gstreamer/sources/generated/Gst/GstSharp.IteratorItemFunctionNative.cs

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2018-01-29 18:56:49 +00:00
// 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 int IteratorItemFunctionNative(IntPtr it, IntPtr item);
internal class IteratorItemFunctionInvoker {
IteratorItemFunctionNative native_cb;
IntPtr __data;
GLib.DestroyNotify __notify;
~IteratorItemFunctionInvoker ()
{
if (__notify == null)
return;
__notify (__data);
}
internal IteratorItemFunctionInvoker (IteratorItemFunctionNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
internal IteratorItemFunctionInvoker (IteratorItemFunctionNative native_cb, IntPtr data) : this (native_cb, data, null) {}
internal IteratorItemFunctionInvoker (IteratorItemFunctionNative native_cb, IntPtr data, GLib.DestroyNotify notify)
{
this.native_cb = native_cb;
__data = data;
__notify = notify;
}
internal Gst.IteratorItemFunction Handler {
get {
return new Gst.IteratorItemFunction(InvokeNative);
}
}
Gst.IteratorItem InvokeNative (Gst.Iterator it, GLib.Value item)
{
IntPtr native_item = GLib.Marshaller.StructureToPtrAlloc (item);
Gst.IteratorItem __result = (Gst.IteratorItem) native_cb (it == null ? IntPtr.Zero : it.Handle, native_item);
Marshal.FreeHGlobal (native_item);
return __result;
}
}
internal class IteratorItemFunctionWrapper {
public int NativeCallback (IntPtr it, IntPtr item)
{
try {
Gst.IteratorItem __ret = managed (it == IntPtr.Zero ? null : (Gst.Iterator) GLib.Opaque.GetOpaque (it, typeof (Gst.Iterator), false), (GLib.Value) Marshal.PtrToStructure (item, typeof (GLib.Value)));
if (release_on_call)
gch.Free ();
return (int) __ret;
} catch (Exception e) {
GLib.ExceptionManager.RaiseUnhandledException (e, true);
// NOTREACHED: Above call does not return.
throw e;
}
}
bool release_on_call = false;
GCHandle gch;
public void PersistUntilCalled ()
{
release_on_call = true;
gch = GCHandle.Alloc (this);
}
internal IteratorItemFunctionNative NativeDelegate;
Gst.IteratorItemFunction managed;
public IteratorItemFunctionWrapper (Gst.IteratorItemFunction managed)
{
this.managed = managed;
if (managed != null)
NativeDelegate = new IteratorItemFunctionNative (NativeCallback);
}
public static Gst.IteratorItemFunction GetManagedDelegate (IteratorItemFunctionNative native)
{
if (native == null)
return null;
IteratorItemFunctionWrapper wrapper = (IteratorItemFunctionWrapper) native.Target;
if (wrapper == null)
return null;
return wrapper.managed;
}
}
#endregion
}