82 lines
3.1 KiB
Go
82 lines
3.1 KiB
Go
package stake
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import (
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"encoding/binary"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/wire"
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crypto "github.com/tendermint/go-crypto"
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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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ParamKey = []byte{0x00} // key for global parameters relating to staking
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PoolKey = []byte{0x01} // key for global parameters relating to staking
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ValidatorsKey = []byte{0x02} // prefix for each key to a validator
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ValidatorsByPowerKey = []byte{0x03} // prefix for each key to a validator sorted by power
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ValidatorsBondedKey = []byte{0x04} // prefix for each key to bonded/actively validating validators
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TendermintUpdatesKey = []byte{0x05} // prefix for each key to a validator which is being updated
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DelegationKey = []byte{0x06} // prefix for each key to a delegator's bond
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IntraTxCounterKey = []byte{0x07} // key for block-local tx index
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)
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const maxDigitsForAccount = 12 // ~220,000,000 atoms created at launch
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// get the key for the validator with address
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func GetValidatorKey(addr sdk.Address) []byte {
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return append(ValidatorsKey, addr.Bytes()...)
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}
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// get the key for the validator used in the power-store
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func GetValidatorsBondedByPowerKey(validator Validator, pool Pool) []byte {
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power := validator.EquivalentBondedShares(pool)
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powerBytes := []byte(power.ToLeftPadded(maxDigitsForAccount)) // power big-endian (more powerful validators first)
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// TODO ensure that the key will be a readable string.. probably should add seperators and have
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// heightBytes and counterBytes represent strings like powerBytes does
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heightBytes := make([]byte, binary.MaxVarintLen64)
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binary.BigEndian.PutUint64(heightBytes, ^uint64(validator.BondHeight)) // invert height (older validators first)
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counterBytes := make([]byte, 2)
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binary.BigEndian.PutUint16(counterBytes, ^uint16(validator.BondIntraTxCounter)) // invert counter (first txns have priority)
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return append(ValidatorsByPowerKey,
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append(powerBytes,
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append(heightBytes,
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append(counterBytes, validator.Address.Bytes()...)...)...)...)
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}
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// get the key for the accumulated update validators
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func GetTendermintUpdatesKey(addr sdk.Address) []byte {
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return append(TendermintUpdatesKey, addr.Bytes()...)
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}
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// get the key for the current validator group, ordered like tendermint
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func GetValidatorsBondedKey(pk crypto.PubKey) []byte {
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addr := pk.Address()
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return append(ValidatorsBondedKey, addr.Bytes()...)
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}
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// get the key for delegator bond with validator
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func GetDelegationKey(delegatorAddr, validatorAddr sdk.Address, cdc *wire.Codec) []byte {
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return append(GetDelegationsKey(delegatorAddr, cdc), validatorAddr.Bytes()...)
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}
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// get the prefix for a delegator for all validators
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func GetDelegationsKey(delegatorAddr sdk.Address, cdc *wire.Codec) []byte {
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res, err := cdc.MarshalBinary(&delegatorAddr)
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if err != nil {
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panic(err)
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}
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return append(DelegationKey, res...)
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}
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//______________________________________________________________
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// remove the prefix byte from a key, possibly revealing and address
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func AddrFromKey(key []byte) sdk.Address {
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return key[1:]
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}
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