Add example from java showing legit satisfaction cycle

[cdsspec-compiler.git] / test / rmwprog.c

diff --git a/test/rmwprog.c b/test/rmwprog.c
index 5911e5a3cdd870820a1af60509bbbfbc1dea0868..ebace1ec262966d5d367afefd5dbaaddef168a26 100644 (file)
--- a/test/rmwprog.c
+++ b/test/rmwprog.c
@@ -1,21 +1,28 @@
+#include <stdlib.h>
 #include <stdio.h>
-
 #include <threads.h>
+#include <stdatomic.h>
+
 #include "librace.h"
-#include "stdatomic.h"
+#include "model-assert.h"
 
 atomic_int x;
+static int N = 2;
 
 static void a(void *obj)
 {
-       atomic_fetch_add_explicit(&x, 1, memory_order_relaxed);
-       atomic_fetch_add_explicit(&x, 1, memory_order_relaxed);
+       int i;
+       for (i = 0; i < N; i++)
+               atomic_fetch_add_explicit(&x, 1, memory_order_relaxed);
 }
 
 int user_main(int argc, char **argv)
 {
        thrd_t t1, t2;
 
+       if (argc > 1)
+               N = atoi(argv[1]);
+
        atomic_init(&x, 0);
        thrd_create(&t1, (thrd_start_t)&a, NULL);
        thrd_create(&t2, (thrd_start_t)&a, NULL);
@@ -23,5 +30,7 @@ int user_main(int argc, char **argv)
        thrd_join(t1);
        thrd_join(t2);
 
+       MODEL_ASSERT(atomic_load(&x) == N * 2);
+
        return 0;
 }