#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:
- atomic_load(obj);
+ ret = atomic_load(obj);
+ printf("Read value: %d\n", ret);
break;
- case 3:
- atomic_store(obj, i);
+ case 0:
+ atomic_store(obj, i + 1);
+ printf("Write value: %d\n", i + 1);
break;
}
}
void user_main()
{
thrd_t t1, t2;
- atomic_int obj;
+ atomic_int *obj;
+
+ obj = malloc(sizeof(*obj));
+
+ atomic_init(obj, 0);
- printf("Creating 2 threads\n");
- thrd_create(&t1, (thrd_start_t)&a, &obj);
- thrd_create(&t2, (thrd_start_t)&a, &obj);
+ 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_join(t1);
thrd_join(t2);
- printf("Thread is finished\n");
+ free(obj);
+ printf("Thread %d is finished\n", thrd_current());
}