efl: add eina_cow helper macro.

SVN revision: 83025

diff --git a/src/lib/eina/eina_cow.h b/src/lib/eina/eina_cow.h
index 3d5138e96f49788d625cf5693d9472885ab65012..14414aaf7214695e4ca4dae9cde18876f827bb51 100644 (file)
--- a/src/lib/eina/eina_cow.h
+++ b/src/lib/eina/eina_cow.h
@@ -39,4 +39,16 @@ EAPI void eina_cow_memcpy(Eina_Cow *cow,
 
 EAPI Eina_Bool eina_cow_gc(Eina_Cow *cow);
 
+#define EINA_COW_WRITE_BEGIN(Cow, Read, Write_Type, Write)             \
+  do                                                                   \
+    {                                                                  \
+      Write_Type *Write;                                               \
+                                                                       \
+      Write = eina_cow_write(Cow, ((const Eina_Cow_Data**)&(Read)));
+
+#define EINA_COW_WRITE_END(Cow, Read, Write)                           \
+      eina_cow_done(Cow, ((const Eina_Cow_Data**)&(Read)), Write);     \
+    }                                                                  \
+  while (0);
+
 #endif