static inline void recvfrom_newudpdata(FAR struct uip_driver_s *dev,
FAR struct recvfrom_s *pstate)
{
/* Take as much data from the packet as we can */
(void)recvfrom_newdata(dev, pstate);
/* Indicate no data in the buffer */
dev->d_len = 0;
}
static inline void recvfrom_newtcpdata(FAR struct uip_driver_s *dev,
FAR struct recvfrom_s *pstate)
{
/* Take as much data from the packet as we can */
size_t recvlen = recvfrom_newdata(dev, pstate);
/* If there is more data left in the packet that we could not buffer, than
* add it to the read-ahead buffers.
*/
if (recvlen < dev->d_len)
{
#if CONFIG_NET_NTCP_READAHEAD_BUFFERS > 0
FAR struct uip_conn *conn = (FAR struct uip_conn *)pstate->rf_sock->s_conn;
FAR uint8_t *buffer = (FAR uint8_t *)dev->d_appdata + recvlen;
uint16_t buflen = dev->d_len - recvlen;
#ifdef CONFIG_DEBUG_NET
uint16_t nsaved;
nsaved = uip_datahandler(conn, buffer, buflen);
#else
(void)uip_datahandler(conn, buffer, buflen);
#endif
/* There are complicated buffering issues that are not addressed fully
* here. For example, what if up_datahandler() cannot buffer the
* remainder of the packet? In that case, the data will be dropped but
* still ACKed. Therefore it would not be resent.
*
* This is probably not an issue here because we only get here if the
* read-ahead buffers are empty and there would have to be something
* serioulsy wrong with the configuration not to be able to buffer a
* partial packet in this context.
*/
#ifdef CONFIG_DEBUG_NET
if (nsaved < buflen)
{
ndbg("ERROR: packet data not saved (%d bytes)\n", buflen - nsaved);
}
#endif
#else
ndbg("ERROR: packet data lost (%d bytes)\n", dev->d_len - recvlen);
#endif
}
/* Indicate no data in the buffer */
dev->d_len = 0;
}