265 lines
10 KiB
Go
265 lines
10 KiB
Go
package keeper
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import (
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"encoding/binary"
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"time"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/stake/types"
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)
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// TODO remove some of these prefixes once have working multistore
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//nolint
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var (
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// Keys for store prefixes
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// TODO DEPRECATED: delete in next release and reorder keys
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// ParamKey = []byte{0x00} // key for parameters relating to staking
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PoolKey = []byte{0x01} // key for the staking pools
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IntraTxCounterKey = []byte{0x02} // key for intra-block tx index
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// Last* values are const during a block.
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LastValidatorPowerKey = []byte{0x11} // prefix for each key to a validator index, for bonded validators
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LastTotalPowerKey = []byte{0x12} // prefix for the total power
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ValidatorsKey = []byte{0x21} // prefix for each key to a validator
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ValidatorsByConsAddrKey = []byte{0x22} // prefix for each key to a validator index, by pubkey
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ValidatorsByPowerIndexKey = []byte{0x23} // prefix for each key to a validator index, sorted by power
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DelegationKey = []byte{0x31} // key for a delegation
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UnbondingDelegationKey = []byte{0x32} // key for an unbonding-delegation
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UnbondingDelegationByValIndexKey = []byte{0x33} // prefix for each key for an unbonding-delegation, by validator operator
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RedelegationKey = []byte{0x34} // key for a redelegation
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RedelegationByValSrcIndexKey = []byte{0x35} // prefix for each key for an redelegation, by source validator operator
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RedelegationByValDstIndexKey = []byte{0x36} // prefix for each key for an redelegation, by destination validator operator
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UnbondingQueueKey = []byte{0x41} // prefix for the timestamps in unbonding queue
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RedelegationQueueKey = []byte{0x42} // prefix for the timestamps in redelegations queue
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ValidatorQueueKey = []byte{0x43} // prefix for the timestamps in validator queue
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)
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const maxDigitsForAccount = 12 // ~220,000,000 atoms created at launch
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// gets the key for the validator with address
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// VALUE: stake/types.Validator
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func GetValidatorKey(operatorAddr sdk.ValAddress) []byte {
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return append(ValidatorsKey, operatorAddr.Bytes()...)
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}
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// gets the key for the validator with pubkey
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// VALUE: validator operator address ([]byte)
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func GetValidatorByConsAddrKey(addr sdk.ConsAddress) []byte {
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return append(ValidatorsByConsAddrKey, addr.Bytes()...)
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}
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// Get the validator operator address from LastValidatorPowerKey
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func AddressFromLastValidatorPowerKey(key []byte) []byte {
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return key[1:] // remove prefix bytes
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}
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// get the validator by power index.
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// Power index is the key used in the power-store, and represents the relative
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// power ranking of the validator.
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// VALUE: validator operator address ([]byte)
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func GetValidatorsByPowerIndexKey(validator types.Validator, pool types.Pool) []byte {
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// NOTE the address doesn't need to be stored because counter bytes must always be different
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return getValidatorPowerRank(validator)
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}
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// get the bonded validator index key for an operator address
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func GetLastValidatorPowerKey(operator sdk.ValAddress) []byte {
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return append(LastValidatorPowerKey, operator...)
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}
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// get the power ranking of a validator
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// NOTE the larger values are of higher value
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// nolint: unparam
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func getValidatorPowerRank(validator types.Validator) []byte {
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potentialPower := validator.Tokens
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// todo: deal with cases above 2**64, ref https://github.com/cosmos/cosmos-sdk/issues/2439#issuecomment-427167556
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tendermintPower := potentialPower.RoundInt64()
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tendermintPowerBytes := make([]byte, 8)
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binary.BigEndian.PutUint64(tendermintPowerBytes[:], uint64(tendermintPower))
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powerBytes := tendermintPowerBytes
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powerBytesLen := len(powerBytes)
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// key is of format prefix || powerbytes || heightBytes || counterBytes
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key := make([]byte, 1+powerBytesLen+8+2)
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key[0] = ValidatorsByPowerIndexKey[0]
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copy(key[1:powerBytesLen+1], powerBytes)
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// include heightBytes height is inverted (older validators first)
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binary.BigEndian.PutUint64(key[powerBytesLen+1:powerBytesLen+9], ^uint64(validator.BondHeight))
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// include counterBytes, counter is inverted (first txns have priority)
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binary.BigEndian.PutUint16(key[powerBytesLen+9:powerBytesLen+11], ^uint16(validator.BondIntraTxCounter))
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return key
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}
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// gets the prefix for all unbonding delegations from a delegator
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func GetValidatorQueueTimeKey(timestamp time.Time) []byte {
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bz := sdk.FormatTimeBytes(timestamp)
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return append(ValidatorQueueKey, bz...)
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}
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//______________________________________________________________________________
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// gets the key for delegator bond with validator
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// VALUE: stake/types.Delegation
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func GetDelegationKey(delAddr sdk.AccAddress, valAddr sdk.ValAddress) []byte {
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return append(GetDelegationsKey(delAddr), valAddr.Bytes()...)
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}
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// gets the prefix for a delegator for all validators
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func GetDelegationsKey(delAddr sdk.AccAddress) []byte {
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return append(DelegationKey, delAddr.Bytes()...)
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}
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//______________________________________________________________________________
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// gets the key for an unbonding delegation by delegator and validator addr
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// VALUE: stake/types.UnbondingDelegation
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func GetUBDKey(delAddr sdk.AccAddress, valAddr sdk.ValAddress) []byte {
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return append(
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GetUBDsKey(delAddr.Bytes()),
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valAddr.Bytes()...)
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}
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// gets the index-key for an unbonding delegation, stored by validator-index
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// VALUE: none (key rearrangement used)
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func GetUBDByValIndexKey(delAddr sdk.AccAddress, valAddr sdk.ValAddress) []byte {
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return append(GetUBDsByValIndexKey(valAddr), delAddr.Bytes()...)
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}
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// rearranges the ValIndexKey to get the UBDKey
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func GetUBDKeyFromValIndexKey(IndexKey []byte) []byte {
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addrs := IndexKey[1:] // remove prefix bytes
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if len(addrs) != 2*sdk.AddrLen {
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panic("unexpected key length")
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}
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valAddr := addrs[:sdk.AddrLen]
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delAddr := addrs[sdk.AddrLen:]
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return GetUBDKey(delAddr, valAddr)
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}
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//______________
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// gets the prefix for all unbonding delegations from a delegator
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func GetUBDsKey(delAddr sdk.AccAddress) []byte {
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return append(UnbondingDelegationKey, delAddr.Bytes()...)
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}
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// gets the prefix keyspace for the indexes of unbonding delegations for a validator
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func GetUBDsByValIndexKey(valAddr sdk.ValAddress) []byte {
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return append(UnbondingDelegationByValIndexKey, valAddr.Bytes()...)
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}
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// gets the prefix for all unbonding delegations from a delegator
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func GetUnbondingDelegationTimeKey(timestamp time.Time) []byte {
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bz := sdk.FormatTimeBytes(timestamp)
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return append(UnbondingQueueKey, bz...)
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}
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//________________________________________________________________________________
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// gets the key for a redelegation
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// VALUE: stake/types.RedelegationKey
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func GetREDKey(delAddr sdk.AccAddress, valSrcAddr, valDstAddr sdk.ValAddress) []byte {
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key := make([]byte, 1+sdk.AddrLen*3)
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copy(key[0:sdk.AddrLen+1], GetREDsKey(delAddr.Bytes()))
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copy(key[sdk.AddrLen+1:2*sdk.AddrLen+1], valSrcAddr.Bytes())
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copy(key[2*sdk.AddrLen+1:3*sdk.AddrLen+1], valDstAddr.Bytes())
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return key
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}
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// gets the index-key for a redelegation, stored by source-validator-index
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// VALUE: none (key rearrangement used)
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func GetREDByValSrcIndexKey(delAddr sdk.AccAddress, valSrcAddr, valDstAddr sdk.ValAddress) []byte {
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REDSFromValsSrcKey := GetREDsFromValSrcIndexKey(valSrcAddr)
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offset := len(REDSFromValsSrcKey)
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// key is of the form REDSFromValsSrcKey || delAddr || valDstAddr
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key := make([]byte, len(REDSFromValsSrcKey)+2*sdk.AddrLen)
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copy(key[0:offset], REDSFromValsSrcKey)
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copy(key[offset:offset+sdk.AddrLen], delAddr.Bytes())
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copy(key[offset+sdk.AddrLen:offset+2*sdk.AddrLen], valDstAddr.Bytes())
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return key
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}
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// gets the index-key for a redelegation, stored by destination-validator-index
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// VALUE: none (key rearrangement used)
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func GetREDByValDstIndexKey(delAddr sdk.AccAddress, valSrcAddr, valDstAddr sdk.ValAddress) []byte {
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REDSToValsDstKey := GetREDsToValDstIndexKey(valDstAddr)
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offset := len(REDSToValsDstKey)
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// key is of the form REDSToValsDstKey || delAddr || valSrcAddr
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key := make([]byte, len(REDSToValsDstKey)+2*sdk.AddrLen)
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copy(key[0:offset], REDSToValsDstKey)
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copy(key[offset:offset+sdk.AddrLen], delAddr.Bytes())
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copy(key[offset+sdk.AddrLen:offset+2*sdk.AddrLen], valSrcAddr.Bytes())
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return key
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}
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// GetREDKeyFromValSrcIndexKey rearranges the ValSrcIndexKey to get the REDKey
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func GetREDKeyFromValSrcIndexKey(indexKey []byte) []byte {
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// note that first byte is prefix byte
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if len(indexKey) != 3*sdk.AddrLen+1 {
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panic("unexpected key length")
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}
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valSrcAddr := indexKey[1 : sdk.AddrLen+1]
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delAddr := indexKey[sdk.AddrLen+1 : 2*sdk.AddrLen+1]
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valDstAddr := indexKey[2*sdk.AddrLen+1 : 3*sdk.AddrLen+1]
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return GetREDKey(delAddr, valSrcAddr, valDstAddr)
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}
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// GetREDKeyFromValDstIndexKey rearranges the ValDstIndexKey to get the REDKey
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func GetREDKeyFromValDstIndexKey(indexKey []byte) []byte {
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// note that first byte is prefix byte
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if len(indexKey) != 3*sdk.AddrLen+1 {
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panic("unexpected key length")
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}
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valDstAddr := indexKey[1 : sdk.AddrLen+1]
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delAddr := indexKey[sdk.AddrLen+1 : 2*sdk.AddrLen+1]
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valSrcAddr := indexKey[2*sdk.AddrLen+1 : 3*sdk.AddrLen+1]
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return GetREDKey(delAddr, valSrcAddr, valDstAddr)
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}
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// gets the prefix for all unbonding delegations from a delegator
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func GetRedelegationTimeKey(timestamp time.Time) []byte {
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bz := sdk.FormatTimeBytes(timestamp)
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return append(RedelegationQueueKey, bz...)
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}
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//______________
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// gets the prefix keyspace for redelegations from a delegator
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func GetREDsKey(delAddr sdk.AccAddress) []byte {
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return append(RedelegationKey, delAddr.Bytes()...)
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}
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// gets the prefix keyspace for all redelegations redelegating away from a source validator
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func GetREDsFromValSrcIndexKey(valSrcAddr sdk.ValAddress) []byte {
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return append(RedelegationByValSrcIndexKey, valSrcAddr.Bytes()...)
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}
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// gets the prefix keyspace for all redelegations redelegating towards a destination validator
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func GetREDsToValDstIndexKey(valDstAddr sdk.ValAddress) []byte {
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return append(RedelegationByValDstIndexKey, valDstAddr.Bytes()...)
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}
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// gets the prefix keyspace for all redelegations redelegating towards a destination validator
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// from a particular delegator
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func GetREDsByDelToValDstIndexKey(delAddr sdk.AccAddress, valDstAddr sdk.ValAddress) []byte {
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return append(
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GetREDsToValDstIndexKey(valDstAddr),
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delAddr.Bytes()...)
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}
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