Enum RequestOutcome 

#[non_exhaustive]
pub enum RequestOutcome {
    Completed,
    StoppedByCallback,
    Cancelled,
}

How a successfully waited non-blocking request ended.

This is a Rust-side classification because the native ABI does not expose its cancellation flag. Callback panic/error takes precedence, followed by an explicit callback stop, an observed terminal callback, and cancellation.

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.

Completed

Native generation delivered its terminal callback.

StoppedByCallback

The Rust callback returned StreamControl::Stop.

ABI v10 treats this as an explicit stop even for the terminal event.

Cancelled

Rust requested cancellation before completion was observable.

Trait Implementations

impl Clone for RequestOutcome

fn clone(&self) -> RequestOutcome

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RequestOutcome

impl Debug for RequestOutcome

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

Formats the value using the given formatter.

impl Eq for RequestOutcome

impl PartialEq for RequestOutcome

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RequestOutcome