win32

by Bernat Romagosa

Ok, I see Pharo -help brings up a window with command line options, but -headless is still firing up the GUI... any ideas? 2013/10/29 Bernat Romagosa <tibabenfortlapalanca(a)gmail.com> > Hi list! > > I've never used Pharo on Windows before, but we're starting to package a > multi-platform app right now and I've just found out command line arguments > don't work like I thought they would. I need to run the image headless, so > I figured: > > bin-win32\Pharo -headless shared\Pharo2.0.image > > Would do the trick, but it's not working. > > Pharo /? doesn't give any hints either, and I can't seem to find the docs > for the Windows VM anywhere. > > Does anybody know where I can find a Win32 VM reference? > > Thanks! > > -- > Bernat Romagosa. > -- Bernat Romagosa.

Oct. 29, 2013

CogVM arguments in Win32

by Bernat Romagosa

Hi list! I've never used Pharo on Windows before, but we're starting to package a multi-platform app right now and I've just found out command line arguments don't work like I thought they would. I need to run the image headless, so I figured: bin-win32\Pharo -headless shared\Pharo2.0.image Would do the trick, but it's not working. Pharo /? doesn't give any hints either, and I can't seem to find the docs for the Windows VM anywhere. Does anybody know where I can find a Win32 VM reference? Thanks! -- Bernat Romagosa.

Oct. 29, 2013

Call for Participation in the Smalltalk Devroom at FOSDEM2014

by Stephan Eggermont

Call for Participation in the Smalltalk Devroom at FOSDEM 2014. http://www.fosdem.org, please forward " A devroom for the Pharo, Squeak, Amber, GST, EtoilÃ©, Seaside, Moose Smalltalk projects & Newspeak as derived language. Smalltalk environments offer a very high development productivity, unmatched by their successors. Come do some pair programming with us and experience yourself the advantages of a real OO environment" The meetup will take place Saturday, February 1, 2014, from 9AM until 5PM, building AW. This room has 72 seats, a VGA video projector and wireless internet. More information will be available later. If there are volunteers to record video content, the FOSDEM organization kindly offered to provide needed equipment & instructions. Please let me know if you would be willing to spend some time pointing a camera at a speaker. Proposals on content and format are welcome. People interested in running a session should send me an email at stephan ( @ ) stack ( dot ) nl with 'FOSDEM2014â in the subject and the following information: - Their name - The project they are associated with - A short bio, to be put on the website along with their speaker name - (optionally) a picture of themselves - The title of their session (which will go on the website and in the booklet) - A abstract describing the session in further detail. - The desired length of the session. - The desired time slot in which they want to hold the session. I will send out updates on a regular basis to the lists and anyone stating his interest. Suggested values for the duration are 55min, 25min, 6m40 (Pecha Kucha). The desired time slot is meant to help you prevent conflicts with other dev rooms in which you might have a talk or your travel arrangements. There are alternative, non smalltalk-specific tracks available: lightning talk and the main track The deadline for submissions is December 31, 23:00 GMT+1. Devroom related URLs: http://www.pharo-project.org http://www.squeak.org/ http://etoileos.com/ http://www.seaside.st/ http://smalltalk.gnu.org/ http://www.moosetechnology.org http://amber-lang.net http://newspeaklanguage.org/ http://www.esug.org First proposal already arrived: Stefan Marr proposed: I could give a presentation on SOM (Simple Object Machine) Smalltalk. I would especially go into detail of the Truffle-based and the RPython (PyPy) based implementations to show modern ways of language implementations with the goal of achieving high performance.

Oct. 29, 2013

Re: [Pharo-users] Prepared statements with PostgresV2

by Esteban A. Maringolo

Hi Yanni, Then how do people sanitize the values to avoid SQL Injection? I remember using prepared statements with PG back in PG 6.x with Perl's DBD::Pg, it was the recommended practice back then (circa '00). As another example, some years ago we had some CPU issues with the DB server (Oracle 9i), because our ORM generated lots of queries, and each query needed to be compiled every time we ran it with different values. Is there a plan to add support for this? My main concern now it's not CPU but security. Thanks in advance! Esteban A. Maringolo 2013/10/29 Yanni Chiu <yanni(a)rogers.com> > On 28/10/2013 1:59 PM, Esteban A. Maringolo wrote: > >> I'm using PGConnection from the PostgresV2 package. >> >> conn execute: 'SELECT * FROM MYTABLE WHERE COLUMN = ?' withAll: (Array >> with: >> columnValue) >> >> >> How can I do this? >> > > You cannot do it with the V2 protocol. I just looked over the postgres > docs at: > http://www.postgresql.org/**docs/7.4/static/protocol.html<http://www.postgresql.org/docs/7.4/static/protocol.html> > http://www.postgresql.org/**docs/7.3/static/protocol.html<http://www.postgresql.org/docs/7.3/static/protocol.html> > > The feature you want is called "Extended Query" in the postgres docs, and > is appears in PostgreSQL 7.4, but not in PostgreSQL 7.3. > > Note also that the V2 Frontend/Backend Protocol is used for PostgreSQL > 7.3., whereas the V3 Protocol is used for PostgreSQL 7.4. > >

Oct. 29, 2013

Re: [Pharo-users] Prepared statements with PostgresV2

by Yanni Chiu

On 28/10/2013 1:59 PM, Esteban A. Maringolo wrote: > I'm using PGConnection from the PostgresV2 package. > > conn execute: 'SELECT * FROM MYTABLE WHERE COLUMN = ?' withAll: (Array with: > columnValue) > > > How can I do this? You cannot do it with the V2 protocol. I just looked over the postgres docs at: http://www.postgresql.org/docs/7.4/static/protocol.html http://www.postgresql.org/docs/7.3/static/protocol.html The feature you want is called "Extended Query" in the postgres docs, and is appears in PostgreSQL 7.4, but not in PostgreSQL 7.3. Note also that the V2 Frontend/Backend Protocol is used for PostgreSQL 7.3., whereas the V3 Protocol is used for PostgreSQL 7.4.

Oct. 29, 2013

Prepared statements with PostgresV2

by Esteban A. Maringolo

I'm using PGConnection from the PostgresV2 package. I'd like to use prepared statements to avoid SQL Injection and continuous recompilation of the query. Ej: conn execute: 'SELECT * FROM MYTABLE WHERE COLUMN = ?' withAll: (Array with: columnValue) How can I do this? Regards, -- View this message in context: http://forum.world.st/Prepared-statements-with-PostgresV2-tp4717659.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Oct. 28, 2013

Reminder: Smalltalk Meetup in ZÃ¼rich, Nov 5th

by jtuchel＠objektfabrik.de

Hi, this is just a kind reminder that we're meeting in ZÃ¼rich next week to chat about our favorite programming language, frameworks, news etc., and have a great time! When? November 5th, 2013, 19:00 Where? Restaurant Steinfels (near HardbrÃ¼cke, good to reach from anywhere by bus, tram, train, plane and even car - just don't expect free parking ;-) ) Who? Anybody interested in Smalltalk (the programming environment ;-) ), any flavor, any level, any framework It would be cool if you could spread the word, come yourself, bring colleagues with you, blog abut this, and let us know you're coming. See you next week, Joachim -- -- â¨----------------------------------------------------------------------- â¨Objektfabrik Joachim Tuchel mailto:jtuchel@objektfabrik.de â¨Fliederweg 1 http://www.objektfabrik.de D-71640 Ludwigsburg http://joachimtuchel.wordpress.com Telefon: +49 7141 56 10 86 0 Fax: +49 7141 56 10 86 1

Oct. 28, 2013

Re: [Pharo-users] profStef missing executeMethod

by phil＠highoctane.be

Try DateAndTime now On Sunday, October 27, 2013, Charles Hixson <charleshixsn(a)earthlink.net> wrote: > Hello, > Thanks for the response. However being as I'm of the level of experience where using profStef it's probably a poor idea for me to even TRY to fix things. I may be an experienced programmer, but my level of Smalltalk knowledge is such that I'm only guessing at what you mean. I can't actually read the code you wrote. And I wouldn't know how to even insert it in my local image. (I finished the tutorial, but it wasn't covering the language to that depth. And Pharo by Example keeps describing things that don't match what I see on my screen. Often I can figure out what is meant, but sometimes there doesn't seem to be anything that does the same job. (E.g., I haven't figured out how to get "Time now." to report in 24hour time.) > > I THINK that this should be changed in profStef rather than in Object, probably by removing the reference. But that's just a guess. (That much I can do in my image, but I wouldn't want to do it in any shared code without someone a LOT more knowledgeable saying it's a good idea, and watching over my shoulder.) > > On 10/26/2013 10:56 PM, ClÃ©ment Bera wrote: > > Hello, > I think #executeMethod was a shortcut for method without arguments of the method #withArgs:executeMethod:. I missed it too, so I guess you can add a bug report, create and commit a slice and lastly it will be integrated in Pharo in the next few days. > #withArgs:executeMethod: is implemented in ProtoObject, but we take care not to have too many methods there. This kind of facilities are usually in Object (For example, #isNil is in ProtoObject, but #notNil which is a facility for 'isNil not' is in Object). So I guess what you miss is: > Object>>executeMethod: method > ^ self withArgs: #( ) executeMethod: method > Best, > > > 2013/10/26 Charles Hixson <charleshixsn(a)earthlink.net> >> >> I'm using: >> >> Pharo2.0 >> Latest update: #20625 >> >> I'm at "Reflection continued >> >> When I do the command to go to the next lesson: >> ProfStef default executeMethod: (ProfStef lookupSelector:#next). >> >> I get the error: >> ProfStef(Object) doesNotUnderstand: #executeMethod >> >> When I browse to the class in the system browser, ProfStef doesn't have an executeMethod object. >> I also checked Object and ProtoObject,just to be sure, but neither of them listed an executeMethod either. >> >> P.S.: I also looked at the Class Methods, though default looks like it returns an instance, so that didn't feel reasonable. >> >> Where is executeMethod supposed to reside, and was this an intentional change that just hasn't propagated yet ('m guessing the removal of the method) or is something wrong with my image? Also, if I wanted to include it into ProfStef, what would the method look like? >> >> -- >> Charles Hixson >> >> > > > > -- > Charles Hixson -- --- 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

Oct. 27, 2013

Re: [Pharo-users] profStef missing executeMethod

by ClÃ©ment Bera

Ok well one will fix ProfStef one day, probably before the Pharo 3.0 release. To insert this code in your image and finish ProfStef, open the class browser (right click on the background, then class browser is the first context menu item), then right-click on the packages (left list), click on 'find class...', write 'Object' or 'ProfStef', press enter, then add a method with exactly this code (copy and past it): *executeMethod*: method ^ self withArgs: #( ) executeMethod: method Then ProfStef should work. Updating ProfStef was in the TODO list for Pharo 2 summer release, but I guess one forgot this method. For Time now, you have: Time now printString ===>>> print in 12h mode Time now print24 ===>>> print in 24h mode The object is the same, just the printing method is different. By the way, a quick trick, when you look for senders or implementors or a message, write the selector anywhere, highlight it with your mouse, then right-click on it, click 'extended search...', then click 'senders of it ...' or 'implementors of it ...' so you can know directly who implements/sends this message without looking into all the class in the class browser. It helps a lot understanding code. Pharo by example is good with Pharo 1.4. More recent version of Pharo may be a little different from what is in the book, however most of it should be very similar. The new book, Deep into Pharo is up to date with Pharo 3.0 but covers only advanced aspects of Pharo. Enjoy working with Pharo :) 2013/10/27 Charles Hixson <charleshixsn(a)earthlink.net> > Hello, > Thanks for the response. However being as I'm of the level of experience > where using profStef it's probably a poor idea for me to even TRY to fix > things. I may be an experienced programmer, but my level of Smalltalk > knowledge is such that I'm only guessing at what you mean. I can't > actually read the code you wrote. And I wouldn't know how to even insert > it in my local image. (I finished the tutorial, but it wasn't covering the > language to that depth. And Pharo by Example keeps describing things that > don't match what I see on my screen. Often I can figure out what is meant, > but sometimes there doesn't seem to be anything that does the same job. > (E.g., I haven't figured out how to get "Time now." to report in 24hour > time.) > > I THINK that this should be changed in profStef rather than in Object, > probably by removing the reference. But that's just a guess. (That much I > can do in my image, but I wouldn't want to do it in any shared code without > someone a LOT more knowledgeable saying it's a good idea, and watching over > my shoulder.) > > > On 10/26/2013 10:56 PM, ClÃ©ment Bera wrote: > > Hello, > > I think #executeMethod was a shortcut for method without arguments of the > method #withArgs:executeMethod:. I missed it too, so I guess you can add a > bug report, create and commit a slice and lastly it will be integrated in > Pharo in the next few days. > > #withArgs:executeMethod: is implemented in ProtoObject, but we take care > not to have too many methods there. This kind of facilities are usually in > Object (For example, #isNil is in ProtoObject, but #notNil which is a > facility for 'isNil not' is in Object). So I guess what you miss is: > > Object>>*executeMethod*: method > ^ self withArgs: #( ) executeMethod: method > > Best, > > > > 2013/10/26 Charles Hixson <charleshixsn(a)earthlink.net> > >> I'm using: >> >> Pharo2.0 >> Latest update: #20625 >> >> I'm at "Reflection continued >> >> When I do the command to go to the next lesson: >> ProfStef default executeMethod: (ProfStef lookupSelector:#next). >> >> I get the error: >> ProfStef(Object) doesNotUnderstand: #executeMethod >> >> When I browse to the class in the system browser, ProfStef doesn't have >> an executeMethod object. >> I also checked Object and ProtoObject,just to be sure, but neither of >> them listed an executeMethod either. >> >> P.S.: I also looked at the Class Methods, though default looks like it >> returns an instance, so that didn't feel reasonable. >> >> Where is executeMethod supposed to reside, and was this an intentional >> change that just hasn't propagated yet ('m guessing the removal of the >> method) or is something wrong with my image? Also, if I wanted to include >> it into ProfStef, what would the method look like? >> >> -- >> Charles Hixson >> >> >> > > > -- > Charles Hixson > >

Oct. 27, 2013

Re: [Pharo-users] profStef missing executeMethod

by Charles Hixson

Hello, Thanks for the response. However being as I'm of the level of experience where using profStef it's probably a poor idea for me to even TRY to fix things. I may be an experienced programmer, but my level of Smalltalk knowledge is such that I'm only guessing at what you mean. I can't actually read the code you wrote. And I wouldn't know how to even insert it in my local image. (I finished the tutorial, but it wasn't covering the language to that depth. And Pharo by Example keeps describing things that don't match what I see on my screen. Often I can figure out what is meant, but sometimes there doesn't seem to be anything that does the same job. (E.g., I haven't figured out how to get "Time now." to report in 24hour time.) I THINK that this should be changed in profStef rather than in Object, probably by removing the reference. But that's just a guess. (That much I can do in my image, but I wouldn't want to do it in any shared code without someone a LOT more knowledgeable saying it's a good idea, and watching over my shoulder.) On 10/26/2013 10:56 PM, ClÃ©ment Bera wrote: > Hello, > > I think #executeMethod was a shortcut for method without arguments of > the method #withArgs:executeMethod:. I missed it too, so I guess you > can add a bug report, create and commit a slice and lastly it will be > integrated in Pharo in the next few days. > > #withArgs:executeMethod: is implemented in ProtoObject, but we take > care not to have too many methods there. This kind of facilities are > usually in Object (For example, #isNil is in ProtoObject, but #notNil > which is a facility for 'isNil not' is in Object). So I guess what you > miss is: > > Object>>*executeMethod*: method > ^ self withArgs: #( ) executeMethod: method > > Best, > > > > 2013/10/26 Charles Hixson <charleshixsn(a)earthlink.net > <mailto:charleshixsn@earthlink.net>> > > I'm using: > > Pharo2.0 > Latest update: #20625 > > I'm at "Reflection continued > > When I do the command to go to the next lesson: > ProfStef default executeMethod: (ProfStef lookupSelector:#next). > > I get the error: > ProfStef(Object) doesNotUnderstand: #executeMethod > > When I browse to the class in the system browser, ProfStef doesn't > have an executeMethod object. > I also checked Object and ProtoObject,just to be sure, but neither > of them listed an executeMethod either. > > P.S.: I also looked at the Class Methods, though default looks > like it returns an instance, so that didn't feel reasonable. > > Where is executeMethod supposed to reside, and was this an > intentional change that just hasn't propagated yet ('m guessing > the removal of the method) or is something wrong with my image? > Also, if I wanted to include it into ProfStef, what would the > method look like? > > -- > Charles Hixson > > > -- Charles Hixson

Oct. 27, 2013

Re: [Pharo-users] Three copies of JSON-ul.35 on Smalltalkhub

by Damien Cassou

On Fri, Oct 25, 2013 at 9:34 AM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr > wrote: > I have problem to add people : Torsten and you to pharoextras I confirm, this does not work for now. If you send me your mcz files, I will upload them until I can add you. -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

Oct. 27, 2013

Re: [Pharo-users] pharo ci account

by Marcus Denker

On 27 Oct 2013 at 01:36:39, Paul DeBruicker (pdebruic(a)gmail.com) wrote: > >Hi - > >May I please have an account on the CI? I'd like to set up some project builds.Â 1) sign up onÂ https://ci.inria.fr 2) inÂ https://ci.inria.fr/project search for âpharo-contributionâÂ and request to join. Then this will be accepted by one of theÂ admins, after you can log into the jenkins at https://ci.inria.fr/pharo-contribution/ and create you build. Marcus

Oct. 27, 2013

Re: [Pharo-users] pharo ci account

by StÃ©phane Ducasse

On Oct 27, 2013, at 1:36 AM, Paul DeBruicker <pdebruic(a)gmail.com> wrote: > Hi - > > May I please have an account on the CI? yes guys will help you > I'd like to set up some project builds. I'd also like to use your Jenkins to trigger builds on Travis. But I'm not yet sure how to do that. > > > Thanks > > Paul

Oct. 27, 2013

Re: [Pharo-users] profStef missing executeMethod

by ClÃ©ment Bera

Hello, I think #executeMethod was a shortcut for method without arguments of the method #withArgs:executeMethod:. I missed it too, so I guess you can add a bug report, create and commit a slice and lastly it will be integrated in Pharo in the next few days. #withArgs:executeMethod: is implemented in ProtoObject, but we take care not to have too many methods there. This kind of facilities are usually in Object (For example, #isNil is in ProtoObject, but #notNil which is a facility for 'isNil not' is in Object). So I guess what you miss is: Object>>*executeMethod*: method ^ self withArgs: #( ) executeMethod: method Best, 2013/10/26 Charles Hixson <charleshixsn(a)earthlink.net> > I'm using: > > Pharo2.0 > Latest update: #20625 > > I'm at "Reflection continued > > When I do the command to go to the next lesson: > ProfStef default executeMethod: (ProfStef lookupSelector:#next). > > I get the error: > ProfStef(Object) doesNotUnderstand: #executeMethod > > When I browse to the class in the system browser, ProfStef doesn't have an > executeMethod object. > I also checked Object and ProtoObject,just to be sure, but neither of them > listed an executeMethod either. > > P.S.: I also looked at the Class Methods, though default looks like it > returns an instance, so that didn't feel reasonable. > > Where is executeMethod supposed to reside, and was this an intentional > change that just hasn't propagated yet ('m guessing the removal of the > method) or is something wrong with my image? Also, if I wanted to include > it into ProfStef, what would the method look like? > > -- > Charles Hixson > > >

Oct. 27, 2013

pharo ci account

by Paul DeBruicker

Hi - May I please have an account on the CI? I'd like to set up some project builds. I'd also like to use your Jenkins to trigger builds on Travis. But I'm not yet sure how to do that. Thanks Paul

Oct. 26, 2013

profStef missing executeMethod

by Charles Hixson

I'm using: Pharo2.0 Latest update: #20625 I'm at "Reflection continued When I do the command to go to the next lesson: ProfStef default executeMethod: (ProfStef lookupSelector:#next). I get the error: ProfStef(Object) doesNotUnderstand: #executeMethod When I browse to the class in the system browser, ProfStef doesn't have an executeMethod object. I also checked Object and ProtoObject,just to be sure, but neither of them listed an executeMethod either. P.S.: I also looked at the Class Methods, though default looks like it returns an instance, so that didn't feel reasonable. Where is executeMethod supposed to reside, and was this an intentional change that just hasn't propagated yet ('m guessing the removal of the method) or is something wrong with my image? Also, if I wanted to include it into ProfStef, what would the method look like? -- Charles Hixson

Oct. 26, 2013

Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless

by Srikumar K. S.

Hi Norbert, I don't think it is RFB's fault either. I did give the complete steps I did. Perhaps just a wait loop after each of the steps is all it takes, 'cos since I did those steps using the local vm by hand before the "save and quit". I know how to wait for RFBServer to start (1), but I'm not sure how to wait for the load to finish or whether I need to. Anyway, I'm happy now since RFB is running fine with the manually created image. Thanks! ... and all this is pretty cool! -Kumar (1) [RFBServer current isRunning] whileFalse: [1 second asDelay wait] On 25 Oct, 2013, at 7:51 PM, pharo-users-request(a)lists.pharo.org wrote: > Date: Fri, 25 Oct 2013 16:21:49 +0200 > From: Norbert Hartl <norbert(a)hartl.name> > To: Pharo users users <pharo-users(a)lists.pharo.org> > Subject: Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless > Message-ID: <CCECFED4-ED69-4802-A23D-70DECA2B81A5(a)hartl.name> > Content-Type: text/plain; charset=windows-1252 > > Hi Srikumar, > > can you tell what other software you have installed in your image. I know the effect but I?m still not fully convinced it is RFBs fault. > > Norbert > > Am 25.10.2013 um 05:24 schrieb Srikumar Karaikudi Subramanian <srikumarks(a)gmail.com>: > >> Hi, >> >> Since this is my first post, I'd first like to say Pharo rocks! >> After quite a bit of search for a server-side programming environment >> that I can live with, I landed on Pharo/Zinc+family and went >> "this is it!" for my project which is like a wiki for music >> notation. >> >> I'm trying to setup a pharo+zinc server with RFB installed on a VPS >> so I can access it through VNC ("Chicken of the VNC" on MacOS 10.8.5). >> I'm only get a static image of the pharo environment when I connect >> and I don't get any interactivity at all. One other poster [1] who >> mentioned this also posted that the problem was solved with a >> later version of squeak, which I didn't have any luck with since I don't >> have X configured on my server. >> >> Much appreciate any tips. >> >> I got pharo from get.pharo.org and cloned the image using "save". >> I run the following script on the cloned image with >> the "-headless" flag (I tried with and without the flag.) >> >> "----begin code---" >> Gofer it >> squeaksource: 'MetacelloRepository'; >> package: 'ConfigurationOfRFB'; >> load. >> (Smalltalk at: #ConfigurationOfRFB) load. >> >> (RFBServer current) >> allowEmptyPasswords: false; >> allowRemoteConnections: false; >> allowInteractiveConnections: true; >> allowZRLE: true; >> setFullPassword: 'my password'; >> start: 0. >> >> [1 hour asDelay wait] repeat. >> "----end code----" >> >> One other point - if I save an image after loading the RFB package >> (using "Smalltalk snapshot: true andQuit: true.") and then >> launch with a script that only starts the server, I get a static black screen >> instead and not even the static image. So I don't understand why >> there should be a behaviour difference between the two as well. >> >> Regards to all, >> -Kumar >> >> [1] http://groups.yahoo.com/neo/groups/squeak/conversations/topics/141662

Oct. 25, 2013

Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless

by Srikumar K. S.

Hi Ben, Thanks for the welcome :) My problem doesn't seem to be related to the semaphore issue and more likely reflects my noob status. I'm up and running now though. I was afraid of having to run xpra or something since it would eat server memory, but thankfully RFBServer seems to work fine now. Best, -Kumar On 25 Oct, 2013, at 7:51 PM, pharo-users-request(a)lists.pharo.org wrote: > Date: Fri, 25 Oct 2013 22:11:33 +0800 > From: btc(a)openinworld.com > To: Any question about pharo is welcome <pharo-users(a)lists.pharo.org> > Subject: Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless > Message-ID: <526A7C15.60203(a)openinworld.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi Srikumar, > Welcome to the community. Really great to hear you are enjoying Pharo, > and got your problem solved yourself. Hope to see more of you here. > > I don't have a direct answer for your queries. I haven't used RFB like > that before. I remember a thread about RFB and semaphores that might > have related information. Google "RFB on 2.0 + linux - semaphore > primitive failed" > > cheers -ben > > Srikumar Karaikudi Subramanian wrote: >> Hi, >> >> Since this is my first post, I'd first like to say Pharo rocks! >> After quite a bit of search for a server-side programming environment >> that I can live with, I landed on Pharo/Zinc+family and went >> "this is it!" for my project which is like a wiki for music >> notation. >> >> I'm trying to setup a pharo+zinc server with RFB installed on a VPS >> so I can access it through VNC ("Chicken of the VNC" on MacOS 10.8.5). >> I'm only get a static image of the pharo environment when I connect >> and I don't get any interactivity at all. One other poster [1] who >> mentioned this also posted that the problem was solved with a >> later version of squeak, which I didn't have any luck with since I don't >> have X configured on my server. >> >> Much appreciate any tips. >> >> I got pharo from get.pharo.org and cloned the image using "save". >> I run the following script on the cloned image with >> the "-headless" flag (I tried with and without the flag.) >> >> "----begin code---" >> Gofer it >> squeaksource: 'MetacelloRepository'; >> package: 'ConfigurationOfRFB'; >> load. >> (Smalltalk at: #ConfigurationOfRFB) load. >> >> (RFBServer current) >> allowEmptyPasswords: false; >> allowRemoteConnections: false; >> allowInteractiveConnections: true; >> allowZRLE: true; >> setFullPassword: 'my password'; >> start: 0. >> >> [1 hour asDelay wait] repeat. >> "----end code----" >> >> One other point - if I save an image after loading the RFB package >> (using "Smalltalk snapshot: true andQuit: true.") and then >> launch with a script that only starts the server, I get a static black screen >> instead and not even the static image. So I don't understand why >> there should be a behaviour difference between the two as well. >> >> Regards to all, >> -Kumar >> >> [1] http://groups.yahoo.com/neo/groups/squeak/conversations/topics/141662

Oct. 25, 2013

Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless

by Norbert Hartl

Hi Srikumar, can you tell what other software you have installed in your image. I know the effect but Iâm still not fully convinced it is RFBs fault. Norbert Am 25.10.2013 um 05:24 schrieb Srikumar Karaikudi Subramanian <srikumarks(a)gmail.com>: > Hi, > > Since this is my first post, I'd first like to say Pharo rocks! > After quite a bit of search for a server-side programming environment > that I can live with, I landed on Pharo/Zinc+family and went > "this is it!" for my project which is like a wiki for music > notation. > > I'm trying to setup a pharo+zinc server with RFB installed on a VPS > so I can access it through VNC ("Chicken of the VNC" on MacOS 10.8.5). > I'm only get a static image of the pharo environment when I connect > and I don't get any interactivity at all. One other poster [1] who > mentioned this also posted that the problem was solved with a > later version of squeak, which I didn't have any luck with since I don't > have X configured on my server. > > Much appreciate any tips. > > I got pharo from get.pharo.org and cloned the image using "save". > I run the following script on the cloned image with > the "-headless" flag (I tried with and without the flag.) > > "----begin code---" > Gofer it > squeaksource: 'MetacelloRepository'; > package: 'ConfigurationOfRFB'; > load. > (Smalltalk at: #ConfigurationOfRFB) load. > > (RFBServer current) > allowEmptyPasswords: false; > allowRemoteConnections: false; > allowInteractiveConnections: true; > allowZRLE: true; > setFullPassword: 'my password'; > start: 0. > > [1 hour asDelay wait] repeat. > "----end code----" > > One other point - if I save an image after loading the RFB package > (using "Smalltalk snapshot: true andQuit: true.") and then > launch with a script that only starts the server, I get a static black screen > instead and not even the static image. So I don't understand why > there should be a behaviour difference between the two as well. > > Regards to all, > -Kumar > > [1] http://groups.yahoo.com/neo/groups/squeak/conversations/topics/141662

Oct. 25, 2013

Re: [Pharo-users] Pharo 2.0 with RFBServer with -headless

by btc＠openinworld.com

Hi Srikumar, Welcome to the community. Really great to hear you are enjoying Pharo, and got your problem solved yourself. Hope to see more of you here. I don't have a direct answer for your queries. I haven't used RFB like that before. I remember a thread about RFB and semaphores that might have related information. Google "RFB on 2.0 + linux - semaphore primitive failed" cheers -ben Srikumar Karaikudi Subramanian wrote: > Hi, > > Since this is my first post, I'd first like to say Pharo rocks! > After quite a bit of search for a server-side programming environment > that I can live with, I landed on Pharo/Zinc+family and went > "this is it!" for my project which is like a wiki for music > notation. > > I'm trying to setup a pharo+zinc server with RFB installed on a VPS > so I can access it through VNC ("Chicken of the VNC" on MacOS 10.8.5). > I'm only get a static image of the pharo environment when I connect > and I don't get any interactivity at all. One other poster [1] who > mentioned this also posted that the problem was solved with a > later version of squeak, which I didn't have any luck with since I don't > have X configured on my server. > > Much appreciate any tips. > > I got pharo from get.pharo.org and cloned the image using "save". > I run the following script on the cloned image with > the "-headless" flag (I tried with and without the flag.) > > "----begin code---" > Gofer it > squeaksource: 'MetacelloRepository'; > package: 'ConfigurationOfRFB'; > load. > (Smalltalk at: #ConfigurationOfRFB) load. > > (RFBServer current) > allowEmptyPasswords: false; > allowRemoteConnections: false; > allowInteractiveConnections: true; > allowZRLE: true; > setFullPassword: 'my password'; > start: 0. > > [1 hour asDelay wait] repeat. > "----end code----" > > One other point - if I save an image after loading the RFB package > (using "Smalltalk snapshot: true andQuit: true.") and then > launch with a script that only starts the server, I get a static black screen > instead and not even the static image. So I don't understand why > there should be a behaviour difference between the two as well. > > Regards to all, > -Kumar > > [1] http://groups.yahoo.com/neo/groups/squeak/conversations/topics/141662 >

Oct. 25, 2013

Re: [Pharo-users] Reset Spec #openWorldWithSpec:

by Benjamin

Yes, because when you openInWorld, you do not create a window, you take Pharo window as container :) Ben On 25 Oct 2013, at 14:55, btc(a)openinworld.com wrote: > Benjamin wrote: >> >> euuuuh >> >> Basically what is done when you open a spec as world is that the background color changed, >> all the morph are closed, and the spec is specified to take all the space. >> >> So to revert it, I think you *only* need to close the spec morph, >> set the background color to white, and voilÃ >> >> Ben >> > > Okay. So this works okay... > > TabsExample new openWithSpec. > [ (Delay forSeconds: 3) wait. > SpecWindow allInstancesDo: [ :windowModel | windowModel delete ]. > ] fork. > > but this does not.... > > TabsExample new openWorldWithSpec. > [ (Delay forSeconds: 3) wait. > SpecWindow allInstancesDo: [ :windowModel | windowModel delete ]. > ] fork. > > However I finally managed to discover this works... > > TabsExample new openWorldWithSpec. > [ (Delay forSeconds: 3) wait. > PanelMorph allInstancesDo: [ :pm | pm delete ]. > ] fork. > > cheers -ben >> On 24 Oct 2013, at 18:51, btc(a)openinworld.com wrote: >> >> >>> Message #openWorldWithSpec: sets a Spec entity to take up the whole World. How can that be reverted? ...to set the World back to the state delivered with a virgin Pharo image? >>> >>> cheers -ben >>> >>> >> >> >> >

Oct. 25, 2013

Re: [Pharo-users] Reset Spec #openWorldWithSpec:

by btc＠openinworld.com

Oct. 25, 2013