From: Charles Oliver Nutter <charles.nutter@...>
Date: 2008-11-04T06:45:27+09:00
Subject: Re: [ANN] FFI 0.1.1 (Foreign Function Interface) for Ruby 1.8.6/7 and 1.9

Sylvain Joyeux wrote:
> On Tue, Nov 04, 2008 at 04:54:35AM +0900, Charles Oliver Nutter wrote:
>> Charles Oliver Nutter wrote:
>>> Charles Oliver Nutter wrote:
>>>> We (JRuby and Rubinius contributors) designed in the ability to  
>>>> specify calling convention for a given library bound through FFI.  
>>>> Largely this was needed to support Win32's stdcall, but if Linux/PPC  
>>>> has a different convention and libffi supports it, then FFi will too  
>>>> (though we may have to add it to the list of accepted conventions).
>>>>
>>>> I'll check on the syntax we're supporting and get back to ya.
>>> In the body of the module you're binding:
>>>
>>> ffi_convention :stdcall # :default is for normal C convention
>>>
>>> We could add whatever convention Linux/PPC needs.
>> Or, duh, have FFI use the appropriate default convention on the target  
>> platform. Either way, it should be simple to deal with.
> 
> Thanks Charlie, but I have already my own library which does more than Ruby-FFI
> (typelib.sf.net and typelib.sf.net/html/ruby) so I'll probably be using libffi
> directly.

Is your library compatible with JRuby? I think that's a key point for 
Ruby FFI.

- Charlie