pub struct CancellationToken { /* private fields */ }Expand description
Token for requesting and tracking cancellation.
The token is shared between the TransferHandle (user-facing) and the
pipeline stages (internal). When request() is called, stages will
check at safe points and transition through draining to confirmed.
Implementations§
Source§impl CancellationToken
impl CancellationToken
Sourcepub fn new() -> (Self, CancelStateUpdater)
pub fn new() -> (Self, CancelStateUpdater)
Create a new cancellation token pair.
Returns (token, state_tx) where:
token: Clone and give to TransferHandle for user accessstate_tx: Keep in pipeline for updating state
Sourcepub fn request(&self)
pub fn request(&self)
Request cancellation.
This signals all pipeline stages to stop processing at the next safe point.
Returns immediately - use wait_confirmed() to await full confirmation.
Sourcepub fn is_requested(&self) -> bool
pub fn is_requested(&self) -> bool
Check if cancellation has been requested.
Sourcepub fn state(&self) -> CancelState
pub fn state(&self) -> CancelState
Get the current cancellation state.
Sourcepub fn is_confirmed(&self) -> bool
pub fn is_confirmed(&self) -> bool
Check if cancellation is fully confirmed.
Sourcepub fn wait_confirmed(&self) -> CancelConfirmation
pub fn wait_confirmed(&self) -> CancelConfirmation
Create a future that resolves when cancellation is confirmed.
This is the primary way to await clean release of all blocks.
Trait Implementations§
Source§impl Clone for CancellationToken
impl Clone for CancellationToken
Source§fn clone(&self) -> CancellationToken
fn clone(&self) -> CancellationToken
1.0.0 (const: unstable) · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreAuto Trait Implementations§
impl !RefUnwindSafe for CancellationToken
impl !UnwindSafe for CancellationToken
impl Freeze for CancellationToken
impl Send for CancellationToken
impl Sync for CancellationToken
impl Unpin for CancellationToken
impl UnsafeUnpin for CancellationToken
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