Re: Mime type woes in beagle

[Todd Berman <tberman sevenl net>]

Im not sure, but I know that that code works for us in MD, except we use 
gnome_vfs_get_mime_type (string uri); and i think it requires file:/// urls.

Thats the best help i can give.

--Todd

Michael Levy wrote:
> Sorry, I forgot the attachement! here it is.
>
> On Thu, Jun 17, 2004 at 12:39:50AM +0200, Michael Levy wrote:
>
> > I really appreciate the initial response, and this more detailed follow-up!
> >
> > I copied your suggestion into test.cs, but I am afraid that I still get the
> > strange behaviour... I've attached a copy of test.cs just to make sure that I
> > haven't made another glaring silly...It still looks like memory corruption as
> > somethimes I enter the "loop" I described, others I get non-sensical
> > mime types (potentially non-printable characters) and other times I get a mime
> > type "g_free". I understand that there is a marshalling problem, but I'm afraid
> > I don't yet know what to do. I remain open to any and all suggestions ;)
> >
> > In case it's important:
> > $ rpm -q gtk-sharp
> > gtk-sharp-0.93-1.ximian.6.0
> > I'm using Mono Beta 2
> >
> > Thanks again,
> > Mike
> >
> >
> > On Wed, Jun 16, 2004 at 01:05:55PM -0400, Todd Berman wrote:
> >
> > > And as I sent this, I realized i should be more explicit. Here you go.
> > >
> > > instead of just calling:
> > >
> > > gnome_vfs_mime_type_from_name_or_default you need to use:
> > >
> > > [DllImport ("libgnomevfs-2")] extern static IntPtr 
> > > gnome_vfs_mime_type_from_name_or_default (string filename, string defaultv);
> > >
> > > string GetMimeType (string filename, string default)
> > > {
> > > 	return GLib.Marshaller.PtrToStringGFree 
> > > (gnome_vfs_mime_type_from_name_or_default (filename, default));
> > > }
> > >
> > > That should help you out.
> > >
> > > Note: GLib.Marshaller is in glib-sharp.dll, so you will have to compile 
> > > against it.
> > >
> > > Todd Berman wrote:
> > >
> > > > You are getting memory corruption because of the string marshalling.
> > > >
> > > > If you look at how gtk#, MD, etc do string marshalling (MD even has an 
> > > > example from gnome_vfs) you will see how to fix it.
> > > >
> > > > Basically marshalling the string like that is just not gonna work :)
> > > >
> > > > --Todd
> > > >
> > > > Michael Levy wrote:
> > > >
> > > >
> > > > > I would agree that it looks like memory corruption. Maybe I should try
> > > > > to send this to another list such as one of the mono lists?
> > > > >
> > > > > Mike
> > > > >
> > > > > On Wed, Jun 16, 2004 at 12:34:11AM -0500, Jon Trowbridge wrote:
> > > > >
> > > > >
> > > > > > On Sat, 2004-06-12 at 23:44 +0200, Michael Levy wrote:
> > > > > >
> > > > > >
> > > > > > > Unfortunately, I get some strange behaviour. I've written
> > > > > > > a small test to demonstrate.
> > > > > >
> > > > > >
> > > > > > I also get strange behavior, but it seems to be different strange
> > > > > > behavior.  I get weird behavior if I put more than one file on the
> > > > > > command line, or put something on the command line that ends with /.
> > > > > > Maybe some sort of memory corruption?
> > > > > >
> > > > > > -J
> > > > >
> > > > > _______________________________________________
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> >
> >
> > ------------------------------------------------------------------------
> >
> > using System;
> > using System.Runtime.InteropServices;
> >
> >
> > public class Test {
> >
> > 	[DllImport ("libgnomevfs-2")] extern static bool gnome_vfs_init ();
> > 	[DllImport ("libgnomevfs-2")] extern static IntPtr gnome_vfs_mime_type_from_name_or_default (string filename, string defaultv);
> >
> > 	static string GetMimeType (string filename, string def)
> > 	{
> > 		return GLib.Marshaller.PtrToStringGFree (gnome_vfs_mime_type_from_name_or_default (filename, def));
> > 	}
> >                                                                                
> >
> >
> > 	static int Main (String [] args)
> > 	{
> > 		gnome_vfs_init ();
> > 		foreach (String name in args) {
> > 			String mime =   GetMimeType (name, "DON'T KNOW");
> > 			Console.WriteLine ("{0}\t{1}", name, mime);
> > 		}
> > 		return 0;
> > 	}
> > }
> >
> >
> > // Compile with :
> > //     mcs test.cs `pkg-config --libs gtk-sharp`
> > //
> > // Run with (should work):
> > // mono test.exe test.cs 
> > // 
> > // Or to see "looping"
> > // mono test.exe noSuchFile1 noSuchFile2
> > //
> >
> >
> > ------------------------------------------------------------------------
> >
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