[Mono-dev] Add constants for directory and file max length name? (on windows)

[Jérôme De Cuyper]

I'm working on the following bug:
https://bugzilla.novell.com/show_bug.cgi?id=<https://bugzilla.novell.com/show_bug.cgi?id=383909>
383909 <https://bugzilla.novell.com/show_bug.cgi?id=383909>

<https://bugzilla.novell.com/show_bug.cgi?id=383909>On a windows box, the
size of the name of file may not be longer than 260 and the size of the name
of a directory must be smaller than 248 chars. I was thinking about adding a
constant to the Path.cs file and then using it to apply restrictions
when necessary (inside DirectoryInfo's constructor for instance). But I'm
not sure that adding those constants is the best cross-platform way to
handle this. Maybe it's is enough to use hard-coded values inside a
"IsRunningOnWindows" conditional. Any thoughts?

Jerome.




On Mon, Dec 13, 2010 at 6:08 PM, Charles Strahan <
charles.c.strahan at gmail.com> wrote:

> Jon,
>
> If I understand correctly, we'd have two options for using DLLImport:
>
>  1.) Emit classes at runtime, containing the necessary native
> function adorned with the DLLImport attribute.
>  2.) Use DLLImport/PInvoke to provide access to
> dlopen/LoadLibrary[Ex] and other similar functions, to dynamically
> load DLLs and invoke their functions.
>
> Is this correct? Option #1 seems relatively feasible, although we
> would give up the ability to use our RubyFFI implementation where
> Reflection.Emit is not available; Option #2 seems rather daunting.
>
>
> Thanks,
>
> -Charles
>
> >On Thu, 2010-08-19 at 10:35 -0700, Ryan Riley wrote:
> >> Has anyone created or investigated Mono support for libffi?
> >
> >Once upon a time, Mono used libffi directly.  It was removed in r724
> >(git SHA1 ID d0cd6059c1b2edad12eb67cb8e64b3cd187be1b1) on 2001-09-05
> >(and earlier).  Unfortunately, the commit message is useless, but iirc
> >the reason for removing it was because it was significantly slower than
> >what Mono could do itself.
> >
> >> I'd like to contribute this to help support Ruby-FFI for IronRuby.
> >
> >I imagine IronRuby doesn't require it's own FFI, it would just use the
> >usual .NET FFI of DllImport, no?
> >
> >As for supporting Ruby-FFI, perhaps you can extend the existing Mono FFI
> >support to support Ruby?  I don't know what would be involved...
> >
> > - Jon
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