Struct SlaMonitor 

pub struct SlaMonitor { /* private fields */ }

SLA monitor, aggregates latency and error statistics by operation name, and generates SlaReport.

Uses RwLock<HashMap> internally for thread safety; observe provides interior mutability via &self, so it can be called concurrently from multiple threads via Arc<SlaMonitor>.

Implementations

impl SlaMonitor

pub fn new(slo_target: f64) -> SlaMonitor

pub fn observe(&self, operation: &str, duration: Duration, success: bool)

记录一次操作观测：延迟与成功/失败。

使用 &self 而非 &mut self，以便通过 Arc<SlaMonitor> 在多线程 中并发写入（与项目现有 SzTracer::end_span 模式一致）。

pub fn report(&self, operation: &str) -> Option<SlaReport>

pub fn operations(&self) -> Vec<String>