50 lines
1.4 KiB
Rust
50 lines
1.4 KiB
Rust
|
use types::{AttestationData, FreeAttestation, Signature, Slot};
|
||
|
|
|
||
|
|
#[derive(Debug, PartialEq, Clone)]
|
||
|
|
pub enum BeaconNodeError {
|
||
|
|
RemoteFailure(String),
|
||
|
|
DecodeFailure,
|
||
|
|
}
|
||
|
|
|
||
|
|
#[derive(Debug, PartialEq, Clone)]
|
||
|
|
pub enum PublishOutcome {
|
||
|
|
ValidAttestation,
|
||
|
|
InvalidAttestation(String),
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Defines the methods required to produce and publish blocks on a Beacon Node.
|
||
|
|
pub trait BeaconNode: Send + Sync {
|
||
|
|
fn produce_attestation_data(
|
||
|
|
&self,
|
||
|
|
slot: Slot,
|
||
|
|
shard: u64,
|
||
|
|
) -> Result<Option<AttestationData>, BeaconNodeError>;
|
||
|
|
|
||
|
|
fn publish_attestation_data(
|
||
|
|
&self,
|
||
|
|
free_attestation: FreeAttestation,
|
||
|
|
) -> Result<PublishOutcome, BeaconNodeError>;
|
||
|
|
}
|
||
|
|
|
||
|
|
#[derive(Debug, PartialEq, Clone)]
|
||
|
|
pub enum DutiesReaderError {
|
||
|
|
UnknownValidator,
|
||
|
|
UnknownEpoch,
|
||
|
|
EpochLengthIsZero,
|
||
|
|
Poisoned,
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Informs a validator of their duties (e.g., block production).
|
||
|
|
pub trait DutiesReader: Send + Sync {
|
||
|
|
/// Returns `Some(shard)` if this slot is an attestation slot. Otherwise, returns `None.`
|
||
|
|
fn attestation_shard(&self, slot: Slot) -> Result<Option<u64>, DutiesReaderError>;
|
||
|
|
|
||
|
|
/// Returns `Some(shard)` if this slot is an attestation slot. Otherwise, returns `None.`
|
||
|
|
fn validator_index(&self) -> Option<u64>;
|
||
|
|
}
|
||
|
|
|
||
|
|
/// Signs message using an internally-maintained private key.
|
||
|
|
pub trait Signer {
|
||
|
|
fn sign_attestation_message(&self, message: &[u8]) -> Option<Signature>;
|
||
|
|
}
|