forked from cerc-io/plugeth
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>
85 lines
2.9 KiB
Go
85 lines
2.9 KiB
Go
// Copyright 2016 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package params
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import (
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"math/big"
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"github.com/ethereum/go-ethereum/common"
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)
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// ChainConfig is the core config which determines the blockchain settings.
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//
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// ChainConfig is stored in the database on a per block basis. This means
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// that any network, identified by its genesis block, can have its own
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// set of configuration options.
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type ChainConfig struct {
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HomesteadBlock *big.Int `json:"homesteadBlock"` // Homestead switch block (nil = no fork, 0 = already homestead)
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DAOForkBlock *big.Int `json:"daoForkBlock"` // TheDAO hard-fork switch block (nil = no fork)
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DAOForkSupport bool `json:"daoForkSupport"` // Whether the nodes supports or opposes the DAO hard-fork
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// EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150)
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EIP150Block *big.Int `json:"EIP150Block"` // EIP150 HF block (nil = no fork)
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EIP150Hash common.Hash `json:"EIP150Hash"` // EIP150 HF hash (fast sync aid)
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EIP158Block *big.Int `json:"EIP158Block"` // EIP158 HF block
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}
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var TestChainConfig = &ChainConfig{new(big.Int), new(big.Int), true, new(big.Int), common.Hash{}, new(big.Int)}
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// IsHomestead returns whether num is either equal to the homestead block or greater.
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func (c *ChainConfig) IsHomestead(num *big.Int) bool {
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if c.HomesteadBlock == nil || num == nil {
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return false
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}
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return num.Cmp(c.HomesteadBlock) >= 0
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}
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// GasTable returns the gas table corresponding to the current phase (homestead or homestead reprice).
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//
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// The returned GasTable's fields shouldn't, under any circumstances, be changed.
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func (c *ChainConfig) GasTable(num *big.Int) GasTable {
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if num == nil {
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return GasTableHomestead
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}
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switch {
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case c.EIP158Block != nil && num.Cmp(c.EIP158Block) >= 0:
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return GasTableEIP158
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case c.EIP150Block != nil && num.Cmp(c.EIP150Block) >= 0:
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return GasTableHomesteadGasRepriceFork
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default:
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return GasTableHomestead
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}
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}
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func (c *ChainConfig) IsEIP150(num *big.Int) bool {
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if c.EIP150Block == nil || num == nil {
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return false
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}
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return num.Cmp(c.EIP150Block) >= 0
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}
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func (c *ChainConfig) IsEIP158(num *big.Int) bool {
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if c.EIP158Block == nil || num == nil {
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return false
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}
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return num.Cmp(c.EIP158Block) >= 0
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}
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