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R4R: mint use total supply instead of power #3654

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Feb 15, 2019
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R4R: mint use total supply instead of power #3654

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4d143eb
mint supply fix power -> total supply
rigelrozanski Feb 14, 2019
8bdf200
pending update
rigelrozanski Feb 14, 2019
2e6bee9
comment fix
rigelrozanski Feb 14, 2019
710d843
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cwgoes Feb 15, 2019
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1 change: 1 addition & 0 deletions PENDING.md
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Expand Up @@ -61,5 +61,6 @@ BUG FIXES
* Gaia

* SDK
* \#3646 `x/mint` now uses total token supply instead of total bonded tokens to calculate inflation

* Tendermint
3 changes: 2 additions & 1 deletion types/stake.go → types/staking.go
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Expand Up @@ -100,7 +100,8 @@ type ValidatorSet interface {

Validator(Context, ValAddress) Validator // get a particular validator by operator address
ValidatorByConsAddr(Context, ConsAddress) Validator // get a particular validator by consensus address
TotalPower(Context) Int // total power of the validator set
TotalBondedTokens(Context) Int // total bonded tokens within the validator set
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interested in the rationale behind the interface change here.

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Power refers to Tendermint Power which is intended to be used nearly nowhere besides for Tendermint (and slashing which needs to interface with tendermint responses) - this interface didn't make a difference pre-Tendermint Power Reduction (#3400) but now these two things are intended to mean very different values

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Agreed with @rigelrozanski - this is much clearer, thanks

TotalTokens(Context) Int // total token supply

// slash the validator and delegators of the validator, specifying offence height, offence power, and slash fraction
Slash(Context, ConsAddress, int64, int64, Dec)
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1 change: 0 additions & 1 deletion x/distribution/types/expected_keepers.go
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Expand Up @@ -9,7 +9,6 @@ type StakingKeeper interface {
Delegation(ctx sdk.Context, delAddr sdk.AccAddress, valAddr sdk.ValAddress) sdk.Delegation
Validator(ctx sdk.Context, valAddr sdk.ValAddress) sdk.Validator
ValidatorByConsAddr(ctx sdk.Context, consAddr sdk.ConsAddress) sdk.Validator
TotalPower(ctx sdk.Context) sdk.Int
GetLastTotalPower(ctx sdk.Context) sdk.Int
GetLastValidatorPower(ctx sdk.Context, valAddr sdk.ValAddress) int64

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4 changes: 2 additions & 2 deletions x/gov/tally.go
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Expand Up @@ -103,11 +103,11 @@ func tally(ctx sdk.Context, keeper Keeper, proposal Proposal) (passes bool, tall

// TODO: Upgrade the spec to cover all of these cases & remove pseudocode.
// If there is no staked coins, the proposal fails
if keeper.vs.TotalPower(ctx).IsZero() {
if keeper.vs.TotalBondedTokens(ctx).IsZero() {
return false, tallyResults
}
// If there is not enough quorum of votes, the proposal fails
percentVoting := totalVotingPower.Quo(sdk.NewDecFromInt(keeper.vs.TotalPower(ctx)))
percentVoting := totalVotingPower.Quo(sdk.NewDecFromInt(keeper.vs.TotalBondedTokens(ctx)))
if percentVoting.LT(tallyParams.Quorum) {
return false, tallyResults
}
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2 changes: 1 addition & 1 deletion x/mint/abci_app.go
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Expand Up @@ -12,7 +12,7 @@ func BeginBlocker(ctx sdk.Context, k Keeper) {
params := k.GetParams(ctx)

// recalculate inflation rate
totalSupply := k.sk.TotalPower(ctx)
totalSupply := k.sk.TotalTokens(ctx)
bondedRatio := k.sk.BondedRatio(ctx)
minter.Inflation = minter.NextInflationRate(params, bondedRatio)
minter.AnnualProvisions = minter.NextAnnualProvisions(params, totalSupply)
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2 changes: 1 addition & 1 deletion x/mint/expected_keepers.go
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Expand Up @@ -6,7 +6,7 @@ import (

// expected staking keeper
type StakingKeeper interface {
TotalPower(ctx sdk.Context) sdk.Int
TotalTokens(ctx sdk.Context) sdk.Int
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BondedRatio(ctx sdk.Context) sdk.Dec
InflateSupply(ctx sdk.Context, newTokens sdk.Int)
}
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12 changes: 9 additions & 3 deletions x/staking/keeper/alias_functions.go
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Expand Up @@ -87,13 +87,19 @@ func (k Keeper) ValidatorByConsAddr(ctx sdk.Context, addr sdk.ConsAddress) sdk.V
return val
}

// total power from the bond (not last, but current)
func (k Keeper) TotalPower(ctx sdk.Context) sdk.Int {
// total staking tokens supply which is bonded
func (k Keeper) TotalBondedTokens(ctx sdk.Context) sdk.Int {
pool := k.GetPool(ctx)
return pool.BondedTokens
}

// total power from the bond
// total staking tokens supply bonded and unbonded
func (k Keeper) TotalTokens(ctx sdk.Context) sdk.Int {
pool := k.GetPool(ctx)
return pool.TokenSupply()
}

// the fraction of the staking tokens which are currently bonded
func (k Keeper) BondedRatio(ctx sdk.Context) sdk.Dec {
pool := k.GetPool(ctx)
return pool.BondedRatio()
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2 changes: 1 addition & 1 deletion x/staking/types/validator.go
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Expand Up @@ -416,7 +416,7 @@ func (v Validator) BondedTokens() sdk.Int {
}

// get the Tendermint Power
// a reduction of 10^9 from validator tokens is applied
// a reduction of 10^6 from validator tokens is applied
func (v Validator) TendermintPower() int64 {
if v.Status == sdk.Bonded {
return v.PotentialTendermintPower()
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