I'm also taking a look at IronPython's CTypes implementation, under Tomas' advice. I've noticed that their MemoryHolder<http://github.com/ironruby/ironruby/blob/master/Languages/IronPython/IronPython.Modules/_ctypes/MemoryHolder.cs>class derives from CriticalFinalizerObject<http://msdn.microsoft.com/en-us/library/system.runtime.constrainedexecution.criticalfinalizerobject.aspx>, which led me to the discovery of Constrained Execution Regions<http://msdn.microsoft.com/en-us/library/ms228973.aspx> .
I sent an inquiry to the IronPython mailing list<http://lists.ironpython.com/pipermail/users-ironpython.com/2010-October/013757.html>regarding the use CFO, and about CER in general, as I haven't had any exposure to either, and the MSDN docs are a little daunting. If anyone here would like to give an explanation of either one, that would be awesome. Any experience with either of those, Ryan? -Charles On Sun, Oct 3, 2010 at 10:39 PM, Ryan Riley <ryan.ri...@panesofglass.org>wrote: > Sounds good to me! > > Sent from my iPhone > > On Oct 3, 2010, at 8:04 PM, Charles Strahan <charles.c.stra...@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<http://www.cygwin.org/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> > 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.ri...@panesofglass.org> > ryan.ri...@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.stra...@gmail.com> >> charles.c.stra...@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.ri...@panesofglass.org><ryan.ri...@panesofglass.org> >> ryan.ri...@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.ri...@panesofglass.org> <ryan.ri...@panesofglass.org> >>> ryan.ri...@panesofglass.org >>> LinkedIn: >>> <http://www.linkedin.com/in/ryanriley><http://www.linkedin.com/in/ryanriley> >>> http://www.linkedin.com/in/ryanriley >>> Twitter: @panesofglass >>> Blog: <http://wizardsofsmart.net/> <http://wizardsofsmart.net/> >>> http://wizardsofsmart.net/ >>> Website: <http://panesofglass.org/> <http://panesofglass.org/> >>> http://panesofglass.org/ >>> >>> _______________________________________________ >>> Ironruby-core mailing list >>> <Ironruby-core@rubyforge.org> <Ironruby-core@rubyforge.org> >>> Ironruby-core@rubyforge.org >>> >>> <http://rubyforge.org/mailman/listinfo/ironruby-core><http://rubyforge.org/mailman/listinfo/ironruby-core> >>> http://rubyforge.org/mailman/listinfo/ironruby-core >>> >>> >> _______________________________________________ >> Ironruby-core mailing list >> <Ironruby-core@rubyforge.org>Ironruby-core@rubyforge.org >> <http://rubyforge.org/mailman/listinfo/ironruby-core> >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> >> _______________________________________________ >> Ironruby-core mailing list >> <Ironruby-core@rubyforge.org>Ironruby-core@rubyforge.org >> <http://rubyforge.org/mailman/listinfo/ironruby-core> >> http://rubyforge.org/mailman/listinfo/ironruby-core >> >> > _______________________________________________ > Ironruby-core mailing list > Ironruby-core@rubyforge.org > http://rubyforge.org/mailman/listinfo/ironruby-core > > > _______________________________________________ > Ironruby-core mailing list > Ironruby-core@rubyforge.org > http://rubyforge.org/mailman/listinfo/ironruby-core > >
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