subprojects/gstreamer-sharp/sources/generated/Gst/GstSharp.TaskFunctionNative.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 TaskFunctionNative(IntPtr user_data);
  12
  13         internal class TaskFunctionInvoker {
  14
  15                 TaskFunctionNative native_cb;
  16                 IntPtr __data;
  17                 GLib.DestroyNotify __notify;
  18
  19                 ~TaskFunctionInvoker ()
  20                 {
  21                         if (__notify == null)
  22                                 return;
  23                         __notify (__data);
  24                 }
  25
  26                 internal TaskFunctionInvoker (TaskFunctionNative native_cb) : this (native_cb, IntPtr.Zero, null) {}
  27
  28                 internal TaskFunctionInvoker (TaskFunctionNative native_cb, IntPtr data) : this (native_cb, data, null) {}
  29
  30                 internal TaskFunctionInvoker (TaskFunctionNative 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.TaskFunction Handler {
  38                         get {
  39                                 return new Gst.TaskFunction(InvokeNative);
  40                         }
  41                 }
  42
  43                 void InvokeNative ()
  44                 {
  45                         native_cb (__data);
  46                 }
  47         }
  48
  49         internal class TaskFunctionWrapper {
  50
  51                 public void NativeCallback (IntPtr user_data)
  52                 {
  53                         try {
  54                                 managed ();
  55                                 if (release_on_call)
  56                                         gch.Free ();
  57                         } catch (Exception e) {
  58                                 GLib.ExceptionManager.RaiseUnhandledException (e, false);
  59                         }
  60                 }
  61
  62                 bool release_on_call = false;
  63                 GCHandle gch;
  64
  65                 public void PersistUntilCalled ()
  66                 {
  67                         release_on_call = true;
  68                         gch = GCHandle.Alloc (this);
  69                 }
  70
  71                 internal TaskFunctionNative NativeDelegate;
  72                 Gst.TaskFunction managed;
  73
  74                 public TaskFunctionWrapper (Gst.TaskFunction managed)
  75                 {
  76                         this.managed = managed;
  77                         if (managed != null)
  78                                 NativeDelegate = new TaskFunctionNative (NativeCallback);
  79                 }
  80
  81                 public static Gst.TaskFunction GetManagedDelegate (TaskFunctionNative native)
  82                 {
  83                         if (native == null)
  84                                 return null;
  85                         TaskFunctionWrapper wrapper = (TaskFunctionWrapper) native.Target;
  86                         if (wrapper == null)
  87                                 return null;
  88                         return wrapper.managed;
  89                 }
  90         }
  91 #endregion
  92 }