consensus

Documentation

Index

• Constants
• Variables
• func BigToCompact(n *big.Int) uint64
• func BlockSubsidy(height uint64) uint64
• func CalcNextRequiredDifficulty(lastBH, compareBH *legacy.BlockHeader) uint64
• func CheckProofOfWork(hash *bc.Hash, bits uint64) bool
• func CompactToBig(compact uint64) *big.Int
• func HashToBig(hash *bc.Hash) *big.Int
• func IsBech32SegwitPrefix(prefix string, params *Params) bool
• type Params

Constants

const (
	// define the Max transaction size and Max block size
	MaxTxSize    = uint64(1048576)
	MaxBlockSzie = uint64(1048576)

	//config parameter for coinbase reward
	CoinbasePendingBlockNumber = uint64(6)

	BlocksPerRetarget = uint64(1024)
)

consensus variables

Variables

var BTMAssetID = &bc.AssetID{
	V0: uint64(18446744073709551615),
	V1: uint64(18446744073709551615),
	V2: uint64(18446744073709551615),
	V3: uint64(18446744073709551615),
}

BTMAssetID is BTM's asset id, the soul asset of Bytom

var MainNetParams = Params{
	Name:            "main",
	Bech32HRPSegwit: "bm",
}

MainNetParams is the config for production

var TestNetParams = Params{
	Name:            "test",
	Bech32HRPSegwit: "tm",
}

TestNetParams is the config for test-net

Functions

func BigToCompact

func BigToCompact(n *big.Int) uint64

BigToCompact converts a whole number N to a compact representation using an unsigned 64-bit number

func BlockSubsidy

func BlockSubsidy(height uint64) uint64

BlockSubsidy calculate the coinbase rewards on given block height

func CalcNextRequiredDifficulty

func CalcNextRequiredDifficulty(lastBH, compareBH *legacy.BlockHeader) uint64

func CheckProofOfWork

func CheckProofOfWork(hash *bc.Hash, bits uint64) bool

func CompactToBig

func CompactToBig(compact uint64) *big.Int

CompactToBig converts a compact representation of a whole number N to an unsigned 64-bit number. The representation is similar to IEEE754 floating point numbers.

-------------------------------------------------
|   Exponent     |    Sign    |    Mantissa     |
-------------------------------------------------
| 8 bits [63-56] | 1 bit [55] | 55 bits [54-00] |
-------------------------------------------------

N = (-1^sign) * mantissa * 256^(exponent-3)

func HashToBig

func HashToBig(hash *bc.Hash) *big.Int

perform math comparisons.

func IsBech32SegwitPrefix

func IsBech32SegwitPrefix(prefix string, params *Params) bool

IsBech32SegwitPrefix returns whether the prefix is a known prefix for segwit addresses on any default or registered network. This is used when decoding an address string into a specific address type.

Types

type Params

type Params struct {
	// Name defines a human-readable identifier for the network.
	Name            string
	Bech32HRPSegwit string
}

Params store the config for different network