Strict count unrealized (#3522)

## Issue Addressed

Add a flag that can increase count unrealized strictness, defaults to false

## Proposed Changes

Please list or describe the changes introduced by this PR.

## Additional Info

Please provide any additional information. For example, future considerations
or information useful for reviewers.


Co-authored-by: realbigsean <seananderson33@gmail.com>
Co-authored-by: sean <seananderson33@gmail.com>
This commit is contained in:
realbigsean
2022-09-05 04:50:47 +00:00
parent f13dd04f42
commit cae40731a2
17 changed files with 164 additions and 30 deletions

View File

@@ -118,6 +118,24 @@ impl Default for ProposerBoost {
}
}
/// Indicate whether we should strictly count unrealized justification/finalization votes.
#[derive(Default, PartialEq, Eq, Debug, Serialize, Deserialize, Copy, Clone)]
pub enum CountUnrealizedFull {
True,
#[default]
False,
}
impl From<bool> for CountUnrealizedFull {
fn from(b: bool) -> Self {
if b {
CountUnrealizedFull::True
} else {
CountUnrealizedFull::False
}
}
}
#[derive(PartialEq, Debug, Serialize, Deserialize, Clone)]
pub struct ProtoArray {
/// Do not attempt to prune the tree unless it has at least this many nodes. Small prunes
@@ -128,6 +146,7 @@ pub struct ProtoArray {
pub nodes: Vec<ProtoNode>,
pub indices: HashMap<Hash256, usize>,
pub previous_proposer_boost: ProposerBoost,
pub count_unrealized_full: CountUnrealizedFull,
}
impl ProtoArray {
@@ -878,12 +897,14 @@ impl ProtoArray {
return false;
}
let genesis_epoch = Epoch::new(0);
let checkpoint_match_predicate =
|node_justified_checkpoint: Checkpoint, node_finalized_checkpoint: Checkpoint| {
let correct_justified = node_justified_checkpoint == self.justified_checkpoint
|| self.justified_checkpoint.epoch == Epoch::new(0);
|| self.justified_checkpoint.epoch == genesis_epoch;
let correct_finalized = node_finalized_checkpoint == self.finalized_checkpoint
|| self.finalized_checkpoint.epoch == Epoch::new(0);
|| self.finalized_checkpoint.epoch == genesis_epoch;
correct_justified && correct_finalized
};
@@ -898,13 +919,26 @@ impl ProtoArray {
node.justified_checkpoint,
node.finalized_checkpoint,
) {
if node.slot.epoch(E::slots_per_epoch()) < current_slot.epoch(E::slots_per_epoch()) {
checkpoint_match_predicate(
unrealized_justified_checkpoint,
unrealized_finalized_checkpoint,
)
let current_epoch = current_slot.epoch(E::slots_per_epoch());
// If previous epoch is justified, pull up all tips to at least the previous epoch
if CountUnrealizedFull::True == self.count_unrealized_full
&& (current_epoch > genesis_epoch
&& self.justified_checkpoint.epoch + 1 == current_epoch)
{
unrealized_justified_checkpoint.epoch + 1 >= current_epoch
// If previous epoch is not justified, pull up only tips from past epochs up to the current epoch
} else {
checkpoint_match_predicate(justified_checkpoint, finalized_checkpoint)
// If block is from a previous epoch, filter using unrealized justification & finalization information
if node.slot.epoch(E::slots_per_epoch()) < current_epoch {
checkpoint_match_predicate(
unrealized_justified_checkpoint,
unrealized_finalized_checkpoint,
)
// If block is from the current epoch, filter using the head state's justification & finalization information
} else {
checkpoint_match_predicate(justified_checkpoint, finalized_checkpoint)
}
}
} else if let (Some(justified_checkpoint), Some(finalized_checkpoint)) =
(node.justified_checkpoint, node.finalized_checkpoint)