mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 08:17:01 +00:00
52 lines
1.4 KiB
C#
52 lines
1.4 KiB
C#
// 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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|