Struct s2n_quic_core::recovery::RttEstimator

pub struct RttEstimator { /* private fields */ }

Implementations

impl RttEstimator

pub fn new(initial_rtt: Duration) -> Self

Creates a new RTT Estimator with the given initial_rtt

on_max_ack_delay must be called when the max_ack_delay transport parameter is received to initialize the max_ack_delay value.

pub fn for_new_path(&self, initial_rtt: Duration) -> Self

Creates a new RTT Estimator with the max_ack_delay from the current instance

pub fn latest_rtt(&self) -> Duration

Gets the latest round trip time sample

pub fn smoothed_rtt(&self) -> Duration

Gets the weighted average round trip time

pub fn min_rtt(&self) -> Duration

Gets the minimum round trip time

pub fn rttvar(&self) -> Duration

Gets the variance in observed round trip time samples

pub fn first_rtt_sample(&self) -> Option<Timestamp>

Gets the timestamp of the first RTT sample

pub fn max_ack_delay(&self) -> Duration

Gets the max_ack_delay

pub fn pto_period(&self, pto_backoff: u32, space: PacketNumberSpace) -> Duration

pub fn on_max_ack_delay(&mut self, max_ack_delay: MaxAckDelay)

Sets the max_ack_delay value from the peer MaxAckDelay transport parameter

pub fn update_rtt( &mut self, ack_delay: Duration, rtt_sample: Duration, timestamp: Timestamp, is_handshake_confirmed: bool, space: PacketNumberSpace )

Updates the RTT estimate using the given rtt_sample

pub fn persistent_congestion_threshold(&self) -> Duration

Calculates the persistent congestion threshold used for determining if persistent congestion is being encountered.

pub fn loss_time_threshold(&self) -> Duration

pub fn on_persistent_congestion(&mut self)

Allows min_rtt and smoothed_rtt to be overwritten on the next RTT sample after persistent congestion is established.

Trait Implementations

impl Clone for RttEstimator

fn clone(&self) -> RttEstimator

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for RttEstimator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for RttEstimator

fn default() -> Self

Creates a new RTT Estimator with default initial values

impl Hash for RttEstimator

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for RttEstimator

fn eq(&self, other: &RttEstimator) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for RttEstimator

impl Eq for RttEstimator

impl StructuralEq for RttEstimator

impl StructuralPartialEq for RttEstimator