Struct ErrorRateCounter 

pub struct ErrorRateCounter { /* private fields */ }

错误率计数器，基于滑动时间窗口统计错误率。

窗口外的样本会在下一次 record 调用时被驱逐， 保证 rate() 始终基于窗口内的最新样本计算。

Implementations

impl ErrorRateCounter

pub fn new(window: Duration) -> Self

pub fn record(&mut self, success: bool)

pub fn rate(&self) -> f64

pub fn total(&self) -> usize

pub fn errors(&self) -> usize

Trait Implementations

impl Debug for ErrorRateCounter

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

Formats the value using the given formatter.