Struct MetricsClient 

pub struct MetricsClient { /* private fields */ }

Singleton client for managing OpenTelemetry metrics instruments.

The actual metrics export destination (console, OTLP endpoint, etc.) is configured through OpenTelemetry SDK configuration by users, not by this client.

Implementations

impl MetricsClient

pub fn global() -> &'static MetricsClient

Get the singleton MetricsClient instance.

Uses the global OpenTelemetry meter provider. Users should configure the meter provider before calling this method.

pub fn record_cycle_count( &self, count: u64, attributes: &HashMap<String, String>, )

Record event loop cycle count.

pub fn record_start_cycle(&self, attributes: &HashMap<String, String>)

Record event loop start cycle.

pub fn record_end_cycle(&self, attributes: &HashMap<String, String>)

Record event loop end cycle.

pub fn record_cycle_duration( &self, duration_secs: f64, attributes: &HashMap<String, String>, )

Record cycle duration.

pub fn record_latency( &self, latency_ms: u64, attributes: &HashMap<String, String>, )

Record latency.

pub fn record_input_tokens( &self, tokens: u32, attributes: &HashMap<String, String>, )

Record input tokens.

pub fn record_output_tokens( &self, tokens: u32, attributes: &HashMap<String, String>, )

Record output tokens.

pub fn record_cache_read_input_tokens( &self, tokens: u32, attributes: &HashMap<String, String>, )

Record cache read input tokens.

pub fn record_cache_write_input_tokens( &self, tokens: u32, attributes: &HashMap<String, String>, )

Record cache write input tokens.

pub fn record_time_to_first_token( &self, time_ms: u64, attributes: &HashMap<String, String>, )

Record model time to first token.

pub fn record_tool_call_count( &self, count: u64, attributes: &HashMap<String, String>, )

Record tool call count.

pub fn record_tool_success_count( &self, count: u64, attributes: &HashMap<String, String>, )

Record tool success count.

pub fn record_tool_error_count( &self, count: u64, attributes: &HashMap<String, String>, )

Record tool error count.

pub fn record_tool_duration( &self, duration_secs: f64, attributes: &HashMap<String, String>, )

Record tool duration.

pub fn meter(&self) -> &Meter

Get the underlying meter for creating custom metrics.