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Add g_type_default_interface_ref/peek/unref for accessing the default

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Mon Sep 29 10:51:01 2003  Owen Taylor  <otaylor@redhat.com>

        * gtype.[ch]: Add g_type_default_interface_ref/peek/unref
        for accessing the default vtable of an interface.
This commit is contained in:
Owen Taylor 2003-09-29 14:52:42 +00:00 committed by Owen Taylor
parent dc5ce54a5f
commit 2aa3d50768
3 changed files with 72 additions and 0 deletions
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5
gobject/ChangeLog
View File

@ -1,3 +1,8 @@
Mon Sep 29 10:51:01 2003 Owen Taylor <otaylor@redhat.com>
* gtype.[ch]: Add g_type_default_interface_ref/peek/unref
for accessing the default vtable of an interface.
Fri Sep 26 17:24:53 2003 Owen Taylor <otaylor@redhat.com>
* gtype.c (g_type_instance_get_private): You can

63
gobject/gtype.c
View File

@ -2486,6 +2486,69 @@ g_type_interface_peek_parent (gpointer g_iface)
return vtable;
}
gpointer
g_type_default_interface_ref (GType g_type)
{
TypeNode *node;
G_WRITE_LOCK (&type_rw_lock);
node = lookup_type_node_I (g_type);
if (!node || !NODE_IS_IFACE (node) ||
(node->data && node->data->common.ref_count < 1))
{
G_WRITE_UNLOCK (&type_rw_lock);
g_warning ("cannot retrieve default vtable for invalid or non-interface type '%s'",
type_descriptive_name_I (g_type));
return NULL;
}
type_data_ref_Wm (node);
type_iface_ensure_dflt_vtable_Wm (node);
G_WRITE_UNLOCK (&type_rw_lock);
return node->data->iface.dflt_vtable;
}
gpointer
g_type_default_interface_peek (GType g_type)
{
TypeNode *node;
gpointer vtable;
node = lookup_type_node_I (g_type);
G_READ_LOCK (&type_rw_lock);
if (node && NODE_IS_IFACE (node) && node->data && node->data->iface.dflt_vtable)
vtable = node->data->iface.dflt_vtable;
else
vtable = NULL;
G_READ_UNLOCK (&type_rw_lock);
return vtable;
}
void
g_type_default_interface_unref (gpointer g_iface)
{
TypeNode *node;
GTypeInterface *vtable = g_iface;
g_return_if_fail (g_iface != NULL);
node = lookup_type_node_I (vtable->g_type);
G_WRITE_LOCK (&type_rw_lock);
if (node && NODE_IS_IFACE (node) &&
node->data->iface.dflt_vtable == g_iface &&
node->data->common.ref_count > 0)
type_data_unref_Wm (node, FALSE);
else
g_warning ("cannot unreference invalid interface default vtable for '%s'",
type_descriptive_name_I (vtable->g_type));
G_WRITE_UNLOCK (&type_rw_lock);
}
G_CONST_RETURN gchar*
g_type_name (GType type)
{

4
gobject/gtype.h
View File

@ -183,6 +183,10 @@ gpointer g_type_interface_peek (gpointer instance_
GType iface_type);
gpointer g_type_interface_peek_parent (gpointer g_iface);
gpointer g_type_default_interface_ref (GType g_type);
gpointer g_type_default_interface_peek (GType g_type);
void g_type_default_interface_unref (gpointer g_iface);
/* g_free() the returned arrays */
GType* g_type_children (GType type,
guint *n_children);