chain

Documentation

Index

• Variables
• type Chain
  • func Import(chain string) (*Chain, error)
  • func ImportFromFile(filename string) (*Chain, error)
• type Fork
  • func NewFork(n uint64) *Fork
  • func (f Fork) Active(block uint64) bool
  • func (f Fork) Int() *big.Int
• type Forks
  • func (f *Forks) At(block uint64) ForksInTime
  • func (f *Forks) IsByzantium(block uint64) bool
  • func (f *Forks) IsConstantinople(block uint64) bool
  • func (f *Forks) IsEIP150(block uint64) bool
  • func (f *Forks) IsEIP155(block uint64) bool
  • func (f *Forks) IsEIP158(block uint64) bool
  • func (f *Forks) IsHomestead(block uint64) bool
  • func (f *Forks) IsPetersburg(block uint64) bool
• type ForksInTime
• type Genesis
  • func (g *Genesis) GenesisHeader() *types.Header
  • func (g *Genesis) Hash() types.Hash
  • func (g *Genesis) MarshalJSON() ([]byte, error)
  • func (g *Genesis) UnmarshalJSON(data []byte) error
• type GenesisAccount
  • func (g *GenesisAccount) MarshalJSON() ([]byte, error)
  • func (g *GenesisAccount) UnmarshalJSON(data []byte) error
• type Params
  • func (p *Params) GetEngine() string
• type Whitelists

Variables

var (
	// GenesisGasLimit is the default gas limit of the Genesis block.
	GenesisGasLimit uint64 = 4712388

	// GenesisDifficulty is the default difficulty of the Genesis block.
	GenesisDifficulty = big.NewInt(131072)
)

var AllForksEnabled = &Forks{
	Homestead:      NewFork(0),
	EIP150:         NewFork(0),
	EIP155:         NewFork(0),
	EIP158:         NewFork(0),
	Byzantium:      NewFork(0),
	Constantinople: NewFork(0),
	Petersburg:     NewFork(0),
	Istanbul:       NewFork(0),
}

Types

type Chain

type Chain struct {
	Name      string   `json:"name"`
	Genesis   *Genesis `json:"genesis"`
	Params    *Params  `json:"params"`
	Bootnodes []string `json:"bootnodes,omitempty"`
}

Chain is the blockchain chain configuration

func Import

func Import(chain string) (*Chain, error)

func ImportFromFile

func ImportFromFile(filename string) (*Chain, error)

ImportFromFile imports a chain from a filepath

type Fork

type Fork uint64

func NewFork

func NewFork(n uint64) *Fork

func (Fork) Active

func (f Fork) Active(block uint64) bool

func (Fork) Int

func (f Fork) Int() *big.Int

type Forks

type Forks struct {
	Homestead      *Fork `json:"homestead,omitempty"`
	Byzantium      *Fork `json:"byzantium,omitempty"`
	Constantinople *Fork `json:"constantinople,omitempty"`
	Petersburg     *Fork `json:"petersburg,omitempty"`
	Istanbul       *Fork `json:"istanbul,omitempty"`
	EIP150         *Fork `json:"EIP150,omitempty"`
	EIP158         *Fork `json:"EIP158,omitempty"`
	EIP155         *Fork `json:"EIP155,omitempty"`
}

Forks specifies when each fork is activated

func (*Forks) At

func (f *Forks) At(block uint64) ForksInTime

func (*Forks) IsByzantium

func (f *Forks) IsByzantium(block uint64) bool

func (*Forks) IsConstantinople

func (f *Forks) IsConstantinople(block uint64) bool

func (*Forks) IsEIP150

func (f *Forks) IsEIP150(block uint64) bool

func (*Forks) IsEIP155

func (f *Forks) IsEIP155(block uint64) bool

func (*Forks) IsEIP158

func (f *Forks) IsEIP158(block uint64) bool

func (*Forks) IsHomestead

func (f *Forks) IsHomestead(block uint64) bool

func (*Forks) IsPetersburg

func (f *Forks) IsPetersburg(block uint64) bool

type ForksInTime

type ForksInTime struct {
	Homestead,
	Byzantium,
	Constantinople,
	Petersburg,
	Istanbul,
	EIP150,
	EIP158,
	EIP155 bool
}

type Genesis

type Genesis struct {
	Config *Params `json:"config"`

	Nonce      [8]byte                           `json:"nonce"`
	Timestamp  uint64                            `json:"timestamp"`
	ExtraData  []byte                            `json:"extraData,omitempty"`
	GasLimit   uint64                            `json:"gasLimit"`
	Difficulty uint64                            `json:"difficulty"`
	Mixhash    types.Hash                        `json:"mixHash"`
	Coinbase   types.Address                     `json:"coinbase"`
	Alloc      map[types.Address]*GenesisAccount `json:"alloc,omitempty"`

	// Override
	StateRoot types.Hash

	// Only for testing
	Number     uint64     `json:"number"`
	GasUsed    uint64     `json:"gasUsed"`
	ParentHash types.Hash `json:"parentHash"`
}

Genesis specifies the header fields, state of a genesis block

func (*Genesis) GenesisHeader

func (g *Genesis) GenesisHeader() *types.Header

GenesisHeader converts the initially defined genesis struct to a header

func (*Genesis) Hash

func (g *Genesis) Hash() types.Hash

Hash computes the genesis hash

func (*Genesis) MarshalJSON

func (g *Genesis) MarshalJSON() ([]byte, error)

MarshalJSON implements the json interface

func (*Genesis) UnmarshalJSON

func (g *Genesis) UnmarshalJSON(data []byte) error

UnmarshalJSON implements the json interface

type GenesisAccount

type GenesisAccount struct {
	Code       []byte                    `json:"code,omitempty"`
	Storage    map[types.Hash]types.Hash `json:"storage,omitempty"`
	Balance    *big.Int                  `json:"balance,omitempty"`
	Nonce      uint64                    `json:"nonce,omitempty"`
	PrivateKey []byte                    `json:"secretKey,omitempty"` // for tests
}

GenesisAccount is an account in the state of the genesis block.

func (*GenesisAccount) MarshalJSON

func (g *GenesisAccount) MarshalJSON() ([]byte, error)

func (*GenesisAccount) UnmarshalJSON

func (g *GenesisAccount) UnmarshalJSON(data []byte) error

type Params

type Params struct {
	Forks          *Forks                 `json:"forks"`
	ChainID        int                    `json:"chainID"`
	Engine         map[string]interface{} `json:"engine"`
	Whitelists     *Whitelists            `json:"whitelists,omitempty"`
	BlockGasTarget uint64                 `json:"blockGasTarget"`
}

Params are all the set of params for the chain

func (*Params) GetEngine

func (p *Params) GetEngine() string

type Whitelists

type Whitelists struct {
	Deployment []types.Address `json:"deployment,omitempty"`
}

Whitelists specifies supported whitelists