ab_client_consensus_common/lib.rs
1pub mod consensus_parameters;
2
3use ab_core_primitives::block::{BlockNumber, BlockTimestamp};
4use ab_core_primitives::pot::{SlotDuration, SlotNumber};
5use ab_core_primitives::segments::HistorySize;
6
7/// Proof-of-time consensus constants
8#[derive(Debug, PartialEq, Eq, Clone, Copy)]
9pub struct PotConsensusConstants {
10 /// Interval, in blocks, between blockchain entropy injection into proof of time chain.
11 pub entropy_injection_interval: BlockNumber,
12 /// Interval, in entropy injection intervals, where to take entropy for injection from.
13 pub entropy_injection_lookback_depth: u8,
14 /// Delay after block, in slots, when entropy injection takes effect.
15 pub entropy_injection_delay: SlotNumber,
16}
17
18/// Consensus constants
19#[derive(Debug, PartialEq, Eq, Clone, Copy)]
20pub struct ConsensusConstants {
21 /// Depth `K` after which a block enters the recorded history
22 pub confirmation_depth_k: BlockNumber,
23 /// Number of slots between slot arrival and when corresponding block can be produced
24 pub block_authoring_delay: SlotNumber,
25 /// Proof-of-time consensus constants
26 pub pot: PotConsensusConstants,
27 /// Era duration in blocks
28 pub era_duration: BlockNumber,
29 /// Slot probability
30 pub slot_probability: (u64, u64),
31 /// The slot duration in milliseconds
32 pub slot_duration: SlotDuration,
33 /// Number of latest archived segments that are considered "recent history"
34 pub recent_segments: HistorySize,
35 /// Fraction of pieces from the "recent history" (`recent_segments`) in each sector
36 pub recent_history_fraction: (HistorySize, HistorySize),
37 /// Minimum lifetime of a plotted sector, measured in archived segment
38 pub min_sector_lifetime: HistorySize,
39 /// Max block timestamp drift allowed
40 pub max_block_timestamp_drift: BlockTimestamp,
41}