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genesis.go
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genesis.go
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package staking
import (
"fmt"
abci "github.com/tendermint/tendermint/abci/types"
tmtypes "github.com/tendermint/tendermint/types"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/staking/exported"
"github.com/cosmos/cosmos-sdk/x/staking/types"
)
// InitGenesis sets the pool and parameters for the provided keeper. For each
// validator in data, it sets that validator in the keeper along with manually
// setting the indexes. In addition, it also sets any delegations found in
// data. Finally, it updates the bonded validators.
// Returns final validator set after applying all declaration and delegations
func InitGenesis(ctx sdk.Context, keeper Keeper, accountKeeper types.AccountKeeper,
supplyKeeper types.SupplyKeeper, data types.GenesisState) (res []abci.ValidatorUpdate) {
bondedTokens := sdk.ZeroInt()
notBondedTokens := sdk.ZeroInt()
// We need to pretend to be "n blocks before genesis", where "n" is the
// validator update delay, so that e.g. slashing periods are correctly
// initialized for the validator set e.g. with a one-block offset - the
// first TM block is at height 1, so state updates applied from
// genesis.json are in block 0.
ctx = ctx.WithBlockHeight(1 - sdk.ValidatorUpdateDelay)
keeper.SetParams(ctx, data.Params)
keeper.SetLastTotalPower(ctx, data.LastTotalPower)
for _, validator := range data.Validators {
keeper.SetValidator(ctx, validator)
// Manually set indices for the first time
keeper.SetValidatorByConsAddr(ctx, validator)
keeper.SetValidatorByPowerIndex(ctx, validator)
// Call the creation hook if not exported
if !data.Exported {
keeper.AfterValidatorCreated(ctx, validator.OperatorAddress)
}
// update timeslice if necessary
if validator.IsUnbonding() {
keeper.InsertValidatorQueue(ctx, validator)
}
switch validator.GetStatus() {
case sdk.Bonded:
bondedTokens = bondedTokens.Add(validator.GetTokens())
case sdk.Unbonding, sdk.Unbonded:
notBondedTokens = notBondedTokens.Add(validator.GetTokens())
default:
panic("invalid validator status")
}
}
for _, delegation := range data.Delegations {
// Call the before-creation hook if not exported
if !data.Exported {
keeper.BeforeDelegationCreated(ctx, delegation.DelegatorAddress, delegation.ValidatorAddress)
}
keeper.SetDelegation(ctx, delegation)
// Call the after-modification hook if not exported
if !data.Exported {
keeper.AfterDelegationModified(ctx, delegation.DelegatorAddress, delegation.ValidatorAddress)
}
}
for _, ubd := range data.UnbondingDelegations {
keeper.SetUnbondingDelegation(ctx, ubd)
for _, entry := range ubd.Entries {
keeper.InsertUBDQueue(ctx, ubd, entry.CompletionTime)
notBondedTokens = notBondedTokens.Add(entry.Balance)
}
}
for _, red := range data.Redelegations {
keeper.SetRedelegation(ctx, red)
for _, entry := range red.Entries {
keeper.InsertRedelegationQueue(ctx, red, entry.CompletionTime)
}
}
bondedCoins := sdk.NewCoins(sdk.NewCoin(data.Params.BondDenom, bondedTokens))
notBondedCoins := sdk.NewCoins(sdk.NewCoin(data.Params.BondDenom, notBondedTokens))
// check if the unbonded and bonded pools accounts exists
bondedPool := keeper.GetBondedPool(ctx)
if bondedPool == nil {
panic(fmt.Sprintf("%s module account has not been set", types.BondedPoolName))
}
// TODO remove with genesis 2-phases refactor https://github.com/cosmos/cosmos-sdk/issues/2862
// add coins if not provided on genesis
if bondedPool.GetCoins().IsZero() {
if err := bondedPool.SetCoins(bondedCoins); err != nil {
panic(err)
}
supplyKeeper.SetModuleAccount(ctx, bondedPool)
}
notBondedPool := keeper.GetNotBondedPool(ctx)
if notBondedPool == nil {
panic(fmt.Sprintf("%s module account has not been set", types.NotBondedPoolName))
}
if notBondedPool.GetCoins().IsZero() {
if err := notBondedPool.SetCoins(notBondedCoins); err != nil {
panic(err)
}
supplyKeeper.SetModuleAccount(ctx, notBondedPool)
}
// don't need to run Tendermint updates if we exported
if data.Exported {
for _, lv := range data.LastValidatorPowers {
keeper.SetLastValidatorPower(ctx, lv.Address, lv.Power)
validator, found := keeper.GetValidator(ctx, lv.Address)
if !found {
panic(fmt.Sprintf("validator %s not found", lv.Address))
}
update := validator.ABCIValidatorUpdate()
update.Power = lv.Power // keep the next-val-set offset, use the last power for the first block
res = append(res, update)
}
} else {
res = keeper.ApplyAndReturnValidatorSetUpdates(ctx)
}
return res
}
// ExportGenesis returns a GenesisState for a given context and keeper. The
// GenesisState will contain the pool, params, validators, and bonds found in
// the keeper.
func ExportGenesis(ctx sdk.Context, keeper Keeper) types.GenesisState {
params := keeper.GetParams(ctx)
lastTotalPower := keeper.GetLastTotalPower(ctx)
validators := keeper.GetAllValidators(ctx)
delegations := keeper.GetAllDelegations(ctx)
var unbondingDelegations []types.UnbondingDelegation
keeper.IterateUnbondingDelegations(ctx, func(_ int64, ubd types.UnbondingDelegation) (stop bool) {
unbondingDelegations = append(unbondingDelegations, ubd)
return false
})
var redelegations []types.Redelegation
keeper.IterateRedelegations(ctx, func(_ int64, red types.Redelegation) (stop bool) {
redelegations = append(redelegations, red)
return false
})
var lastValidatorPowers []types.LastValidatorPower
keeper.IterateLastValidatorPowers(ctx, func(addr sdk.ValAddress, power int64) (stop bool) {
lastValidatorPowers = append(lastValidatorPowers, types.LastValidatorPower{Address: addr, Power: power})
return false
})
return types.GenesisState{
Params: params,
LastTotalPower: lastTotalPower,
LastValidatorPowers: lastValidatorPowers,
Validators: validators,
Delegations: delegations,
UnbondingDelegations: unbondingDelegations,
Redelegations: redelegations,
Exported: true,
}
}
// WriteValidators returns a slice of bonded genesis validators.
func WriteValidators(ctx sdk.Context, keeper Keeper) (vals []tmtypes.GenesisValidator) {
keeper.IterateLastValidators(ctx, func(_ int64, validator exported.ValidatorI) (stop bool) {
vals = append(vals, tmtypes.GenesisValidator{
PubKey: validator.GetConsPubKey(),
Power: validator.GetConsensusPower(),
Name: validator.GetMoniker(),
})
return false
})
return
}
// ValidateGenesis validates the provided staking genesis state to ensure the
// expected invariants holds. (i.e. params in correct bounds, no duplicate validators)
func ValidateGenesis(data types.GenesisState) error {
err := validateGenesisStateValidators(data.Validators)
if err != nil {
return err
}
err = data.Params.Validate()
if err != nil {
return err
}
return nil
}
func validateGenesisStateValidators(validators []types.Validator) (err error) {
addrMap := make(map[string]bool, len(validators))
for i := 0; i < len(validators); i++ {
val := validators[i]
strKey := string(val.ConsPubKey.Bytes())
if _, ok := addrMap[strKey]; ok {
return fmt.Errorf("duplicate validator in genesis state: moniker %v, address %v", val.Description.Moniker, val.ConsAddress())
}
if val.Jailed && val.IsBonded() {
return fmt.Errorf("validator is bonded and jailed in genesis state: moniker %v, address %v", val.Description.Moniker, val.ConsAddress())
}
if val.DelegatorShares.IsZero() && !val.IsUnbonding() {
return fmt.Errorf("bonded/unbonded genesis validator cannot have zero delegator shares, validator: %v", val)
}
addrMap[strKey] = true
}
return
}