Enum CancelWitnessError 

pub enum CancelWitnessError {
    TaskMismatch,
    RegionMismatch,
    EpochMismatch,
    PhaseRegression {
        from: CancelPhase,
        to: CancelPhase,
    },
    ReasonWeakened {
        from: CancelKind,
        to: CancelKind,
    },
}

Errors when validating cancellation witnesses.

Variants

TaskMismatch

Task identifiers do not match.

RegionMismatch

Region identifiers do not match.

EpochMismatch

Cancellation epoch differs.

PhaseRegression

Phase regression detected.

Fields

from: CancelPhase

Previous phase observed.

to: CancelPhase

New phase observed.

ReasonWeakened

Cancellation severity weakened.

Fields

from: CancelKind

Previous cancellation kind.

to: CancelKind

New cancellation kind.

Trait Implementations

impl Clone for CancelWitnessError

fn clone(&self) -> CancelWitnessError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CancelWitnessError

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

Formats the value using the given formatter.

impl PartialEq for CancelWitnessError

fn eq(&self, other: &CancelWitnessError) -> 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 Copy for CancelWitnessError

impl Eq for CancelWitnessError

impl StructuralPartialEq for CancelWitnessError