November 2013 - Pharo-users

Re: [Pharo-users] Finalization

by Sean P. DeNigris

> #beFinalizable, which doesn't seem to exist. I guess it was just an example, but seems like it should be added, no? Do you agree that #beFinalizable would be a nice addition? If so, I will open an issue... Igor Stasenko wrote >> See NBExternalResourceManager class comment So the point of using NBExternalResourceManager is that it adds session awareness to finalization so that one doesn't attempt to release invalid external resources from previous sessions, right? I was also thinking that maybe FMOD should also have a shutDown: which collects all external resource objects and cleans them up. Does that sound like a good idea? Overkill? ----- Cheers, Sean -- View this message in context: http://forum.world.st/Finalization-tp4726046p4726257.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 29, 2013

Re: [Pharo-users] reporting bugs

by Sean P. DeNigris

StÃ©phane Ducasse wrote > ***EXCELLENT*** +1. Really nice job. Thanks for taking the time :) I edited the wiki welcome page to make your instructions more prominent, linking to them in the 1st section and giving them a separate line in section 2. ----- Cheers, Sean -- View this message in context: http://forum.world.st/reporting-bugs-tp4725766p4726239.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Nov. 29, 2013

Re: [Pharo-users] What is "Primitives"?

by phil＠highoctane.be

There is no VMMaker UI tool anymore for the PharoVM. For continuous integration, it sucks anyway. So, you have the VMBuilders and CMake related classes. I like that better. There are options in each build method for specifying which plugins are to be used. e.g. do not use the ObjectiveC bridge in Windows... Phil --- 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 On Fri, Nov 29, 2013 at 2:32 PM, Nicolai Hess <nicolaihess(a)web.de> wrote: > Thank you. > It is not about how to build a vm. > I do have some experience on this (mostly squeak vm). > But I find it rather difficult to follow the current active way on doing > so. > In Mariano blogs he is using vmmaker tool as well. > It just didn't work for pharo anymore. > For example, you can load vmmaker packages. (really difficult on with > a normal image (you need all kind of dependent packages), or you > can use the generator.image from pharo.src. > But > VMMakerTool openInWorld > fails. > I don't know > - why, > - if it is supposed to do so, > - or how other people working with vm source. > > regards > nicolai > > > > 2013/11/29 Ignacio MatÃas Sniechowski <0800nacho(a)gmail.com> > >> Hi Nicolai, >> A very good source is Mariano Martinez Peck's excellent blog. He posted >> extensively on building a VM, managing plugins, pretty cover all aspects. >> If you want to take a look, his journey begins here: >> http://marianopeck.wordpress.com/2011/03/31/journey-through-the-vm/ >> >> I found it really good and enlightener. >> best >> Nacho >> >> >> >> *Lic. Ignacio Sniechowski, MBA* >> >> >> >> >> >> >> On Fri, Nov 29, 2013 at 6:55 AM, Nicolai Hess <nicolaihess(a)web.de> wrote: >> >>> Looking at the code for DiskStore>>basicEntryAt: >>> I find this code: >>> "Primitives lookupDirectory: encodedPath filename: encodedBasename)" >>> What is this "Primitives" not a class? I am suprised there is some code >>> that I can not find the source for. >>> >>> Ok, it has something to do with vm primitives, and I know that code like >>> <primitive: 'primitiveDirectoryEntry' module: 'FilePlugin'> >>> is in the vmmaker-package for FilePlugin. >>> >>> BTW it is terrible hard to load vmmaker in a "normal" image. Now I use >>> the generator.image from pharo http://files.pharo.org/vm/src/. >>> But even in this image it is not possible to load the vmmaker tool. >>> >>> >>> >> >

Nov. 29, 2013

Re: [Pharo-users] What is "Primitives"?

by Nicolai Hess

Thank you. It is not about how to build a vm. I do have some experience on this (mostly squeak vm). But I find it rather difficult to follow the current active way on doing so. In Mariano blogs he is using vmmaker tool as well. It just didn't work for pharo anymore. For example, you can load vmmaker packages. (really difficult on with a normal image (you need all kind of dependent packages), or you can use the generator.image from pharo.src. But VMMakerTool openInWorld fails. I don't know - why, - if it is supposed to do so, - or how other people working with vm source. regards nicolai 2013/11/29 Ignacio MatÃas Sniechowski <0800nacho(a)gmail.com> > Hi Nicolai, > A very good source is Mariano Martinez Peck's excellent blog. He posted > extensively on building a VM, managing plugins, pretty cover all aspects. > If you want to take a look, his journey begins here: > http://marianopeck.wordpress.com/2011/03/31/journey-through-the-vm/ > > I found it really good and enlightener. > best > Nacho > > > > *Lic. Ignacio Sniechowski, MBA* > > > > > > > On Fri, Nov 29, 2013 at 6:55 AM, Nicolai Hess <nicolaihess(a)web.de> wrote: > >> Looking at the code for DiskStore>>basicEntryAt: >> I find this code: >> "Primitives lookupDirectory: encodedPath filename: encodedBasename)" >> What is this "Primitives" not a class? I am suprised there is some code >> that I can not find the source for. >> >> Ok, it has something to do with vm primitives, and I know that code like >> <primitive: 'primitiveDirectoryEntry' module: 'FilePlugin'> >> is in the vmmaker-package for FilePlugin. >> >> BTW it is terrible hard to load vmmaker in a "normal" image. Now I use >> the generator.image from pharo http://files.pharo.org/vm/src/. >> But even in this image it is not possible to load the vmmaker tool. >> >> >> >

Nov. 29, 2013

Re: [Pharo-users] What is "Primitives"?

by Nicolai Hess

Thank you. I thought the pharo vmbuilder way is only for cog-vms, and the traditional way for the interpreter vm would still work. There is a vmmaker chapter at http://pharo.gemtalksystems.com/book/Virtual-Machine/Building/VMMakerTool 2013/11/29 phil(a)highoctane.be <phil(a)highoctane.be> > Hi Nicolai, > > Question1 > > The Primitives you mention is a class variable. > Put your cursor on it and hit the blue "C" button on the right of the > Nautilus code pane to see where it is used. > > You'll notice that it is initialized in DiskStore class>>useFilePlugin > > useFilePlugin > Primitives := FilePluginPrims new > > FilePluginPrims in turn provides an interface to the real file plugin. > > e.g. > FilePluginPrims >> size: id > "Answer the size of this file." > > <primitive: 'primitiveFileSize' module: 'FilePlugin'> > self primitiveFailed > > So, class variables are WrittenLikeThis and you may thing that it is a > class. But it is either a class variable or a global (e.g. Display, > Transcript) > > In a workspace, try: Display class <printIt> Transcript class <printIt> > > You'll see the real classes. > > When using spotlight for example, you'll never find anything if you type > Display for example. Even if the completion will propose something to you > (hey, someone fixing this?) > > > > > Question2 > > If you want to load VMMaker, you have to do it from the GitHub directions. > > There is a step where you do: > > cd image && ./newImage.sh > > and it loads all you need and you end up with the generator image. > > I've been using it in my fork https://github.com/philippeback/pharo-vm > and the canonical repo is https://github.com/pharo-project/pharo-vm > > Follow the directions of the README.md and you'll be ready with ease. > If you use OSX, it is working very smoothly. > Windows will require some more fiddling but there is nothing stopping you. > > The generator already has VMMaker in. > > Now, please bear in mind that the PharoVM isn't the same VM as Squeak > uses, so, the process is not with the Morphic based VMMaker tool (green > thing) where you select plugins etc. > > Here, you are going to use the PharoVMBuilder which does all of the > automation. > > ./pharo generator.image eval 'PharoVMBuilder buildWin32' > > will generate all CMake files, all Slang based files etc. > > I plan to do a video of all the steps very soon. This will help. > > Now, the VMSimulator isn't fully operational in the PharoVM, I am working > on getting it right. > At this point, it executes bytecodes without problems, but we need to port > some more code to the new transcript, filesystem etc. > Just a question of doing it. I am looking at that, hopefully this will > work in december. > > > Hope this clarifies the situation for you. > > Enjoy, > Phil > > > > --- > 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 > > > > > On Fri, Nov 29, 2013 at 10:55 AM, Nicolai Hess <nicolaihess(a)web.de> wrote: > >> Looking at the code for DiskStore>>basicEntryAt: >> I find this code: >> "Primitives lookupDirectory: encodedPath filename: encodedBasename)" >> What is this "Primitives" not a class? I am suprised there is some code >> that I can not find the source for. >> >> Ok, it has something to do with vm primitives, and I know that code like >> <primitive: 'primitiveDirectoryEntry' module: 'FilePlugin'> >> is in the vmmaker-package for FilePlugin. >> >> BTW it is terrible hard to load vmmaker in a "normal" image. Now I use >> the generator.image from pharo http://files.pharo.org/vm/src/. >> But even in this image it is not possible to load the vmmaker tool. >> >> >> >

Nov. 29, 2013

Re: [Pharo-users] What is "Primitives"?

by Ignacio MatÃas Sniechowski

Hi Nicolai, A very good source is Mariano Martinez Peck's excellent blog. He posted extensively on building a VM, managing plugins, pretty cover all aspects. If you want to take a look, his journey begins here: http://marianopeck.wordpress.com/2011/03/31/journey-through-the-vm/ I found it really good and enlightener. best Nacho *Lic. Ignacio Sniechowski, MBA* On Fri, Nov 29, 2013 at 6:55 AM, Nicolai Hess <nicolaihess(a)web.de> wrote: > Looking at the code for DiskStore>>basicEntryAt: > I find this code: > "Primitives lookupDirectory: encodedPath filename: encodedBasename)" > What is this "Primitives" not a class? I am suprised there is some code > that I can not find the source for. > > Ok, it has something to do with vm primitives, and I know that code like > <primitive: 'primitiveDirectoryEntry' module: 'FilePlugin'> > is in the vmmaker-package for FilePlugin. > > BTW it is terrible hard to load vmmaker in a "normal" image. Now I use > the generator.image from pharo http://files.pharo.org/vm/src/. > But even in this image it is not possible to load the vmmaker tool. > > >

Nov. 29, 2013

Re: [Pharo-users] Finalization

by Igor Stasenko

On 29 November 2013 07:21, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > I found the following list threads... > > http://forum.world.st/Finalization-question-td1300962.html mentions > #beFinalizable, which doesn't seem to exist. I guess it was just an > example, > but seems like it should be added, no? > > In http://forum.world.st/object-finalization-td3771196.html Igor suggested > that the key is to do: > WeakRegistry default add: obj. > > This guarantees? that #finalize will be called when the object is garbage > collected. > > I'm asking regarding my recent work wrapping the FMOD sound library with > NativeBoost. I'm thinking my NBExternalObjects should release their > resources when no longer referenced. I want to say: > FmodSound>>#finalize > self primReleaseSound: handle. > > So I've pieced together that I would have to also write: > FmodSound>>new > instance := super new > whatever; > beFinalizable; > yourself. > > Object>>#beFinalizable > WeakRegistry default add: self. > > Am I correct that: > 1. The above code would cause the resource to be safely released when the > sound object was garbage collected? > yes > 2. This approach would be a good way to manage these types of resources? > > yes > Any hints would be appreciated as to the best way to accomplish managing > these... > > See NBExternalResourceManager class comment > Thanks! > > > > ----- > Cheers, > Sean > -- > View this message in context: > http://forum.world.st/Finalization-tp4726046.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > -- Best regards, Igor Stasenko.

Nov. 29, 2013

Re: [Pharo-users] What is "Primitives"?

by phil＠highoctane.be

Hi Nicolai, Question1 The Primitives you mention is a class variable. Put your cursor on it and hit the blue "C" button on the right of the Nautilus code pane to see where it is used. You'll notice that it is initialized in DiskStore class>>useFilePlugin useFilePlugin Primitives := FilePluginPrims new FilePluginPrims in turn provides an interface to the real file plugin. e.g. FilePluginPrims >> size: id "Answer the size of this file." <primitive: 'primitiveFileSize' module: 'FilePlugin'> self primitiveFailed So, class variables are WrittenLikeThis and you may thing that it is a class. But it is either a class variable or a global (e.g. Display, Transcript) In a workspace, try: Display class <printIt> Transcript class <printIt> You'll see the real classes. When using spotlight for example, you'll never find anything if you type Display for example. Even if the completion will propose something to you (hey, someone fixing this?) Question2 If you want to load VMMaker, you have to do it from the GitHub directions. There is a step where you do: cd image && ./newImage.sh and it loads all you need and you end up with the generator image. I've been using it in my fork https://github.com/philippeback/pharo-vm and the canonical repo is https://github.com/pharo-project/pharo-vm Follow the directions of the README.md and you'll be ready with ease. If you use OSX, it is working very smoothly. Windows will require some more fiddling but there is nothing stopping you. The generator already has VMMaker in. Now, please bear in mind that the PharoVM isn't the same VM as Squeak uses, so, the process is not with the Morphic based VMMaker tool (green thing) where you select plugins etc. Here, you are going to use the PharoVMBuilder which does all of the automation. ./pharo generator.image eval 'PharoVMBuilder buildWin32' will generate all CMake files, all Slang based files etc. I plan to do a video of all the steps very soon. This will help. Now, the VMSimulator isn't fully operational in the PharoVM, I am working on getting it right. At this point, it executes bytecodes without problems, but we need to port some more code to the new transcript, filesystem etc. Just a question of doing it. I am looking at that, hopefully this will work in december. Hope this clarifies the situation for you. Enjoy, Phil --- 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 On Fri, Nov 29, 2013 at 10:55 AM, Nicolai Hess <nicolaihess(a)web.de> wrote: > Looking at the code for DiskStore>>basicEntryAt: > I find this code: > "Primitives lookupDirectory: encodedPath filename: encodedBasename)" > What is this "Primitives" not a class? I am suprised there is some code > that I can not find the source for. > > Ok, it has something to do with vm primitives, and I know that code like > <primitive: 'primitiveDirectoryEntry' module: 'FilePlugin'> > is in the vmmaker-package for FilePlugin. > > BTW it is terrible hard to load vmmaker in a "normal" image. Now I use > the generator.image from pharo http://files.pharo.org/vm/src/. > But even in this image it is not possible to load the vmmaker tool. > > >

Nov. 29, 2013

Re: [Pharo-users] What is "Primitives"?

by ClÃ©ment Bera

Well use the generator image you can find on the pharo repo, it is hard to build such an image by hand. This code: Primitives lookupDirectory: encodedPath filename: encodedBasename Should be: FilePluginPrims lookupDirectory: encodedPath filename: encodedBasename Now I don't why this was not correct (File management is pure magic to me). I would recommend you to post question about VMMaker not in this mailing list, because few people can answer here, but instead in the pharo-dev mailing list OR Squeak-vm-dev. Have fun with VMMaker 2013/11/29 Nicolai Hess <nicolaihess(a)web.de> > Looking at the code for DiskStore>>basicEntryAt: > I find this code: > "Primitives lookupDirectory: encodedPath filename: encodedBasename)" > What is this "Primitives" not a class? I am suprised there is some code > that I can not find the source for. > > Ok, it has something to do with vm primitives, and I know that code like > <primitive: 'primitiveDirectoryEntry' module: 'FilePlugin'> > is in the vmmaker-package for FilePlugin. > > BTW it is terrible hard to load vmmaker in a "normal" image. Now I use > the generator.image from pharo http://files.pharo.org/vm/src/. > But even in this image it is not possible to load the vmmaker tool. > > >

Nov. 29, 2013

What is "Primitives"?

by Nicolai Hess

Looking at the code for DiskStore>>basicEntryAt: I find this code: "Primitives lookupDirectory: encodedPath filename: encodedBasename)" What is this "Primitives" not a class? I am suprised there is some code that I can not find the source for. Ok, it has something to do with vm primitives, and I know that code like <primitive: 'primitiveDirectoryEntry' module: 'FilePlugin'> is in the vmmaker-package for FilePlugin. BTW it is terrible hard to load vmmaker in a "normal" image. Now I use the generator.image from pharo http://files.pharo.org/vm/src/. But even in this image it is not possible to load the vmmaker tool.

Nov. 29, 2013