userprog: print atomic load/store values

diff --git a/userprog.c b/userprog.c
index 4b106d88c11e8f0829008b5d7c47dd626e093c05..bab9f982a614c209c37acd84a06f41ffe061b35b 100644 (file)
--- a/userprog.c
+++ b/userprog.c
@@ -6,15 +6,18 @@
 static void a(atomic_int *obj)
 {
        int i;
+       int ret;
 
        for (i = 0; i < 10; i++) {
                printf("Thread %d, loop %d\n", thrd_current(), i);
                switch (i % 4) {
                case 1:
-                       atomic_load(obj);
+                       ret = atomic_load(obj);
+                       printf("Read value: %d\n", ret);
                        break;
                case 3:
                        atomic_store(obj, i);
+                       printf("Write value: %d\n", i);
                        break;
                }
        }