Function rte_flow_conv_name

dpdk/lib/ethdev/rte_flow.c:1066–1094

* Retrieve the name of a pattern item/action type. * * @param is_action * Nonzero when @p src represents an action type instead of a pattern item * type. * @param is_ptr * Nonzero to write string address instead of contents into @p dst. * @param[out] dst * Destination buffer. Can be NULL if @p size is zero. * @param size * Size of @p dst in bytes. * @param[in] src * Dependi

 *   otherwise and rte_errno is set.
 */
static int
rte_flow_conv_name(int is_action,
		   int is_ptr,
		   char *dst,
		   const size_t size,
		   const void *src,
		   struct rte_flow_error *error)
{
	struct desc_info {
		const struct rte_flow_desc_data *data;
		size_t num;
	};
	static const struct desc_info info_rep[2] = {
		{ rte_flow_desc_item, RTE_DIM(rte_flow_desc_item), },
		{ rte_flow_desc_action, RTE_DIM(rte_flow_desc_action), },
	};
	const struct desc_info *const info = &info_rep[!!is_action];
	unsigned int type = (uintptr_t)src;

	if (type >= info->num)
		return rte_flow_error_set
			(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
			 "unknown object type to retrieve the name of");
	if (!is_ptr)
		return strlcpy(dst, info->data[type].name, size);
	if (size >= sizeof(const char **))
		*((const char **)dst) = info->data[type].name;
	return sizeof(const char **);
}

/** Helper function to convert flow API objects. */
int