test: added prime sieve test of coroutines

1 files changed, 11 insertions, 4 deletions

diff --git a/src/coro.c b/src/coro.c
index 82ef4f4..af0a359 100644
--- a/src/coro.c
+++ b/src/coro.c
@@ -1,11 +1,20 @@
 #include <u.h>
 
 // -----------------------------------------------------------------------
-//  Assembly routines.
+// Assembly routines
 
 extern void    _newcoro(coro *co, uintptr (*func)(coro*, uintptr), void *stk);
 extern uintptr _coroyield(coro *co, uintptr arg);
 
+// -----------------------------------------------------------------------
+// Globals
+
+// static thread_local coro *CONTEXT;
+
+// -----------------------------------------------------------------------
+// C interface
+
+/* Co-routine context */
 struct coro 
 {
     void*   sp;
@@ -17,9 +26,7 @@ struct coro
 coro*
 coro·new(uintptr stk, uintptr (*func)(coro*, uintptr))
 {
-    if (!func) 
-        return nil;
-
+    if (!func) return nil;
     if (stk == 0) stk = 8192;
 
     byte *block = malloc(stk);