#include <stdio.h>
#include "libthreads.h"
-#include "libatomic.h"
+#include "librace.h"
+#include "stdatomic.h"
-static void a(atomic_int *obj)
+atomic_int x;
+atomic_int y;
+
+static void a(void *obj)
{
- int i;
+ int r1=atomic_load_explicit(&y, memory_order_relaxed);
+ atomic_store_explicit(&x, r1, memory_order_relaxed);
+ printf("r1=%u\n",r1);
+}
- for (i = 0; i < 10; i++) {
- printf("Thread %d, loop %d\n", thread_current()->index, i);
- if (i % 2)
- atomic_load(obj);
- }
+static void b(void *obj)
+{
+ int r2=atomic_load_explicit(&x, memory_order_relaxed);
+ atomic_store_explicit(&y, 42, memory_order_relaxed);
+ printf("r2=%u\n",r2);
}
void user_main()
{
- struct thread t1, t2;
- atomic_int obj;
+ thrd_t t1, t2;
+
+ atomic_init(&x, 0);
+ atomic_init(&y, 0);
- printf("%s() creating 2 threads\n", __func__);
- thread_create(&t1, &a, &obj);
- thread_create(&t2, &a, &obj);
+ printf("Thread %d: creating 2 threads\n", thrd_current());
+ thrd_create(&t1, (thrd_start_t)&a, NULL);
+ thrd_create(&t2, (thrd_start_t)&b, NULL);
- thread_join(&t1);
- thread_join(&t2);
- printf("%s() is finished\n", __func__);
+ thrd_join(t1);
+ thrd_join(t2);
+ printf("Thread %d is finished\n", thrd_current());
}