This C library is meant to be used to calculate the RTO (retransmission
timeout) according to the method described in
RFC 6298. The API is made up of just
three function, whose usage is pretty much self-explanatory: call
rfc6298_reset_rto before measuring RTT (round trip) times, then pass them to
rfc6298_update_rto to recalculate the RTO value, and finally retrieve the RTO
value with rfc6298_get_rto. Multiple measurement can sent over at any time,
and make the calculated RTO more accurate. All times are defined in
milliseconds.
Given that one second is measured as 1000 milliseconds, this code contains several division operations to normalise pseudo-fixed-point calculations and therefore might not be suitable for embedded targets. A potential improvement would be to assume that a second is made up of 1024 milliseconds instead to use right shift operations rather than plain arithmetic divisions. However, given that RTT times can be smaller than 24 milliseconds this might end up lowering precision down to unacceptable values.
This library is licensed under the MIT licence, whose text can be found in the LICENCE file in the repository.
Copyright (C) 2016 Alessandro Gatti