laconicd/x/evm/abci.go
noot 28e28f2a7b
x/evm: fix EndBlock consensus failure (#334)
* add test for sending tx w/ 21000 gas

* improve rpc transfer test

* use ctx in EndBlock

* UpdateAccounts and ClearStateObjects with passed in context

* log ethereum address on error

Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>
Co-authored-by: Federico Kunze <federico.kunze94@gmail.com>
2020-06-22 12:07:35 -04:00

50 lines
1.3 KiB
Go

package evm
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"
)
// BeginBlock sets the block hash -> block height map and resets the Bloom filter and
// the transaction count to 0.
func BeginBlock(k Keeper, ctx sdk.Context, req abci.RequestBeginBlock) {
if req.Header.LastBlockId.GetHash() == nil || req.Header.GetHeight() < 1 {
return
}
k.SetBlockHash(ctx, req.Header.LastBlockId.GetHash(), req.Header.GetHeight()-1)
// reset counters
k.Bloom = big.NewInt(0)
k.TxCount = 0
}
// EndBlock updates the accounts and commits states objects to the KV Store.
//
func EndBlock(k Keeper, ctx sdk.Context, req abci.RequestEndBlock) []abci.ValidatorUpdate {
// Gas costs are handled within msg handler so costs should be ignored
ctx = ctx.WithBlockGasMeter(sdk.NewInfiniteGasMeter())
// Update account balances before committing other parts of state
k.UpdateAccounts(ctx)
// Commit state objects to KV store
_, err := k.Commit(ctx, true)
if err != nil {
panic(err)
}
// Clear accounts cache after account data has been committed
k.ClearStateObjects(ctx)
bloom := ethtypes.BytesToBloom(k.Bloom.Bytes())
k.SetBlockBloom(ctx, ctx.BlockHeight(), bloom)
return []abci.ValidatorUpdate{}
}