Function acl_dup_node

dpdk/lib/acl/acl_bld.c:390–434

* Duplicate a node */

 * Duplicate a node
 */
static struct rte_acl_node *
acl_dup_node(struct acl_build_context *context, struct rte_acl_node *node)
{
	uint32_t n;
	struct rte_acl_node *next;

	next = acl_alloc_node(context, node->level);

	/* allocate the pointers */
	if (node->num_ptrs > 0) {
		next->ptrs = acl_build_alloc(context,
			node->max_ptrs,
			sizeof(struct rte_acl_ptr_set));
		next->max_ptrs = node->max_ptrs;
	}

	/* copy over the pointers */
	for (n = 0; n < node->num_ptrs; n++) {
		if (node->ptrs[n].ptr != NULL) {
			next->ptrs[n].ptr = node->ptrs[n].ptr;
			next->ptrs[n].ptr->ref_count++;
			acl_include(&next->ptrs[n].values,
				&node->ptrs[n].values, -1);
		}
	}

	next->num_ptrs = node->num_ptrs;

	/* copy over node's match results */
	if (node->match_flag == 0)
		next->match_flag = 0;
	else {
		next->match_flag = -1;
		next->mrt = acl_build_alloc(context, 1, sizeof(*next->mrt));
		memcpy(next->mrt, node->mrt, sizeof(*next->mrt));
	}

	/* copy over node's bitset */
	acl_include(&next->values, &node->values, -1);

	node->next = next;
	next->prev = node;

	return next;
}

/*
 * Dereference a pointer from a node