Struct NullObservability 

pub struct NullObservability;

Null observability extension - does nothing

Used when no observability is configured. Zero overhead.

Trait Implementations

impl Extension for NullObservability

fn info(&self) -> ExtensionInfo

Get extension information

fn as_any(&self) -> &dyn Any

Cast to Any for downcasting

fn as_any_mut(&mut self) -> &mut dyn Any

Cast to mutable Any for downcasting

fn init(&mut self) -> KernelResult<()>

Initialize the extension

fn shutdown(&mut self) -> KernelResult<()>

Shutdown the extension gracefully

impl ObservabilityExtension for NullObservability

fn counter_inc(&self, _name: &str, _value: u64, _labels: &[(&str, &str)])

Record a counter increment

fn gauge_set(&self, _name: &str, _value: f64, _labels: &[(&str, &str)])

Record a gauge value

fn histogram_observe(&self, _name: &str, _value: f64, _labels: &[(&str, &str)])

Record a histogram observation

fn span_start(&self, _name: &str, _parent: Option<u64>) -> u64

Start a new span

fn span_end(&self, _span_id: u64)

End a span

fn span_event(&self, _span_id: u64, _name: &str, _attributes: &[(&str, &str)])

Add an event to a span

fn log_debug(&self, message: &str, fields: &[(&str, &str)])

Log at debug level

fn log_info(&self, message: &str, fields: &[(&str, &str)])

Log at info level

fn log_warn(&self, message: &str, fields: &[(&str, &str)])

Log at warn level

fn log_error(&self, message: &str, fields: &[(&str, &str)])

Log at error level

fn report_health(&self, health: &HealthInfo)

Report health status (called periodically by kernel)