--- Coro/Coro/State.xs	2007/01/05 18:25:51	1.135
+++ Coro/Coro/State.xs	2007/01/12 01:05:55	1.136
@@ -114,6 +114,7 @@
 # define UNLOCK (void)0
 #endif
 
+/* helper storage struct for Coro::AIO */
 struct io_state
 {
   int errorno;