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Add macros and symbols for private data on dynamic types

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We need a TypeName_private_offset variable defined by the macros used to
register dynamic types. We also need to call the adjust_private_offset()
function inside class_init(). G_ADD_PRIVATE_DYNAMIC only sets the size
of the private data structure, and relies on the behaviour of the
g_type_class_adjuset_private_offset() function to register the private
data structure at class init time if passed a value greater than zero.

This allows using G_PRIVATE_OFFSET with dynamic types.
This commit is contained in:
Emmanuele Bassi 2013-07-26 16:45:48 +01:00 committed by Matthias Clasen
parent d2bb019533
commit ca6b93d093
1 changed files with 12 additions and 3 deletions
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15
gobject/gtypemodule.h
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@ -180,11 +180,16 @@ static void type_name##_class_init (TypeName##Class *klass); \
static void type_name##_class_finalize (TypeName##Class *klass); \
static gpointer type_name##_parent_class = NULL; \
static GType type_name##_type_id = 0; \
static void type_name##_class_intern_init (gpointer klass) \
static gint TypeName##_private_offset; \
\
_G_DEFINE_TYPE_EXTENDED_CLASS_INIT(TypeName, type_name) \
\
static inline gpointer \
type_name##_get_instance_private (TypeName *self) \
{ \
type_name##_parent_class = g_type_class_peek_parent (klass); \
type_name##_class_init ((TypeName##Class*) klass); \
return (G_STRUCT_MEMBER_P (self, TypeName##_private_offset)); \
} \
\
GType \
type_name##_get_type (void) \
{ \
@ -237,6 +242,10 @@ type_name##_register_type (GTypeModule *type_module) \
g_type_module_add_interface (type_module, g_define_type_id, TYPE_IFACE, &g_implement_interface_info); \
}
#define G_ADD_PRIVATE_DYNAMIC(TypeName) { \
TypeName##_private_offset = sizeof (TypeNamePrivate); \
}
GLIB_AVAILABLE_IN_ALL
GType g_type_module_get_type (void) G_GNUC_CONST;
GLIB_AVAILABLE_IN_ALL