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Remove leader_schedule_offset public method 

Also,

* Rename the private variable to include units.
* Better doc
This commit is contained in:
Greg Fitzgerald 2019-02-21 12:29:47 -07:00 committed by Grimes
parent 32caa55d67
commit f76ac94d70
1 changed files with 9 additions and 13 deletions
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22
runtime/src/bank.rs
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@ -101,8 +101,9 @@ pub struct Bank {
/// The number of slots in each epoch.
slots_per_epoch: u64,
// The number of slots until the next leader schedule activates.
leader_schedule_offset: u64,
// A number of slots before slot_index 0. Used to generate the current
// epoch's leader schedule.
leader_schedule_slot_offset: u64,
}
impl Default for Bank {
@ -115,7 +116,7 @@ impl Default for Bank {
hash: RwLock::<Hash>::default(),
ticks_per_slot: DEFAULT_TICKS_PER_SLOT,
slots_per_epoch: DEFAULT_SLOTS_PER_EPOCH,
leader_schedule_offset: DEFAULT_SLOTS_PER_EPOCH,
leader_schedule_slot_offset: DEFAULT_SLOTS_PER_EPOCH,
}
}
}
@ -134,7 +135,7 @@ impl Bank {
bank.last_id_queue = RwLock::new(parent.last_id_queue.read().unwrap().clone());
bank.ticks_per_slot = parent.ticks_per_slot;
bank.slots_per_epoch = parent.slots_per_epoch;
bank.leader_schedule_offset = parent.leader_schedule_offset;
bank.leader_schedule_slot_offset = parent.leader_schedule_slot_offset;
bank.parent = Some(parent.clone());
if *parent.hash.read().unwrap() == Hash::default() {
@ -673,16 +674,11 @@ impl Bank {
self.slots_per_epoch
}
/// Return the number of slots until the next leader schedule activates.
pub fn leader_schedule_offset(&self) -> u64 {
self.leader_schedule_offset
}
/// Return the checkpointed bank that should be used to generate a leader schedule.
/// Return None if a sufficiently old bank checkpoint doesn't exist.
pub fn leader_schedule_bank(&self) -> Option<Arc<Bank>> {
let epoch_slot_height = self.slot_height() - self.slot_index();
let expected = epoch_slot_height.saturating_sub(self.leader_schedule_offset);
let expected = epoch_slot_height.saturating_sub(self.leader_schedule_slot_offset);
self.parents()
.into_iter()
.find(|bank| bank.slot_height() <= expected)
@ -1027,11 +1023,11 @@ mod tests {
assert!(bank.leader_schedule_bank().is_none());
let bank = Bank::new_from_parent(&Arc::new(bank));
let ticks_per_offset = bank.leader_schedule_offset() * bank.ticks_per_slot();
let ticks_per_offset = bank.leader_schedule_slot_offset * bank.ticks_per_slot();
register_ticks(&bank, ticks_per_offset);
assert_eq!(bank.slot_height(), bank.leader_schedule_offset());
assert_eq!(bank.slot_height(), bank.leader_schedule_slot_offset);
let slot_height = bank.slots_per_epoch() - bank.leader_schedule_offset();
let slot_height = bank.slots_per_epoch() - bank.leader_schedule_slot_offset;
let bank = Bank::new_from_parent(&Arc::new(bank));
assert_eq!(
bank.leader_schedule_bank().unwrap().slot_height(),