keeper

func (Keeper) AcceptList ¶

func (k Keeper) AcceptList(ctx sdk.Context) (res types.DenomList)

AcceptList returns the denom list that can be activated

func (Keeper) AddHistoricPrice ¶

func (k Keeper) AddHistoricPrice(
	ctx sdk.Context,
	denom string,
	exchangeRate sdk.Dec,
)

AddHistoricPrice adds the historic price of a denom at the current block height.

func (Keeper) AllHistoricPrices ¶ added in v0.1.2

func (k Keeper) AllHistoricPrices(ctx sdk.Context) types.PriceStamps

AllHistoricPrices is a helper function that collects and returns all median prices using the IterateAllHistoricPrices iterator

func (Keeper) AllMedianDeviationPrices ¶ added in v0.1.2

func (k Keeper) AllMedianDeviationPrices(ctx sdk.Context) types.PriceStamps

AllMedianDeviationPrices is a helper function that collects and returns all median prices using the IterateAllMedianDeviationPrices iterator

func (Keeper) AllMedianPrices ¶ added in v0.1.2

func (k Keeper) AllMedianPrices(ctx sdk.Context) types.PriceStamps

AllMedianPrices is a helper function that collects and returns all median prices using the IterateAllMedianPrices iterator

func (Keeper) AverageOfHistoricMedians ¶

func (k Keeper) AverageOfHistoricMedians(
	ctx sdk.Context,
	denom string,
	numStamps uint64,
) (sdk.Dec, uint32, error)

AverageOfHistoricMedians calculates and returns the average of the last stampNum historic medians as well as the amount of medians used to calculate that average. If no medians are available, all returns are zero and error is nil.

func (Keeper) CalcAndSetHistoricMedian ¶

func (k Keeper) CalcAndSetHistoricMedian(
	ctx sdk.Context,
	denom string,
) error

CalcAndSetHistoricMedian uses all the historic prices of a given denom to calculate its median price at the current block and set it to the store. It will also call setMedianDeviation with the calculated median.

func (Keeper) ClearBallots ¶

func (k Keeper) ClearBallots(ctx sdk.Context, votePeriod uint64)

ClearBallots clears all tallied prevotes and votes from the store.

func (Keeper) ClearExchangeRates ¶

func (k Keeper) ClearExchangeRates(ctx sdk.Context)

func (Keeper) ClearParamUpdatePlan ¶ added in v0.2.1

func (k Keeper) ClearParamUpdatePlan(ctx sdk.Context, planHeight uint64) error

ClearParamUpdatePlan will clear an upcoming param update plan if one exists and return an error if one isn't found.

func (Keeper) CurrencyDeviationThresholds ¶ added in v0.2.2

func (k Keeper) CurrencyDeviationThresholds(ctx sdk.Context) (res types.CurrencyDeviationThresholdList)

CurrencyDeviationThresholds returns the current Currency Deviation Thesholds the price feeder will query when starting up.

func (Keeper) CurrencyPairProviders ¶ added in v0.2.2

func (k Keeper) CurrencyPairProviders(ctx sdk.Context) (res types.CurrencyPairProvidersList)

CurrencyPairProviders returns the current Currency Pair Providers the price feeder will query when starting up.

func (Keeper) DeleteAggregateExchangeRatePrevote ¶

func (k Keeper) DeleteAggregateExchangeRatePrevote(ctx sdk.Context, voter sdk.ValAddress)

DeleteAggregateExchangeRatePrevote deletes an oracle prevote from the store.

func (Keeper) DeleteAggregateExchangeRateVote ¶

func (k Keeper) DeleteAggregateExchangeRateVote(ctx sdk.Context, voter sdk.ValAddress)

DeleteAggregateExchangeRateVote deletes an oracle prevote from the store.

func (Keeper) DeleteHistoricMedian ¶

func (k Keeper) DeleteHistoricMedian(
	ctx sdk.Context,
	denom string,
	blockNum uint64,
)

DeleteHistoricMedian deletes a given denom's median price at a given block.

func (Keeper) DeleteHistoricMedianDeviation ¶

func (k Keeper) DeleteHistoricMedianDeviation(
	ctx sdk.Context,
	denom string,
	blockNum uint64,
)

DeleteHistoricMedianDeviation deletes a given denom's standard deviation around its median price at a given block.

func (Keeper) DeleteHistoricPrice ¶

func (k Keeper) DeleteHistoricPrice(
	ctx sdk.Context,
	denom string,
	blockNum uint64,
)

DeleteHistoricPrice deletes the historic price of a denom at a given block.

func (Keeper) DeleteMissCounter ¶

func (k Keeper) DeleteMissCounter(ctx sdk.Context, operator sdk.ValAddress)

DeleteMissCounter removes miss counter for the validator.

func (Keeper) ExecuteParamUpdatePlan ¶ added in v0.2.1

func (k Keeper) ExecuteParamUpdatePlan(ctx sdk.Context, plan types.ParamUpdatePlan) error

ExecuteParamUpdatePlan will execute a given param update plan and emit a param update event.

func (Keeper) GetAggregateExchangeRatePrevote ¶

func (k Keeper) GetAggregateExchangeRatePrevote(
	ctx sdk.Context,
	voter sdk.ValAddress,
) (types.AggregateExchangeRatePrevote, error)

GetAggregateExchangeRatePrevote retrieves an oracle prevote from the store.

func (Keeper) GetAggregateExchangeRateVote ¶

func (k Keeper) GetAggregateExchangeRateVote(
	ctx sdk.Context,
	voter sdk.ValAddress,
) (types.AggregateExchangeRateVote, error)

GetAggregateExchangeRateVote retrieves an oracle prevote from the store.

func (Keeper) GetExchangeRate ¶

func (k Keeper) GetExchangeRate(ctx sdk.Context, symbol string) (sdk.Dec, error)

GetExchangeRate gets the consensus exchange rate of USD denominated in the denom asset from the store.

func (Keeper) GetExchangeRateBase ¶

func (k Keeper) GetExchangeRateBase(ctx sdk.Context, denom string) (sdk.Dec, error)

GetExchangeRateBase gets the consensus exchange rate of an asset in the base denom (e.g. ATOM -> uatom)

func (Keeper) GetExponent ¶ added in v0.3.0

func (k Keeper) GetExponent(ctx sdk.Context, denom string) (uint32, error)

func (Keeper) GetFeederDelegation ¶

func (k Keeper) GetFeederDelegation(ctx sdk.Context, vAddr sdk.ValAddress) (sdk.AccAddress, error)

GetFeederDelegation gets the account address to which the validator operator delegated oracle vote rights.

func (Keeper) GetMissCounter ¶

func (k Keeper) GetMissCounter(ctx sdk.Context, operator sdk.ValAddress) uint64

GetMissCounter retrieves the # of vote periods missed in this oracle slash window.

func (Keeper) GetOracleAccount ¶

func (k Keeper) GetOracleAccount(ctx sdk.Context) authtypes.ModuleAccountI

GetOracleAccount returns oracle ModuleAccount.

func (Keeper) GetParamUpdatePlans ¶ added in v0.2.2

func (k Keeper) GetParamUpdatePlans(ctx sdk.Context) (plans []types.ParamUpdatePlan)

GetParamUpdatePlans returns all the param update plans in the store.

func (Keeper) GetParams ¶

func (k Keeper) GetParams(ctx sdk.Context) (params types.Params)

GetParams returns the total set of oracle parameters.

func (Keeper) GetRewardPool ¶

func (k Keeper) GetRewardPool(ctx sdk.Context, denom string) sdk.Coin

GetRewardPool retrieves the balance of the oracle module account.

func (Keeper) GetValidatorRewardSet ¶ added in v0.1.4

func (k Keeper) GetValidatorRewardSet(ctx sdk.Context) types.ValidatorRewardSet

CurrentValidatorRewardSet returns the latest ValidatorRewardSet in the store.

func (Keeper) HasAggregateExchangeRatePrevote ¶

func (k Keeper) HasAggregateExchangeRatePrevote(
	ctx sdk.Context,
	voter sdk.ValAddress,
) bool

HasAggregateExchangeRatePrevote checks if a validator has an existing prevote.

func (Keeper) HistoricDeviations ¶ added in v0.3.0

func (k Keeper) HistoricDeviations(
	ctx sdk.Context,
	denom string,
	numStamps uint64,
) types.PriceStamps

func (Keeper) HistoricMedianDeviation ¶

func (k Keeper) HistoricMedianDeviation(
	ctx sdk.Context,
	denom string,
) (*types.PriceStamp, error)

HistoricMedianDeviation returns a given denom's most recently stamped standard deviation around its median price at a given block.

func (Keeper) HistoricMedians ¶

func (k Keeper) HistoricMedians(
	ctx sdk.Context,
	denom string,
	numStamps uint64,
) types.PriceStamps

HistoricMedians returns a list of a given denom's last numStamps medians.

func (Keeper) HistoricStampPeriod ¶

func (k Keeper) HistoricStampPeriod(ctx sdk.Context) (res uint64)

HistoricStampPeriod returns the amount of blocks the oracle module waits before recording a new historic price.

func (*Keeper) IsPeriodLastBlock ¶ added in v0.1.2

func (k *Keeper) IsPeriodLastBlock(ctx sdk.Context, blocksPerPeriod uint64) bool

IsPeriodLastBlock returns true if we are at the last block of the period

func (Keeper) IterateAggregateExchangeRatePrevotes ¶

func (k Keeper) IterateAggregateExchangeRatePrevotes(
	ctx sdk.Context,
	handler func(sdk.ValAddress, types.AggregateExchangeRatePrevote) bool,
)

IterateAggregateExchangeRatePrevotes iterates rate over prevotes in the store

func (Keeper) IterateAggregateExchangeRateVotes ¶

func (k Keeper) IterateAggregateExchangeRateVotes(
	ctx sdk.Context,
	handler IterateExchangeRateVote,
)

IterateAggregateExchangeRateVotes iterates rate over prevotes in the store.

func (Keeper) IterateAllHistoricPrices ¶

func (k Keeper) IterateAllHistoricPrices(
	ctx sdk.Context,
	handler func(types.PriceStamp) bool,
)

IterateAllHistoricPrices iterates over all historic prices. Iterator stops when exhausting the source, or when the handler returns `true`.

func (Keeper) IterateAllMedianDeviationPrices ¶

func (k Keeper) IterateAllMedianDeviationPrices(
	ctx sdk.Context,
	handler func(types.PriceStamp) bool,
)

IterateAllMedianDeviationPrices iterates over all median deviation prices. Iterator stops when exhausting the source, or when the handler returns `true`.

func (Keeper) IterateAllMedianPrices ¶

func (k Keeper) IterateAllMedianPrices(
	ctx sdk.Context,
	handler func(types.PriceStamp) bool,
)

IterateAllMedianPrices iterates over all median prices. Iterator stops when exhausting the source, or when the handler returns `true`.

func (Keeper) IterateExchangeRates ¶

func (k Keeper) IterateExchangeRates(ctx sdk.Context, handler func(string, sdk.Dec) bool)

IterateExchangeRates iterates over USD rates in the store.

func (Keeper) IterateFeederDelegations ¶

func (k Keeper) IterateFeederDelegations(ctx sdk.Context, handler IterateFeederDelegationHandler)

IterateFeederDelegations iterates over the feed delegates and performs a callback function.

func (Keeper) IterateHistoricDeviations ¶ added in v0.3.0

func (k Keeper) IterateHistoricDeviations(
	ctx sdk.Context,
	denom string,
	numStamps uint,
	handler func(types.PriceStamp) bool,
)

IterateHistoricDeviations iterates over medians of a given denom in the store in reverse. Iterator stops when exhausting the source, or when the handler returns `true`.

func (Keeper) IterateHistoricMedians ¶

func (k Keeper) IterateHistoricMedians(
	ctx sdk.Context,
	denom string,
	numStamps uint,
	handler func(types.PriceStamp) bool,
)

IterateHistoricMedians iterates over medians of a given denom in the store in reverse. Iterator stops when exhausting the source, or when the handler returns `true`.

func (Keeper) IterateHistoricPrices ¶

func (k Keeper) IterateHistoricPrices(
	ctx sdk.Context,
	denom string,
	numStamps uint,
	handler func(sdk.Dec) bool,
)

IterateHistoricPrices iterates over historic prices of a given denom in the store in reverse. Iterator stops when exhausting the source, or when the handler returns `true`.

func (Keeper) IterateMissCounters ¶

func (k Keeper) IterateMissCounters(ctx sdk.Context, handler func(sdk.ValAddress, uint64) bool)

IterateMissCounters iterates over the miss counters and performs a callback function.

func (Keeper) IterateParamUpdatePlans ¶ added in v0.2.2

func (k Keeper) IterateParamUpdatePlans(
	ctx sdk.Context,
	handler func(types.ParamUpdatePlan) bool,
)

IterateParamUpdatePlans iterates rate over param update plans in the store

func (Keeper) Logger ¶

func (k Keeper) Logger(ctx sdk.Context) log.Logger

Logger returns a module-specific logger.

func (Keeper) MandatoryList ¶

func (k Keeper) MandatoryList(ctx sdk.Context) (res types.DenomList)

MandatoryList returns the denom list that are mandatory

func (Keeper) MaxOfHistoricMedians ¶

func (k Keeper) MaxOfHistoricMedians(
	ctx sdk.Context,
	denom string,
	numStamps uint64,
) (sdk.Dec, uint32, error)

MaxOfHistoricMedians calculates and returns the maximum value of the last stampNum historic medians as well as the amount of medians used to calculate that maximum. If no medians are available, all returns are zero and error is nil.

func (Keeper) MaximumMedianStamps ¶

func (k Keeper) MaximumMedianStamps(ctx sdk.Context) (res uint64)

MaximumMedianStamps returns the maximum amount of medians the oracle module will hold.

func (Keeper) MaximumPriceStamps ¶

func (k Keeper) MaximumPriceStamps(ctx sdk.Context) (res uint64)

MaximumPriceStamps returns the maximum amount of historic prices the oracle module will hold.

func (Keeper) MedianOfHistoricMedians ¶

func (k Keeper) MedianOfHistoricMedians(
	ctx sdk.Context,
	denom string,
	numStamps uint64,
) (sdk.Dec, uint32, error)

MedianOfHistoricMedians calculates and returns the median of the last stampNum historic medians as well as the amount of medians used to calculate that median. If no medians are available, all returns are zero and error is nil.

func (Keeper) MedianStampPeriod ¶

func (k Keeper) MedianStampPeriod(ctx sdk.Context) (res uint64)

MedianStampPeriod returns the amount blocks the oracle module waits between calculating a new median and standard deviation of that median.

func (Keeper) MinOfHistoricMedians ¶

func (k Keeper) MinOfHistoricMedians(
	ctx sdk.Context,
	denom string,
	numStamps uint64,
) (sdk.Dec, uint32, error)

MinOfHistoricMedians calculates and returns the minimum value of the last stampNum historic medians as well as the amount of medians used to calculate that minimum. If no medians are available, all returns are zero and error is nil.

func (Keeper) MinValidPerWindow ¶

func (k Keeper) MinValidPerWindow(ctx sdk.Context) (res sdk.Dec)

MinValidPerWindow returns the oracle slashing threshold.

func (Keeper) OrganizeBallotByDenom ¶

func (k Keeper) OrganizeBallotByDenom(
	ctx sdk.Context,
	validatorClaimMap map[string]types.Claim,
) []types.BallotDenom

OrganizeBallotByDenom collects all oracle votes for the current vote period, categorized by the votes' denom parameter.

func (Keeper) PossibleWinsPerSlashWindow ¶

func (k Keeper) PossibleWinsPerSlashWindow(ctx sdk.Context) int64

PossibleWinsPerSlashWindow returns the total number of possible correct votes that a validator can have per asset multiplied by the number of vote periods in the slash window

func (*Keeper) PruneAllPrices ¶ added in v0.1.2

func (k *Keeper) PruneAllPrices(ctx sdk.Context)

PruneAllPrices deletes all historic prices, medians, and median deviations outside pruning period determined by the stamp period multiplied by the maximum stamps.

func (Keeper) PruneHistoricPricesBeforeBlock ¶ added in v0.1.2

func (k Keeper) PruneHistoricPricesBeforeBlock(ctx sdk.Context, blockNum uint64)

func (Keeper) PruneMedianDeviationsBeforeBlock ¶ added in v0.1.2

func (k Keeper) PruneMedianDeviationsBeforeBlock(ctx sdk.Context, blockNum uint64)

func (Keeper) PruneMediansBeforeBlock ¶ added in v0.1.2

func (k Keeper) PruneMediansBeforeBlock(ctx sdk.Context, blockNum uint64)

func (*Keeper) RecordEndBlockMetrics ¶ added in v0.1.3

func (k *Keeper) RecordEndBlockMetrics(ctx sdk.Context)

RecordEndBlockMetrics records miss counter and price metrics at the end of the block

func (Keeper) RewardBallotWinners ¶

func (k Keeper) RewardBallotWinners(
	ctx sdk.Context,
	votePeriod int64,
	rewardDistributionWindow int64,
	voteTargets []string,
	ballotWinners []types.Claim,
)

RewardBallotWinners is executed at the end of every voting period, where we give out a portion of seigniorage reward(reward-weight) to the oracle voters that voted correctly.

func (Keeper) RewardBands ¶ added in v0.1.3

func (k Keeper) RewardBands(ctx sdk.Context) (res types.RewardBandList)

RewardBand returns the ratio of allowable exchange rate error that a validator can be rewarded.

func (Keeper) RewardDistributionWindow ¶

func (k Keeper) RewardDistributionWindow(ctx sdk.Context) (res uint64)

RewardDistributionWindow returns the number of vote periods during which seigniorage reward comes in and then is distributed.

func (Keeper) ScheduleParamUpdatePlan ¶ added in v0.2.1

func (k Keeper) ScheduleParamUpdatePlan(ctx sdk.Context, plan types.ParamUpdatePlan) error

ScheduleParamUpdatePlan schedules a param update plan.

func (Keeper) SetAcceptList ¶

func (k Keeper) SetAcceptList(ctx sdk.Context, acceptList types.DenomList)

SetAcceptList updates the accepted list of assets supported by the x/oracle module.

func (Keeper) SetAggregateExchangeRatePrevote ¶

func (k Keeper) SetAggregateExchangeRatePrevote(
	ctx sdk.Context,
	voter sdk.ValAddress,
	prevote types.AggregateExchangeRatePrevote,
)

SetAggregateExchangeRatePrevote set an oracle aggregate prevote to the store.

func (Keeper) SetAggregateExchangeRateVote ¶

func (k Keeper) SetAggregateExchangeRateVote(
	ctx sdk.Context,
	voter sdk.ValAddress,
	vote types.AggregateExchangeRateVote,
)

SetAggregateExchangeRateVote adds an oracle aggregate prevote to the store.

func (Keeper) SetCurrencyDeviationThresholds ¶ added in v0.2.2

func (k Keeper) SetCurrencyDeviationThresholds(
	ctx sdk.Context,
	currencyDeviationThresholds types.CurrencyDeviationThresholdList,
)

SetCurrencyDeviationThresholds updates the current Currency Deviation Thesholds the price feeder will query when starting up.

func (Keeper) SetCurrencyPairProviders ¶ added in v0.2.2

func (k Keeper) SetCurrencyPairProviders(
	ctx sdk.Context,
	currencyPairProviders types.CurrencyPairProvidersList,
)

SetCurrencyPairProviders updates the current Currency Pair Providers the price feeder will query when starting up.

func (Keeper) SetExchangeRate ¶

func (k Keeper) SetExchangeRate(ctx sdk.Context, denom string, exchangeRate sdk.Dec)

SetExchangeRate sets the consensus exchange rate of USD denominated in the denom asset to the store.

func (Keeper) SetExchangeRateWithEvent ¶

func (k Keeper) SetExchangeRateWithEvent(ctx sdk.Context, denom string, exchangeRate sdk.Dec) error

SetExchangeRateWithEvent sets an consensus exchange rate to the store with ABCI event

func (Keeper) SetFeederDelegation ¶

func (k Keeper) SetFeederDelegation(ctx sdk.Context, operator sdk.ValAddress, delegatedFeeder sdk.AccAddress)

SetFeederDelegation sets the account address to which the validator operator delegated oracle vote rights.

func (Keeper) SetHistoricMedian ¶

func (k Keeper) SetHistoricMedian(
	ctx sdk.Context,
	denom string,
	blockNum uint64,
	median sdk.Dec,
)

func (Keeper) SetHistoricMedianDeviation ¶

func (k Keeper) SetHistoricMedianDeviation(
	ctx sdk.Context,
	denom string,
	blockNum uint64,
	medianDeviation sdk.Dec,
)

func (Keeper) SetHistoricPrice ¶

func (k Keeper) SetHistoricPrice(
	ctx sdk.Context,
	denom string,
	blockNum uint64,
	exchangeRate sdk.Dec,
)

func (Keeper) SetHistoricStampPeriod ¶

func (k Keeper) SetHistoricStampPeriod(ctx sdk.Context, historicPriceStampPeriod uint64)

SetHistoricStampPeriod updates the amount of blocks the oracle module waits before recording a new historic price.

func (Keeper) SetMandatoryList ¶

func (k Keeper) SetMandatoryList(ctx sdk.Context, mandatoryList types.DenomList)

SetMandatoryList updates the mandatory list of assets supported by the x/oracle module.

func (Keeper) SetMaximumMedianStamps ¶

func (k Keeper) SetMaximumMedianStamps(ctx sdk.Context, maximumMedianStamps uint64)

SetMaximumMedianStamps updates the the maximum amount of medians the oracle module will hold.

func (Keeper) SetMaximumPriceStamps ¶

func (k Keeper) SetMaximumPriceStamps(ctx sdk.Context, maximumPriceStamps uint64)

SetMaximumPriceStamps updates the the maximum amount of historic prices the oracle module will hold.

func (Keeper) SetMedianStampPeriod ¶

func (k Keeper) SetMedianStampPeriod(ctx sdk.Context, medianStampPeriod uint64)

SetMedianStampPeriod updates the amount blocks the oracle module waits between calculating a new median and standard deviation of that median.

func (Keeper) SetMinValidPerWindow ¶ added in v0.1.3

func (k Keeper) SetMinValidPerWindow(ctx sdk.Context, minValidPerWindow sdk.Dec)

MinValidPerWindow updates the oracle slashing threshold.

func (Keeper) SetMissCounter ¶

func (k Keeper) SetMissCounter(ctx sdk.Context, operator sdk.ValAddress, missCounter uint64)

SetMissCounter updates the # of vote periods missed in this oracle slash window.

func (Keeper) SetParams ¶

func (k Keeper) SetParams(ctx sdk.Context, params types.Params)

SetParams sets the total set of oracle parameters.

func (Keeper) SetRewardBand ¶ added in v0.1.3

func (k Keeper) SetRewardBand(ctx sdk.Context, rewardBands types.RewardBandList)

VoteThreshold updates the ratio of allowable exchange rate error that a validator can be rewarded.

func (Keeper) SetRewardDistributionWindow ¶ added in v0.1.3

func (k Keeper) SetRewardDistributionWindow(ctx sdk.Context, rewardDistributionWindow uint64)

SetRewardDistributionWindow updates the number of vote periods during which seigniorage reward comes in and then is distributed.

func (Keeper) SetSlashFraction ¶ added in v0.1.3

func (k Keeper) SetSlashFraction(ctx sdk.Context, slashFraction sdk.Dec)

SetSlashFraction updates the oracle voting penalty rate.

func (Keeper) SetSlashWindow ¶ added in v0.1.3

func (k Keeper) SetSlashWindow(ctx sdk.Context, slashWindow uint64)

SetSlashWindow updates the number of total blocks in a slash window.

func (Keeper) SetValidatorRewardSet ¶ added in v0.1.3

func (k Keeper) SetValidatorRewardSet(ctx sdk.Context)

SetValidatorRewardSet will take all the current validators and store them in the ValidatorRewardSet to earn rewards in the current Slash Window.

func (Keeper) SetVotePeriod ¶ added in v0.1.3

func (k Keeper) SetVotePeriod(ctx sdk.Context, votePeriod uint64)

SetVotePeriod updates the number of blocks during which voting takes place.

func (Keeper) SetVoteThreshold ¶ added in v0.1.3

func (k Keeper) SetVoteThreshold(ctx sdk.Context, voteThreshold sdk.Dec)

SetVoteThreshold updates the minimum percentage of votes that must be received for a ballot to pass.

func (Keeper) SlashAndResetMissCounters ¶

func (k Keeper) SlashAndResetMissCounters(ctx sdk.Context)

SlashAndResetMissCounters iterates over all the current missed counters and calculates the "valid vote rate" as: (possibleWinsPerSlashWindow - missCounter)/possibleWinsPerSlashWindow.

If the valid vote rate is below the minValidPerWindow, the validator will be slashed and jailed.

func (Keeper) SlashFraction ¶

func (k Keeper) SlashFraction(ctx sdk.Context) (res sdk.Dec)

SlashFraction returns the oracle voting penalty rate.

func (Keeper) SlashWindow ¶

func (k Keeper) SlashWindow(ctx sdk.Context) (res uint64)

SlashWindow returns the number of total blocks in a slash window.

func (Keeper) ValidateFeeder ¶

func (k Keeper) ValidateFeeder(ctx sdk.Context, feederAddr sdk.AccAddress, valAddr sdk.ValAddress) error

ValidateFeeder returns error if the given feeder is not allowed to feed the message.

func (Keeper) ValidateParamChanges ¶ added in v0.2.1

func (k Keeper) ValidateParamChanges(ctx sdk.Context, keys []string, changes types.Params) error

ValidateParamChanges validates parameter changes against the existing oracle parameters.

func (Keeper) VotePeriod ¶

func (k Keeper) VotePeriod(ctx sdk.Context) (res uint64)

VotePeriod returns the number of blocks during which voting takes place.

func (Keeper) VoteThreshold ¶

func (k Keeper) VoteThreshold(ctx sdk.Context) (res sdk.Dec)

VoteThreshold returns the minimum percentage of votes that must be received for a ballot to pass.

func (Keeper) WithinHistoricMedianDeviation ¶

func (k Keeper) WithinHistoricMedianDeviation(
	ctx sdk.Context,
	denom string,
) (bool, error)

WithinHistoricMedianDeviation returns whether or not the current price of a given denom is within the latest stamped Standard Deviation around the Median.

func (Migrator) MigrateCurrencyDeviationThresholds ¶ added in v0.2.2

func (m Migrator) MigrateCurrencyDeviationThresholds(ctx sdk.Context)

MigrateCurrencyDeviationThresholds adds the price feeder currency deviation threshold list.

func (Migrator) MigrateCurrencyPairProviders ¶ added in v0.2.2

func (m Migrator) MigrateCurrencyPairProviders(ctx sdk.Context)

MigrateCurrencyPairProviders adds the price feeder currency pair provider list.

func (Migrator) MigrateValidatorSet ¶ added in v0.1.4

func (m Migrator) MigrateValidatorSet(ctx sdk.Context)

MigrateValidatorSet fixes the validator set being stored as map causing non determinism by storing it as a list.