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Perform key share amortization on-chain to avoid discrepancies

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This commit is contained in:
Luke Parker
2024-03-23 23:30:51 -04:00
parent 7408e26781
commit 4cacce5e55
3 changed files with 23 additions and 26 deletions
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27
substrate/validator-sets/pallet/src/lib.rs
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@@ -363,21 +363,26 @@ pub mod pallet {
let allocation_per_key_share = Self::allocation_per_key_share(network).unwrap().0;
let mut iter = SortedAllocationsIter::<T>::new(network);
let mut participants = vec![];
let mut key_shares = 0;
let mut total_stake = 0;
while key_shares < u64::from(MAX_KEY_SHARES_PER_SET) {
let Some((key, amount)) = iter.next() else { break };
{
let mut iter = SortedAllocationsIter::<T>::new(network);
let mut key_shares = 0;
while key_shares < u64::from(MAX_KEY_SHARES_PER_SET) {
let Some((key, amount)) = iter.next() else { break };
let these_key_shares = amount.0 / allocation_per_key_share;
InSet::<T>::set(network, key, Some(these_key_shares));
participants.push((key, these_key_shares));
let these_key_shares =
(amount.0 / allocation_per_key_share).min(u64::from(MAX_KEY_SHARES_PER_SET));
participants.push((key, these_key_shares));
// This can technically set key_shares to a value exceeding MAX_KEY_SHARES_PER_SET
// Off-chain, the key shares per validator will be accordingly adjusted
key_shares += these_key_shares;
total_stake += amount.0;
key_shares += these_key_shares;
total_stake += amount.0;
}
amortize_excess_key_shares(&mut participants);
}
for (key, shares) in &participants {
InSet::<T>::set(network, key, Some(*shares));
}
TotalAllocatedStake::<T>::set(network, Some(Amount(total_stake)));