[Ironruby-core] IronRuby FFI

Ryan Riley ryan.riley at panesofglass.org
Sun Oct 3 23:39:33 EDT 2010


Sounds good to me!

Sent from my iPhone

On Oct 3, 2010, at 8:04 PM, Charles Strahan <charles.c.strahan at gmail.com> wrote:

> Ryan,
> 
> Sorry for the long delay - I meant to give it some thought before I got back to you... and know it's been quite some time.
> 
> I think it would be a good idea to replicate JFFI, using P/Invoke directly, if possible (as opposed to P/Invoking libffi). That would give us a good separation of concerns and a reusable library, and possibly an easy way to port any Java/JRuby code that uses JFFI to C#/.NET too.
> 
> I'm about to set up an NFFI repo at http://github.com/cstrahan/nffi. - I suppose you could fork it and send me pull requests (unless you have a better workflow in mind - I'm definitely not a git guru). I've been learning C/C++ the last couple months, so I should be able to write simple DLL to run our tests against. I think I'll take a TDD approach to driving out the C# lib. Once we have NFFI working, it should be relatively straightforward to expose that to the IronRuby runtime. I'll try to get something pushed out to my repo by the end of tomorrow - I'll keep you in the loop.
> 
> That's what I have in mind, but I'm open to suggestions.
> 
> -Charles
> 
> 
> 
> On Sat, Aug 21, 2010 at 9:23 PM, Ryan Riley <ryan.riley at panesofglass.org> wrote:
> Charles, I'm happy to work with you to get this done. I'm getting close to finishing some projects and will have more time to work on it in a few weeks. I will send the info I got from the mono-devel list. Where/how do you want to start?
> 
> Ryan
> 
> Sent from my iPhone
> 
> On Aug 20, 2010, at 1:49 PM, Charles Strahan <charles.c.strahan at gmail.com> wrote:
> 
>> Ryan, 
>> 
>> I'm right there with you, only I looked at JFFI for inspiration (didn't know mono had anything - could you share more about that?). In fact, In my infinite laziness, I posted a job for a couple hundred bucks on Rent-A-Coder, hoping someone could essentially port JFFI to C#, so I could focus on writing the actually IronRuby library... but nothing came of that.
>> 
>> I'm tempted to suck it up and start coding this myself. Would you be interested in working together?  I figured I'd take the approach of essentially writing "NFFI", and then write an IronRuby lib around that.
>> 
>> -Charles
>> 
>> 
>> On Fri, Aug 20, 2010 at 2:33 PM, Ryan Riley <ryan.riley at panesofglass.org> wrote:
>> I know that we've discussed this in the past, but I'm interested in doing it for two reasons:
>> 1. We use mono with a bridge to ObjectiveC and Cocoa, and we'd like to investigate libffi via mono as a potential replacement for our current bridge.
>> 2. I'm interested just for the sake of learning more about FFI.
>> 
>> Mono appears to have had a libffi implementation that was later removed, so I think I have a place to start. However, I'm not sure that's the right starting point. Does anyone have a suggestion for how to get started? I've been taking a look at libffi and DllImport, but I'm not sure if those are the right directions, something else, or what.
>> 
>> Thanks,
>> 
>> Ryan Riley
>> 
>> Email: ryan.riley at panesofglass.org
>> LinkedIn: http://www.linkedin.com/in/ryanriley
>> Twitter: @panesofglass
>> Blog: http://wizardsofsmart.net/
>> Website: http://panesofglass.org/
>> 
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