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

detecting and reacting to a race condition/infinite loop

by Paul DeBruicker

Is there a way to detect when an image has entered an infinite loop? If so could I then halt it, save the image, and reboot from a previously known good configuration automatically? I have a site with a weird bug on a remote server that has become annoying to debug because when the infinite loop occurs the RFB process becomes unresponsive. Or maybe I should stop running headless temporarily and use X forwarding through SSH. Anyways, is there a way to detect an infinite loop an react to it? Thanks Paul

July 6, 2011

metacello question

by Werner Kassens

Hi, in a Configuration i have this baseline: baseline10: spec <version: '1.0-baseline'> spec for: #'common' do: [ spec blessing: #'baseline'. spec project: 'Nile' with: [ spec className: 'ConfigurationOfNile'; versionString: #bleedingEdge; loads: #('Core Tests' ); repository: 'http://www.squeaksource.com/MetacelloRepository' ]. spec repository: '/home/user/PharoFiles/package-cache'. spec package: 'Pattern' with: [spec requires: 'Nile']; package: 'Pattern-Tests' with: [spec requires: 'Pattern'.] ]. in the method version10 i have this: spec package: 'Pattern' with: 'Pattern-WernerKassens.14'; now i remove the package 'Pattern' and do a load with the configuration. no complaints by the configuration. but there is no package 'Pattern' visible in the browser. i open the monticello browser and there is a dirty package 'Pattern'. i open a browser on this package via the monticello browser and 'Pattern' is completely empty. but in the monticello browser the package shows the repository /home/user/PharoFiles/package-cache exactly as written in the baseline. i open that repository and of course can load 'Pattern' as expected . where did i go wrong? werner

July 6, 2011

Re: [Pharo-users] Pharo showcase demos?

by Simon Denier

On 5 juil. 2011, at 18:09, laurent laffont wrote: > > > > On Tue, Jul 5, 2011 at 6:01 PM, Simon Denier <simon.denier(a)gmail.com> wrote: > > On 5 juil. 2011, at 14:41, laurent laffont wrote: > >> On Tue, Jul 5, 2011 at 11:54 AM, Simon Denier <simon.denier(a)gmail.com> wrote: >> >> Question: what do you show to other people when you want to demo Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour >> >> Do you have a typical example? Do you use a kata? Or a full blown application? >> >> I like katas with TDD and Autotest. > > > OK I have never done a kata before so I should definitely watch your latest screencasts :) > > > You can also look at some coding-dojo recording at http://cara74.seasidehosting.st/seaside/seaside/pier/blog Now I remember that the Picasa sample looks like a very fun project, both relatively simple yet not naive (it talks with Google after all :)) http://www.pharocasts.com/2010/08/see-how-to-get-data-from-url-parse-xml.ht… > > Laurent. > > > >> >> I was also impressed by Hilaire demonstrating DrGeo. It's the typical application where Smalltalk brings features to the user. >> >> Laurent. >> >> >> What tools do you show? >> >> >> I'm looking for successful recipes/topos to present Pharo in a technical context: the premice is that people are interested by Pharo, but they will not be convinced by a toy case and a basic demo of tools. A TDD demo would be more efficient I guess. >> >> That would be cool to have a list of such showcases depending on the context (duration of demo, technical level of people, interest...) >> >> -- >> Simon Denier >> >> >> >> >> > > -- > Simon Denier > > > > -- Simon Denier

July 5, 2011

Re: [Pharo-users] Pharo showcase demos?

by laurent laffont

On Tue, Jul 5, 2011 at 6:01 PM, Simon Denier <simon.denier(a)gmail.com> wrote: > > On 5 juil. 2011, at 14:41, laurent laffont wrote: > > On Tue, Jul 5, 2011 at 11:54 AM, Simon Denier <simon.denier(a)gmail.com>wrote: > >> >> Question: what do you show to other people when you want to demo >> Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour >> >> Do you have a typical example? Do you use a kata? Or a full blown >> application? >> > > I like katas with TDD and Autotest. > > > > OK I have never done a kata before so I should definitely watch your latest > screencasts :) > > You can also look at some coding-dojo recording at http://cara74.seasidehosting.st/seaside/seaside/pier/blog Laurent. > > > I was also impressed by Hilaire demonstrating DrGeo. It's the typical > application where Smalltalk brings features to the user. > > Laurent. > > >> >> What tools do you show? >> >> >> I'm looking for successful recipes/topos to present Pharo in a technical >> context: the premice is that people are interested by Pharo, but they will >> not be convinced by a toy case and a basic demo of tools. A TDD demo would >> be more efficient I guess. >> >> That would be cool to have a list of such showcases depending on the >> context (duration of demo, technical level of people, interest...) >> >> -- >> Simon Denier >> >> >> >> >> > > -- > Simon Denier > > > >

July 5, 2011

Re: [Pharo-users] Pharo showcase demos?

by laurent laffont

On Tue, Jul 5, 2011 at 5:59 PM, Simon Denier <simon.denier(a)gmail.com> wrote: > > On 5 juil. 2011, at 14:41, laurent laffont wrote: > > On Tue, Jul 5, 2011 at 11:54 AM, Simon Denier <simon.denier(a)gmail.com>wrote: > >> >> Question: what do you show to other people when you want to demo >> Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour >> >> Do you have a typical example? Do you use a kata? Or a full blown >> application? >> > > I like katas with TDD and Autotest. > > I was also impressed by Hilaire demonstrating DrGeo. It's the typical > application where Smalltalk brings features to the user. > > > > Interesting. Does it include a bit of programming? I guess you can extend > DrGeo with your own programs. > Yes. Hilaire as recorded several screencasts on DrGeo website. Laurent. > > > > Laurent. > > >> >> What tools do you show? >> >> >> I'm looking for successful recipes/topos to present Pharo in a technical >> context: the premice is that people are interested by Pharo, but they will >> not be convinced by a toy case and a basic demo of tools. A TDD demo would >> be more efficient I guess. >> >> That would be cool to have a list of such showcases depending on the >> context (duration of demo, technical level of people, interest...) >> >> -- >> Simon Denier >> >> >> >> >> > > -- > Simon Denier > > > >

July 5, 2011

Re: [Pharo-users] Pharo showcase demos?

by Simon Denier

On 5 juil. 2011, at 14:41, laurent laffont wrote: > On Tue, Jul 5, 2011 at 11:54 AM, Simon Denier <simon.denier(a)gmail.com> wrote: > > Question: what do you show to other people when you want to demo Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour > > Do you have a typical example? Do you use a kata? Or a full blown application? > > I like katas with TDD and Autotest. OK I have never done a kata before so I should definitely watch your latest screencasts :) > > I was also impressed by Hilaire demonstrating DrGeo. It's the typical application where Smalltalk brings features to the user. > > Laurent. > > > What tools do you show? > > > I'm looking for successful recipes/topos to present Pharo in a technical context: the premice is that people are interested by Pharo, but they will not be convinced by a toy case and a basic demo of tools. A TDD demo would be more efficient I guess. > > That would be cool to have a list of such showcases depending on the context (duration of demo, technical level of people, interest...) > > -- > Simon Denier > > > > > -- Simon Denier

July 5, 2011

Re: [Pharo-users] Pharo showcase demos?

by Simon Denier

On 5 juil. 2011, at 12:04, Tudor Girba wrote: > I use Moose :) Well, Moose is my next step after the first introduction to Smalltalk :) But I would like to start with the common tools in Pharo. > > Doru > > > On 5 Jul 2011, at 10:54, Simon Denier wrote: > >> >> Question: what do you show to other people when you want to demo Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour >> >> Do you have a typical example? Do you use a kata? Or a full blown application? >> >> What tools do you show? >> >> >> I'm looking for successful recipes/topos to present Pharo in a technical context: the premice is that people are interested by Pharo, but they will not be convinced by a toy case and a basic demo of tools. A TDD demo would be more efficient I guess. >> >> That would be cool to have a list of such showcases depending on the context (duration of demo, technical level of people, interest...) >> >> -- >> Simon Denier >> >> >> >> > > -- > www.tudorgirba.com > > "Problem solving efficiency grows with the abstractness level of problem understanding." > > > > -- Simon Denier

July 5, 2011

Re: [Pharo-users] Pharo showcase demos?

by Simon Denier

On 5 juil. 2011, at 14:41, laurent laffont wrote: > On Tue, Jul 5, 2011 at 11:54 AM, Simon Denier <simon.denier(a)gmail.com> wrote: > > Question: what do you show to other people when you want to demo Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour > > Do you have a typical example? Do you use a kata? Or a full blown application? > > I like katas with TDD and Autotest. > > I was also impressed by Hilaire demonstrating DrGeo. It's the typical application where Smalltalk brings features to the user. Interesting. Does it include a bit of programming? I guess you can extend DrGeo with your own programs. > > Laurent. > > > What tools do you show? > > > I'm looking for successful recipes/topos to present Pharo in a technical context: the premice is that people are interested by Pharo, but they will not be convinced by a toy case and a basic demo of tools. A TDD demo would be more efficient I guess. > > That would be cool to have a list of such showcases depending on the context (duration of demo, technical level of people, interest...) > > -- > Simon Denier > > > > > -- Simon Denier

July 5, 2011

Re: [Pharo-users] Pharo showcase demos?

by laurent laffont

On Tue, Jul 5, 2011 at 11:54 AM, Simon Denier <simon.denier(a)gmail.com>wrote: > > Question: what do you show to other people when you want to demo > Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour > > Do you have a typical example? Do you use a kata? Or a full blown > application? > I like katas with TDD and Autotest. I was also impressed by Hilaire demonstrating DrGeo. It's the typical application where Smalltalk brings features to the user. Laurent. > > What tools do you show? > > > I'm looking for successful recipes/topos to present Pharo in a technical > context: the premice is that people are interested by Pharo, but they will > not be convinced by a toy case and a basic demo of tools. A TDD demo would > be more efficient I guess. > > That would be cool to have a list of such showcases depending on the > context (duration of demo, technical level of people, interest...) > > -- > Simon Denier > > > > >

July 5, 2011

Re: [Pharo-users] Pharo showcase demos?

by Tudor Girba

I use Moose :) Doru On 5 Jul 2011, at 10:54, Simon Denier wrote: > > Question: what do you show to other people when you want to demo Pharo/Smalltalk? in 15 minutes / 30 minutes / 1 hour > > Do you have a typical example? Do you use a kata? Or a full blown application? > > What tools do you show? > > > I'm looking for successful recipes/topos to present Pharo in a technical context: the premice is that people are interested by Pharo, but they will not be convinced by a toy case and a basic demo of tools. A TDD demo would be more efficient I guess. > > That would be cool to have a list of such showcases depending on the context (duration of demo, technical level of people, interest...) > > -- > Simon Denier > > > > -- www.tudorgirba.com "Problem solving efficiency grows with the abstractness level of problem understanding."

July 5, 2011