Struct beefy_primitives::Commitment [−][src]
pub struct Commitment<TBlockNumber, TPayload> {
pub payload: TPayload,
pub block_number: TBlockNumber,
pub validator_set_id: ValidatorSetId,
}Expand description
A commitment signed by GRANDPA validators as part of BEEFY protocol.
The commitment contains a payload extracted from the finalized block at height block_number. GRANDPA validators collect signatures on commitments and a stream of such signed commitments (see SignedCommitment) forms the BEEFY protocol.
Fields
payload: TPayloadThe payload being signed.
This should be some form of cumulative representation of the chain (think MMR root hash). The payload should also contain some details that allow the light client to verify next validator set. The protocol does not enforce any particular format of this data, nor how often it should be present in commitments, however the light client has to be provided with full validator set whenever it performs the transition (i.e. importing first block with validator_set_id incremented).
block_number: TBlockNumberFinalized block number this commitment is for.
GRANDPA validators agree on a block they create a commitment for and start collecting signatures. This process is called a round. There might be multiple rounds in progress (depending on the block choice rule), however since the payload is supposed to be cumulative, it is not required to import all commitments. BEEFY light client is expected to import at least one commitment per epoch, but is free to import as many as it requires.
validator_set_id: ValidatorSetIdBEEFY validator set supposed to sign this commitment.
Validator set is changing once per epoch. The Light Client must be provided by details
about the validator set whenever it’s importing first commitment with a new
validator_set_id. Validator set data MUST be verifiable, for instance using
payload information.
Trait Implementations
impl<TBlockNumber, TPayload> Ord for Commitment<TBlockNumber, TPayload> where
TBlockNumber: Ord,
TPayload: Eq,
impl<TBlockNumber, TPayload> Ord for Commitment<TBlockNumber, TPayload> where
TBlockNumber: Ord,
TPayload: Eq,
impl<TBlockNumber: PartialEq, TPayload: PartialEq> PartialEq<Commitment<TBlockNumber, TPayload>> for Commitment<TBlockNumber, TPayload>
impl<TBlockNumber: PartialEq, TPayload: PartialEq> PartialEq<Commitment<TBlockNumber, TPayload>> for Commitment<TBlockNumber, TPayload>
This method tests for self and other values to be equal, and is used
by ==. Read more
This method tests for !=.
impl<TBlockNumber, TPayload> PartialOrd<Commitment<TBlockNumber, TPayload>> for Commitment<TBlockNumber, TPayload> where
TBlockNumber: Ord,
TPayload: Eq,
impl<TBlockNumber, TPayload> PartialOrd<Commitment<TBlockNumber, TPayload>> for Commitment<TBlockNumber, TPayload> where
TBlockNumber: Ord,
TPayload: Eq,
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <=
operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
impl<TBlockNumber, TPayload> EncodeLike<Commitment<TBlockNumber, TPayload>> for Commitment<TBlockNumber, TPayload> where
TPayload: Encode,
TPayload: Encode,
TBlockNumber: Encode,
TBlockNumber: Encode,
Auto Trait Implementations
impl<TBlockNumber, TPayload> RefUnwindSafe for Commitment<TBlockNumber, TPayload> where
TBlockNumber: RefUnwindSafe,
TPayload: RefUnwindSafe,
impl<TBlockNumber, TPayload> Send for Commitment<TBlockNumber, TPayload> where
TBlockNumber: Send,
TPayload: Send,
impl<TBlockNumber, TPayload> Sync for Commitment<TBlockNumber, TPayload> where
TBlockNumber: Sync,
TPayload: Sync,
impl<TBlockNumber, TPayload> Unpin for Commitment<TBlockNumber, TPayload> where
TBlockNumber: Unpin,
TPayload: Unpin,
impl<TBlockNumber, TPayload> UnwindSafe for Commitment<TBlockNumber, TPayload> where
TBlockNumber: UnwindSafe,
TPayload: UnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can
then be further downcast into Box<ConcreteType> where ConcreteType implements Trait. Read more
Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be
further downcast into Rc<ConcreteType> where ConcreteType implements Trait. Read more
Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &Any’s vtable from &Trait’s. Read more
Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot
generate &mut Any’s vtable from &mut Trait’s. Read more
Compare self to key and return true if they are equal.
Causes self to use its Binary implementation when Debug-formatted.
Causes self to use its Display implementation when
Debug-formatted. Read more
Causes self to use its LowerExp implementation when
Debug-formatted. Read more
Causes self to use its LowerHex implementation when
Debug-formatted. Read more
Causes self to use its Octal implementation when Debug-formatted.
Causes self to use its Pointer implementation when
Debug-formatted. Read more
Causes self to use its UpperExp implementation when
Debug-formatted. Read more
Causes self to use its UpperHex implementation when
Debug-formatted. Read more
Pipes by value. This is generally the method you want to use. Read more
Borrows self and passes that borrow into the pipe function. Read more
Mutably borrows self and passes that borrow into the pipe function. Read more
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Mutably borrows self, then passes self.borrow_mut() into the pipe
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Mutably borrows self, then passes self.as_mut() into the pipe
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Borrows self, then passes self.deref() into the pipe function.
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
T: 'a,
R: 'a,
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Self: Borrow<T>,
T: 'a,
R: 'a,
Pipes a trait borrow into a function that cannot normally be called in suffix position. Read more
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
fn pipe_deref<'a, R>(&'a self, func: impl FnOnce(&'a Self::Target) -> R) -> R where
Self: Deref,
R: 'a,
Pipes a dereference into a function that cannot normally be called in suffix position. Read more
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Immutable access to the Borrow<B> of a value. Read more
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Calls .tap() only in debug builds, and is erased in release builds.
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builds. Read more
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Calls .tap_borrow_mut() only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref() only in debug builds, and is erased in release
builds. Read more
Calls .tap_ref_mut() only in debug builds, and is erased in release
builds. Read more
Calls .tap_deref() only in debug builds, and is erased in release
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Calls tap_ref in debug builds, and does nothing in release builds.
Provides mutable access to the reference for modification.
Calls tap_ref_mut in debug builds, and does nothing in release builds.
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Calls tap_borrow in debug builds, and does nothing in release builds.
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Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
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F: FnOnce(&Self::Target) -> R,
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F: FnOnce(&Self::Target) -> R,
Calls tap_deref in debug builds, and does nothing in release builds.
fn tap_deref_mut<F, R>(self, func: F) -> Self where
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