Struct sc_consensus::LongestChain

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pub struct LongestChain<B, Block> { /* private fields */ }

Expand description

Implement Longest Chain Select implementation where ‘longest’ is defined as the highest number of blocks

Implementations

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impl<B, Block> LongestChain<B, Block> where
B: Backend<Block>,
Block: BlockT,

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pub fn new(backend: Arc) -> Self

Instantiate a new LongestChain for Backend B

Trait Implementations

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impl<B, Block> Clone for LongestChain<B, Block>

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fn clone(&self) -> Self

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl<B, Block> SelectChain<Block> for LongestChain<B, Block> where
B: Backend<Block>,
Block: BlockT,

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fn leaves(&self) -> Result<Vec<<Block as BlockT>::Hash>, ConsensusError>

Get all leaves of the chain: block hashes that have no children currently. Leaves that can never be finalized will not be returned. Read more

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fn best_chain(&self) -> Result<<Block as BlockT>::Header, ConsensusError>

Among those leaves deterministically pick one chain as the generally best chain to author new blocks upon and probably finalize. Read more

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fn finality_target(
 &self,
 target_hash: Block::Hash,
 maybe_max_number: Option<NumberFor<Block>>
) -> Result<Option<Block::Hash>, ConsensusError>

Get the best descendent of target_hash that we should attempt to finalize next, if any. It is valid to return the given target_hash itself if no better descendent exists. Read more

Auto Trait Implementations

impl<B, Block> RefUnwindSafe for LongestChain<B, Block> where
B: RefUnwindSafe,
Block: RefUnwindSafe,

impl<B, Block> Send for LongestChain<B, Block> where
B: Send + Sync,
Block: Send,

impl<B, Block> Sync for LongestChain<B, Block> where
B: Send + Sync,
Block: Sync,

impl<B, Block> Unpin for LongestChain<B, Block> where
Block: Unpin,

impl<B, Block> UnwindSafe for LongestChain<B, Block> where
B: RefUnwindSafe,
Block: UnwindSafe,

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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pub fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

pub fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> CheckedConversion for T

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fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,

Convert from a value of T into an equivalent instance of Option<Self>. Read more

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fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,

Consume self to return Some equivalent value of Option<T>. Read more

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pub fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

pub fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,

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pub fn from_ref(outer: &Outer) -> &T

Get a reference to the inner from the outer.

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pub fn from_mut(outer: &mut Outer) -> &mut T

Get a mutable reference to the inner from the outer.

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impl<T> Pointable for T

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pub const ALIGN: usize

The alignment of pointer.

type Init = T

The type for initializers.

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pub unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more

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pub unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more

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pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more

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pub unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

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impl<T> Same<T> for T

type Output = T

Should always be Self

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impl<T> SaturatedConversion for T

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fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,

Convert from a value of T into an equivalent instance of Self. Read more

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fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,

Consume self to return an equivalent value of T. Read more

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

pub fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

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impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,

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pub fn unchecked_into(self) -> T

The counterpart to unchecked_from.

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impl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,

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pub fn unique_saturated_into(self) -> T

Consume self to return an equivalent value of T.

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impl<V, T> VZip<V> for T where
V: MultiLane<T>,

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pub fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

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Struct sc_consensus::LongestChain

Implementations

impl<B, Block> LongestChain<B, Block> where B: Backend<Block>, Block: BlockT,

pub fn new(backend: Arc<B>) -> Self

Trait Implementations

impl<B, Block> Clone for LongestChain<B, Block>

fn clone(&self) -> Self

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

impl<B, Block> SelectChain<Block> for LongestChain<B, Block> where B: Backend<Block>, Block: BlockT,

fn leaves(&self) -> Result<Vec<<Block as BlockT>::Hash>, ConsensusError>

fn best_chain(&self) -> Result<<Block as BlockT>::Header, ConsensusError>

fn finality_target( &self, target_hash: Block::Hash, maybe_max_number: Option<NumberFor<Block>>) -> Result<Option<Block::Hash>, ConsensusError>

Auto Trait Implementations

impl<B, Block> RefUnwindSafe for LongestChain<B, Block> where B: RefUnwindSafe, Block: RefUnwindSafe,

impl<B, Block> Send for LongestChain<B, Block> where B: Send + Sync, Block: Send,

impl<B, Block> Sync for LongestChain<B, Block> where B: Send + Sync, Block: Sync,

impl<B, Block> Unpin for LongestChain<B, Block> where Block: Unpin,

impl<B, Block> UnwindSafe for LongestChain<B, Block> where B: RefUnwindSafe, Block: UnwindSafe,

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

pub fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

pub fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

pub fn borrow_mut(&mut self) -> &mut T

impl<T> CheckedConversion for T

fn checked_from<T>(t: T) -> Option<Self> where Self: TryFrom<T>,

fn checked_into<T>(self) -> Option<T> where Self: TryInto<T>,

impl<T> DynClone for T where T: Clone,

pub fn __clone_box(&self, Private) -> *mut ()

impl<T> From<T> for T

pub fn from(t: T) -> T

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for T where U: From<T>,

pub fn into(self) -> U

impl<T, Outer> IsWrappedBy<Outer> for T where Outer: AsRef<T> + AsMut<T> + From<T>, T: From<Outer>,

pub fn from_ref(outer: &Outer) -> &T

pub fn from_mut(outer: &mut Outer) -> &mut T

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T> Same<T> for T

type Output = T

impl<T> SaturatedConversion for T

fn saturated_from<T>(t: T) -> Self where Self: UniqueSaturatedFrom<T>,

fn saturated_into<T>(self) -> T where Self: UniqueSaturatedInto<T>,

impl<T> ToOwned for T where T: Clone,

type Owned = T

pub fn to_owned(&self) -> T

pub fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<S, T> UncheckedInto<T> for S where T: UncheckedFrom<S>,

pub fn unchecked_into(self) -> T

impl<T, S> UniqueSaturatedInto<T> for S where T: Bounded, S: TryInto<T>,

pub fn unique_saturated_into(self) -> T

impl<V, T> VZip<V> for T where V: MultiLane<T>,

pub fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

impl<T> MaybeRefUnwindSafe for T where T: RefUnwindSafe,

impl<B, Block> LongestChain<B, Block> where
B: Backend<Block>,
Block: BlockT,

impl<B, Block> SelectChain<Block> for LongestChain<B, Block> where
B: Backend<Block>,
Block: BlockT,

fn finality_target(
&self,
target_hash: Block::Hash,
maybe_max_number: Option<NumberFor<Block>>
) -> Result<Option<Block::Hash>, ConsensusError>

impl<B, Block> RefUnwindSafe for LongestChain<B, Block> where
B: RefUnwindSafe,
Block: RefUnwindSafe,

impl<B, Block> Send for LongestChain<B, Block> where
B: Send + Sync,
Block: Send,

impl<B, Block> Sync for LongestChain<B, Block> where
B: Send + Sync,
Block: Sync,

impl<B, Block> Unpin for LongestChain<B, Block> where
Block: Unpin,

impl<B, Block> UnwindSafe for LongestChain<B, Block> where
B: RefUnwindSafe,
Block: UnwindSafe,

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

fn checked_from<T>(t: T) -> Option<Self> where
Self: TryFrom<T>,

fn checked_into<T>(self) -> Option<T> where
Self: TryInto<T>,

impl<T> DynClone for T where
T: Clone,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T, Outer> IsWrappedBy<Outer> for T where
Outer: AsRef<T> + AsMut<T> + From<T>,
T: From<Outer>,

fn saturated_from<T>(t: T) -> Self where
Self: UniqueSaturatedFrom<T>,

fn saturated_into<T>(self) -> T where
Self: UniqueSaturatedInto<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<S, T> UncheckedInto<T> for S where
T: UncheckedFrom<S>,

impl<T, S> UniqueSaturatedInto<T> for S where
T: Bounded,
S: TryInto<T>,

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

impl<T> MaybeRefUnwindSafe for T where
T: RefUnwindSafe,