Add EOS_DEFINE_ENUM_TYPE macro

A simple macro that allows you to define a GEnum type.

If we start getting a ton of enumeration types, then we should consider
adding the various autotooling hooks for generating them through the
glib-mkenums script.

1 files changed, 21 insertions, 0 deletions

diff --git a/endless/eosmacros.h b/endless/eosmacros.h
index 7d85c15..1dfa786 100644
--- a/endless/eosmacros.h
+++ b/endless/eosmacros.h
@@ -9,4 +9,25 @@
 
 /* Shared preprocessor macros */
 
+#define EOS_ENUM_VALUE(value, nick)     { value, #value, #nick },
+
+#define EOS_DEFINE_ENUM_TYPE(EnumType, enum_type, values) \
+GType \
+enum_type##_get_type (void) \
+{ \
+  static volatile gsize g_define_type_id__volatile = 0; \
+  if (g_once_init_enter (&g_define_type_id__volatile)) \
+    { \
+      static const GEnumValue v[] = { \
+        values \
+        { 0, NULL, NULL }, \
+      }; \
+      GType g_define_type_id = \
+        g_enum_register_static (g_intern_static_string (#EnumType), v); \
+\
+      g_once_init_leave (&g_define_type_id__volatile, g_define_type_id); \
+    } \
+  return g_define_type_id__volatile; \
+}
+
 #endif /* EOS_MACROS_H */