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2003-07-23 Mike Kestner <mkestner@ximian.com>

Browse source 
[Equal credit to Ettore Perazzoli <ettore@ximian.com> for fixing
	all the bugs in the initial patch]
	* */*.custom : fix incorrect usage of new Object (IntPtr) where
	Glib.Object.GetObject should've been used.  add ref_owned param
	to GetObject calls.
	* generator/CallbackGen.cs : setup ref_owned in bodies
	* generator/ClassBase.cs : add ref_owned to GetObject FromNative call
	* generator/Method.cs : setup ref_owned in bodies
	* generator/Property.cs : setup ref_owned in bodies
	* generator/SignalHandler.cs : pass ref_owned to GetObject
	* generator/StructBase.cs : setup ref_owned in bodies
	* glib/Object.cs : kill Ref/Unref methods.  Don't want it to be
	easy for users to screw with ref counts, or make it look like they
	should need to.
	(GetObject): add ref_owned param and ref/unref to remain at 1
	* glib/Value.cs : pass ref_owned to GetObject

svn path=/trunk/gtk-sharp/; revision=16581
This commit is contained in:
Mike Kestner 2003-07-23 17:19:21 +00:00
parent 9d369d8cf9
commit 23464e6514
24 changed files with 107 additions and 100 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

19
ChangeLog
View file

@ -1,3 +1,22 @@
2003-07-23 Mike Kestner <mkestner@ximian.com>
[Equal credit to Ettore Perazzoli <ettore@ximian.com> for fixing
all the bugs in the initial patch]
* */*.custom : fix incorrect usage of new Object (IntPtr) where
Glib.Object.GetObject should've been used. add ref_owned param
to GetObject calls.
* generator/CallbackGen.cs : setup ref_owned in bodies
* generator/ClassBase.cs : add ref_owned to GetObject FromNative call
* generator/Method.cs : setup ref_owned in bodies
* generator/Property.cs : setup ref_owned in bodies
* generator/SignalHandler.cs : pass ref_owned to GetObject
* generator/StructBase.cs : setup ref_owned in bodies
* glib/Object.cs : kill Ref/Unref methods. Don't want it to be
easy for users to screw with ref counts, or make it look like they
should need to.
(GetObject): add ref_owned param and ref/unref to remain at 1
* glib/Value.cs : pass ref_owned to GetObject
2003-07-23 Martin Willemoes Hansen <mwh@sysrq.dk>
* generator/ClassBase.cs: Fixed printouts of ctor validation.

13
gdk/Pixbuf.custom
View file

@ -33,18 +33,13 @@
Raw = LoadFromStream (s);
}
// scale_simple, composite_color_simple, and addalpha do a gdk_pixbuf_new on the
// return first, and we also ref it
// in the GetObject. So get rid of one extra reference.
[DllImport("gdk_pixbuf-2.0")]
static extern IntPtr gdk_pixbuf_scale_simple(IntPtr raw, int dest_width, int dest_height, int interp_type);
public Gdk.Pixbuf ScaleSimple(int dest_width, int dest_height, Gdk.InterpType interp_type) {
IntPtr raw_ret = gdk_pixbuf_scale_simple(Handle, dest_width, dest_height, (int) interp_type);
Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret);
ret.Unref ();
Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret, true);
return ret;
}
@ -53,8 +48,7 @@
public Gdk.Pixbuf CompositeColorSimple(int dest_width, int dest_height, Gdk.InterpType interp_type, int overall_alpha, int check_size, uint color1, uint color2) {
IntPtr raw_ret = gdk_pixbuf_composite_color_simple(Handle, dest_width, dest_height, (int) interp_type, overall_alpha, check_size, color1, color2);
Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret);
ret.Unref ();
Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret, true);
return ret;
}
@ -63,8 +57,7 @@
public Gdk.Pixbuf AddAlpha(bool substitute_color, byte r, byte g, byte b) {
IntPtr raw_ret = gdk_pixbuf_add_alpha(Handle, substitute_color, r, g, b);
Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret);
ret.Unref ();
Gdk.Pixbuf ret = (Gdk.Pixbuf) GLib.Object.GetObject(raw_ret, true);
return ret;
}

5
generator/CallbackGen.cs
View file

@ -127,6 +127,7 @@ namespace GtkSharp.Generation {
sw.WriteLine ("\t\t\tobject[] _args = new object[{0}];", count);
int idx = 0;
bool need_sep = false;
bool need_ref_owned = true;
string call_str = "";
for (int i = 0; i < count; i++)
{
@ -142,6 +143,10 @@ namespace GtkSharp.Generation {
string cstype = parms[i].CSType;
// FIXME: Too much code copy/pasted here. Refactor?
ClassBase parm_wrapper = table.GetClassGen (ctype);
if (need_ref_owned && parm_wrapper != null && ((parm_wrapper is ObjectGen) || (parm_wrapper is InterfaceGen))) {
need_ref_owned = false;
sw.WriteLine("\t\t\tbool ref_owned = false;");
}
sw.WriteLine("\t\t\t_args[" + idx + "] = " + table.FromNative (ctype, parm_name) + ";");
if ((parm_wrapper != null && ((parm_wrapper is OpaqueGen))) || table.IsManuallyWrapped (ctype)) {
sw.WriteLine("\t\t\tif (_args[" + idx + "] == null)");

2
generator/ClassBase.cs
View file

@ -134,7 +134,7 @@ namespace GtkSharp.Generation {
public virtual String FromNative(String var)
{
return "(" + QualifiedName + ") GLib.Object.GetObject(" + var + ")";
return "(" + QualifiedName + ") GLib.Object.GetObject(" + var + ", ref_owned)";
}
public virtual String FromNativeReturn(String var)

6
generator/Method.cs
View file

@ -391,9 +391,9 @@ namespace GtkSharp.Generation {
if (table.IsObject (rettype) || table.IsOpaque (rettype))
{
sw.WriteLine(m_ret + " raw_ret = " + cname + call + ";");
if (table.IsObject (rettype))
sw.WriteLine(indent + "\t\t\tbool ref_owned = false;");
sw.WriteLine(indent +"\t\t\t" + s_ret + " ret = " + table.FromNativeReturn(rettype, "raw_ret") + ";");
if (needs_ref)
sw.WriteLine(indent + "\t\t\tret.Ref ();");
if (table.IsOpaque (rettype))
sw.WriteLine(indent + "\t\t\tif (ret == null) ret = new " + s_ret + "(raw_ret);");
}
@ -403,6 +403,8 @@ namespace GtkSharp.Generation {
string raw_parms = "raw_ret";
if (element_type != null)
raw_parms += ", typeof (" + element_type + ")";
if (table.IsInterface (rettype))
sw.WriteLine(indent + "\t\t\tbool ref_owned = false;");
sw.WriteLine(s_ret + " ret = " + table.FromNativeReturn(rettype, raw_parms) + ";");
}
}

2
generator/Property.cs
View file

@ -123,6 +123,8 @@ namespace GtkSharp.Generation {
sw.WriteLine("\t\t\t\tGetProperty(" + cname + ", val);");
if (table.IsObject (c_type) || table.IsOpaque (c_type) || table.IsBoxed (c_type)) {
sw.WriteLine("\t\t\t\tSystem.IntPtr raw_ret = (System.IntPtr) {0} val;", v_type);
if (table.IsObject (c_type))
sw.WriteLine ("\t\t\t\tbool ref_owned = false;");
sw.WriteLine("\t\t\t\t" + cs_type + " ret = " + table.FromNativeReturn(c_type, "raw_ret") + ";");
if (!table.IsBoxed (c_type))
sw.WriteLine("\t\t\t\tif (ret == null) ret = new " + cs_type + "(raw_ret);");

2
generator/SignalHandler.cs
View file

@ -140,7 +140,7 @@ namespace GtkSharp.Generation {
sw.WriteLine("\t\t\t\targs.Args[{0}] = null;", idx - 1);
sw.WriteLine("\t\t\telse {");
if (wrapper != null && wrapper is ObjectGen)
sw.WriteLine("\t\t\t\targs.Args[" + (idx-1) + "] = GLib.Object.GetObject(arg" + idx + ");");
sw.WriteLine("\t\t\t\targs.Args[" + (idx-1) + "] = GLib.Object.GetObject(arg" + idx + ", true);");
else
sw.WriteLine("\t\t\t\targs.Args[" + (idx-1) + "] = " + table.FromNative (ctype, "arg" + idx) + ";");
if ((wrapper != null && (wrapper is OpaqueGen)) || table.IsManuallyWrapped (ctype)) {

2
generator/StructBase.cs
View file

@ -163,8 +163,8 @@ namespace GtkSharp.Generation {
sw.WriteLine ();
sw.WriteLine ("\t\tpublic " + wrapped + " " + wrapped_name + " {");
sw.WriteLine ("\t\t\tget { ");
sw.WriteLine ("\t\t\t\tbool ref_owned = false;");
sw.WriteLine ("\t\t\t\t" + wrapped + " ret = " + table.FromNativeReturn(c_type, name) + ";");
sw.WriteLine ("\t\t\t\tret.Ref ();");
sw.WriteLine ("\t\t\t\treturn ret;");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t\tset { " + name + " = " + table.CallByName (c_type, "value") + "; }");

6
glade/XML.custom
View file

@ -56,7 +56,7 @@
static public Glade.XML GetWidgetTree (Gtk.Widget w) {
IntPtr ret_raw = glade_get_widget_tree (w.Handle);
Glade.XML ret = GLib.Object.GetObject (ret_raw) as Glade.XML;
Glade.XML ret = GLib.Object.GetObject (ret_raw, false) as Glade.XML;
return ret;
}
@ -165,13 +165,13 @@
string signal_name, string signal_data,
IntPtr connect_object_ptr, int after, IntPtr user_data) {
GLib.Object objekt = GLib.Object.GetObject (objekt_ptr);
GLib.Object objekt = GLib.Object.GetObject (objekt_ptr, false);
/* if an connect_object_ptr is provided, use that as handler */
object connect_object =
connect_object_ptr == IntPtr.Zero
? handler_object
: GLib.Object.GetObject (connect_object_ptr);
: GLib.Object.GetObject (connect_object_ptr, false);
/* search for the event to connect */
System.Reflection.MemberInfo[] evnts = objekt.GetType ().

2
glib/ListBase.cs
View file

@ -145,7 +145,7 @@ namespace GLib {
ret = Activator.CreateInstance (list.element_type, new object[] {data});
}
else if (Object.IsObject (data))
ret = GLib.Object.GetObject (data);
ret = GLib.Object.GetObject (data, true);
return ret;
}

103
glib/Object.cs
View file

@ -1,9 +1,8 @@
// Object.cs - GObject class wrapper implementation
//
// Authors: Bob Smith <bob@thestuff.net>
// Mike Kestner <mkestner@speakeasy.net>
// Authors: Mike Kestner <mkestner@speakeasy.net>
//
// (c) 2001 Bob Smith and Mike Kestner
// (c) 2001-2003 Mike Kestner
//
// TODO:
// Could remove `disposed' for a check if an object is on the dispose_queue_list.
@ -34,7 +33,6 @@ namespace GLib {
// Private class and instance members
IntPtr _obj;
protected bool needs_ref = true;
EventHandlerList _events;
bool disposed = false;
Hashtable data;
@ -50,6 +48,9 @@ namespace GLib {
Dispose ();
}
[DllImport("libgobject-2.0-0.dll")]
static extern void g_object_unref (IntPtr raw);
static bool PerformQueuedUnrefs ()
{
Object [] objects;
@ -66,7 +67,7 @@ namespace GLib {
if (o._obj == IntPtr.Zero)
continue;
o.Unref ();
g_object_unref (o._obj);
o._obj = IntPtr.Zero;
}
return false;
@ -101,49 +102,9 @@ namespace GLib {
GC.SuppressFinalize (this);
}
[DllImport("libgobject-2.0-0.dll")]
static extern void g_object_unref (IntPtr raw);
[DllImport("libgobject-2.0-0.dll")]
static extern void g_object_ref (IntPtr raw);
/// <summary>
/// Ref Method
/// </summary>
///
/// <remarks>
/// Increases the reference count on the native object.
/// This method is used by generated classes and structs,
/// and should not be used in user code.
/// </remarks>
public virtual void Ref ()
{
if (_obj == IntPtr.Zero)
return;
g_object_ref (_obj);
}
/// <summary>
/// Unref Method
/// </summary>
///
/// <remarks>
/// Decreases the reference count on the native object.
/// This method is used by generated classes and structs,
/// and should not be used in user code.
///
/// This method should not be invoked by a thread.
/// </remarks>
public virtual void Unref ()
{
if (_obj == IntPtr.Zero)
return;
g_object_unref (_obj);
}
/// <summary>
/// GetObject Shared Method
/// </summary>
@ -160,24 +121,40 @@ namespace GLib {
/// The wrapper instance.
/// </returns>
public static Object GetObject(IntPtr o)
public static Object GetObject(IntPtr o, bool owned_ref)
{
WeakReference obj = Objects[o] as WeakReference;
if (obj != null) {
// If the target object has not been collected, use it...
if (obj.IsAlive)
return obj.Target as GLib.Object;
// ... otherwise we create a new wrapper around the IntPtr.
Objects [o] = null;
Object obj;
WeakReference weak_ref = Objects[o] as WeakReference;
if (weak_ref != null && weak_ref.IsAlive) {
obj = weak_ref.Target as GLib.Object;
if (owned_ref)
g_object_unref (obj._obj);
return obj;
}
return GtkSharp.ObjectManager.CreateObject(o);
obj = GtkSharp.ObjectManager.CreateObject(o);
if (obj == null)
return null;
if (!owned_ref)
g_object_ref (obj.Handle);
Objects [o] = new WeakReference (obj);
return obj;
}
[DllImport("gtksharpglue")]
static extern uint gtksharp_register_type (string name, uint parent_type);
/// <summary>
/// RegisterGType Shared Method
/// </summary>
///
/// <remarks>
/// Shared method to register types with the GType system.
/// This method should be called from the class constructor
/// of subclasses.
/// </remarks>
public static GLib.Type RegisterGType (System.Type t)
{
System.Type parent = t.BaseType;
@ -200,9 +177,7 @@ namespace GLib {
/// Dummy constructor needed for derived classes.
/// </remarks>
public Object () {
needs_ref = false;
}
protected Object () {}
/// <summary>
/// Object Constructor
@ -220,7 +195,15 @@ namespace GLib {
[DllImport("libgobject-2.0-0.dll")]
static extern IntPtr g_object_new (uint gtype, IntPtr dummy);
public Object (GLib.Type gtype)
/// <summary>
/// Object Constructor
/// </summary>
///
/// <remarks>
/// Creates an object from a specified GType.
/// </remarks>
protected Object (GLib.Type gtype)
{
Raw = g_object_new (gtype.Value, IntPtr.Zero);
}
@ -241,8 +224,6 @@ namespace GLib {
return _obj;
}
set {
if (needs_ref)
g_object_ref (value);
Objects [value] = new WeakReference (this);
_obj = value;
}

2
glib/Value.cs
View file

@ -475,7 +475,7 @@ namespace GLib {
{
// FIXME: Insert an appropriate exception here if
// _val.type indicates an error.
return GLib.Object.GetObject(g_value_get_object (val._val));
return GLib.Object.GetObject(g_value_get_object (val._val), true);
}
/// <summary>

6
gnome/CanvasItem.custom
View file

@ -12,13 +12,17 @@
[DllImport("gnomecanvas-2")]
static extern System.IntPtr gnome_canvas_item_new (IntPtr group, uint type, IntPtr null_terminator);
[DllImport("libgobject-2.0-0.dll")]
static extern void g_object_ref (IntPtr raw);
public CanvasItem (Gnome.CanvasGroup group, uint type)
: base (gnome_canvas_item_new (group.Handle, type, IntPtr.Zero))
{
g_object_ref (Handle);
}
[DllImport("gtksharpglue")]
static extern IntPtr gtksharp_gnome_canvas_item_get_canvas (IntPtr i);
public Canvas Canvas {
get { return new Gnome.Canvas (gtksharp_gnome_canvas_item_get_canvas (this.Handle)); }
get { return GLib.Object.GetObject (gtksharp_gnome_canvas_item_get_canvas (this.Handle), false) as Canvas; }
}

4
gtk/Combo.custom
View file

@ -11,7 +11,7 @@ static extern IntPtr gtksharp_combo_get_entry(IntPtr i);
public Gtk.Entry Entry {
get {
return new Gtk.Entry (gtksharp_combo_get_entry(this.Handle));
return GLib.Object.GetObject (gtksharp_combo_get_entry(this.Handle), false) as Gtk.Entry;
}
}
@ -20,6 +20,6 @@ static extern IntPtr gtksharp_combo_get_button(IntPtr i);
public Gtk.Button Button {
get {
return new Gtk.Button (gtksharp_combo_get_button(this.Handle));
return GLib.Object.GetObject (gtksharp_combo_get_button(this.Handle), false) as Gtk.Button;
}
}

4
gtk/Dialog.custom
View file

@ -20,12 +20,12 @@ public Dialog (string title, Gtk.Window parent, Gtk.DialogFlags flags) : base()
[DllImport("gtksharpglue")]
static extern IntPtr gtksharp_dialog_get_vbox (IntPtr i);
public Gtk.VBox VBox {
get { return new Gtk.VBox (gtksharp_dialog_get_vbox (this.Handle)); }
get { return GLib.Object.GetObject (gtksharp_dialog_get_vbox (this.Handle), false) as VBox; }
}
[DllImport("gtksharpglue")]
static extern IntPtr gtksharp_dialog_get_action_area (IntPtr i);
public Gtk.VBox ActionArea {
get { return new Gtk.VBox (gtksharp_dialog_get_action_area (this.Handle)); }
get { return GLib.Object.GetObject (gtksharp_dialog_get_action_area (this.Handle), false) as VBox; }
}

2
gtk/GtkSharp.GtkClipboardClearFuncNative.cs
View file

@ -11,7 +11,7 @@ namespace GtkSharp {
{
if (RemoveIfNotAlive ()) return;
object[] _args = new object[2];
_args[0] = (Gtk.Clipboard) GLib.Object.GetObject(clipboard);
_args[0] = (Gtk.Clipboard) GLib.Object.GetObject(clipboard, false);
if (_args[0] == null)
_args[0] = new Gtk.Clipboard(clipboard);
_args[1] = Gtk.Clipboard.clipboard_objects[objid];

2
gtk/GtkSharp.GtkClipboardGetFuncNative.cs
View file

@ -11,7 +11,7 @@ namespace GtkSharp {
{
if (RemoveIfNotAlive ()) return;
object[] _args = new object[4];
_args[0] = (Gtk.Clipboard) GLib.Object.GetObject(clipboard);
_args[0] = (Gtk.Clipboard) GLib.Object.GetObject(clipboard, false);
if (_args[0] == null)
_args[0] = new Gtk.Clipboard(clipboard);
_args[1] = selection_data;

3
gtk/Layout.custom
View file

@ -17,8 +17,7 @@ public Gdk.Window BinWindow {
IntPtr raw = gtksharp_gtk_layout_get_bin_window (Handle);
if (raw != (IntPtr) 0) {
Gdk.Window ret = (Gdk.Window) GLib.Object.GetObject (raw);
ret.Ref ();
Gdk.Window ret = (Gdk.Window) GLib.Object.GetObject (raw, false);
return ret;
}

7
gtk/Object.custom
View file

@ -9,14 +9,17 @@
[DllImport("gtksharpglue")]
private static extern bool gtksharp_object_is_floating (IntPtr raw);
[DllImport("libgobject-2.0-0.dll")]
private static extern void g_object_ref (IntPtr raw);
protected override IntPtr Raw {
get {
return base.Raw;
}
set {
base.Raw = value;
if (!needs_ref && gtksharp_object_is_floating (value)) {
Ref ();
if (gtksharp_object_is_floating (value)) {
g_object_ref (value);
Sink ();
}
// System.Diagnostics.Debug.WriteLine ("Gtk.Object:set_Raw: object type is: " + (this as GLib.Object).GType.Name + " refcount now: " + RefCount + " needs_ref: " + needs_ref);

4
gtk/Paned.custom
View file

@ -12,12 +12,12 @@
static extern IntPtr gtksharp_paned_get_child1 (IntPtr i);
public Gtk.Widget Child1 {
get { return new Widget (gtksharp_paned_get_child1 (this.Handle)); }
get { return GLib.Object.GetObject (gtksharp_paned_get_child1 (this.Handle), false) as Widget; }
}
[DllImport ("gtksharpglue")]
static extern IntPtr gtksharp_paned_get_child2 (IntPtr i);
public Gtk.Widget Child2 {
get { return new Widget (gtksharp_paned_get_child2 (this.Handle)); }
get { return GLib.Object.GetObject (gtksharp_paned_get_child2 (this.Handle), false) as Widget; }
}

2
gtk/Style.custom
View file

@ -12,7 +12,7 @@
static Gdk.GC EnsureGC (IntPtr raw) {
if (raw == IntPtr.Zero)
return null;
Gdk.GC ret = (Gdk.GC) GLib.Object.GetObject (raw);
Gdk.GC ret = (Gdk.GC) GLib.Object.GetObject (raw, false);
if (ret == null)
ret = new Gdk.GC (raw);
return ret;

2
gtk/TreeSelection.custom
View file

@ -17,6 +17,6 @@
IntPtr handle = (IntPtr) 0;
bool raw_ret = gtk_tree_selection_get_selected(Handle, out handle, ref iter);
bool ret = raw_ret;
model = (Gtk.TreeModel)GLib.Object.GetObject (handle);
model = (Gtk.TreeModel)GLib.Object.GetObject (handle, false);
return ret;
}

2
gtk/TreeView.custom
View file

@ -22,7 +22,7 @@
public Gtk.TreeModel Model {
get {
IntPtr raw_ret = gtk_tree_view_get_model (Handle);
Gtk.TreeModel ret = (Gtk.TreeModel) GLib.Object.GetObject (raw_ret);
Gtk.TreeModel ret = (Gtk.TreeModel) GLib.Object.GetObject (raw_ret, false);
return ret;
}

3
gtk/Widget.custom
View file

@ -23,8 +23,7 @@ public Gdk.Window GdkWindow {
IntPtr raw_ret = gtksharp_gtk_widget_get_window (Handle);
if (raw_ret != (IntPtr) 0){
Gdk.Window ret = (Gdk.Window) GLib.Object.GetObject(raw_ret);
ret.Ref ();
Gdk.Window ret = (Gdk.Window) GLib.Object.GetObject(raw_ret, false);
return ret;
}
return null;