Enum MemoryReservationError 

pub enum MemoryReservationError {
    BudgetExceeded {
        context: Box<str>,
        requested_bytes: usize,
        reserved_bytes: usize,
        budget_bytes: usize,
        availability: MemoryAvailability,
    },
    SizeOverflow {
        context: Box<str>,
        nrows: usize,
        ncols: usize,
        copies: usize,
    },
}

Typed refusal from MemoryGovernor::try_reserve.

Carries the full ledger evidence so callers can route to a chunked or matrix-free strategy (and so error messages explain why dense was refused). This is a routing signal, never an abort: the process still has its unreserved headroom, the requested allocation just does not fit the joint budget.

Variants

BudgetExceeded

Fields

context: Box<str>

requested_bytes: usize

reserved_bytes: usize

budget_bytes: usize

availability: MemoryAvailability

SizeOverflow

Fields

context: Box<str>

nrows: usize

ncols: usize

copies: usize

Trait Implementations

impl Clone for MemoryReservationError

fn clone(&self) -> MemoryReservationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryReservationError

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

Formats the value using the given formatter.

impl Display for MemoryReservationError

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

Formats the value using the given formatter.

impl Eq for MemoryReservationError

impl Error for MemoryReservationError

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<MemoryReservationError> for MatrixMaterializationError

fn from(source: MemoryReservationError) -> Self

Converts to this type from the input type.

impl PartialEq for MemoryReservationError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MemoryReservationError