Files
lighthouse/eth2/utils/slot_clock/src/lib.rs
Paul Hauner 114067bb50 Start heavy refactor of validator client
- Block production is working
2019-11-22 01:22:05 +11:00

35 lines
1.1 KiB
Rust

#[macro_use]
extern crate lazy_static;
mod metrics;
mod system_time_slot_clock;
mod testing_slot_clock;
use std::time::Duration;
pub use crate::system_time_slot_clock::SystemTimeSlotClock;
pub use crate::testing_slot_clock::TestingSlotClock;
pub use metrics::scrape_for_metrics;
pub use types::Slot;
/// A clock that reports the current slot.
///
/// The clock is not required to be monotonically increasing and may go backwards.
pub trait SlotClock: Send + Sync + Sized {
/// Creates a new slot clock where the first slot is `genesis_slot`, genesis occured
/// `genesis_duration` after the `UNIX_EPOCH` and each slot is `slot_duration` apart.
fn new(genesis_slot: Slot, genesis_duration: Duration, slot_duration: Duration) -> Self;
/// Returns the slot at this present time.
fn now(&self) -> Option<Slot>;
/// Returns the duration between slots
fn slot_duration(&self) -> Duration;
/// Returns the duration until the next slot.
fn duration_to_next_slot(&self) -> Option<Duration>;
/// Returns the duration until the first slot of the next epoch.
fn duration_to_next_epoch(&self, slots_per_epoch: u64) -> Option<Duration>;
}