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Operation pool: prune attestations

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Michael Sproul 2019-03-20 10:47:19 +11:00
parent a8224aa4ec
commit 9c2dfba843
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1 changed files with 12 additions and 2 deletions
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14
eth2/operation_pool/src/lib.rs
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@ -161,8 +161,18 @@ impl OperationPool {
.collect() .collect()
} }
pub fn prune_attestations(&self, _finalized_state: &BeaconState, _spec: &ChainSpec) { /// Remove attestations which are too old to be included in a block.
// TODO // TODO: we could probably prune other attestations here:
// - ones that are completely covered by attestations included in the state
// - maybe ones invalidated by the confirmation of one fork over another
pub fn prune_attestations(&mut self, finalized_state: &BeaconState, spec: &ChainSpec) {
self.attestations.retain(|_, attestations| {
// All the attestations in this bucket have the same data, so we only need to
// check the first one.
attestations.first().map_or(false, |att| {
finalized_state.slot < att.data.slot + spec.slots_per_epoch
})
});
} }
/// Add a deposit to the pool. /// Add a deposit to the pool.