params

package
v1.1.3 Latest Latest
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 Go to latest Published: Jul 15, 2019 License: GPL-3.0 Imports: 3 Imported by: 0

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Index

Constants

View Source 
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
)
View Source 
const (
	MaximumExtraDataSize  uint64 = 32    // Maximum size extra data may be after Genesis.
	ExpByteGas            uint64 = 2     // Times ceil(log256(exponent)) for the EXP instruction.
	SloadGas              uint64 = 12    // Multiplied by the number of 32-byte words that are copied (round up) for any *COPY operation and added.
	CallValueTransferGas  uint64 = 2000  // Paid for CALL when the value transfer is non-zero.
	CallNewAccountGas     uint64 = 6000  // Paid for CALL when the destination address didn't exist prior.
	TxGas                 uint64 = 5000  // Per transaction not creating a contract. NOTE: Not payable on data of calls between transactions.
	TxGasContractCreation uint64 = 10000 // Per transaction that creates a contract. NOTE: Not payable on data of calls between transactions.
	TxDataZeroGas         uint64 = 1     // 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 = 5000  // Once per SLOAD operation.
	LogDataGas            uint64 = 2     // Per byte in a LOG* operation's data.
	CallStipend           uint64 = 600   // Free gas given at beginning of call.

	Sha3Gas          uint64 = 8     // Once per SHA3 operation.
	Sha3WordGas      uint64 = 2     // Once per word of the SHA3 operation's data.
	SstoreResetGas   uint64 = 1200  // Once per SSTORE operation if the zeroness changes from zero.
	SstoreClearGas   uint64 = 1200  // Once per SSTORE operation if the zeroness doesn't change.
	SstoreRefundGas  uint64 = 3000  // 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.
	EpochDuration    uint64 = 30000 // Duration between proof-of-work epochs.
	CallGas          uint64 = 10    // Once per CALL operation & message call transaction.
	CreateDataGas    uint64 = 50    //
	CallCreateDepth  uint64 = 1024  // Maximum depth of call/create stack.
	ExpGas           uint64 = 3     // Once per EXP instruction
	LogGas           uint64 = 80    // Per LOG* operation.
	CopyGas          uint64 = 1     //
	StackLimit       uint64 = 1024  // Maximum size of VM stack allowed.
	TierStepGas      uint64 = 0     // Once per operation, for a selection of them.
	LogTopicGas      uint64 = 80    // Multiplied by the * of the LOG*, per LOG transaction. e.g. LOG0 incurs 0 * c_txLogTopicGas, LOG4 incurs 4 * c_txLogTopicGas.
	CreateGas        uint64 = 8000  // Once per CREATE operation & contract-creation transaction.
	SuicideRefundGas uint64 = 6000  // Refunded following a suicide operation.
	MemoryGas        uint64 = 1     // 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 = 20    // Per byte of data attached to a transaction that is not equal to zero. NOTE: Not payable on data of calls between transactions.

	MaxCodeSize = 196608 // Maximum bytecode to permit for a contract

	EcrecoverGas            uint64 = 800   // Elliptic curve sender recovery gas price
	Sha256BaseGas           uint64 = 15    // Base price for a SHA256 operation
	Sha256PerWordGas        uint64 = 3     // Per-word price for a SHA256 operation
	Ripemd160BaseGas        uint64 = 150   // Base price for a RIPEMD160 operation
	Ripemd160PerWordGas     uint64 = 30    // Per-word price for a RIPEMD160 operation
	IdentityBaseGas         uint64 = 4     // Base price for a data copy operation
	IdentityPerWordGas      uint64 = 1     // Per-work price for a data copy operation
	ModExpQuadCoeffDiv      uint64 = 20    // Divisor for the quadratic particle of the big int modular exponentiation
	Bn256AddGas             uint64 = 120   // Gas needed for an elliptic curve addition
	Bn256ScalarMulGas       uint64 = 10000 // Gas needed for an elliptic curve scalar multiplication
	Bn256PairingBaseGas     uint64 = 25000 // Base price for an elliptic curve pairing check
	Bn256PairingPerPointGas uint64 = 20000 // Per-point price for an elliptic curve pairing check
)
View Source 
const (
	VersionMajor = 1        // Major version component of the current release
	VersionMinor = 1        // Minor version component of the current release
	VersionPatch = 3        // Patch version component of the current release
	VersionMeta  = "stable" // Version metadata to append to the version string
)
View Source 
const (
	// BloomBitsBlocks is the number of blocks a single bloom bit section vector
	// contains.
	BloomBitsBlocks uint64 = 4096
)

Variables

View Source 
var (
	MainnetGenesisHash = common.HexToHash("0xc842bc77b01cb94f014e95e41dbcd62e199ae9576163a1e18c70c11d50c7f6e5") // Mainnet genesis hash to enforce below configs on
	TestnetGenesisHash = common.HexToHash("0x5dd82c73e5a6ecda153ce43948a9100e5df6c8b1cc2bf80a42cb09567254e1e6") // Testnet genesis hash to enforce below configs on
)
View Source 
var (
	// MainnetChainConfig is the chain parameters to run a node on the main network.
	MainnetChainConfig = &ChainConfig{
		ChainId:        big.NewInt(16),
		HomesteadBlock: big.NewInt(1),
		EIP150Block:    big.NewInt(2),
		EIP150Hash:     common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"),
		EIP155Block:    big.NewInt(3),
		EIP158Block:    big.NewInt(3),
		ByzantiumBlock: big.NewInt(4),

		Ethash: new(EthashConfig),
	}

	// TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network.
	TestnetChainConfig = &ChainConfig{
		ChainId:        big.NewInt(17),
		HomesteadBlock: big.NewInt(0),
		EIP150Block:    big.NewInt(0),
		EIP150Hash:     common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"),
		EIP155Block:    big.NewInt(10),
		EIP158Block:    big.NewInt(10),
		ByzantiumBlock: big.NewInt(20),

		Ethash: new(EthashConfig),
	}

	// RinkebyChainConfig contains the chain parameters to run a node on the Rinkeby test network.
	RinkebyChainConfig = &ChainConfig{
		ChainId:        big.NewInt(18),
		HomesteadBlock: big.NewInt(1),
		EIP150Block:    big.NewInt(2),
		EIP150Hash:     common.HexToHash("0x0000000000000000000000000000000000000000000000000000000000000000"),
		EIP155Block:    big.NewInt(3),
		EIP158Block:    big.NewInt(3),
		ByzantiumBlock: big.NewInt(20),
	}

	// AllProtocolChanges contains every protocol change (EIPs)
	// introduced and accepted by the Wtc 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.
	AllProtocolChanges = &ChainConfig{big.NewInt(1337), big.NewInt(0), big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), new(EthashConfig)}
	TestChainConfig    = &ChainConfig{big.NewInt(1), big.NewInt(0), big.NewInt(0), common.Hash{}, big.NewInt(0), big.NewInt(0), big.NewInt(0), new(EthashConfig)}
	TestRules          = TestChainConfig.Rules(new(big.Int))
)
View Source 
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.
	GasTableEIP150 = 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,
	}
)
View Source 
var (
	GasLimitBoundDivisor   = big.NewInt(2048)                  // The bound divisor of the gas limit, used in update calculations.
	MinGasLimit            = big.NewInt(78000000000)           // Minimum the gas limit may ever be.
	GenesisGasLimit        = big.NewInt(78000000000)           // 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(6)                     // The decision boundary on the blocktime duration used to determine whether difficulty should go up or not.
	// MinGasFloorCreateContract = big.NewInt(50)               // The floor of gas to create contract. add by disy.yin disy.yin@gmail.com 2018-12-10
	AddedRewardForMN   = big.NewInt(5000)          //  added reward for MN
	POSPhaseOneBalance = big.NewInt(5000000000)    // 5000.000000 WTC
	POSPhaseTwoBalance = big.NewInt(500000000000)  // 500000.000000 WTC
	HardForkV1         = big.NewInt(149500)        // HardForkV1 fork 149500
	HardForkV2         = big.NewInt(175366)        // HardForkV2 fork 175366
	HardForkV2diff     = big.NewInt(4332176356141) // HardForkV2 fork difficulty
	HardForkV3         = big.NewInt(221500)        // HardForkV3 fork

	MinGasLimitV3    = big.NewInt(150000000) // Minimum the gas limit may ever be.
	TargetGasLimitV3 = big.NewInt(150000000) // The artificial target
)
View Source 
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").

View Source 
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.

View Source 
var DAORefundContract = common.HexToAddress("0xbf4ed7b27f1d666546e30d74d50d173d20bca754")

DAORefundContract is the address of the refund contract to send DAO balances to.

View Source 
var DiscoveryV5Bootnodes = []string{}

DiscoveryV5Bootnodes are the enode URLs of the P2P bootstrap nodes for the experimental RLPx v5 topic-discovery network.

View Source 
var MainnetBootnodes = []string{
	"enode://e1adaa6427fa63b7440f03188ab2f2e894593f41727a799d05bb08542b185412b96aca0af115d9b5e7628a94b1ce20ae2a30362fe95409ccaa03c7c12faf2d67@27.102.130.163:10101",
	"enode://bc75d1861480101805e2f9277543421c45821dfeb26a19f64a899e7752135f624b7e72374086dbbdeac346ee85302db33ae67b357758bfa390474938353e7429@47.88.226.40:10101",
	"enode://9bf63165d038b4739db680fbb510e9596164b0fc65f19bf53d15c112b485b09328f6c63925a3cfc5aff5ff44d5f8eecd1ec72a26c746a3d34fa20aa944996730@47.88.62.219:10101",

	"enode://aaaae77d11539c63d16c43dbc35734a255e9f97676241d866135a50afe40acc54d566f61c657d152b5caa9039fe9a076ac24d8ad01abd57cc4571279806a9a82@45.76.135.125:10101",
	"enode://cc9c8e97a669cce1af7d3e9acf8c7bf51505334abda1581a2a7cf811290ee7cdc91971561b3261b7560ec1919b30ea7c74239dbaee2bafce6d6b4b319fe5ab05@208.167.249.242:10101",
	"enode://6559b12fda8f90242236e43afe5fe978b822467074260f7f6583d01fb0d31de7db87aa776d3c6f25f1b0bf42f3415641943ea7fae0af0c5b78647a29c3d69168@209.250.237.179:10101",

	"enode://18fb4bbd45745468ff6a89375aa33687aa205741092f62c858c999a2df6ef9156d94585e4cfa0dd17a9c5d949a1f583d8bd7c75e591b6571161937c9e39d81ff@47.95.205.144:10101",
	"enode://7248a6f713007c575e4de3fbf7bc2f8595ad1e974003591b2d216b75bd4ddfeb6e55b56d0fbda89d703e2c5da31a837d91b4ce9b77b0ed7a930a0826150bab08@47.111.4.61:10101",
	"enode://0a36aac3e150d251dedb71164b0efd10fb13c2b140f0102b3b24d0f58ea8d894879d47f70012cc7d0041f4ae4fa624709872e598996e41cbaea218c24752c480@47.112.118.220:10101",
}

MainnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the main Wtc network.

View Source 
var RinkebyBootnodes = []string{}

RinkebyBootnodes are the enode URLs of the P2P bootstrap nodes running on the Rinkeby test network.

View Source 
var RinkebyV5Bootnodes = []string{}

RinkebyV5Bootnodes are the enode URLs of the P2P bootstrap nodes running on the Rinkeby test network for the experimental RLPx v5 topic-discovery network.

View Source 
var TestnetBootnodes = []string{}

TestnetBootnodes are the enode URLs of the P2P bootstrap nodes running on the Ropsten test network.

View Source 
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

func DAODrainList 

func 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.

func VersionWithCommit 

func VersionWithCommit(gitCommit string) string

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,omitempty"` // Homestead switch block (nil = no fork, 0 = already homestead)

	// EIP150 implements the Gas price changes (https://github.com/wtc/EIPs/issues/150)
	EIP150Block *big.Int    `json:"eip150Block,omitempty"` // EIP150 HF block (nil = no fork)
	EIP150Hash  common.Hash `json:"eip150Hash,omitempty"`  // EIP150 HF hash (fast sync aid)

	EIP155Block *big.Int `json:"eip155Block,omitempty"` // EIP155 HF block
	EIP158Block *big.Int `json:"eip158Block,omitempty"` // EIP158 HF block

	ByzantiumBlock *big.Int `json:"byzantiumBlock,omitempty"` // Byzantium switch block (nil = no fork, 0 = alraedy on homestead)

	// Various consensus engines
	Ethash *EthashConfig `json:"ethash,omitempty"`
}

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) CheckCompatible 

func (c *ChainConfig) CheckCompatible(newcfg *ChainConfig, height uint64) *ConfigCompatError

CheckCompatible checks whether scheduled fork transitions have been imported with a mismatching chain configuration.

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) IsByzantium 

func (c *ChainConfig) IsByzantium(num *big.Int) bool

func (*ChainConfig) IsEIP150 

func (c *ChainConfig) IsEIP150(num *big.Int) bool

func (*ChainConfig) IsEIP155 

func (c *ChainConfig) IsEIP155(num *big.Int) bool

func (*ChainConfig) IsEIP158 

func (c *ChainConfig) IsEIP158(num *big.Int) bool

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) Rules 

func (c *ChainConfig) Rules(num *big.Int) Rules

func (*ChainConfig) String 

func (c *ChainConfig) String() string

String implements the fmt.Stringer interface.

type ConfigCompatError 

type ConfigCompatError struct {
	What string
	// block numbers of the stored and new configurations
	StoredConfig, NewConfig *big.Int
	// the block number to which the local chain must be rewound to correct the error
	RewindTo uint64
}

ConfigCompatError is raised if the locally-stored blockchain is initialised with a ChainConfig that would alter the past.

func (*ConfigCompatError) Error 

func (err *ConfigCompatError) Error() string

type EthashConfig 

type EthashConfig struct{}

EthashConfig is the consensus engine configs for proof-of-work based sealing.

func (*EthashConfig) String 

func (c *EthashConfig) String() string

String implements the stringer interface, returning the consensus engine details.

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
}

type Rules 

type Rules struct {
	ChainId                                   *big.Int
	IsHomestead, IsEIP150, IsEIP155, IsEIP158 bool
	IsByzantium                               bool
}

Rules wraps ChainConfig and is merely syntatic sugar or can be used for functions that do not have or require information about the block.

Rules is a one time interface meaning that it shouldn't be used in between transition phases.

Source Files

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