1 files changed, 9 insertions, 0 deletions
diff --git a/include/u.h b/include/u.h
index 349a236..b7bd9ca 100644
--- a/include/u.h
+++ b/include/u.h
@@ -86,6 +86,15 @@ void* bufgrow(void*, vlong, vlong);
 void _bufpop(void*, int, vlong);
 
 // -----------------------------------------------------------------------------
+// Co-routines
+
+typedef struct coro coro;
+
+coro*   coro·new(uintptr stk, uintptr (*func)(coro* c, uintptr));
+uintptr coro·yield(coro* c, uintptr arg);
+error   coro·free(coro* c);
+
+// -----------------------------------------------------------------------------
 // Strings
 
 #include "str.h"