Based on utf8_check.c by Markus Kuhn, 2005 https://www.cl.cam.ac.uk/~mgk25/ucs/utf8_check.c Optimized for predominantly 7-bit content by Alex Hultman,

* Allocates a fresh unused token from the token pool. */

* Do an overflow check for all elements in every pool. * * @see memp_overflow_check_element for a description of the check */

* Bring an interface up, available for processing * traffic. * * @note: Enabling DHCP on a down interface will make it come * up once configured.

* Helper function for search_path */

* Chain two pbufs (or pbuf chains) together. * * The caller MUST call pbuf_free(t) once it has stopped * using it. Use pbuf_cat() instead if you n

* Remove an RAW PCB. * * @param pcb RAW PCB to be removed. The PCB is removed from the list of * RAW PCB's and the data structure is freed from mem

The receive routine called by the interrupt handler

* Helper function for search_path */

Send or buffer a WebSocket frame, compressed or not. Returns BACKPRESSURE on increased user space backpressure, * DROPPED on dropped message (due

* Calcluates the effective send mss that can be used for a specific IP address * by using ip_route to determin the netif used to send to the address

* Used to specify the function that should be called when a fatal error * has occured on the connection. * * @param pcb tcp_pcb to set the err call

* Insert segment into the list (segments covered with new one will be deleted) * * Called from tcp_receive() */

* Called by tcp_close() to send a segment including flags but not data. * * @param pcb the tcp_pcb over which to send a segment * @param flags the

Send an ACK without data. * * @param pcb Protocol control block for the TCP connection to send the ACK */

* Update the state that tracks the available window space to advertise. * * Returns how much extra window would be advertised if we sent an * updat

* Connect an UDP PCB. * * This will associate the UDP PCB with the remote address. * * @param pcb UDP PCB to be connected with remote address ipad

* Update (or insert) a IP/MAC address pair in the ARP cache. * * If a pending entry is resolved, any queued packets will be sent * at this point.

The loop has 2 fallthrough polls */

Returns any of listen socket, socket, shut down socket or callback */

Note: This will set timeout to 0 */

! \brief Calculates a clock divider (\e CD) and a fractional part (\e FP) for * the USART asynchronous modes to generate a baud rate as close

! \brief Calculates a clock divider (\e CD) and a fractional part (\e FP) for * the USART asynchronous modes to generate a baud rate as close

Runs in UV loop to notify CF thread */

get a file pointer to a file in read-only and close-on-exec mode */