mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-25 21:17:16 +00:00
445feaeef5
This commit implements EIP158 part 1, 2, 3 & 4 1. If an account is empty it's no longer written to the trie. An empty account is defined as (balance=0, nonce=0, storage=0, code=0). 2. Delete an empty account if it's touched 3. An empty account is redefined as either non-existent or empty. 4. Zero value calls and zero value suicides no longer consume the 25k reation costs. params: moved core/config to params Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
75 lines
2.9 KiB
Go
75 lines
2.9 KiB
Go
// Copyright 2016 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package core
|
|
|
|
import (
|
|
"bytes"
|
|
"math/big"
|
|
|
|
"github.com/ethereum/go-ethereum/core/state"
|
|
"github.com/ethereum/go-ethereum/core/types"
|
|
"github.com/ethereum/go-ethereum/params"
|
|
)
|
|
|
|
// ValidateDAOHeaderExtraData validates the extra-data field of a block header to
|
|
// ensure it conforms to DAO hard-fork rules.
|
|
//
|
|
// DAO hard-fork extension to the header validity:
|
|
// a) if the node is no-fork, do not accept blocks in the [fork, fork+10) range
|
|
// with the fork specific extra-data set
|
|
// b) if the node is pro-fork, require blocks in the specific range to have the
|
|
// unique extra-data set.
|
|
func ValidateDAOHeaderExtraData(config *params.ChainConfig, header *types.Header) error {
|
|
// Short circuit validation if the node doesn't care about the DAO fork
|
|
if config.DAOForkBlock == nil {
|
|
return nil
|
|
}
|
|
// Make sure the block is within the fork's modified extra-data range
|
|
limit := new(big.Int).Add(config.DAOForkBlock, params.DAOForkExtraRange)
|
|
if header.Number.Cmp(config.DAOForkBlock) < 0 || header.Number.Cmp(limit) >= 0 {
|
|
return nil
|
|
}
|
|
// Depending whether we support or oppose the fork, validate the extra-data contents
|
|
if config.DAOForkSupport {
|
|
if bytes.Compare(header.Extra, params.DAOForkBlockExtra) != 0 {
|
|
return ValidationError("DAO pro-fork bad block extra-data: 0x%x", header.Extra)
|
|
}
|
|
} else {
|
|
if bytes.Compare(header.Extra, params.DAOForkBlockExtra) == 0 {
|
|
return ValidationError("DAO no-fork bad block extra-data: 0x%x", header.Extra)
|
|
}
|
|
}
|
|
// All ok, header has the same extra-data we expect
|
|
return nil
|
|
}
|
|
|
|
// ApplyDAOHardFork modifies the state database according to the DAO hard-fork
|
|
// rules, transferring all balances of a set of DAO accounts to a single refund
|
|
// contract.
|
|
func ApplyDAOHardFork(statedb *state.StateDB) {
|
|
// Retrieve the contract to refund balances into
|
|
refund := statedb.GetOrNewStateObject(params.DAORefundContract)
|
|
|
|
// Move every DAO account and extra-balance account funds into the refund contract
|
|
for _, addr := range params.DAODrainList {
|
|
if account := statedb.GetStateObject(addr); account != nil {
|
|
refund.AddBalance(account.Balance())
|
|
account.SetBalance(new(big.Int))
|
|
}
|
|
}
|
|
}
|