compare if lhs is less than rhs, taking wrapping into account. if lhs is close to UINT_MAX and rhs is close to 0, lhs is assumed to have wrapped and c

this should be called every time we change mtu_floor or mtu_ceiling

Close the UTP socket. It is not valid for the upper layer to refer to socket after it is closed. Data will keep to try being delivered after the close

returns the max number of bytes of payload the uTP connection is allowed to send

@payload: number of bytes to send @flags: either ST_DATA, or ST_FIN @iovec: base address of iovec array @num_iovecs: number of iovecs in array

Calculates the current receive window

Called by utp_process_icmp_fragmentation() and utp_process_icmp_error() below

Process an incoming packet syn is true if this is the first packet received. It will cut off parsing as soon as the header is done

returns: 0: the packet was acked. 1: it means that the packet had already been acked 2: the packet has not been sent yet

count the number of bytes that were acked by the EACK header

Should be called every 500ms

Try to connect to a specified host.

Add a new element to the hash table. Returns a pointer to the new element. This assumes the element is not already present!

Delete an element from the utp_hash_t Returns a pointer to the already deleted element.