143 lines
4.0 KiB
Go
143 lines
4.0 KiB
Go
package keeper
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import (
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"container/list"
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"github.com/cosmos/cosmos-sdk/codec"
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sdk "github.com/cosmos/cosmos-sdk/types"
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"github.com/cosmos/cosmos-sdk/x/bank"
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"github.com/cosmos/cosmos-sdk/x/params"
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"github.com/cosmos/cosmos-sdk/x/stake/types"
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)
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const aminoCacheSize = 500
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// keeper of the stake store
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type Keeper struct {
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storeKey sdk.StoreKey
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storeTKey sdk.StoreKey
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cdc *codec.Codec
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bankKeeper bank.Keeper
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hooks sdk.StakingHooks
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paramstore params.Subspace
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validatorCache map[string]cachedValidator
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validatorCacheList *list.List
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// codespace
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codespace sdk.CodespaceType
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}
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func NewKeeper(cdc *codec.Codec, key, tkey sdk.StoreKey, ck bank.Keeper, paramstore params.Subspace, codespace sdk.CodespaceType) Keeper {
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keeper := Keeper{
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storeKey: key,
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storeTKey: tkey,
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cdc: cdc,
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bankKeeper: ck,
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paramstore: paramstore.WithTypeTable(ParamTypeTable()),
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hooks: nil,
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validatorCache: make(map[string]cachedValidator, aminoCacheSize),
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validatorCacheList: list.New(),
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codespace: codespace,
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}
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return keeper
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}
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// Set the validator hooks
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func (k *Keeper) SetHooks(sh sdk.StakingHooks) *Keeper {
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if k.hooks != nil {
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panic("cannot set validator hooks twice")
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}
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k.hooks = sh
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return k
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}
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//_________________________________________________________________________
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// return the codespace
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func (k Keeper) Codespace() sdk.CodespaceType {
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return k.codespace
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}
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//_______________________________________________________________________
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// load the pool
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func (k Keeper) GetPool(ctx sdk.Context) (pool types.Pool) {
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store := ctx.KVStore(k.storeKey)
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b := store.Get(PoolKey)
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if b == nil {
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panic("stored pool should not have been nil")
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}
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k.cdc.MustUnmarshalBinaryLengthPrefixed(b, &pool)
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return
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}
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// set the pool
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func (k Keeper) SetPool(ctx sdk.Context, pool types.Pool) {
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store := ctx.KVStore(k.storeKey)
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b := k.cdc.MustMarshalBinaryLengthPrefixed(pool)
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store.Set(PoolKey, b)
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}
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//_______________________________________________________________________
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// Load the last total validator power.
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func (k Keeper) GetLastTotalPower(ctx sdk.Context) (power sdk.Int) {
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store := ctx.KVStore(k.storeKey)
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b := store.Get(LastTotalPowerKey)
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if b == nil {
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return sdk.ZeroInt()
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}
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k.cdc.MustUnmarshalBinaryLengthPrefixed(b, &power)
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return
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}
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// Set the last total validator power.
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func (k Keeper) SetLastTotalPower(ctx sdk.Context, power sdk.Int) {
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store := ctx.KVStore(k.storeKey)
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b := k.cdc.MustMarshalBinaryLengthPrefixed(power)
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store.Set(LastTotalPowerKey, b)
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}
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//_______________________________________________________________________
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// Load the last validator power.
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// Returns zero if the operator was not a validator last block.
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func (k Keeper) GetLastValidatorPower(ctx sdk.Context, operator sdk.ValAddress) (power sdk.Int) {
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store := ctx.KVStore(k.storeKey)
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bz := store.Get(GetLastValidatorPowerKey(operator))
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if bz == nil {
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return sdk.ZeroInt()
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}
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k.cdc.MustUnmarshalBinaryLengthPrefixed(bz, &power)
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return
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}
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// Set the last validator power.
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func (k Keeper) SetLastValidatorPower(ctx sdk.Context, operator sdk.ValAddress, power sdk.Int) {
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store := ctx.KVStore(k.storeKey)
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bz := k.cdc.MustMarshalBinaryLengthPrefixed(power)
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store.Set(GetLastValidatorPowerKey(operator), bz)
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}
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// Iterate over last validator powers.
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func (k Keeper) IterateLastValidatorPowers(ctx sdk.Context, handler func(operator sdk.ValAddress, power sdk.Int) (stop bool)) {
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store := ctx.KVStore(k.storeKey)
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iter := sdk.KVStorePrefixIterator(store, LastValidatorPowerKey)
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defer iter.Close()
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for ; iter.Valid(); iter.Next() {
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addr := sdk.ValAddress(iter.Key()[len(LastValidatorPowerKey):])
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var power sdk.Int
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k.cdc.MustUnmarshalBinaryLengthPrefixed(iter.Value(), &power)
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if handler(addr, power) {
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break
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}
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}
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}
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// Delete the last validator power.
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func (k Keeper) DeleteLastValidatorPower(ctx sdk.Context, operator sdk.ValAddress) {
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store := ctx.KVStore(k.storeKey)
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store.Delete(GetLastValidatorPowerKey(operator))
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}
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