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// GLib.DestroyNotify.cs - internal DestroyNotify helper
//
// Author: Mike Kestner <mkestner@novell.com>
//
// Copyright (c) 2005 Novell, Inc.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the Lesser GNU General
// Public License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
namespace Gst.GLib {
using System;
using System.Runtime.InteropServices;
[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
public delegate void DestroyNotify (IntPtr data);
public class DestroyHelper {
private DestroyHelper () {}
static void ReleaseGCHandle (IntPtr data)
{
if (data == IntPtr.Zero)
return;
GCHandle gch = (GCHandle) data;
gch.Free ();
}
static DestroyNotify release_gchandle;
public static DestroyNotify NotifyHandler {
get {
if (release_gchandle == null)
release_gchandle = new DestroyNotify (ReleaseGCHandle);
return release_gchandle;
}
}
}
}
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