Enum PrefetchStateError 

pub enum PrefetchStateError {
    ZeroQueueCapacity,
    GenerationExhausted,
    WorkNotQueued {
        id: OffloadUnitId,
        generation: u64,
    },
    WorkNotInFlight {
        id: OffloadUnitId,
        generation: u64,
    },
    CompletionGenerationMismatch {
        id: OffloadUnitId,
        expected: u64,
        actual: u64,
    },
    DemandStillPending {
        id: OffloadUnitId,
    },
    CancellationStillInFlight,
}

Invalid use of the prefetch execution lifecycle.

Variants

ZeroQueueCapacity

Bounded admission requires at least one queue slot.

GenerationExhausted

The monotonic cancellation generation cannot advance safely.

WorkNotQueued

Backend notification rollback did not refer to admitted queued work.

Fields

id: OffloadUnitId

Logical unit in the invalid operation.

generation: u64

Exact operation generation.

WorkNotInFlight

Completion did not refer to backend-submitted work.

Fields

id: OffloadUnitId

Logical unit in the invalid operation.

generation: u64

Exact operation generation.

CompletionGenerationMismatch

Completion used a different exact generation from the active operation.

Fields

id: OffloadUnitId

Logical unit in the invalid operation.

expected: u64

Generation owned by the in-flight operation.

actual: u64

Generation supplied by the completion.

DemandStillPending

Demand attempted to consume a nonterminal operation.

Fields

id: OffloadUnitId

Logical unit whose operation is nonterminal.

CancellationStillInFlight

Cancellation finalization preceded exact in-flight completion.

Trait Implementations

impl Clone for PrefetchStateError

fn clone(&self) -> PrefetchStateError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PrefetchStateError

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

Formats the value using the given formatter.

impl Display for PrefetchStateError

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

Formats the value using the given formatter.

impl Eq for PrefetchStateError

impl Error for PrefetchStateError

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 PrefetchStateError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PrefetchStateError