November 2013 - Pharo-users

Using FFI
by Annick Fron Dec. 10, 2013

Dec. 10, 2013

Hi I want to launch a simple init with the following C signature : void gst_init (int *argc, char **argv[]) If I write <apicall: void 'gst_init' (int*, char**) module: 'blabla'> I get a Smalltalk syntax error Annick Fron

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Programmatic Scoped Browsing
by Sean P. DeNigris Dec. 7, 2013

Dec. 7, 2013

I tried: SystemNavigation new environment: RPackage allInstances third asEnvironment; browseAllSelect: aBlock but it still searched the whole image. I looked for examples in the image of manually building an environment/SystemDictionary, but didn't find anything helpful. Thanks. ----- Cheers, Sean -- View this message in context: http://forum.world.st/Programmatic-Scoped-Browsing-tp4724820.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Add menu item to Nautilus context menu on selected packages?
by MartinW Dec. 2, 2013

Dec. 2, 2013

Hi, i have a tool that works on packages. So far i added a wizard to the world menu, but i would rather add a menu item to the Nautilus context menu on selected packages - is this possible? Best regards, Martin. -- View this message in context: http://forum.world.st/Add-menu-item-to-Nautilus-context-menu-on-selected-pa… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Mongo cache vs database objects
by Sabine KnÃ¶fel Dec. 2, 2013

Dec. 2, 2013

Hi Esteban, all, I work with mongo daily an it works fine, I am very happy with it. As you told me, with >>VORepository current reset. I can force re loading all objects from database and resetting the cache completely. This is helpful for development eg. after changing the magritte descriptions. My question: Is there a possibility to make a query and tell voyage that THIS query should be done within the database and NOT within the cached objets? And that all objects and the child objects from this query are loaded freshly from database into the cache. My concrete situation: I want that if the user logs in, his objects are loaded from database and NOT from cache. This means the person, his trips etc. And the question coming along with this: How long does the cache keeps objects/when are they reseted (except the >>VORepository current reset)? If I would never take a new image and never make a reset, would all objects remain in the image (and the database objects wold never be read)? In this case what about the size of the image? Regards Sabine -- View this message in context: http://forum.world.st/Mongo-cache-vs-database-objects-tp4725554.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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Finalization
by Sean P. DeNigris Nov. 29, 2013

Nov. 29, 2013

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? 2. This approach would be a good way to manage these types of resources? Any hints would be appreciated as to the best way to accomplish managing these... 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.

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reporting bugs
by Nicolai Hess Nov. 29, 2013

Nov. 29, 2013

What do I have to do for getting access to pharo.fogbugz.com for bug reporting? regards Nicolai

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What is "Primitives"?
by Nicolai Hess Nov. 29, 2013

Nov. 29, 2013

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.

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Any configuration file parsing library
by Damien Cassou Nov. 29, 2013

Nov. 29, 2013

Hi, I'm looking for a library to parse configuration files. I have no configuration format yet so I'm open. I was thinking of a typical INI format: [section1] param1=value1 param2=value2 [section2] param1=value3 ... -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." Winston Churchill

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Snap4Arduino pre-alpha release
by Bernat Romagosa Nov. 28, 2013

Nov. 28, 2013

Hi list! I know people don't usually make announcements of this kind here, but I've gotten much help from this list on SerialPlugin and NativeBoost questions, so I wanted to let you know I've managed to release the pre-alpha version of Snap4Arduino. Snap! is a Scratch reimplementation written in Javascript by Jens MÃ¶nig and Brian Harvey, with advanced programming concepts such as first order functions, closures or continuations. As Brian Harvey puts it: *In the glory days of the MIT Logo Lab, we used to say, âLogo is Lisp > disguised as BASIC.â Now, with its first class procedures, lexical scope, > and first class continuations, Snap! is Scheme disguised as Scratch.* Snap4Arduino is a modification of Snap! plus a server written in Pharo that allow you to live-program Arduino boards very easily. http://s4a.cat/snap I've used Zinc as a web and websockets server, and the Arduino package to achieve communication with the board. I've decided to not wait for the MacOS CogVM serial port bugfix because I really wanted to release something before the end of November, but everything else is in place, so once the VM is fixed, it'll be just plug and release! :) Thanks a lot for your help! -- Bernat Romagosa.

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[Voyage] #selectAll:sortBy: not implemented?
by VÃctor Casado Nov. 28, 2013

Nov. 28, 2013

Hi all! I've recently started to use MongoDB and Voyage in a project of my work (I find it too interesting!) following this tutorial: https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/lastSucces… I've been facing issues to sort the elements of my database, specifically using the /selectAllSortBy:/ message, which I see is not fully implemented. Maybe I am wrong? Instead of this, I used /selectMany:sortBy:/ and it does the trick, but I'd like to know if the previous one will be implemented some day. Regards, PS: Sorry but I don't know if this has been discused, if so, I didn't found it. -- View this message in context: http://forum.world.st/Voyage-selectAll-sortBy-not-implemented-tp4725324.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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