Using FFI
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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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On 29 October 2013 16:27, Annick Fron <[hidden email]> wrote: Hi To use this syntax, you must load old FFI implementation. Or use NativeBoost: init: intarg with: chararg <primitive: 'primitiveNativeCall' module: 'NativeBoostPlugin'> self nbCall: 'void gst_init (int * intarg, char ** chararg)' module: 'blaba' -- Best regards, Igor Stasenko. |
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My problem is that the Raspberry does not support native boost (as yet !).
Where can I load the old FFI ? Le 29 oct. 2013 à 16:57, Igor Stasenko <[hidden email]> a écrit :
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Hi Annick, Esteban
On Oct 30, 2013, at 5:41 AM, Annick Fron <[hidden email]> wrote:
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Hi Annick, Probably (others will correct me if I am wrong ;-)) that the easiest is to write a VM plugin, add it in your ARM-based VM and recompile it. Cheers,
Luc #Luc 2013/10/30 Esteban Lorenzano <[hidden email]>
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In reply to this post by Annick Fron-3
AFAIK, it should be in Configurations browser. Else try this:Gofer new (Smalltalk at: #ConfigurationOfFFI) project lastVersion load On 30 October 2013 09:41, Annick Fron <[hidden email]> wrote:
-- Best regards, Igor Stasenko. |
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mmm... but again, AFAIK... Old FFI will not work in ARM.
On Oct 30, 2013, at 10:12 AM, Igor Stasenko <[hidden email]> wrote:
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On 30 October 2013 16:11, Esteban Lorenzano <[hidden email]> wrote:
yes. but i replied before knowing that its about ARM :)
-- Best regards, Igor Stasenko. |
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In reply to this post by Igor Stasenko
Hi Igor
I have done that, but still gets an error, do I need to remove NativeBoost ? Annick Le 30 oct. 2013 à 14:12, Igor Stasenko <[hidden email]> a écrit :
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On 31 October 2013 11:23, Annick Fron <[hidden email]> wrote:
FFI not supported on ARM
-- Best regards, Igor Stasenko. |
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Does Alien support ARM ? How to do FFI on ARM then if NativeBoost and FFI does not support it ? 2013/10/31 Igor Stasenko <[hidden email]>
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2013/10/31 Clément Bera <[hidden email]>
no
IMHO you should do a VM plugin easiest and fastest path currently Luc
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In reply to this post by Igor Stasenko
I hâve thé error on Windows Envoyé de mon iPod
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ok... then we have a problem.
but we need more data... which image version are you using? and which vm version? cheers, Esteban On Oct 31, 2013, at 11:24 AM, Annick Fron <[hidden email]> wrote:
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I am using the latest download from version 2
Annick Le 31 oct. 2013 à 18:47, Esteban Lorenzano <[hidden email]> a écrit :
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Annick
You cannot expect people to respond to you if you do not provide full context + information. On the long term people will stop to reply to you. Repeat after me: which image? which OS version? which vm version? I think that we are pretty nice people but do not force us to always ask the same questions. We are all busy. Stef On Nov 6, 2013, at 6:15 PM, Annick Fron <[hidden email]> wrote:
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I have answered I think Envoyé de mon iPod
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Hi Annick, I hope you are able to achieve what you are aiming for (I don't have the technical knowledge to help) but as a bystander I must make an observation that I hope will be useful to you. While your response "I have answered I think" could be technically correct if someone wade through the whole thread, its not really an appropriate answer to a specific question from someone whom you are asking devote their valuable time to your problem. If you can take the tie to read [1] you will understand where I am coming from. I personally found it very worthwhile reading and even like to refresh myself from time to time. [1] http://www.catb.org/esr/faqs/smart-questions.html I'd be interested in your thoughts on the article. In good faith, cheers -ben Annick Fron wrote: I have answered I think Envoyé de mon iPodLe 9 nov. 2013 à 02:01, Stéphane Ducasse [hidden email] a écrit : Annick You cannot expect people to respond to you if you do not provide full context + information. On the long term people will stop to reply to you. Repeat after me: which image? which OS version? which vm version? I think that we are pretty nice people but do not force us to always ask the same questions. We are all busy. StefOn Nov 6, 2013, at 6:15 PM, Annick Fron [hidden email] wrote: I am using the latest download from version 2 AnnickLe 31 oct. 2013 à 18:47, Esteban Lorenzano [hidden email] a écrit : ok... then we have a problem. but we need more data... which image version are you using? and which vm version? cheers, EstebanOn Oct 31, 2013, at 11:24 AM, Annick Fron [hidden email] wrote: I hâve thé error on Windows Envoyé de mon iPodLe 31 oct. 2013 à 14:51, Igor Stasenko [hidden email] a écrit :On 31 October 2013 11:23, Annick Fron [hidden email] wrote: Hi Igor I have done that, but still gets an error, do I need to remove NativeBoost ? Annick |
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Hi Annik, long time without a response to this, I'm sorry. I'm just catching up with this stuff (I'm really full of work this days). The problem here is that FFI does not have the type "int". You need to choose between short, ushort, long and ulong (depending of the real size you need).
And you do not have also char** (or any other pointer-pointer). But the non-typed nature of C comes to help here too :) You can easily declare:
<apicall: void 'gst_init' (short ulong) module: 'blabla'> since basically size will be the same (and that's the only thing that really matters).
you can see the allowed types here: ExternalType class>>#initializeFFIConstants cheers, Esteban On Sat, Nov 9, 2013 at 10:09 AM, <[hidden email]> wrote:
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