Struct MetricsRegistry 

pub struct MetricsRegistry { /* private fields */ }

Thread-safe registry for creating and updating metrics.

All operations are guarded by an internal Mutex, making the registry safe to share across threads via Arc<MetricsRegistry>.

Implementations

impl MetricsRegistry

pub fn new() -> Self

Create a new empty registry.

pub fn shared() -> Arc<Self>

Create a registry wrapped in an Arc for sharing.

pub fn counter(&self, name: &str, labels: HashMap<String, String>) -> i64

Increment a counter by delta (default 1).

pub fn counter_by( &self, name: &str, labels: HashMap<String, String>, delta: i64, ) -> i64

Increment a counter by a specific amount.

pub fn gauge(&self, name: &str, labels: HashMap<String, String>, value: f64)

Set a gauge to value.

pub fn gauge_add(&self, name: &str, labels: HashMap<String, String>, delta: f64)

Add delta to a gauge.

pub fn histogram_observe( &self, name: &str, labels: HashMap<String, String>, value: f64, )

Record a histogram observation.

pub fn set_default_buckets(&self, boundaries: Vec<f64>)

Override the default bucket boundaries for future histogram metrics.

pub fn snapshot(&self) -> Vec<Metric>

Take a snapshot of all current metric values.

pub fn get_counter(&self, name: &str, labels: &HashMap<String, String>) -> i64

Get the current counter value (returns 0 if not found).

pub fn get_gauge(&self, name: &str, labels: &HashMap<String, String>) -> f64

Get the current gauge value (returns 0.0 if not found).

pub fn reset(&self)

Reset all metrics (clear all entries).

Trait Implementations

impl Default for MetricsRegistry

fn default() -> Self

Returns the “default value” for a type.