Enum ExtentReadError 

pub enum ExtentReadError {
    Cancelled,
    TraversalState,
    WrongRootKind,
    InvalidRange,
    InvalidSpanLimit,
    AllocationFailed,
    InvalidLimits,
    TooManySpans,
    Cycle,
    HeightExceeded,
    ChildBoundsMismatch,
    IncompleteCoverage,
    PageTooLarge {
        observed: u64,
        maximum: u64,
    },
    Storage(ObjectStoreError),
    Decode(CanonicalDecodeError),
    Work(WorkError),
}

Sparse extent range-planning failures.

Variants

Cancelled

Cooperative cancellation occurred before the next storage boundary.

TraversalState

The private driver attempted an impossible transition.

WrongRootKind

Root object is not an authenticated extent page.

InvalidRange

Requested range exceeds the file or overflows.

InvalidSpanLimit

Requested output-span bound must be positive for a non-empty range.

AllocationFailed

Decode or traversal scratch could not be admitted or allocated.

InvalidLimits

Decode or traversal limits are not representable on this target.

TooManySpans

Intersecting sparse spans exceed the caller’s admitted output bound.

Cycle

Child graph references an ancestor or repeated page.

HeightExceeded

Traversal exceeds its hard page-height bound.

ChildBoundsMismatch

Parent child range does not match the decoded child content.

IncompleteCoverage

Planned spans do not cover the request exactly once.

PageTooLarge

Stored page exceeds its decode/work bound.

Fields

observed: u64

Observed canonical bytes.

maximum: u64

Admitted maximum.

Storage(ObjectStoreError)

Immutable-object backend failed.

Decode(CanonicalDecodeError)

Canonical page failed decoding or validation.

Work(WorkError)

Exact work exceeded or overflowed its budget.

Trait Implementations

impl Debug for ExtentReadError

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

Formats the value using the given formatter.

impl Display for ExtentReadError

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

Formats the value using the given formatter.

impl Error for ExtentReadError

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 From<CanonicalDecodeError> for ExtentReadError

fn from(source: CanonicalDecodeError) -> Self

Converts to this type from the input type.

impl From<ExtentReadError> for ExtentCloneError

fn from(source: ExtentReadError) -> Self

Converts to this type from the input type.

impl From<ExtentReadError> for FileRangeReadError

fn from(source: ExtentReadError) -> Self

Converts to this type from the input type.

impl From<ExtentReadError> for MergeGenerationError

fn from(source: ExtentReadError) -> Self

Converts to this type from the input type.

impl From<ExtentReadError> for AuthenticatedProbeError

fn from(source: ExtentReadError) -> Self

Converts to this type from the input type.

impl From<ExtentReadError> for RegularMutationError

fn from(source: ExtentReadError) -> Self

Converts to this type from the input type.

impl From<ObjectStoreError> for ExtentReadError

fn from(source: ObjectStoreError) -> Self

Converts to this type from the input type.

impl From<WorkError> for ExtentReadError

fn from(source: WorkError) -> Self

Converts to this type from the input type.