hotshot::traits::election::randomized_committee_members

Struct RandomizedCommitteeMembers

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pub struct RandomizedCommitteeMembers<T: NodeType, CONFIG: QuorumFilterConfig, DaConfig: QuorumFilterConfig> {
    eligible_leaders: Vec<PeerConfig<T>>,
    stake_table: Vec<PeerConfig<T>>,
    da_stake_table: Vec<PeerConfig<T>>,
    indexed_stake_table: BTreeMap<T::SignatureKey, PeerConfig<T>>,
    indexed_da_stake_table: BTreeMap<T::SignatureKey, PeerConfig<T>>,
    first_epoch: Option<T::Epoch>,
    _pd: PhantomData<CONFIG>,
    _da_pd: PhantomData<DaConfig>,
}
Expand description

The static committee election

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§eligible_leaders: Vec<PeerConfig<T>>

The nodes eligible for leadership. NOTE: This is currently a hack because the DA leader needs to be the quorum leader but without voting rights.

§stake_table: Vec<PeerConfig<T>>

The nodes on the committee and their stake

§da_stake_table: Vec<PeerConfig<T>>

The nodes on the da committee and their stake

§indexed_stake_table: BTreeMap<T::SignatureKey, PeerConfig<T>>

The nodes on the committee and their stake, indexed by public key

§indexed_da_stake_table: BTreeMap<T::SignatureKey, PeerConfig<T>>

The nodes on the da committee and their stake, indexed by public key

§first_epoch: Option<T::Epoch>

The first epoch which will be encountered. For testing, will panic if an epoch-carrying function is called when first_epoch is None or is Some greater than that epoch.

§_pd: PhantomData<CONFIG>

Phantom

§_da_pd: PhantomData<DaConfig>

Phantom

Implementations§

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impl<TYPES: NodeType, CONFIG: QuorumFilterConfig, DaConfig: QuorumFilterConfig> RandomizedCommitteeMembers<TYPES, CONFIG, DaConfig>

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fn make_quorum_filter( &self, epoch: <TYPES as NodeType>::Epoch, ) -> BTreeSet<usize>

Creates a set of indices into the stake_table which reference the nodes selected for this epoch’s committee

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fn make_da_quorum_filter( &self, epoch: <TYPES as NodeType>::Epoch, ) -> BTreeSet<usize>

Creates a set of indices into the da_stake_table which reference the nodes selected for this epoch’s da committee

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fn debug_display_offsets(&self)

Writes the offsets used for the quorum filter and da_quorum filter to stdout

Trait Implementations§

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impl<T: Clone + NodeType, CONFIG: Clone + QuorumFilterConfig, DaConfig: Clone + QuorumFilterConfig> Clone for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where T::SignatureKey: Clone, T::Epoch: Clone,

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fn clone(&self) -> RandomizedCommitteeMembers<T, CONFIG, DaConfig>

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<T: Debug + NodeType, CONFIG: Debug + QuorumFilterConfig, DaConfig: Debug + QuorumFilterConfig> Debug for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where T::SignatureKey: Debug, T::Epoch: Debug,

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl<T: Hash + NodeType, CONFIG: Hash + QuorumFilterConfig, DaConfig: Hash + QuorumFilterConfig> Hash for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where T::SignatureKey: Hash, T::Epoch: Hash,

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl<TYPES: NodeType, CONFIG: QuorumFilterConfig, DaConfig: QuorumFilterConfig> Membership<TYPES> for RandomizedCommitteeMembers<TYPES, CONFIG, DaConfig>

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fn new( committee_members: Vec<PeerConfig<TYPES>>, da_members: Vec<PeerConfig<TYPES>>, ) -> Self

Create a new election

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fn stake_table( &self, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> HSStakeTable<TYPES>

Get the stake table for the current view

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fn da_stake_table( &self, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> HSStakeTable<TYPES>

Get the da stake table for the current view

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fn committee_members( &self, _view_number: <TYPES as NodeType>::View, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> BTreeSet<<TYPES as NodeType>::SignatureKey>

Get all members of the committee for the current view

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fn da_committee_members( &self, _view_number: <TYPES as NodeType>::View, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> BTreeSet<<TYPES as NodeType>::SignatureKey>

Get all members of the committee for the current view

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fn stake( &self, pub_key: &<TYPES as NodeType>::SignatureKey, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> Option<PeerConfig<TYPES>>

Get the stake table entry for a public key

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fn da_stake( &self, pub_key: &<TYPES as NodeType>::SignatureKey, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> Option<PeerConfig<TYPES>>

Get the da stake table entry for a public key

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fn has_stake( &self, pub_key: &<TYPES as NodeType>::SignatureKey, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> bool

Check if a node has stake in the committee

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fn has_da_stake( &self, pub_key: &<TYPES as NodeType>::SignatureKey, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> bool

Check if a node has stake in the committee

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fn lookup_leader( &self, view_number: <TYPES as NodeType>::View, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> Result<TYPES::SignatureKey>

Index the vector of public keys with the current view number

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fn total_nodes(&self, epoch: Option<<TYPES as NodeType>::Epoch>) -> usize

Get the total number of nodes in the committee

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fn da_total_nodes(&self, epoch: Option<<TYPES as NodeType>::Epoch>) -> usize

Get the total number of nodes in the committee

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fn success_threshold(&self, epoch: Option<<TYPES as NodeType>::Epoch>) -> U256

Get the voting success threshold for the committee

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fn da_success_threshold( &self, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> U256

Get the voting success threshold for the committee

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fn failure_threshold(&self, epoch: Option<<TYPES as NodeType>::Epoch>) -> U256

Get the voting failure threshold for the committee

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fn upgrade_threshold(&self, epoch: Option<<TYPES as NodeType>::Epoch>) -> U256

Get the voting upgrade threshold for the committee

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type Error = Error

The error type returned by methods like lookup_leader.
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fn has_stake_table(&self, _epoch: TYPES::Epoch) -> bool

Returns if the stake table is available for the given epoch
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fn has_randomized_stake_table(&self, _epoch: TYPES::Epoch) -> Result<bool>

Returns if the randomized stake table is available for the given epoch
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fn add_drb_result( &mut self, _epoch: <TYPES as NodeType>::Epoch, _drb_result: DrbResult, )

Called to notify the Membership when a new DRB result has been calculated. Observes the same semantics as add_epoch_root
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fn set_first_epoch( &mut self, epoch: TYPES::Epoch, _initial_drb_result: DrbResult, )

Called to notify the Membership that Epochs are enabled. Implementations should copy the pre-epoch stake table into epoch and epoch+1 when this is called. The value of initial_drb_result should be used for DRB calculations for epochs (epoch+1) and earlier.
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fn first_epoch(&self) -> Option<TYPES::Epoch>

Get first epoch if epochs are enabled, None otherwise
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fn total_stake(&self, epoch: Option<<TYPES as NodeType>::Epoch>) -> Uint<256, 4>

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fn total_da_stake( &self, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> Uint<256, 4>

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fn leader( &self, view: <TYPES as NodeType>::View, epoch: Option<<TYPES as NodeType>::Epoch>, ) -> Result<<TYPES as NodeType>::SignatureKey, Error>

The leader of the committee for view view_number in epoch. Read more
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fn get_epoch_root( _membership: Arc<RwLock<Self>>, _block_height: u64, _epoch: <TYPES as NodeType>::Epoch, ) -> impl Future<Output = Result<Leaf2<TYPES>, Error>> + Send

Gets the validated block header and epoch number of the epoch root at the given block height
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fn get_epoch_drb( _membership: Arc<RwLock<Self>>, _block_height: u64, _epoch: <TYPES as NodeType>::Epoch, ) -> impl Future<Output = Result<[u8; 32], Error>> + Send

Gets the DRB result for the given epoch
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fn add_epoch_root( _membership: Arc<RwLock<Self>>, _epoch: <TYPES as NodeType>::Epoch, _block_header: <TYPES as NodeType>::BlockHeader, ) -> impl Future<Output = Result<(), Error>> + Send

Handles notifications that a new epoch root has been created.
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impl<T: PartialEq + NodeType, CONFIG: PartialEq + QuorumFilterConfig, DaConfig: PartialEq + QuorumFilterConfig> PartialEq for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where T::SignatureKey: PartialEq, T::Epoch: PartialEq,

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fn eq(&self, other: &RandomizedCommitteeMembers<T, CONFIG, DaConfig>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T: Eq + NodeType, CONFIG: Eq + QuorumFilterConfig, DaConfig: Eq + QuorumFilterConfig> Eq for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where T::SignatureKey: Eq, T::Epoch: Eq,

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impl<T: NodeType, CONFIG: QuorumFilterConfig, DaConfig: QuorumFilterConfig> StructuralPartialEq for RandomizedCommitteeMembers<T, CONFIG, DaConfig>

Auto Trait Implementations§

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impl<T, CONFIG, DaConfig> Freeze for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where <T as NodeType>::Epoch: Freeze,

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impl<T, CONFIG, DaConfig> RefUnwindSafe for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where <T as NodeType>::Epoch: RefUnwindSafe, CONFIG: RefUnwindSafe, DaConfig: RefUnwindSafe, <<T as NodeType>::SignatureKey as SignatureKey>::StakeTableEntry: RefUnwindSafe, <T as NodeType>::StateSignatureKey: RefUnwindSafe, <T as NodeType>::SignatureKey: RefUnwindSafe,

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impl<T, CONFIG, DaConfig> Send for RandomizedCommitteeMembers<T, CONFIG, DaConfig>

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impl<T, CONFIG, DaConfig> Sync for RandomizedCommitteeMembers<T, CONFIG, DaConfig>

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impl<T, CONFIG, DaConfig> Unpin for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where <T as NodeType>::Epoch: Unpin, CONFIG: Unpin, DaConfig: Unpin, <<T as NodeType>::SignatureKey as SignatureKey>::StakeTableEntry: Unpin, <T as NodeType>::StateSignatureKey: Unpin,

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impl<T, CONFIG, DaConfig> UnwindSafe for RandomizedCommitteeMembers<T, CONFIG, DaConfig>
where <T as NodeType>::SignatureKey: RefUnwindSafe, <T as NodeType>::Epoch: UnwindSafe, CONFIG: UnwindSafe, DaConfig: UnwindSafe, <<T as NodeType>::SignatureKey as SignatureKey>::StakeTableEntry: RefUnwindSafe + UnwindSafe, <T as NodeType>::StateSignatureKey: RefUnwindSafe + UnwindSafe,

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

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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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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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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impl<T> Element for T
where T: Clone + Eq + PartialEq + Hash,

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impl<T> Element for T
where T: Clone + Eq + PartialEq + Hash,

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impl<T> ErasedDestructor for T
where T: 'static,