Enum ExecError 

#[non_exhaustive]
pub enum ExecError {
    ZeroBudget,
    WidthExceedsPool {
        width: usize,
        pool: usize,
    },
    WidthExceedsBudget {
        width: usize,
        budget: usize,
    },
    Unavailable,
    StrategyUnavailable {
        strategy: BatchStrategy,
    },
}

Errors from building or using an Exec.

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.

ZeroBudget

A thread budget of zero was requested.

WidthExceedsPool

An SPMD width larger than the pool was requested.

Fields

width: usize

Requested width.

pool: usize

Workers in the pool.

WidthExceedsBudget

An SPMD width larger than the context’s thread budget was requested.

Fields

width: usize

Requested width.

budget: usize

The context’s budget.

Unavailable

Co-scheduled execution cannot be guaranteed here (serial context, or the caller is already a worker of the pool).

StrategyUnavailable

A forced batch strategy is unavailable on this route: BatchStrategy::WholeBatchVendor without a vendor batch call, or a BatchStrategy::Split that asks for both lanes and item threads on a route that runs each item serially inside its lane.

Fields

strategy: BatchStrategy

The requested strategy.

Trait Implementations

impl Clone for ExecError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for ExecError

impl Debug for ExecError

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

Formats the value using the given formatter.

impl Display for ExecError

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

Formats the value using the given formatter.

impl Eq for ExecError

impl Error for ExecError

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 ExecError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ExecError