add support for datarace detection...

[model-checker.git] / userprog.c

diff --git a/userprog.c b/userprog.c
index ba0c867fd195c86b08cee679468f9a93624736a1..33319b1ce873c891b4bce429790196280b3acc12 100644 (file)
--- a/userprog.c
+++ b/userprog.c
@@ -1,23 +1,28 @@
 #include <stdio.h>
+#include <stdlib.h>
 
 #include "libthreads.h"
 #include "libatomic.h"
+#include "librace.h"
 
 static void a(atomic_int *obj)
 {
        int i;
        int ret;
 
-       for (i = 0; i < 10; i++) {
+       store_32(&i, 10);
+       printf("load 32 yields: %d\n", load_32(&i));
+
+       for (i = 0; i < 2; i++) {
                printf("Thread %d, loop %d\n", thrd_current(), i);
-               switch (i % 4) {
+               switch (i % 2) {
                case 1:
                        ret = atomic_load(obj);
                        printf("Read value: %d\n", ret);
                        break;
-               case 3:
-                       atomic_store(obj, i);
-                       printf("Write value: %d\n", i);
+               case 0:
+                       atomic_store(obj, i + 1);
+                       printf("Write value: %d\n", i + 1);
                        break;
                }
        }
@@ -26,15 +31,18 @@ static void a(atomic_int *obj)
 void user_main()
 {
        thrd_t t1, t2;
-       atomic_int obj;
+       atomic_int *obj;
+
+       obj = malloc(sizeof(*obj));
 
-       atomic_init(&obj, 0);
+       atomic_init(obj, 0);
 
        printf("Thread %d: creating 2 threads\n", thrd_current());
-       thrd_create(&t1, (thrd_start_t)&a, &obj);
-       thrd_create(&t2, (thrd_start_t)&a, &obj);
+       thrd_create(&t1, (thrd_start_t)&a, obj);
+       thrd_create(&t2, (thrd_start_t)&a, obj);
 
        thrd_join(t1);
        thrd_join(t2);
+       free(obj);
        printf("Thread %d is finished\n", thrd_current());
 }