tail = MAKE_POINTER(1, 0);
next = MAKE_POINTER(0, 0); // (NULL, 0)
- atomic_init(&q->nodes[0].next, 0); // assumed inititalized in original example
-
atomic_store(&q->head, head);
atomic_store(&q->tail, tail);
atomic_store(&q->nodes[1].next, next);
next = atomic_load(&q->nodes[get_ptr(tail)].next);
if (tail == atomic_load(&q->tail)) {
if (get_ptr(next) == 0) { // == NULL
- pointer val = MAKE_POINTER(node, get_count(next) + 1);
+ pointer value = MAKE_POINTER(node, get_count(next) + 1);
success = atomic_compare_exchange_weak(&q->nodes[get_ptr(tail)].next,
- &next,
- val);
+ &next, value);
}
if (!success) {
unsigned int ptr = get_ptr(atomic_load(&q->nodes[get_ptr(tail)].next));
- pointer val = MAKE_POINTER(ptr,
+ pointer value = MAKE_POINTER(ptr,
get_count(tail) + 1);
atomic_compare_exchange_strong(&q->tail,
- &tail,
- val);
+ &tail, value);
thrd_yield();
}
}
if (get_ptr(next) == 0) { // NULL
return 0; // NULL
}
- atomic_compare_exchange_weak(&q->tail,
+ atomic_compare_exchange_strong(&q->tail,
&tail,
MAKE_POINTER(get_ptr(next), get_count(tail) + 1));
thrd_yield();