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

   1 // This file was generated by the Gtk# code generator.
   2 // Any changes made will be lost if regenerated.
   3
   4 namespace GstSharp {
   5
   6         using System;
   7         using System.Runtime.InteropServices;
   8
   9 #region Autogenerated code
  10         [UnmanagedFunctionPointer (CallingConvention.Cdecl)]
  11         internal delegate void TagForeachFuncNative(IntPtr list, IntPtr tag, IntPtr user_data);
  12
  13         internal class TagForeachFuncInvoker {
  14
  15                 TagForeachFuncNative native_cb;
  16                 IntPtr __data;
  17                 GLib.DestroyNotify __notify;
  18
  19                 ~TagForeachFuncInvoker ()
  20                 {
  21                         if (__notify == null)
  22                                 return;
  23                         __notify (__data);
  24                 }
  25
  26                 internal TagForeachFuncInvoker (TagForeachFuncNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
  27
  28                 internal TagForeachFuncInvoker (TagForeachFuncNative native_cb, IntPtr data) : this (native_cb, data, null) {}
  29
  30                 internal TagForeachFuncInvoker (TagForeachFuncNative native_cb, IntPtr data, GLib.DestroyNotify notify)
  31                 {
  32                         this.native_cb = native_cb;
  33                         __data = data;
  34                         __notify = notify;
  35                 }
  36
  37                 internal Gst.TagForeachFunc Handler {
  38                         get {
  39                                 return new Gst.TagForeachFunc(InvokeNative);
  40                         }
  41                 }
  42
  43                 void InvokeNative (Gst.TagList list, string tag)
  44                 {
  45                         IntPtr native_tag = GLib.Marshaller.StringToPtrGStrdup (tag);
  46                         native_cb (list == null ? IntPtr.Zero : list.Handle, native_tag, __data);
  47                         GLib.Marshaller.Free (native_tag);
  48                 }
  49         }
  50
  51         internal class TagForeachFuncWrapper {
  52
  53                 public void NativeCallback (IntPtr list, IntPtr tag, IntPtr user_data)
  54                 {
  55                         try {
  56                                 managed (list == IntPtr.Zero ? null : (Gst.TagList) GLib.Opaque.GetOpaque (list, typeof (Gst.TagList), false), GLib.Marshaller.Utf8PtrToString (tag));
  57                                 if (release_on_call)
  58                                         gch.Free ();
  59                         } catch (Exception e) {
  60                                 GLib.ExceptionManager.RaiseUnhandledException (e, false);
  61                         }
  62                 }
  63
  64                 bool release_on_call = false;
  65                 GCHandle gch;
  66
  67                 public void PersistUntilCalled ()
  68                 {
  69                         release_on_call = true;
  70                         gch = GCHandle.Alloc (this);
  71                 }
  72
  73                 internal TagForeachFuncNative NativeDelegate;
  74                 Gst.TagForeachFunc managed;
  75
  76                 public TagForeachFuncWrapper (Gst.TagForeachFunc managed)
  77                 {
  78                         this.managed = managed;
  79                         if (managed != null)
  80                                 NativeDelegate = new TagForeachFuncNative (NativeCallback);
  81                 }
  82
  83                 public static Gst.TagForeachFunc GetManagedDelegate (TagForeachFuncNative native)
  84                 {
  85                         if (native == null)
  86                                 return null;
  87                         TagForeachFuncWrapper wrapper = (TagForeachFuncWrapper) native.Target;
  88                         if (wrapper == null)
  89                                 return null;
  90                         return wrapper.managed;
  91                 }
  92         }
  93 #endregion
  94 }