params

package
v0.6.4-alpha.3 Latest Latest
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 Go to latest Published: Oct 22, 2019 License: GPL-3.0 Imports: 3 Imported by: 69

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Index

Constants

View Source 
const (
	Wei      = 1
	Kwei     = 1e3
	Mwei     = 1e6
	Gwei     = 1e9
	Microvnt = 1e12
	Millivnt = 1e15
	Vnt      = 1e18
)

These are the multipliers for vnt denominations. Example: To get the wei value of an amount in 'douglas', use 

new(big.Int).Mul(value, big.NewInt(params.Douglas))
View Source 
const (
	GasLimitBoundDivisor uint64 = 1024    // The bound divisor of the gas limit, used in update calculations.
	MinGasLimit          uint64 = 5000    // Minimum the gas limit may ever be.
	GenesisGasLimit      uint64 = 4712388 // Gas limit of the Genesis block.

	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.

	Sha3Gas          uint64 = 30    // Once per SHA3 operation.
	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.
	EpochDuration    uint64 = 30000 // Duration between proof-of-work epochs.
	CallGas          uint64 = 40    // Once per CALL operation & message call transaction.
	CreateDataGas    uint64 = 200   //
	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 // Maximum bytecode to permit for a contract

	EcrecoverGas            uint64 = 3000   // Elliptic curve sender recovery gas price
	Sha256BaseGas           uint64 = 60     // Base price for a SHA256 operation
	Sha256PerWordGas        uint64 = 12     // Per-word price for a SHA256 operation
	Ripemd160BaseGas        uint64 = 600    // Base price for a RIPEMD160 operation
	Ripemd160PerWordGas     uint64 = 120    // Per-word price for a RIPEMD160 operation
	IdentityBaseGas         uint64 = 15     // Base price for a data copy operation
	IdentityPerWordGas      uint64 = 3      // Per-work price for a data copy operation
	ModExpQuadCoeffDiv      uint64 = 20     // Divisor for the quadratic particle of the big int modular exponentiation
	Bn256AddGas             uint64 = 500    // Gas needed for an elliptic curve addition
	Bn256ScalarMulGas       uint64 = 40000  // Gas needed for an elliptic curve scalar multiplication
	Bn256PairingBaseGas     uint64 = 100000 // Base price for an elliptic curve pairing check
	Bn256PairingPerPointGas uint64 = 80000  // Per-point price for an elliptic curve pairing check
)
View Source 
const (
	VersionMajor = 0         // Major version component of the current release
	VersionMinor = 6         // Minor version component of the current release
	VersionPatch = 3         // Patch version component of the current release
	VersionMeta  = "alpha.1" // 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 (
	// MainnetChainConfig is the chain parameters to run a node on the main network.
	MainnetChainConfig = &ChainConfig{
		ChainID: big.NewInt(1),
		Dpos: &DposConfig{
			Period:       2,
			WitnessesNum: 19,
			WitnessesUrl: []string{
				"/ip4/47.106.71.114/tcp/3001/ipfs/1kHfbk8u12U1HSyaqAe6f622wVMESHcvFZ8VcbGKwsrtT6H",
				"/ip4/47.108.69.101/tcp/3001/ipfs/1kHb7UpvD2zbEgCCPzboTtJLENQ1YhEZ1H2A7QNTb18sHd4",
				"/ip4/47.108.67.119/tcp/3001/ipfs/1kHjhzoNTxEpFvRky1oVvCUAPBUuGzBvBcXmkroDU9NhACg",
				"/ip4/39.100.143.156/tcp/3001/ipfs/1kHG1essWxbjSUjwKMrJcva6Y7XfPoBN86pUemd4wnd2X2A",
				"/ip4/118.190.59.122/tcp/3001/ipfs/1kHBXTtDX4JqStm4qBNCcCZar9isCyu74BPgX6b2odm7zw7",

				"/ip4/118.190.59.100/tcp/3001/ipfs/1kHWbCuCgjLnERsaVr7FCSAWFiA7Sx1CdzstMQKKkEWdYSr",
				"/ip4/47.56.69.191/tcp/3001/ipfs/1kHcupmVj3eLe6QdgrXRn5qetpQQc4XhYc6LXNhQUkRCDK5",
				"/ip4/39.97.171.233/tcp/3001/ipfs/1kHDnV8YSUrHNLf6NGWY7QHxBjMLnKPxKFKvMdPLt1Gg7a6",
				"/ip4/47.103.107.188/tcp/3001/ipfs/1kHTKpK29Kw2EvJ3C817yn6wNDgpXw6oWAkUz8AzAozrVHD",
				"/ip4/47.103.57.160/tcp/3001/ipfs/1kHD3RiEFGZE2SQQgGhX1yzipcR8sE6cSaTj3Xi1yvF1EBL",

				"/ip4/47.254.235.57/tcp/3001/ipfs/1kHMwGapAtV92rXgkxRx4dgjUZnXVtE6wUa8Bk3yzFYLz4h",
				"/ip4/120.77.236.120/tcp/3001/ipfs/1kHHW1DrdwETgtZmDdERZEDgKiAfP2SDfxz2oKuzjuJK2B9",
				"/ip4/47.111.131.2/tcp/3001/ipfs/1kHCcTMZ8EjRm23nffDsYEEARohWwF4ks6zdsaBs3JbzKnA",
				"/ip4/47.88.217.237/tcp/3001/ipfs/1kHVYJ6tckDB5gChvDFo46esBWzz6aWsMaEXfxJPNwruHWZ",
				"/ip4/47.91.19.11/tcp/3001/ipfs/1kHBa9E1onVKmruWvefJHSNFGokkNc3ESZebnq2oJFRDFDG",

				"/ip4/47.254.20.76/tcp/3001/ipfs/1kHKUGfEQ4nzpWG4SkQAUPicrKHCVo32WTgNEQbM75rNEbx",
				"/ip4/47.93.191.135/tcp/3001/ipfs/1kHVzyb8mczCYNB3suPCXac7HMPEc4XyvibHE2hQsh8ehEk",
				"/ip4/101.132.191.42/tcp/3001/ipfs/1kHCoMGo8ANpjFNMyYFZLTHruBJ5DrAXYVBvfQP2CZWKf6h",
				"/ip4/39.104.62.26/tcp/3001/ipfs/1kHHvSatMYVHDdDFNmMyta8tNY4c4VvtifkBAxfjNG7wSpU",
			},
		},
	}

	MainnetChainWitnesses = []common.Address{
		common.HexToAddress("0x91837ff26639700c9688cf8f3fe92bd8b2ec806d"),
		common.HexToAddress("0x3c60a032ba3c6177e50188748e55e5894fb241e4"),
		common.HexToAddress("0xaa2b5f39fb2a4aee56db3ee19567f699d30df1a1"),
		common.HexToAddress("0x61a6e04c737483d72c20de6e71dd8cbb6f6c747d"),
		common.HexToAddress("0x186bae02dc3444d2bb3d39504fefdc9754860481"),

		common.HexToAddress("0xf4c8fd44490493000b8776fd1597752bd9ede431"),
		common.HexToAddress("0x4e94885ed5cfe31a00c7496176f59fdc5e5c7a71"),
		common.HexToAddress("0x4b47c3262a9d2c309b692c9220898ff728054c00"),
		common.HexToAddress("0x31ba9c8cf34d7cc0957a95744b245322af427786"),
		common.HexToAddress("0x4dcfcd45b253119c0d3db6b9ba9e154167dd6a58"),

		common.HexToAddress("0xe6c745142283dbbe4b4a03e969525e25031939fa"),
		common.HexToAddress("0xc61a92dd1713f9ba2214f0ce92e3d408ba4d426d"),
		common.HexToAddress("0xc221a4d0b30dee366bc7899dd29e0f7ac9a7e45a"),
		common.HexToAddress("0xddfd32c4d33915685b926ba5eaab3860db1690cd"),
		common.HexToAddress("0xd338d81c4723982c815a294de3b38608dad9962c"),

		common.HexToAddress("0x6cd54fc6da0f044c43d4550d87ae10b9e1cea351"),
		common.HexToAddress("0xd328d8864649ed050b3d8e9d77f94c75299fd243"),
		common.HexToAddress("0x386dd85ad17b6bd60d2d142473b54bf9d5439842"),
		common.HexToAddress("0x4b8a6cff7b9e008caa936aadd33d9be048623d53"),
	}

	// TestnetChainConfig contains the chain parameters to run a node on the Ropsten test network.
	TestnetChainConfig = &ChainConfig{
		ChainID: big.NewInt(3),
		Dpos: &DposConfig{
			Period:       2,
			WitnessesNum: 19,
		},
	}

	// AllCliqueProtocolChanges contains every protocol change (EIPs) introduced
	// and accepted by the hubble core developers into the Clique consensus.
	//
	// This configuration is intentionally not using keyed fields to force anyone
	// adding flags to the config to also have to set these fields.
	AllCliqueProtocolChanges = &ChainConfig{
		big.NewInt(1337),
		big.NewInt(0),
		&DposConfig{
			Period:       2,
			WitnessesNum: 4,
		},
	}

	TestChainConfig = &ChainConfig{
		big.NewInt(1),
		big.NewInt(0),
		&DposConfig{
			Period:       2,
			WitnessesNum: 4,
		}}
	TestRules = TestChainConfig.Rules(new(big.Int))
)
View Source 
var (
	GenesisDifficulty = big.NewInt(1)      // Difficulty of the Genesis block.
	MinimumDifficulty = big.NewInt(131072) // The minimum that the difficulty may ever be.
)
View Source 
var DiscoveryV5Bootnodes = []string{
	"vnode://06051a5573c81934c9554ef2898eb13b33a34b94cf36b202b69fde139ca17a85051979867720d4bdae4323d4943ddf9aeeb6643633aa656e0be843659795007a@35.177.226.168:30303",
	"vnode://0cc5f5ffb5d9098c8b8c62325f3797f56509bff942704687b6530992ac706e2cb946b90a34f1f19548cd3c7baccbcaea354531e5983c7d1bc0dee16ce4b6440b@40.118.3.223:30304",
	"vnode://1c7a64d76c0334b0418c004af2f67c50e36a3be60b5e4790bdac0439d21603469a85fad36f2473c9a80eb043ae60936df905fa28f1ff614c3e5dc34f15dcd2dc@40.118.3.223:30306",
	"vnode://85c85d7143ae8bb96924f2b54f1b3e70d8c4d367af305325d30a61385a432f247d2c75c45c6b4a60335060d072d7f5b35dd1d4c45f76941f62a4f83b6e75daaf@40.118.3.223:30307",
}

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

View Source 
var (
	// GasTableHubble contain the gas prices for
	// the hubble phase.
	GasTableHubble = GasTable{
		ExtcodeSize: 700,
		ExtcodeCopy: 700,
		Balance:     400,
		SLoad:       200,
		Calls:       700,
		Suicide:     5000,
		ExpByte:     50,

		CreateBySuicide: 25000,
	}
)

Variables containing gas prices for different phases.

View Source 
var MainnetBootnodes = []string{}

MainnetBootnodes are the vnode URLs of the P2P bootstrap nodes running on the main VNT network.

View Source 
var (
	MainnetGenesisHash = common.HexToHash("0xf2ba87b7a6b3c3ff2fc2c0e2b2985b9cfc7ca24daaa39ac04677855b1583e5ad")
)

Genesis hashes to enforce below configs on.

View Source 
var (
	TargetGasLimit = GenesisGasLimit // The artificial target
)
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 VersionWithCommit 

func VersionWithCommit(gitCommit string) string

Types

type ChainConfig 

type ChainConfig struct {
	ChainID *big.Int `json:"chainId"` // chainId identifies the current chain and is used for replay protection

	HubbleBlock *big.Int `json:"HubbleBlock,omitempty"` // Hubble switch block (nil = no fork, 0 = already hubble)

	// Various consensus engines
	Dpos *DposConfig `json:"dpos,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 .

The returned GasTable's fields shouldn't, under any circumstances, be changed.

func (*ChainConfig) IsHubble 

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

IsHubble returns whether num is either equal to the hubble block or greater.

func (*ChainConfig) Rules 

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

Rules ensures c's ChainID is not nil.

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 DposConfig 

type DposConfig struct {
	Period       uint64   `json:"period"`       // Number of seconds between blocks to enforce
	WitnessesNum int      `json:"witnessesnum"` // Number of witnesses
	WitnessesUrl []string `json:"witnessesUrl"`
}

func (*DposConfig) String 

func (c *DposConfig) 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
}

GasTable organizes gas prices for different hubble phases.

type Rules 

type Rules struct {
	ChainID  *big.Int
	IsHubble 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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