Struct ClientMetrics 

pub struct ClientMetrics { /* private fields */ }

Client-side metrics recorder.

Records metrics for:

• Request/response latencies (with P50, P95, P99 percentiles)
• Request counts by operation type
• Response counts by status
• Error tracking

Maintains local state for (stats client) display while also emitting to the metrics crate facade for external monitoring.

Usage

use oxur_repl::metrics::ClientMetrics;
use std::time::Duration;

let metrics = ClientMetrics::new();

// Record request/response cycle
metrics.request_sent("eval");
metrics.response_received("success", Duration::from_millis(15));

// Query local state for display
let snapshot = metrics.snapshot();
println!("Average latency: {:.2}ms", snapshot.average_latency_ms);

Implementations

impl ClientMetrics

pub fn new() -> Self

Create a new ClientMetrics instance.

pub fn request_sent(&self, operation: &'static str)

Record a request being sent.

Increments repl.client.requests_total counter with operation label.

Arguments

• operation - The operation type (e.g., “eval”, “create_session”, “close”)

pub fn response_received(&self, status: &'static str, latency: Duration)

Record a response being received with latency.

Increments repl.client.responses_total counter with status label and records latency to histogram.

Arguments

• status - The response status (e.g., “success”, “error”)
• latency - The round-trip latency for this request/response

pub fn snapshot(&self) -> ClientMetricsSnapshot

Get a snapshot of current metrics for display.

Returns a point-in-time snapshot of all client metrics including latency percentiles.

pub fn requests_total(&self) -> u64

Get total requests count.

pub fn responses_total(&self) -> u64

Get total responses count.

pub fn responses_success(&self) -> u64

Get success responses count.

pub fn responses_error(&self) -> u64

Get error responses count.

Trait Implementations

impl Debug for ClientMetrics

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

Formats the value using the given formatter.

impl Default for ClientMetrics

fn default() -> Self

Returns the “default value” for a type.