Struct CancelToken 

pub struct CancelToken(/* private fields */);

Implementations

impl CancelToken

pub fn is_cancelled(&self) -> bool

pub fn register_cancel_resource( &self, resource: impl FnOnce() -> Result<(), Failure> + Send + 'static, ) -> Result<(), Failure>

Install the single optional resource hook before acquiring native resources. A late installation executes immediately and returns its failure to the installer. Hooks must be prompt: they must not join or wait for workers. A resource published after cancellation must also be revoked by its owner.

pub fn clear_cancel_resource(&self)

Call only after normal resource cleanup. An already detached callback may still run; the resource itself must serialize revocation and reuse.

Trait Implementations

impl Clone for CancelToken

fn clone(&self) -> CancelToken

Returns a duplicate of the value.

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

Performs copy-assignment from source.