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Add G_DEFINE_INTERFACE

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This is a macro similar to G_DEFINE_TYPE but it lets you define
interfaces rather than classes.

For discussion, see bug #320482
This commit is contained in:
Dan Winship
2009-12-01 10:33:12 +01:00
committed by Alexander Larsson
parent 74a970f754
commit 91d96350a7
3 changed files with 70 additions and 32 deletions
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30
gobject/tests/threadtests.c
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@@ -22,36 +22,6 @@
#include <glib.h>
#include <glib-object.h>
#define G_DEFINE_INTERFACE(TN, t_n, T_P) G_DEFINE_INTERFACE_WITH_CODE(TN, t_n, T_P, ;)
#define G_DEFINE_INTERFACE_WITH_CODE(TN, t_n, T_P, _C_) _G_DEFINE_INTERFACE_EXTENDED_BEGIN(TN, t_n, T_P) {_C_;} _G_DEFINE_INTERFACE_EXTENDED_END()
/* _default_init, ##Interface, if(TYPE_PREREQ); */
#define _G_DEFINE_INTERFACE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PREREQ) \
static void type_name##_default_init (TypeName##Interface *klass); \
GType \
type_name##_get_type (void) \
{ \
static volatile gsize g_define_type_id__volatile = 0; \
if (g_once_init_enter (&g_define_type_id__volatile)) \
{ \
GType g_define_type_id = \
g_type_register_static_simple (G_TYPE_INTERFACE, \
g_intern_static_string (#TypeName), \
sizeof (TypeName##Interface), \
(GClassInitFunc) type_name##_default_init, \
0, \
(GInstanceInitFunc) NULL, \
(GTypeFlags) 0); \
if (TYPE_PREREQ) \
g_type_interface_add_prerequisite (g_define_type_id, TYPE_PREREQ); \
{ /* custom code follows */
#define _G_DEFINE_INTERFACE_EXTENDED_END() \
/* following custom code */ \
} \
g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); \
} \
return g_define_type_id__volatile; \
} /* closes type_name##_get_type() */
static volatile int mtsafe_call_counter = 0; /* multi thread safe call counter */
static int unsafe_call_counter = 0; /* single-threaded call counter */