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Struct polkadot_node_primitives::approval::time::DelayedApprovalTimer

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pub struct DelayedApprovalTimer { /* private fields */ }
Expand description

A list of delayed futures that gets triggered when the waiting time has expired and it is time to sign the candidate. We have a timer per relay-chain block.

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impl DelayedApprovalTimer

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pub fn maybe_arm_timer( &mut self, wait_until: Tick, clock: &dyn Clock, block_hash: Hash, validator_index: ValidatorIndex, )

Starts a single timer per block hash

Guarantees that if a timer already exits for the give block hash, no additional timer is started.

Trait Implementations§

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impl Default for DelayedApprovalTimer

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fn default() -> DelayedApprovalTimer

Returns the “default value” for a type. Read more
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impl FusedStream for DelayedApprovalTimer

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fn is_terminated(&self) -> bool

Returns true if the stream should no longer be polled.
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impl Stream for DelayedApprovalTimer

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type Item = (H256, ValidatorIndex)

Values yielded by the stream.
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fn poll_next( self: Pin<&mut Self>, cx: &mut Context<'_>, ) -> Poll<Option<Self::Item>>

Attempt to pull out the next value of this stream, registering the current task for wakeup if the value is not yet available, and returning None if the stream is exhausted. Read more
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fn size_hint(&self) -> (usize, Option<usize>)

Returns the bounds on the remaining length of the stream. Read more

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Execute predicate over asynchronous stream, and return true if any element in stream satisfied a predicate. Read more
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Execute predicate over asynchronous stream, and return true if all element in stream satisfied a predicate. Read more
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Flattens a stream of streams into just one continuous stream. Polls inner streams produced by the base stream concurrently. Read more
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Combinator similar to [StreamExt::fold] that holds internal state and produces a new stream. Read more
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where F: FnMut(&Self::Item) -> Fut, Fut: Future<Output = bool>, Self: Sized,

Skip elements on this stream while the provided asynchronous predicate resolves to true. Read more
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Take elements from this stream while the provided asynchronous predicate resolves to true. Read more
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where Fut: Future, Self: Sized,

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Creates a new stream of at most n items of the underlying stream. Read more
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Creates a new stream which skips n items of the underlying stream. Read more
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Fuse a stream such that poll_next will never again be called once it has finished. This method can be used to turn any Stream into a FusedStream. Read more
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fn catch_unwind(self) -> CatchUnwind<Self>
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Catches unwinding panics while polling the stream. Read more
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fn chunks(self, capacity: usize) -> Chunks<Self>
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An adaptor for chunking up items of the stream inside a vector. Read more
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An adaptor for chunking up ready items of the stream inside a vector. Read more
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fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self
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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
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