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

Re: [Pharo-users] Databases for Pharo that do not use FFI

by Mariano Martinez Peck

On Sat, Aug 10, 2013 at 10:44 AM, <vinref(a)gmail.com> wrote: > Hello > > I have been tinkering with Pharo long enough now to contemplate writing a > "serious" applications with it. An important consideration is databases. I > have been looking at SQLite but realise since it works through FFI it > probably blocks the VM whilst processing a query. Is this correct? > Yes. > > VoyageMongo looks interesting. PostgreSQL is supported too. Do either of > these work through FFI? > > Both Mongo and PostgreSQL Native Driver (implemented in Smalltalk), end up using sockets (no FFI), so from what I know, they do not lock the whole VM as with FFI. OpenDBXDriver uses OpenDBX library (using FFI) but at least OpenDBX supports async queries when the database backend supports them. That means that from Pharo we do a kind of busy waiting allowing other processes to be executed. But if the backend doesn't support async queries, then yes, OpenDBX will lock the Pharo VM while the query is being processed. I can give more details about this busy waiting in DBXTalk if you want. Cheers, > Many thanks in advance. > > -- Mariano http://marianopeck.wordpress.com

Aug. 10, 2013

Databases for Pharo that do not use FFI

by vinref＠gmail.com

Hello I have been tinkering with Pharo long enough now to contemplate writing a "serious" applications with it. An important consideration is databases. I have been looking at SQLite but realise since it works through FFI it probably blocks the VM whilst processing a query. Is this correct? VoyageMongo looks interesting. PostgreSQL is supported too. Do either of these work through FFI? Many thanks in advance.

Aug. 10, 2013

Re: [Pharo-users] New version of PharoSound

by StÃ©phane Ducasse

> Hi Stephane, > > I'm always using fresh stable version with latest updates. > Here it's Pharo 2.0 summer edition on Unbutu 12.04 64bits. > > In fact, there are a lot of wrong ways to load packages and i use them all > :) (i'm novice !!) > no problem. > So i try to use the wright way doing : > > ((Smalltalk at: #ConfigurationOfPharoSound) project version:'5.2') load. > > Sound work well. ok good to know. > Version 5.3 and more don't seem to work for 2.0. This is strange because I loaded 5.3 (I will retry). > > Stable version doesn't work with > > ConfigurationOfPharoSound project load: #stable. can you check the stable method? because > > So ... i will update my blog to give better informations ! > > Thanks for your advices ! > > Xavier. > > > > > > > -- > View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702032p4702994.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Aug. 9, 2013

Re: [Pharo-users] New version of PharoSound

by Xavier MESSNER

Hi Stephane, I'm always using fresh stable version with latest updates. Here it's Pharo 2.0 summer edition on Unbutu 12.04 64bits. In fact, there are a lot of wrong ways to load packages and i use them all :) (i'm novice !!) So i try to use the wright way doing : ((Smalltalk at: #ConfigurationOfPharoSound) project version:'5.2') load. Sound work well. Version 5.3 and more don't seem to work for 2.0. Stable version doesn't work with ConfigurationOfPharoSound project load: #stable. So ... i will update my blog to give better informations ! Thanks for your advices ! Xavier. -- View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702032p4702994.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 9, 2013

Re: [Pharo-users] New version of PharoSound

by StÃ©phane Ducasse

Hi Xavier on which version of Pharo are you working? How to do you load the code? do you use stable? Because if you read the class comment of the configuration you will see that the latest version works only for Pharo30 while the previous one works on both Pharo 20 and pharo 30. The configuration handles that well when you load the stable it should load the corresponding one. Let me know if this is not the case Stef > Hi Stef, > > I've used smalltalkhub instead of squeaksource and it still work with the > same packages i used in my tests, but when i load latest version sound stop > working. > After trying all packages i can tell that sound stop working after loading > package Sound-janniklaval.74.mcz or Sound-StephaneDucasse.72.mcz. > > When i look into changes i can see that in resumePlaying:quickStart > > BaseSoundSystem soundEnabled ifFalse: [^ self]. > ... > BaseSoundSystem soundQuickStart ifFalse: [doQuickStart := false]. > > In Sound-jannikaval.72.mcz it was > > SoundService soundEnabled ifFalse: [^ self]. > ... > self soundQuickStart ifFalse: [doQuickStart := false]. > > Not really big changes but this make sound not working anymore. > If i rollback only these 2 lines, sound work again. > > I suppose these changes are there for cleaning purpose and to have a more > uptodate sound system. I think that some stuff still missing for the moment. > It's just a question of time and hard work. > > For the moment i'll stay with Sound-Jannikaval.72. It will help me start > some sound stuff in Pharo. > I keep an eye on new versions in the same time :) > > Xavier. > > > > -- > View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702032p4702934.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Aug. 9, 2013

Re: [Pharo-users] New version of PharoSound

by Xavier MESSNER

Hi Stef, I've used smalltalkhub instead of squeaksource and it still work with the same packages i used in my tests, but when i load latest version sound stop working. After trying all packages i can tell that sound stop working after loading package Sound-janniklaval.74.mcz or Sound-StephaneDucasse.72.mcz. When i look into changes i can see that in resumePlaying:quickStart BaseSoundSystem soundEnabled ifFalse: [^ self]. ... BaseSoundSystem soundQuickStart ifFalse: [doQuickStart := false]. In Sound-jannikaval.72.mcz it was SoundService soundEnabled ifFalse: [^ self]. ... self soundQuickStart ifFalse: [doQuickStart := false]. Not really big changes but this make sound not working anymore. If i rollback only these 2 lines, sound work again. I suppose these changes are there for cleaning purpose and to have a more uptodate sound system. I think that some stuff still missing for the moment. It's just a question of time and hard work. For the moment i'll stay with Sound-Jannikaval.72. It will help me start some sound stuff in Pharo. I keep an eye on new versions in the same time :) Xavier. -- View this message in context: http://forum.world.st/New-version-of-PharoSound-tp4702032p4702934.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Aug. 8, 2013

Pharo FFI Error: "Could not coerce arguments"

by vinref＠gmail.com

Hello When trying out the FFI-Unix-Examples (X11Display class > #coloredEllipses or #coloredRectangels) I get the error: "Could not coerce arguments". When trying x11Draw I get a MNU: receiver of "display" is nil. I am running Pharo2 on NetBSD 6.1. I know this is not the usual Linux/MacOS/Windows, but everything else works fine, except for FFI. I am thinking I am quite close to getting FFI to work, just the from of the pragma that is wrong. Any help is much appreciated.

Aug. 8, 2013

Re: [Pharo-users] [DOC] Building and deploying your first web app with Pharo

by Stephan Eggermont

The pharo image installed by curl get.pharo.org/20+vm | bash currently is an image without the --no-quit option Stephan

Aug. 8, 2013

Re: [Pharo-users] smalltalkhub is down ?

by Yuriy Tymchuk

All day have passed ;) Now it's up. uko On 8 ÑÐµÑÐ¿. 2013, at 20:35, Ihor Mykhalevych <ihor.mykhalevych(a)unikernel.net> wrote: > It's not down, at least it works from my side. > > Ihor > > On 08.08.13 10:11, Luc Fabresse wrote: >> >> >> 2013/8/8 jannik.laval <jannik.laval(a)gmail.com> >> Or is it just me ? >> >> it is not just you: >> http://www.downforeveryoneorjustme.com/http://smalltalkhub.com >> >> Luc >> >> >> Jannik >> >> >

Aug. 8, 2013

Re: [Pharo-users] smalltalkhub is down ?

by Ihor Mykhalevych

It's not down, at least it works from my side. Ihor On 08.08.13 10:11, Luc Fabresse wrote: > > > 2013/8/8 jannik.laval <jannik.laval(a)gmail.com > <mailto:jannik.laval@gmail.com>> > > Or is it just me ? > > > it is not just you: > http://www.downforeveryoneorjustme.com/http://smalltalkhub.com > > Luc > > > Jannik > >

Aug. 8, 2013