Enum Outcome 

#[non_exhaustive]
pub enum Outcome {
    Ok,
    Contended,
    Lost,
    Failed,
    Unsupported,
}

How the measured operation ended.

Closed for the same reason Metric is: this is the second and last label dimension an exporter may use. The set is deliberately coarse — it answers “did it work, and if not, in which of the ways this system fails” and nothing more. Detail belongs in the StudyEvent stream or in an error, both of which are already bounded.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Ok

The operation succeeded.

Contended

The operation eventually succeeded after retrying or waiting because another worker held the target.

Lost

The operation lost a race and gave the work up cleanly.

Failed

The operation failed.

Unsupported

The backend or peer does not implement the operation.

Implementations

impl Outcome

pub const fn name(self) -> &'static str

The stable wire name of this outcome.

Stable in the same sense as Metric::name.

Trait Implementations

impl Clone for Outcome

fn clone(&self) -> Outcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Outcome

impl Debug for Outcome

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

Formats the value using the given formatter.

impl Display for Outcome

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

Formats the value using the given formatter.

impl Eq for Outcome

impl Hash for Outcome

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Outcome

fn cmp(&self, other: &Outcome) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Outcome

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for Outcome

fn partial_cmp(&self, other: &Outcome) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for Outcome