2004-01-29 Mike Kestner <mkestner@ximian.com>

* glib/time_t_CustomMarshaler.cs : new custom marshaler form time_t.
	* glue/time_t.c : glue for time_t.
	* glue/Makefile.am : add time_t.c
	* glue/makefile.win32 : ditto

svn path=/trunk/gtk-sharp/; revision=22595

ChangeLog

@@ -1,3 +1,10 @@
+2004-01-29  Mike Kestner  <mkestner@ximian.com>
+
+	* glib/time_t_CustomMarshaler.cs : new custom marshaler form time_t.
+	* glue/time_t.c : glue for time_t.
+	* glue/Makefile.am : add time_t.c
+	* glue/makefile.win32 : ditto
+
 2004-01-28  John Luke  <jluke@cfl.rr.com>
 
 	* glade/XML.custom : some null checking for crash prevention.

glib/time_t_CustomMarshaler.cs

@@ -0,0 +1,70 @@
+// time_t_CustomMarshaler.cs - Custom marshaling between time_t and DateTime
+//
+// Author: Mike Kestner <mkestner@ximian.com>
+//
+// Copyright (c) 2004 Novell, Inc.
+
+namespace GLib {
+
+	using System;
+	using System.Runtime.InteropServices;
+
+	public class time_t_CustomMarshaler : ICustomMarshaler {
+
+		static time_t_CustomMarshaler marshaler;
+		int utc_offset;
+		DateTime local_epoch;
+
+		private time_t_CustomMarshaler () 
+		{
+			utc_offset = DateTime.Now.Subtract (DateTime.UtcNow).Seconds;
+			local_epoch = new DateTime (1970, 1, 1, 0, 0, 0);
+		}
+
+		public static ICustomMarshaler GetInstance (string cookie)
+		{
+			if (marshaler == null)
+				marshaler = new time_t_CustomMarshaler ();
+
+			return marshaler;
+		}
+
+		[DllImport ("gtksharpglue")]
+		static extern int gtksharp_time_t_sizeof ();
+
+		[DllImport ("gtksharpglue")]
+		static extern void gtksharp_time_t_print (int time_t);
+
+		public IntPtr MarshalManagedToNative (object obj)
+		{
+			DateTime dt = (DateTime) obj;
+			int size = Marshal.SizeOf (typeof (int)) + gtksharp_time_t_sizeof ();
+			IntPtr ptr = Marshal.AllocCoTaskMem (size);
+			IntPtr time_t_ptr = new IntPtr (ptr.ToInt32 () + Marshal.SizeOf (typeof(int)));
+
+			int secs = dt.Subtract (local_epoch).Seconds + utc_offset;
+			Console.WriteLine ("Marshaling DateTime: " + dt);
+			Marshal.WriteInt32 (time_t_ptr, secs);
+			gtksharp_time_t_print (secs);
+			return time_t_ptr;
+		}
+
+		public void CleanUpNativeData (IntPtr data)
+		{
+			IntPtr ptr = new IntPtr (data.ToInt32 () - Marshal.SizeOf (typeof (int)));
+			Marshal.FreeCoTaskMem (ptr);
+		}
+
+		public object MarshalNativeToManaged (IntPtr data)
+		{
+			throw new NotImplementedException ();
+		}
+
+		public void CleanUpManagedData (object obj) {}
+
+		public int GetNativeDataSize ()
+		{
+			throw new NotImplementedException ();
+		}
+	}
+}

glue/Makefile.am

@@ -20,6 +20,7 @@ BASESOURCES = 			\
 	selectiondata.c		\
 	slist.c			\
 	style.c			\
+	time_t.c		\
 	type.c			\
 	value.c			\
 	valuearray.c		\

glue/makefile.win32

@@ -22,6 +22,7 @@ GLUE_OBJS = \
         selectiondata.o         \
         slist.o                 \
         style.o                 \
+        time_t.o                \
         type.o                  \
         value.o                 \
         valuearray.o            \

glue/time_t.c

@@ -0,0 +1,26 @@
+/* time_t.c : Glue to allocate time_t.
+ *
+ * Author: Mike Kestner <mkestner@ximian.com>
+ *
+ * Copyright <c> 2004 Novell, Inc.
+ */
+
+#include <glib.h>
+#include <time.h>
+#include <stdio.h>
+
+/* Forward declarations */
+gint gtksharp_time_t_sizeof (void);
+void gtksharp_time_t_print (time_t t);
+
+gint
+gtksharp_time_t_sizeof ()
+{
+	return sizeof (time_t);
+}
+
+void
+gtksharp_time_t_print (time_t t)
+{
+	printf ("%s\n", ctime (&t));
+}