Struct FinalizationGuard 

pub struct FinalizationGuard { /* private fields */ }

Atomic exactly-once finalization claim shared by actor and shutdown supervisor.

Implementations

impl FinalizationGuard

pub fn new( transaction_id: TransactionId, channel_id: ChannelId, session_id: Option<SessionId>, callback: Box<dyn CompletionCallback>, sequencer: Arc<EventSequencer>, ) -> Arc<Self>

Create a guard holding the one-shot callback.

pub fn sequencer(&self) -> &Arc<EventSequencer>

Event sequencer for this transaction.

pub fn set_session_id(&self, session_id: SessionId)

Update session id on the payload before claim (session establishment).

pub fn try_claim(&self) -> Option<FinalizationPayload>

Claim exactly once. Winner takes payload; losers get None.

pub fn is_claimed(&self) -> bool

Whether already claimed.

pub fn mark_callback_scheduled(&self)

Mark that a callback was scheduled (accounting).

pub fn callback_was_scheduled(&self) -> bool

Whether callback was scheduled.