c4a3c0a96e
* evm: implement vm.GetHashFn * check nil case * test * handle 3 cases * use switch statement * stateDB tests * abci changes * fix LGTM issue * final tests * changelog * remove epoch * update test * clean test * rm epoch
65 lines
2.2 KiB
Go
65 lines
2.2 KiB
Go
package keeper
|
|
|
|
import (
|
|
"math/big"
|
|
|
|
abci "github.com/tendermint/tendermint/abci/types"
|
|
|
|
sdk "github.com/cosmos/cosmos-sdk/types"
|
|
|
|
ethtypes "github.com/ethereum/go-ethereum/core/types"
|
|
|
|
"github.com/cosmos/ethermint/x/evm/types"
|
|
)
|
|
|
|
// BeginBlock sets the block hash -> block height map for the previous block height
|
|
// and resets the Bloom filter and the transaction count to 0.
|
|
func (k *Keeper) BeginBlock(ctx sdk.Context, req abci.RequestBeginBlock) {
|
|
if req.Header.LastBlockId.GetHash() == nil || req.Header.GetHeight() < 1 {
|
|
return
|
|
}
|
|
|
|
// Gas costs are handled within msg handler so costs should be ignored
|
|
ctx = ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
|
|
|
|
k.SetBlockHash(ctx, req.Header.LastBlockId.GetHash(), req.Header.GetHeight()-1)
|
|
|
|
// reset counters that are used on CommitStateDB.Prepare
|
|
k.Bloom = big.NewInt(0)
|
|
k.TxCount = 0
|
|
}
|
|
|
|
// EndBlock updates the accounts and commits state objects to the KV Store, while
|
|
// deleting the empty ones. It also sets the bloom filers for the request block to
|
|
// the store. The EVM end block logic doesn't update the validator set, thus it returns
|
|
// an empty slice.
|
|
func (k Keeper) EndBlock(ctx sdk.Context, req abci.RequestEndBlock) []abci.ValidatorUpdate {
|
|
// Gas costs are handled within msg handler so costs should be ignored
|
|
ctx = ctx.WithGasMeter(sdk.NewInfiniteGasMeter())
|
|
|
|
// Set the hash for the current height.
|
|
// NOTE: we set the hash here instead of on BeginBlock in order to set the final block prior to
|
|
// an upgrade. If we set it on BeginBlock the last block from prior to the upgrade wouldn't be
|
|
// included on the store.
|
|
hash := types.HashFromContext(ctx)
|
|
k.SetHeightHash(ctx, uint64(ctx.BlockHeight()), hash)
|
|
|
|
// Update account balances before committing other parts of state
|
|
k.UpdateAccounts(ctx)
|
|
|
|
// Commit state objects to KV store
|
|
if _, err := k.Commit(ctx, true); err != nil {
|
|
k.Logger(ctx).Error("failed to commit state objects", "error", err, "height", ctx.BlockHeight())
|
|
panic(err)
|
|
}
|
|
|
|
// Clear accounts cache after account data has been committed
|
|
k.ClearStateObjects(ctx)
|
|
|
|
// set the block bloom filter bytes to store
|
|
bloom := ethtypes.BytesToBloom(k.Bloom.Bytes())
|
|
k.SetBlockBloom(ctx, req.Height, bloom)
|
|
|
|
return []abci.ValidatorUpdate{}
|
|
}
|