Documentation ¶
Index ¶
- Constants
- Variables
- type ChainConfig
- func (c *ChainConfig) GasTable(num *big.Int) GasTable
- func (c *ChainConfig) IsEIP150(num *big.Int) bool
- func (c *ChainConfig) IsEIP155(num *big.Int) bool
- func (c *ChainConfig) IsEIP158(num *big.Int) bool
- func (c *ChainConfig) IsHomestead(num *big.Int) bool
- func (c *ChainConfig) Rules(num *big.Int) Rules
- func (c *ChainConfig) String() string
- type GasTable
- type Rules
Constants ¶
const ( // These are the multipliers for ether denominations. // Example: To get the wei value of an amount in 'douglas', use // // new(big.Int).Mul(value, big.NewInt(params.Douglas)) // Wei = 1 Ada = 1e3 Babbage = 1e6 Shannon = 1e9 Szabo = 1e12 Finney = 1e15 Ether = 1e18 Einstein = 1e21 Douglas = 1e42 )
const ( MaximumExtraDataSize uint64 = 32 // Maximum size extra data may be after Genesis. ExpByteGas uint64 = 10 // Times ceil(log256(exponent)) for the EXP instruction. SloadGas uint64 = 50 // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added. CallValueTransferGas uint64 = 9000 // Paid for CALL when the value transfer is non-zero. CallNewAccountGas uint64 = 25000 // Paid for CALL when the destination address didn't exist prior. TxGas uint64 = 21000 // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions. TxGasContractCreation uint64 = 53000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions. TxDataZeroGas uint64 = 4 // Per byte of data attached to a transaction that equals zero. NOTE: Not payable on data of calls between transactions. QuadCoeffDiv uint64 = 512 // Divisor for the quadratic particle of the memory cost equation. SstoreSetGas uint64 = 20000 // Once per SLOAD operation. LogDataGas uint64 = 8 // Per byte in a LOG* operation's data. CallStipend uint64 = 2300 // Free gas given at beginning of call. EcrecoverGas uint64 = 3000 // Sha256WordGas uint64 = 12 // Sha3Gas uint64 = 30 // Once per SHA3 operation. Sha256Gas uint64 = 60 // IdentityWordGas uint64 = 3 // Sha3WordGas uint64 = 6 // Once per word of the SHA3 operation's data. SstoreResetGas uint64 = 5000 // Once per SSTORE operation if the zeroness changes from zero. SstoreClearGas uint64 = 5000 // Once per SSTORE operation if the zeroness doesn't change. SstoreRefundGas uint64 = 15000 // Once per SSTORE operation if the zeroness changes to zero. JumpdestGas uint64 = 1 // Refunded gas, once per SSTORE operation if the zeroness changes to zero. IdentityGas uint64 = 15 // EpochDuration uint64 = 30000 // Duration between proof-of-work epochs. CallGas uint64 = 40 // Once per CALL operation & message call transaction. CreateDataGas uint64 = 200 // Ripemd160Gas uint64 = 600 // Ripemd160WordGas uint64 = 120 // CallCreateDepth uint64 = 1024 // Maximum depth of call/create stack. ExpGas uint64 = 10 // Once per EXP instruction LogGas uint64 = 375 // Per LOG* operation. CopyGas uint64 = 3 // StackLimit uint64 = 1024 // Maximum size of VM stack allowed. TierStepGas uint64 = 0 // Once per operation, for a selection of them. LogTopicGas uint64 = 375 // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas. CreateGas uint64 = 32000 // Once per CREATE operation & contract-creation transaction. SuicideRefundGas uint64 = 24000 // Refunded following a suicide operation. MemoryGas uint64 = 3 // Times the address of the (highest referenced byte in memory + 1). NOTE: referencing happens on read, write and in instructions such as RETURN and CALL. TxDataNonZeroGas uint64 = 68 // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions. MaxCodeSize = 24576 )
const ( VersionMajor = 1 // Major version component of the current release VersionMinor = 6 // Minor version component of the current release VersionPatch = 0 // Patch version component of the current release VersionMeta = "unstable" // Version metadata to append to the version string )
Variables ¶
var ( TestChainConfig = &ChainConfig{big.NewInt(1), new(big.Int), new(big.Int), true, new(big.Int), common.Hash{}, new(big.Int), new(big.Int)} TestRules = TestChainConfig.Rules(new(big.Int)) )
var ( // GasTableHomestead contain the gas prices for // the homestead phase. GasTableHomestead = GasTable{ ExtcodeSize: 20, ExtcodeCopy: 20, Balance: 20, SLoad: 50, Calls: 40, Suicide: 0, ExpByte: 10, } // GasTableHomestead contain the gas re-prices for // the homestead phase. // // TODO rename to GasTableEIP150 GasTableHomesteadGasRepriceFork = GasTable{ ExtcodeSize: 700, ExtcodeCopy: 700, Balance: 400, SLoad: 200, Calls: 700, Suicide: 5000, ExpByte: 10, CreateBySuicide: 25000, } GasTableEIP158 = GasTable{ ExtcodeSize: 700, ExtcodeCopy: 700, Balance: 400, SLoad: 200, Calls: 700, Suicide: 5000, ExpByte: 50, CreateBySuicide: 25000, } )
var ( GasLimitBoundDivisor = big.NewInt(1024) // The bound divisor of the gas limit, used in update calculations. MinGasLimit = big.NewInt(5000) // Minimum the gas limit may ever be. GenesisGasLimit = big.NewInt(4712388) // Gas limit of the Genesis block. TargetGasLimit = new(big.Int).Set(GenesisGasLimit) // The artificial target DifficultyBoundDivisor = big.NewInt(2048) // The bound divisor of the difficulty, used in the update calculations. GenesisDifficulty = big.NewInt(131072) // Difficulty of the Genesis block. MinimumDifficulty = big.NewInt(131072) // The minimum that the difficulty may ever be. DurationLimit = big.NewInt(13) // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not. )
var ( TestNetGenesisHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d") // Testnet genesis hash to enforce below configs on MainNetGenesisHash = common.HexToHash("0xd4e56740f876aef8c010b86a40d5f56745a118d0906a34e69aec8c0db1cb8fa3") // Mainnet genesis hash to enforce below configs on TestNetHomesteadBlock = big.NewInt(0) // Testnet homestead block MainNetHomesteadBlock = big.NewInt(1150000) // Mainnet homestead block TestNetHomesteadGasRepriceBlock = big.NewInt(0) // Testnet gas reprice block MainNetHomesteadGasRepriceBlock = big.NewInt(2463000) // Mainnet gas reprice block TestNetHomesteadGasRepriceHash = common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d") // Testnet gas reprice block hash (used by fast sync) MainNetHomesteadGasRepriceHash = common.HexToHash("0x2086799aeebeae135c246c65021c82b4e15a2c451340993aacfd2751886514f0") // Mainnet gas reprice block hash (used by fast sync) TestNetSpuriousDragon = big.NewInt(10) MainNetSpuriousDragon = big.NewInt(2675000) TestNetChainID = big.NewInt(3) // Test net default chain ID MainNetChainID = big.NewInt(1) // main net default chain ID )
var AllProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), nil, false, big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0)}
AllProtocolChanges contains every protocol change (EIPs) introduced and accepted by the Ethereum core developers.
This configuration is intentionally not using keyed fields. This configuration must *always* have all forks enabled, which means that all fields must be set at all times. This forces anyone adding flags to the config to also have to set these fields.
var DAODrainList []common.Address
DAODrainList is the list of accounts whose full balances will be moved into a refund contract at the beginning of the dao-fork block.
var DAOForkBlockExtra = common.FromHex("0x64616f2d686172642d666f726b")
DAOForkBlockExtra is the block header extra-data field to set for the DAO fork point and a number of consecutive blocks to allow fast/light syncers to correctly pick the side they want ("dao-hard-fork").
var DAOForkExtraRange = big.NewInt(10)
DAOForkExtraRange is the number of consecutive blocks from the DAO fork point to override the extra-data in to prevent no-fork attacks.
var DAORefundContract = common.HexToAddress("0xbf4ed7b27f1d666546e30d74d50d173d20bca754")
DAORefundContract is the address of the refund contract to send DAO balances to.
var DiscoveryV5Bootnodes = []string{
"enode://0cc5f5ffb5d9098c8b8c62325f3797f56509bff942704687b6530992ac706e2cb946b90a34f1f19548cd3c7baccbcaea354531e5983c7d1bc0dee16ce4b6440b@40.118.3.223:30305",
"enode://1c7a64d76c0334b0418c004af2f67c50e36a3be60b5e4790bdac0439d21603469a85fad36f2473c9a80eb043ae60936df905fa28f1ff614c3e5dc34f15dcd2dc@40.118.3.223:30308",
"enode://85c85d7143ae8bb96924f2b54f1b3e70d8c4d367af305325d30a61385a432f247d2c75c45c6b4a60335060d072d7f5b35dd1d4c45f76941f62a4f83b6e75daaf@40.118.3.223:30309",
}
DiscoveryV5Bootnodes are the enode URLs of the P2P bootstrap nodes for the experimental RLPx v5 topic-discovery network.
var MainNetDAOForkBlock = big.NewInt(1920000)
MainNetDAOForkBlock is the block number where the DAO hard-fork commences on the Ethereum main network.
var MainnetBootnodes = []string{
"enode://a979fb575495b8d6db44f750317d0f4622bf4c2aa3365d6af7c284339968eef29b69ad0dce72a4d8db5ebb4968de0e3bec910127f134779fbcb0cb6d3331163c@52.16.188.185:30303",
"enode://3f1d12044546b76342d59d4a05532c14b85aa669704bfe1f864fe079415aa2c02d743e03218e57a33fb94523adb54032871a6c51b2cc5514cb7c7e35b3ed0a99@13.93.211.84:30303",
"enode://78de8a0916848093c73790ead81d1928bec737d565119932b98c6b100d944b7a95e94f847f689fc723399d2e31129d182f7ef3863f2b4c820abbf3ab2722344d@191.235.84.50:30303",
"enode://158f8aab45f6d19c6cbf4a089c2670541a8da11978a2f90dbf6a502a4a3bab80d288afdbeb7ec0ef6d92de563767f3b1ea9e8e334ca711e9f8e2df5a0385e8e6@13.75.154.138:30303",
"enode://1118980bf48b0a3640bdba04e0fe78b1add18e1cd99bf22d53daac1fd9972ad650df52176e7c7d89d1114cfef2bc23a2959aa54998a46afcf7d91809f0855082@52.74.57.123:30303",
"enode://979b7fa28feeb35a4741660a16076f1943202cb72b6af70d327f053e248bab9ba81760f39d0701ef1d8f89cc1fbd2cacba0710a12cd5314d5e0c9021aa3637f9@5.1.83.226:30303",
}
MainnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the main Ethereum network.
var MainnetChainConfig = &ChainConfig{ ChainId: MainNetChainID, HomesteadBlock: MainNetHomesteadBlock, DAOForkBlock: MainNetDAOForkBlock, DAOForkSupport: true, EIP150Block: MainNetHomesteadGasRepriceBlock, EIP150Hash: MainNetHomesteadGasRepriceHash, EIP155Block: MainNetSpuriousDragon, EIP158Block: MainNetSpuriousDragon, }
MainnetChainConfig is the chain parameters to run a node on the main network.
var TestNetDAOForkBlock *big.Int
TestNetDAOForkBlock is the block number where the DAO hard-fork commences on the Ethereum test network. It's enforced nil since it was decided not to do a testnet transition.
var TestnetBootnodes = []string{
"enode://e4533109cc9bd7604e4ff6c095f7a1d807e15b38e9bfeb05d3b7c423ba86af0a9e89abbf40bd9dde4250fef114cd09270fa4e224cbeef8b7bf05a51e8260d6b8@94.242.229.4:40404",
"enode://8c336ee6f03e99613ad21274f269479bf4413fb294d697ef15ab897598afb931f56beb8e97af530aee20ce2bcba5776f4a312bc168545de4d43736992c814592@94.242.229.203:30303",
}
TestnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the Morden test network.
var TestnetChainConfig = &ChainConfig{ ChainId: big.NewInt(3), HomesteadBlock: big.NewInt(0), DAOForkBlock: nil, DAOForkSupport: true, EIP150Block: big.NewInt(0), EIP150Hash: common.HexToHash("0x41941023680923e0fe4d74a34bdac8141f2540e3ae90623718e47d66d1ca4a2d"), EIP155Block: big.NewInt(10), EIP158Block: big.NewInt(10), }
TestnetChainConfig is the chain parameters to run a node on the test network.
var Version = func() string { v := fmt.Sprintf("%d.%d.%d", VersionMajor, VersionMinor, VersionPatch) if VersionMeta != "" { v += "-" + VersionMeta } return v }()
Version holds the textual version string.
Functions ¶
This section is empty.
Types ¶
type ChainConfig ¶
type ChainConfig struct { ChainId *big.Int `json:"chainId"` // Chain id identifies the current chain and is used for replay protection HomesteadBlock *big.Int `json:"homesteadBlock"` // Homestead switch block (nil = no fork, 0 = already homestead) DAOForkBlock *big.Int `json:"daoForkBlock"` // TheDAO hard-fork switch block (nil = no fork) DAOForkSupport bool `json:"daoForkSupport"` // Whether the nodes supports or opposes the DAO hard-fork // EIP150 implements the Gas price changes (https://github.com/ethereum/EIPs/issues/150) EIP150Block *big.Int `json:"eip150Block"` // EIP150 HF block (nil = no fork) EIP150Hash common.Hash `json:"eip150Hash"` // EIP150 HF hash (fast sync aid) EIP155Block *big.Int `json:"eip155Block"` // EIP155 HF block EIP158Block *big.Int `json:"eip158Block"` // EIP158 HF block }
ChainConfig is the core config which determines the blockchain settings.
ChainConfig is stored in the database on a per block basis. This means that any network, identified by its genesis block, can have its own set of configuration options.
func (*ChainConfig) GasTable ¶
func (c *ChainConfig) GasTable(num *big.Int) GasTable
GasTable returns the gas table corresponding to the current phase (homestead or homestead reprice).
The returned GasTable's fields shouldn't, under any circumstances, be changed.
func (*ChainConfig) IsHomestead ¶
func (c *ChainConfig) IsHomestead(num *big.Int) bool
IsHomestead returns whether num is either equal to the homestead block or greater.
func (*ChainConfig) String ¶
func (c *ChainConfig) String() string
String implements the Stringer interface.
type GasTable ¶
type GasTable struct { ExtcodeSize uint64 ExtcodeCopy uint64 Balance uint64 SLoad uint64 Calls uint64 Suicide uint64 ExpByte uint64 // CreateBySuicide occurs when the // refunded account is one that does // not exist. This logic is similar // to call. May be left nil. Nil means // not charged. CreateBySuicide uint64 }