Add write_barrier docs

b20121f9 · Jun Hiroe · a18c5756 · b20121f9
Commit b20121f9 authored Aug 05, 2014 by Jun Hiroe
Show whitespace changes
Inline Side-by-side

Showing with 4 additions and 3 deletions

src/gc.c src/gc.c +4 -3

No files found.
--- a/src/gc.c
+++ b/src/gc.c
@@ -65,10 +65,11 @@
  mruby implementer and C extension library writer must write a write
  barrier when writing a pointer to an object on object's field.
-  Two different write barrier are available:
+  When writing a pointer to B object on A object's field, 
+  two different write barrier are available:
-    * mrb_field_write_barrier
+    * mrb_field_write_barrier - target B object for a mark.
-    * mrb_write_barrier
+    * mrb_write_barrier       - target A object for a mark.
  == Generational Mode