Struct DecayCounter 

pub struct DecayCounter { /* private fields */ }

A time-decaying counter. Each event decays exponentially.

Implementations

impl DecayCounter

pub fn new(half_life_secs: f64) -> Self

pub fn record(&mut self, node: &str, value: f64, time_ns: u64)

Record an event from a node at a given time.

pub fn node_value(&mut self, node: &str, now_ns: u64) -> f64

Get the current decayed value for a node.

pub fn total(&mut self, now_ns: u64) -> f64

Get the total decayed value across all nodes.

pub fn half_life(&self) -> f64

Half-life in seconds.

pub fn lambda(&self) -> f64

Lambda (decay rate).

Trait Implementations

impl Clone for DecayCounter

fn clone(&self) -> DecayCounter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DecayCounter

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DecayCounter

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Merge for DecayCounter

fn merge(&mut self, other: &Self)

Merge another state into this one (in-place).

fn merged(&self, other: &Self) -> Self

where Self: Sized,

Create a merged copy without modifying self.

fn subsumes(&self, other: &Self) -> bool

where Self: PartialEq,

Check if this state subsumes (is greater than or equal to) another. In lattice terms: self ≥ other.

impl PartialEq for DecayCounter

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

Tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for DecayCounter

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.