cosmos-sdk/x/staking/keeper/keeper.go

133 lines
3.4 KiB
Go

package keeper
import (
"fmt"
"cosmossdk.io/math"
storetypes "github.com/cosmos/cosmos-sdk/store/types"
abci "github.com/tendermint/tendermint/abci/types"
"github.com/tendermint/tendermint/libs/log"
"github.com/cosmos/cosmos-sdk/codec"
sdk "github.com/cosmos/cosmos-sdk/types"
"github.com/cosmos/cosmos-sdk/x/staking/types"
)
// Implements ValidatorSet interface
var _ types.ValidatorSet = Keeper{}
// Implements DelegationSet interface
var _ types.DelegationSet = Keeper{}
// Keeper of the x/staking store
type Keeper struct {
storeKey storetypes.StoreKey
cdc codec.BinaryCodec
authKeeper types.AccountKeeper
bankKeeper types.BankKeeper
hooks types.StakingHooks
authority string
}
// NewKeeper creates a new staking Keeper instance
func NewKeeper(
cdc codec.BinaryCodec,
key storetypes.StoreKey,
ak types.AccountKeeper,
bk types.BankKeeper,
authority string,
) *Keeper {
// ensure bonded and not bonded module accounts are set
if addr := ak.GetModuleAddress(types.BondedPoolName); addr == nil {
panic(fmt.Sprintf("%s module account has not been set", types.BondedPoolName))
}
if addr := ak.GetModuleAddress(types.NotBondedPoolName); addr == nil {
panic(fmt.Sprintf("%s module account has not been set", types.NotBondedPoolName))
}
// ensure that authority is a valid AccAddress
if _, err := sdk.AccAddressFromBech32(authority); err != nil {
panic(("authority is not a valid acc address"))
}
return &Keeper{
storeKey: key,
cdc: cdc,
authKeeper: ak,
bankKeeper: bk,
hooks: nil,
authority: authority,
}
}
// Logger returns a module-specific logger.
func (k Keeper) Logger(ctx sdk.Context) log.Logger {
return ctx.Logger().With("module", "x/"+types.ModuleName)
}
// Hooks gets the hooks for staking *Keeper {
func (keeper *Keeper) Hooks() types.StakingHooks {
if keeper.hooks == nil {
// return a no-op implementation if no hooks are set
return types.MultiStakingHooks{}
}
return keeper.hooks
}
// SetHooks Set the validator hooks
func (k *Keeper) SetHooks(sh types.StakingHooks) {
if k.hooks != nil {
panic("cannot set validator hooks twice")
}
k.hooks = sh
}
// GetLastTotalPower Load the last total validator power.
func (k Keeper) GetLastTotalPower(ctx sdk.Context) math.Int {
store := ctx.KVStore(k.storeKey)
bz := store.Get(types.LastTotalPowerKey)
if bz == nil {
return math.ZeroInt()
}
ip := sdk.IntProto{}
k.cdc.MustUnmarshal(bz, &ip)
return ip.Int
}
// SetLastTotalPower Set the last total validator power.
func (k Keeper) SetLastTotalPower(ctx sdk.Context, power math.Int) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshal(&sdk.IntProto{Int: power})
store.Set(types.LastTotalPowerKey, bz)
}
// GetAuthority returns the x/staking module's authority.
func (k Keeper) GetAuthority() string {
return k.authority
}
// SetValidatorUpdates sets the ABCI validator power updates for the current block.
func (k Keeper) SetValidatorUpdates(ctx sdk.Context, valUpdates []abci.ValidatorUpdate) {
store := ctx.KVStore(k.storeKey)
bz := k.cdc.MustMarshal(&types.ValidatorUpdates{Updates: valUpdates})
store.Set(types.ValidatorUpdatesKey, bz)
}
// GetValidatorUpdates returns the ABCI validator power updates within the current block.
func (k Keeper) GetValidatorUpdates(ctx sdk.Context) []abci.ValidatorUpdate {
store := ctx.KVStore(k.storeKey)
bz := store.Get(types.ValidatorUpdatesKey)
var valUpdates types.ValidatorUpdates
k.cdc.MustUnmarshal(bz, &valUpdates)
return valUpdates.Updates
}