upstream

package

v0.8.5 Latest Latest Go to latest Published: Nov 12, 2018 License: ISC Imports: 14 Imported by: 0

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maintain REQ/REP connection to clients this allow for push of blocks, transactions... as well as polling for out of sync conditions

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type Upstream struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func New(privateKey []byte, publicKey []byte, timeout time.Duration) (*Upstream, error)

func (u *Upstream) Connect(address *util.Connection, serverPublicKey []byte) error

connect (or reconnect) to a specific server

func (u *Upstream) ConnectedTo() *zmqutil.Connected

if registered the have avalid connection

func (u *Upstream) Destroy()

func (u *Upstream) GetBlockData(blockNumber uint64) ([]byte, error)

fetch block data

func (u *Upstream) GetBlockDigest(blockNumber uint64) (blockdigest.Digest, error)

fetch block digest

func (u *Upstream) GetHeight() uint64

fetch height from last polled value

func (u *Upstream) IsConnectedTo(serverPublicKey []byte) bool

check the current destination

does not mean actually connected, as could be in a timeout and reconnect state

func (u *Upstream) IsOK() bool

if registered the have avalid connection