De-duplicate fetching intermediate accounts (#7411)

* De-duplicate fetching intermediate accounts

* Fix build

* De-duplicate BondDenom fetch

(cherry picked from commit fda7971)

x/incentives/keeper/distribute.go

@@ -799,7 +799,7 @@ func (k Keeper) Distribute(ctx sdk.Context, gauges []types.Gauge) (sdk.Coins, er
 
 	locksByDenomCache := make(map[string][]lockuptypes.PeriodLock)
 	totalDistributedCoins := sdk.NewCoins()
-	scratchSlice := make([]*lockuptypes.PeriodLock, 0, 10000)
+	scratchSlice := make([]*lockuptypes.PeriodLock, 0, 50000)
 
 	for _, gauge := range gauges {
 		var gaugeDistributedCoins sdk.Coins

x/superfluid/keeper/epoch.go

@@ -27,9 +27,10 @@ func (k Keeper) AfterEpochStartBeginBlock(ctx sdk.Context) {
 	// the supplied epoch number is wrong at time of commit. hence we get from the info.
 	curEpoch := k.ek.GetEpochInfo(ctx, k.GetEpochIdentifier(ctx)).CurrentEpoch
 
+	accs := k.GetAllIntermediaryAccounts(ctx)
 	// Move delegation rewards to perpetual gauge
 	ctx.Logger().Info("Move delegation rewards to gauges")
-	k.MoveSuperfluidDelegationRewardToGauges(ctx)
+	k.MoveSuperfluidDelegationRewardToGauges(ctx, accs)
 
 	ctx.Logger().Info("Distribute Superfluid gauges")
 	//nolint:errcheck
@@ -56,11 +57,11 @@ func (k Keeper) AfterEpochStartBeginBlock(ctx sdk.Context) {
 	// Refresh intermediary accounts' delegation amounts,
 	// making staking rewards follow the updated multiplier numbers.
 	ctx.Logger().Info("Refresh all superfluid delegation amounts")
-	k.RefreshIntermediaryDelegationAmounts(ctx)
+	k.RefreshIntermediaryDelegationAmounts(ctx, accs)
 }
 
-func (k Keeper) MoveSuperfluidDelegationRewardToGauges(ctx sdk.Context) {
-	accs := k.GetAllIntermediaryAccounts(ctx)
+func (k Keeper) MoveSuperfluidDelegationRewardToGauges(ctx sdk.Context, accs []types.SuperfluidIntermediaryAccount) {
+	bondDenom := k.sk.BondDenom(ctx)
 	for _, acc := range accs {
 		addr := acc.GetAccAddress()
 		valAddr, err := sdk.ValAddressFromBech32(acc.ValAddr)
@@ -74,7 +75,8 @@ func (k Keeper) MoveSuperfluidDelegationRewardToGauges(ctx sdk.Context) {
 			_, err := k.ck.WithdrawDelegationRewards(cacheCtx, addr, valAddr)
 			if errors.Is(err, distributiontypes.ErrEmptyDelegationDistInfo) {
 				ctx.Logger().Debug("no swaps occurred in this pool between last epoch and this epoch")
-				return nil
+			} else if err != nil {
+				return err
 			}
 			return err
 		})
@@ -83,7 +85,6 @@ func (k Keeper) MoveSuperfluidDelegationRewardToGauges(ctx sdk.Context) {
 		_ = osmoutils.ApplyFuncIfNoError(ctx, func(cacheCtx sdk.Context) error {
 			// Note! We only send the bond denom (osmo), to avoid attack vectors where people
 			// send many different denoms to the intermediary account, and make a resource exhaustion attack on end block.
-			bondDenom := k.sk.BondDenom(cacheCtx)
 			balance := k.bk.GetBalance(cacheCtx, addr, bondDenom)
 			if balance.IsZero() {
 				return nil

x/superfluid/keeper/epoch_test.go

@@ -215,7 +215,8 @@ func (s *KeeperTestSuite) TestMoveSuperfluidDelegationRewardToGauges() {
 			}
 
 			// move intermediary account delegation rewards to gauges
-			s.App.SuperfluidKeeper.MoveSuperfluidDelegationRewardToGauges(s.Ctx)
+			accs := s.App.SuperfluidKeeper.GetAllIntermediaryAccounts(s.Ctx)
+			s.App.SuperfluidKeeper.MoveSuperfluidDelegationRewardToGauges(s.Ctx, accs)
 
 			// check invariant is fine
 			reason, broken := keeper.AllInvariants(*s.App.SuperfluidKeeper)(s.Ctx)
@@ -292,7 +293,8 @@ func (s *KeeperTestSuite) TestDistributeSuperfluidGauges() {
 				}
 
 				// move intermediary account delegation rewards to gauges
-				s.App.SuperfluidKeeper.MoveSuperfluidDelegationRewardToGauges(s.Ctx)
+				accs := s.App.SuperfluidKeeper.GetAllIntermediaryAccounts(s.Ctx)
+				s.App.SuperfluidKeeper.MoveSuperfluidDelegationRewardToGauges(s.Ctx, accs)
 
 				// move gauges to active gauge by declaring epoch end
 				s.Ctx = s.Ctx.WithBlockTime(s.Ctx.BlockTime().Add(time.Minute))

x/superfluid/keeper/hooks.go

@@ -115,5 +115,6 @@ func (h Hooks) AfterValidatorSlashed(ctx sdk.Context, valAddr sdk.ValAddress, in
 	if slashFactor.IsZero() {
 		return
 	}
-	h.k.RefreshIntermediaryDelegationAmounts(ctx)
+	accs := h.k.GetAllIntermediaryAccounts(ctx)
+	h.k.RefreshIntermediaryDelegationAmounts(ctx, accs)
 }

x/superfluid/keeper/stake.go

@@ -45,9 +45,8 @@ func (k Keeper) GetExpectedDelegationAmount(ctx sdk.Context, acc types.Superflui
 // RefreshIntermediaryDelegationAmounts refreshes the amount of delegation for all intermediary accounts.
 // This method includes minting new osmo if the refreshed delegation amount has increased, and
 // instantly undelegating and burning if the refreshed delegation has decreased.
-func (k Keeper) RefreshIntermediaryDelegationAmounts(ctx sdk.Context) {
+func (k Keeper) RefreshIntermediaryDelegationAmounts(ctx sdk.Context, accs []types.SuperfluidIntermediaryAccount) {
 	// iterate over all intermedairy accounts - every (denom, validator) pair
-	accs := k.GetAllIntermediaryAccounts(ctx)
 	for _, acc := range accs {
 		mAddr := acc.GetAccAddress()
 

x/superfluid/keeper/stake_test.go

@@ -975,7 +975,8 @@ func (s *KeeperTestSuite) TestRefreshIntermediaryDelegationAmounts() {
 				s.App.SuperfluidKeeper.SetOsmoEquivalentMultiplier(s.Ctx, 2, denom, multiplier)
 			}
 
-			s.App.SuperfluidKeeper.RefreshIntermediaryDelegationAmounts(s.Ctx)
+			accs := s.App.SuperfluidKeeper.GetAllIntermediaryAccounts(s.Ctx)
+			s.App.SuperfluidKeeper.RefreshIntermediaryDelegationAmounts(s.Ctx, accs)
 
 			originalMultiplier := osmomath.NewDec(20)
 			for interAccIndex, intermediaryAcc := range intermediaryAccs {
@@ -1022,7 +1023,8 @@ func (s *KeeperTestSuite) TestRefreshIntermediaryDelegationAmounts() {
 			}
 
 			// refresh intermediary account delegations
-			s.App.SuperfluidKeeper.RefreshIntermediaryDelegationAmounts(s.Ctx)
+			accs = s.App.SuperfluidKeeper.GetAllIntermediaryAccounts(s.Ctx)
+			s.App.SuperfluidKeeper.RefreshIntermediaryDelegationAmounts(s.Ctx, accs)
 
 			for _, intermediaryAcc := range intermediaryAccs {
 				// check unbonded amount is removed after refresh operation