Update

subprojects/gstreamer-sharp/sources/generated/Gst/GstSharp.IteratorFoldFunctionNative.cs

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+// This file was generated by the Gtk# code generator.
+// Any changes made will be lost if regenerated.
+
+namespace GstSharp {
+
+	using System;
+	using System.Runtime.InteropServices;
+
+#region Autogenerated code
+	[UnmanagedFunctionPointer (CallingConvention.Cdecl)]
+	internal delegate bool IteratorFoldFunctionNative(IntPtr item, IntPtr _ret, IntPtr user_data);
+
+	internal class IteratorFoldFunctionInvoker {
+
+		IteratorFoldFunctionNative native_cb;
+		IntPtr __data;
+		GLib.DestroyNotify __notify;
+
+		~IteratorFoldFunctionInvoker ()
+		{
+			if (__notify == null)
+				return;
+			__notify (__data);
+		}
+
+		internal IteratorFoldFunctionInvoker (IteratorFoldFunctionNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
+
+		internal IteratorFoldFunctionInvoker (IteratorFoldFunctionNative native_cb, IntPtr data) : this (native_cb, data, null) {}
+
+		internal IteratorFoldFunctionInvoker (IteratorFoldFunctionNative native_cb, IntPtr data, GLib.DestroyNotify notify)
+		{
+			this.native_cb = native_cb;
+			__data = data;
+			__notify = notify;
+		}
+
+		internal Gst.IteratorFoldFunction Handler {
+			get {
+				return new Gst.IteratorFoldFunction(InvokeNative);
+			}
+		}
+
+		bool InvokeNative (GLib.Value item, GLib.Value _ret)
+		{
+			IntPtr native_item = GLib.Marshaller.StructureToPtrAlloc (item);
+			IntPtr native__ret = GLib.Marshaller.StructureToPtrAlloc (_ret);
+			bool __result = native_cb (native_item, native__ret, __data);
+			Marshal.FreeHGlobal (native_item);
+			Marshal.FreeHGlobal (native__ret);
+			return __result;
+		}
+	}
+
+	internal class IteratorFoldFunctionWrapper {
+
+		public bool NativeCallback (IntPtr item, IntPtr _ret, IntPtr user_data)
+		{
+			try {
+				bool __ret = managed ((GLib.Value) Marshal.PtrToStructure (item, typeof (GLib.Value)), (GLib.Value) Marshal.PtrToStructure (_ret, typeof (GLib.Value)));
+				if (release_on_call)
+					gch.Free ();
+				return __ret;
+			} catch (Exception e) {
+				GLib.ExceptionManager.RaiseUnhandledException (e, false);
+				return false;
+			}
+		}
+
+		bool release_on_call = false;
+		GCHandle gch;
+
+		public void PersistUntilCalled ()
+		{
+			release_on_call = true;
+			gch = GCHandle.Alloc (this);
+		}
+
+		internal IteratorFoldFunctionNative NativeDelegate;
+		Gst.IteratorFoldFunction managed;
+
+		public IteratorFoldFunctionWrapper (Gst.IteratorFoldFunction managed)
+		{
+			this.managed = managed;
+			if (managed != null)
+				NativeDelegate = new IteratorFoldFunctionNative (NativeCallback);
+		}
+
+		public static Gst.IteratorFoldFunction GetManagedDelegate (IteratorFoldFunctionNative native)
+		{
+			if (native == null)
+				return null;
+			IteratorFoldFunctionWrapper wrapper = (IteratorFoldFunctionWrapper) native.Target;
+			if (wrapper == null)
+				return null;
+			return wrapper.managed;
+		}
+	}
+#endregion
+}