synchro

Documentation

Index

• Constants
• type BlockHash
• type BlockMessage
• type Sync
  • func New(p p2p.Service, bCache blockcache.BlockCache, bChain block.Chain) *Sync
  • func (s *Sync) Close()
  • func (s *Sync) IncomingBlock() <-chan *BlockMessage
  • func (s *Sync) NeighborHeight() int64

Constants

const (
	BlockHashLeastNeighborNumber = 2
	BlockHashExpiredSeconds      = 60
	BlockHashMaxRequestRange     = 100
)

Constant of blockhash sync

Types

type BlockHash

type BlockHash struct {
	Hash   []byte
	PeerID []p2p.PeerID
}

BlockHash return the block hash with the Peers that have it.

type BlockMessage

type BlockMessage struct {
	Blk     *block.Block
	P2PType p2p.MessageType
	From    string
}

BlockMessage define a block from a neighbor node.

type Sync

type Sync struct {
	// contains filtered or unexported fields
}

Sync is the synchronizer of blockchain. It includes requestHandler, heightSync, blockhashSync, blockSync.

func New

func New(p p2p.Service, bCache blockcache.BlockCache, bChain block.Chain) *Sync

New will return a new synchronizer of blockchain.

func (*Sync) Close

func (s *Sync) Close()

Close will close the synchronizer of blockchain.

func (*Sync) IncomingBlock

func (s *Sync) IncomingBlock() <-chan *BlockMessage

IncomingBlock will return the blocks from other nodes. Including passive request and active broadcast.

func (*Sync) NeighborHeight

func (s *Sync) NeighborHeight() int64

NeighborHeight will return the median of the head height of the neighbor nodes. If the number of neighbor nodes is less than leastNeighborNumber, return -1.