Enum LayoutError 

pub enum LayoutError {
    Overflow,
    AllocationFailed,
    ZeroGeneration,
    EmptyRegionSet,
    DuplicateRole(RoleId),
    LimitExceeded,
    EmptySlots,
    MappingTooSmall {
        required: u64,
        actual: u64,
    },
    BadMagic,
    BadVersion {
        major: u16,
        minor: u16,
    },
    BadHeaderSize(u32),
    SchemaMismatch,
    StaleGeneration {
        expected: u64,
        actual: u64,
    },
    UnexpectedRole {
        expected: RoleId,
        actual: u32,
    },
    UnexpectedWriter,
    ReservedFieldSet,
    BadTotalSize,
    BadAcknowledgementLayout,
    AcknowledgementNotZero,
    BadSlotLayout,
    SlotMetadataNotInitialized,
    BadSlotStride,
    RangeOutOfBounds,
    SlotOutOfBounds {
        slot: u32,
        count: u32,
    },
    AcknowledgementOutOfBounds {
        index: u32,
        count: u32,
    },
    PayloadOutOfBounds {
        length: u32,
        capacity: u32,
    },
    CapabilityPaddingNotZero,
    InvalidAcknowledgementRoute,
    DuplicateAcknowledgementRoute,
    IncompleteAcknowledgementRoutes,
    RouteRegionMismatch,
    TopologyMismatch,
}

Bounded region layout validation failures.

Variants

Overflow

Checked arithmetic overflowed.

AllocationFailed

Allocation of owned layout metadata failed.

ZeroGeneration

Generation zero is reserved.

EmptyRegionSet

No independent regions were configured.

DuplicateRole(RoleId)

A numeric role appeared more than once.

LimitExceeded

Slot, payload, acknowledgement, or total-size limit was exceeded.

EmptySlots

Region has no slots or zero-capacity slots.

MappingTooSmall

Mapping cannot contain the declared region.

Fields

required: u64

actual: u64

BadMagic

Region signature is invalid.

BadVersion

Region wire revision is unsupported.

Fields

major: u16

minor: u16

BadHeaderSize(u32)

Encoded header size is noncanonical.

SchemaMismatch

Schema identity differs.

StaleGeneration

Generation differs.

Fields

expected: u64

actual: u64

UnexpectedRole

Role differs.

Fields

expected: RoleId

actual: u32

UnexpectedWriter

Writer endpoint differs or is invalid.

ReservedFieldSet

Reserved bytes or flags are nonzero.

BadTotalSize

Total size is invalid.

BadAcknowledgementLayout

Acknowledgement layout is invalid.

AcknowledgementNotZero

Acknowledgement storage was not zero before transfer.

BadSlotLayout

Slot layout is invalid.

SlotMetadataNotInitialized

Quiescent slot generation or unpublished metadata is invalid.

BadSlotStride

Slot stride is invalid.

RangeOutOfBounds

A checked range escapes the mapping.

SlotOutOfBounds

Slot index is outside the negotiated count.

Fields

slot: u32

count: u32

AcknowledgementOutOfBounds

Acknowledgement index is outside the negotiated count.

Fields

index: u32

count: u32

PayloadOutOfBounds

Payload length exceeds its validated fixed-capacity slot.

Fields

length: u32

capacity: u32

CapabilityPaddingNotZero

Page-rounded capability padding was not zero before transfer.

InvalidAcknowledgementRoute

A route names a missing role, same-direction owner, or out-of-range index.

DuplicateAcknowledgementRoute

More than one route names a target slot or owner cell.

IncompleteAcknowledgementRoutes

A producer slot or acknowledgement cell has no exact route.

RouteRegionMismatch

A validated route was applied to a different region.

TopologyMismatch

Validated bytes do not belong to the supplied composed topology.

Trait Implementations

impl Clone for LayoutError

fn clone(&self) -> LayoutError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for LayoutError

impl Debug for LayoutError

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

Formats the value using the given formatter.

impl Display for LayoutError

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

Formats the value using the given formatter.

impl Eq for LayoutError

impl Error for LayoutError

Available on crate feature std only.

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<LayoutError> for BindingError

fn from(value: LayoutError) -> Self

Converts to this type from the input type.

impl PartialEq for LayoutError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for LayoutError