Function riot_sys::sock_udp_sendv_aux

pub unsafe extern "C" fn sock_udp_sendv_aux(
    sock: *mut sock_udp_t,
    snips: *const iolist_t,
    remote: *const sock_udp_ep_t,
    aux: *mut sock_udp_aux_tx_t
) -> ssize_t

@brief Sends a UDP message to remote end point with non-continous payload

@pre ((sock != NULL || remote != NULL))

@param[in] sock A UDP sock object. May be NULL. A sensible local end point should be selected by the implementation in that case. @param[in] snips List of payload chunks, will be processed in order. May be NULL. @param[in] remote Remote end point for the sent data. May be NULL, if @p sock has a remote end point. sock_udp_ep_t::family may be AF_UNSPEC, if local end point of @p sock provides this information. sock_udp_ep_t::port may not be 0. @param[out] aux Auxiliary data about the transmission. May be NULL, if it is not required by the application.

@return The number of bytes sent on success. @return -EADDRINUSE, if sock has no local end-point or was NULL and the pool of available ephemeral ports is depleted. @return -EAFNOSUPPORT, if remote != NULL and sock_udp_ep_t::family of @p remote is != AF_UNSPEC and not supported. @return -EHOSTUNREACH, if @p remote or remote end point of @p sock is not reachable. @return -EINVAL, if sock_udp_ep_t::addr of @p remote is an invalid address. @return -EINVAL, if sock_udp_ep_t::netif of @p remote is not a valid interface or contradicts the given local interface (i.e. neither the local end point of sock nor remote are assigned to SOCK_ADDR_ANY_NETIF but are nevertheless different. @return -EINVAL, if sock_udp_ep_t::port of @p remote is 0. @return -ENOMEM, if no memory was available to send @p data. @return -ENOTCONN, if remote == NULL, but @p sock has no remote end point.