Documentation
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Overview ¶
Package forkid implements EIP-2124 (https://eips.ethereum.org/EIPS/eip-2124).
Index ¶
Constants ¶
This section is empty.
Variables ¶
var ( // ErrRemoteStale is returned by the validator if a remote fork checksum is a // subset of our already applied forks, but the announced next fork block is // not on our already passed chain. ErrRemoteStale = errors.New("remote needs update") // ErrLocalIncompatibleOrStale is returned by the validator if a remote fork // checksum does not match any local checksum variation, signalling that the // two chains have diverged in the past at some point (possibly at genesis). ErrLocalIncompatibleOrStale = errors.New("local incompatible or needs update") )
Functions ¶
func GatherForks ¶
func GatherForks(config *params.ChainConfig, genesisTime uint64) (heightForks []uint64, timeForks []uint64)
GatherForks gathers all the known forks and creates a sorted list out of them. Returns heightForks (block number forks) and timeForks (timestamp forks, which are not supported in bor). Returns nil for empty fork lists. This extends the internal gatherForks with Bor-specific fork handling.
Types ¶
type Blockchain ¶
type Blockchain interface {
// Config retrieves the chain's fork configuration.
Config() *params.ChainConfig
// Genesis retrieves the chain's genesis block.
Genesis() *types.Block
// CurrentHeader retrieves the current head header of the canonical chain.
CurrentHeader() *types.Header
}
Blockchain defines all necessary method to build a forkID.
type Filter ¶
Filter is a fork id filter to validate a remotely advertised ID.
func NewFilter ¶
func NewFilter(chain *core.BlockChain) Filter
NewFilter creates a filter that returns if a fork ID should be rejected or not based on the local chain's status.
func NewStaticFilter ¶
func NewStaticFilter(config *params.ChainConfig, genesis *types.Block) Filter
NewStaticFilter creates a filter at block zero.
type ID ¶
type ID struct {
Hash [4]byte // CRC32 checksum of the genesis block and passed fork block numbers
Next uint64 // Block number of the next upcoming fork, or 0 if no forks are known
}
ID is a fork identifier as defined by EIP-2124.
func NewID ¶
NewID calculates the Ethereum fork ID from the chain config, genesis hash, head and time.
func NewIDWithChain ¶
func NewIDWithChain(chain Blockchain) ID
NewIDWithChain calculates the Ethereum fork ID from an existing chain instance.
Source Files