+++ /dev/null
-#include <stdlib.h>
-#include <stdio.h>
-#include <threads.h>
-#include <stdatomic.h>
-
-#include "librace.h"
-#include "model-assert.h"
-
-atomic_int x;
-atomic_int y;
-atomic_intptr_t z;
-atomic_intptr_t z2;
-
-/**
- This example illustrates a self-satisfying cycle involving
- synchronization. A failed synchronization creates the store that
- causes the synchronization to fail.
-
- The C++11 memory model nominally allows t1=0, t2=1, t3=5.
-
- This example is insane, we don't support that behavior.
-*/
-
-
-static void a(void *obj)
-{
- atomic_store_explicit(&z, (intptr_t) &y, memory_order_relaxed);
- int t1=atomic_fetch_add_explicit(&y, 1, memory_order_release);
- atomic_store_explicit(&z, (intptr_t) &x, memory_order_relaxed);
- int t2=atomic_fetch_add_explicit(&y, 1, memory_order_release);
- printf("t1=%d, t2=%d\n", t1, t2);
-}
-
-
-static void b(void *obj)
-{
- int t3=atomic_fetch_add_explicit(&y, 1, memory_order_acquire);
- void *ptr = (void *)atomic_load_explicit(&z, memory_order_relaxed);
- atomic_store_explicit(&z2, (intptr_t)ptr, memory_order_relaxed);
- printf("t3=%d\n", t3);
-}
-
-static void c(void *obj)
-{
- void * ptr2=(void *) atomic_load_explicit(&z2, memory_order_relaxed);
- atomic_store_explicit((atomic_int *)ptr2, 5, memory_order_relaxed);
-}
-
-int user_main(int argc, char **argv)
-{
- thrd_t t1, t2, t3;
-
-
- atomic_init(&x, 0);
- atomic_init(&y, 0);
- atomic_init(&z, (intptr_t) &x);
- atomic_init(&z2, (intptr_t) &x);
-
- thrd_create(&t1, (thrd_start_t)&a, NULL);
- thrd_create(&t2, (thrd_start_t)&b, NULL);
- thrd_create(&t3, (thrd_start_t)&c, NULL);
-
- thrd_join(t1);
- thrd_join(t2);
- thrd_join(t3);
-
-
- return 0;
-}