Enum ProductMetricError 

pub enum ProductMetricError {
    NotInitialized,
    DuplicateRegistration {
        subsystem: &'static str,
        name: &'static str,
    },
    UnknownMetric {
        subsystem: &'static str,
        name: &'static str,
    },
    WrongKind {
        subsystem: &'static str,
        name: &'static str,
        actual: MetricKind,
        expected: MetricKind,
    },
    LabelCountMismatch {
        subsystem: &'static str,
        name: &'static str,
        expected: usize,
        actual: usize,
    },
    Prometheus(String),
    LockPoisoned,
}

Errors returned by product metric registration or recording.

Variants

NotInitialized

The Prometheus registry has not been initialized.

DuplicateRegistration

A product metric with the same subsystem/name was already registered.

Fields

subsystem: &'static str

Owning subsystem.

name: &'static str

Metric name.

UnknownMetric

The handle does not point to a registered metric.

Fields

subsystem: &'static str

Owning subsystem.

name: &'static str

Metric name.

WrongKind

The recording operation does not match the registered metric kind.

Fields

subsystem: &'static str

Owning subsystem.

name: &'static str

Metric name.

actual: MetricKind

Registered kind.

expected: MetricKind

Expected kind.

LabelCountMismatch

The number of label values did not match the descriptor.

Fields

subsystem: &'static str

Owning subsystem.

name: &'static str

Metric name.

expected: usize

Expected label value count.

actual: usize

Actual label value count.

Prometheus(String)

Prometheus rejected the metric collector.

LockPoisoned

The product metric registry lock was poisoned.

Trait Implementations

impl Clone for ProductMetricError

fn clone(&self) -> ProductMetricError

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ProductMetricError

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

Formats the value using the given formatter.

impl Display for ProductMetricError

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

Formats the value using the given formatter.

impl Error for ProductMetricError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for ProductMetricError

fn eq(&self, other: &ProductMetricError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ProductMetricError

impl StructuralPartialEq for ProductMetricError