cosmos-sdk/types/stake.go

112 lines
4.0 KiB
Go

package types
import (
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/crypto"
tmtypes "github.com/tendermint/tendermint/types"
)
// status of a validator
type BondStatus byte
// nolint
const (
Unbonded BondStatus = 0x00
Unbonding BondStatus = 0x01
Bonded BondStatus = 0x02
)
//BondStatusToString for pretty prints of Bond Status
func BondStatusToString(b BondStatus) string {
switch b {
case 0x00:
return "Unbonded"
case 0x01:
return "Unbonding"
case 0x02:
return "Bonded"
default:
panic("improper use of BondStatusToString")
}
}
// nolint
func (b BondStatus) Equal(b2 BondStatus) bool {
return byte(b) == byte(b2)
}
// validator for a delegated proof of stake system
type Validator interface {
GetJailed() bool // whether the validator is jailed
GetMoniker() string // moniker of the validator
GetStatus() BondStatus // status of the validator
GetOperator() ValAddress // operator address to receive/return validators coins
GetPubKey() crypto.PubKey // validation pubkey
GetPower() Dec // validation power
GetTokens() Dec // validation tokens
GetDelegatorShares() Dec // Total out standing delegator shares
GetBondHeight() int64 // height in which the validator became active
}
// validator which fulfills abci validator interface for use in Tendermint
func ABCIValidator(v Validator) abci.Validator {
return abci.Validator{
PubKey: tmtypes.TM2PB.PubKey(v.GetPubKey()),
Address: v.GetPubKey().Address(),
Power: v.GetPower().RoundInt64(),
}
}
// properties for the set of all validators
type ValidatorSet interface {
// iterate through validators by operator address, execute func for each validator
IterateValidators(Context,
func(index int64, validator Validator) (stop bool))
// iterate through bonded validators by operator address, execute func for each validator
IterateValidatorsBonded(Context,
func(index int64, validator Validator) (stop bool))
Validator(Context, ValAddress) Validator // get a particular validator by operator
ValidatorByPubKey(Context, crypto.PubKey) Validator // get a particular validator by signing PubKey
TotalPower(Context) Dec // total power of the validator set
// slash the validator and delegators of the validator, specifying offence height, offence power, and slash fraction
Slash(Context, crypto.PubKey, int64, int64, Dec)
Jail(Context, crypto.PubKey) // jail a validator
Unjail(Context, crypto.PubKey) // unjail a validator
// Delegation allows for getting a particular delegation for a given validator
// and delegator outside the scope of the staking module.
Delegation(Context, AccAddress, ValAddress) Delegation
}
//_______________________________________________________________________________
// delegation bond for a delegated proof of stake system
type Delegation interface {
GetDelegator() AccAddress // delegator AccAddress for the bond
GetValidator() ValAddress // validator operator address
GetBondShares() Dec // amount of validator's shares
}
// properties for the set of all delegations for a particular
type DelegationSet interface {
GetValidatorSet() ValidatorSet // validator set for which delegation set is based upon
// iterate through all delegations from one delegator by validator-AccAddress,
// execute func for each validator
IterateDelegations(ctx Context, delegator AccAddress,
fn func(index int64, delegation Delegation) (stop bool))
}
// validator event hooks
// These can be utilized to communicate between a staking keeper
// and another keeper which must take particular actions when
// validators are bonded and unbonded. The second keeper must implement
// this interface, which then the staking keeper can call.
type ValidatorHooks interface {
OnValidatorBonded(ctx Context, address ConsAddress) // Must be called when a validator is bonded
OnValidatorBeginUnbonding(ctx Context, address ConsAddress) // Must be called when a validator begins unbonding
}