Enum HostAccessError 

#[non_exhaustive]
pub enum HostAccessError {
    Unsupported {
        backend: &'static str,
    },
    ForeignDomain {
        expected: AllocationDomainId,
        actual: AllocationDomainId,
    },
    OverlappingHostMapping,
    GpuAccessInProgress,
    MappedForHost,
    BackendFailure {
        message: String,
    },
    LengthMismatch {
        expected: usize,
        actual: usize,
    },
}

Typed failure returned by guarded backend host access.

Examples

use tenferro_tensor::HostAccessError;

let error = HostAccessError::Unsupported { backend: "opaque" };
assert!(error.to_string().contains("opaque"));

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.

Unsupported

The backend does not expose guarded host access for this allocation.

Fields

backend: &'static str

ForeignDomain

The allocation belongs to another shared-allocation domain.

Fields

expected: AllocationDomainId

actual: AllocationDomainId

OverlappingHostMapping

Another host mapping overlaps this allocation.

GpuAccessInProgress

GPU work currently owns or has reserved the allocation.

MappedForHost

Host mapping is active while GPU access was requested.

BackendFailure

The backend failed to complete the map operation.

Fields

message: String

LengthMismatch

The source did not cover the full write-only mapping.

Fields

expected: usize

actual: usize

Trait Implementations

impl Clone for HostAccessError

fn clone(&self) -> HostAccessError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HostAccessError

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

Formats the value using the given formatter.

impl Display for HostAccessError

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

Formats the value using the given formatter.

impl Error for HostAccessError

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 HostAccessError

fn eq(&self, other: &HostAccessError) -> 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 Eq for HostAccessError

impl StructuralPartialEq for HostAccessError