p2p

type Downloader struct {
	Peers []*Peer
	Self  string

	TxpoolCh     chan *types.Transaction
	BlockCh      chan *types.Block
	BlockchainDB *dbstore.BlockchainDB
}

type P2PMessage struct {
	From    string
	Query   string
	Message string
	Error   error
}

type P2PServer struct {
	Port                  string
	Lis                   net.Listener
	GRPCSrv               *grpc.Server
	Peers                 []string
	P2PAddrBlockNumberMap map[string]int
	Downloader            *Downloader

	BlockchainDB *dbstore.BlockchainDB
	StateDB      *dbstore.StateDB
	Txpool       *txpool.TxPool

	protos.UnimplementedP2PServer
}

type Peer struct {
	Addr        string
	ClientConn  *grpc.ClientConn
	P2PClient   protos.P2PClient
	LatestBlock *types.Block
}