Пример #1
0
void *thr_enqueuer(void *_count)
{
    unsigned long long *count = _count;

    printf_verbose("thread_begin %s, tid %lu\n",
                   "enqueuer", urcu_get_thread_id());

    set_affinity();

    rcu_register_thread();

    while (!test_go)
    {
    }
    cmm_smp_mb();

    for (;;) {
        struct test *node = malloc(sizeof(*node));
        if (!node)
            goto fail;
        cds_lfq_node_init_rcu(&node->list);
        rcu_read_lock();
        cds_lfq_enqueue_rcu(&q, &node->list);
        rcu_read_unlock();
        URCU_TLS(nr_successful_enqueues)++;

        if (caa_unlikely(wdelay))
            loop_sleep(wdelay);
fail:
        URCU_TLS(nr_enqueues)++;
        if (caa_unlikely(!test_duration_enqueue()))
            break;
    }

    rcu_unregister_thread();

    count[0] = URCU_TLS(nr_enqueues);
    count[1] = URCU_TLS(nr_successful_enqueues);
    printf_verbose("enqueuer thread_end, tid %lu, "
                   "enqueues %llu successful_enqueues %llu\n",
                   urcu_get_thread_id(),
                   URCU_TLS(nr_enqueues),
                   URCU_TLS(nr_successful_enqueues));
    return ((void*)1);

}
Пример #2
0
int main(int argc, char **argv)
{
	int values[] = { -5, 42, 36, 24, };
	struct cds_lfq_queue_rcu myqueue;	/* Queue */
	unsigned int i;
	int ret = 0;

	/*
	 * Each thread need using RCU read-side need to be explicitly
	 * registered.
	 */
	urcu_memb_register_thread();

	cds_lfq_init_rcu(&myqueue, urcu_memb_call_rcu);

	/*
	 * Enqueue nodes.
	 */
	for (i = 0; i < CAA_ARRAY_SIZE(values); i++) {
		struct mynode *node;

		node = malloc(sizeof(*node));
		if (!node) {
			ret = -1;
			goto end;
		}

		cds_lfq_node_init_rcu(&node->node);
		node->value = values[i];
		/*
		 * Both enqueue and dequeue need to be called within RCU
		 * read-side critical section.
		 */
		urcu_memb_read_lock();
		cds_lfq_enqueue_rcu(&myqueue, &node->node);
		urcu_memb_read_unlock();
	}

end:
	urcu_memb_unregister_thread();
	return ret;
}