0e7c9a7143
When in congestion avoidance state and when acknowledging an <acked> number bytes we must increase the congestion window by at most one datagram (<path->mtu>) by congestion window. So thanks to this patch we apply a ratio to the current number of acked bytes : <acked> * <path->mtu> / <cwnd>. So, when <cwnd> bytes are acked we precisely increment <cwnd> by <path->mtu>. Furthermore we take into an account the number of remaining acknowledged bytes each time we increment the window by <acked> storing their values in the algorithm struct state (->remain_acked) so that it might be take into an account at the next ACK event.