Struct RollingCounter 

pub struct RollingCounter { /* private fields */ }

A counter that tracks events in a fixed time window using a ring buffer.

rate() returns events per second observed within the window.

Implementations

impl RollingCounter

pub fn new(window_secs: f64) -> Self

Create a new rolling counter with the specified window in seconds.

pub fn record(&mut self, delta: u64)

Record that delta events have occurred right now.

pub fn increment(&mut self)

Increment by 1.

pub fn rate(&self) -> f64

Compute the event rate (events per second) within the rolling window.

pub fn total(&self) -> u64

Total events ever recorded (not windowed).

pub fn window_count(&self) -> u64

Events within the current window.

pub fn reset(&mut self)

Reset the counter.