+
+/*
+ * A convenience macro for boxed type implementations, which defines a
+ * type_name_get_type() function registering the boxed type.
+ */
+#define EV_DEFINE_BOXED_TYPE(TypeName, type_name, copy_func, free_func) \
+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_boxed_type_register_static (g_intern_static_string (#TypeName), \
+ (GBoxedCopyFunc) copy_func, \
+ (GBoxedFreeFunc) free_func); \
+ g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); \
+ } \
+ return g_define_type_id__volatile; \
+}