Struct TemporalSensor 

pub struct TemporalSensor { /* private fields */ }

Rolling estimator over send/receive timing.

Implementations

impl TemporalSensor

pub fn new(window: usize) -> Self

Create a sensor whose OWD trend is computed over the last window samples (clamped to at least 2).

pub fn observe(&mut self, send_ts: u64, recv_ts: u64)

Record one observation. send_ts and recv_ts are microseconds; recv_ts uses the receiver’s clock, send_ts the sender’s. Only their differences are used, so a constant clock offset between the two is harmless.

pub fn jitter_micros(&self) -> f64

Current interarrival jitter (microseconds).

pub fn interarrival_micros(&self) -> f64

Mean interarrival spacing (microseconds).

pub fn owd_trend(&self) -> f64

Slope of OWD over the window: microseconds of delay added per microsecond of wall time. Positive means the queue is building (congestion-driven loss is coming); near zero is a steady link; negative means the queue is draining. Clock-offset-invariant.

pub fn skew(&self) -> f64

Estimated clock skew: the slope of the line lying BELOW all (recv_ts, owd) samples (Moon-Skelly-Towsley). The minimum OWD for each time is the queue-free path, whose drift is purely the relative clock rate; queueing only ever adds delay ABOVE that line. Computed from the lower convex hull of the window (the queue-free minimum points), whose least-squares slope is the skew. Same units as owd_trend.

pub fn owd_trend_debiased(&self) -> f64

OWD trend with the clock skew removed: owd_trend - skew. On a steady link a relative clock drift makes owd_trend read a false rising (or falling) trend; subtracting the skew leaves only genuine queue variation, so a steady-but-skewed link reads ~0.

pub fn samples(&self) -> usize

Number of OWD samples currently in the window.

Trait Implementations

impl Debug for TemporalSensor

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

Formats the value using the given formatter.

impl Default for TemporalSensor

fn default() -> Self

Returns the “default value” for a type.