order

type Config struct {
	ID               uint64
	IsNew            bool
	RepoRoot         string
	StoragePath      string
	OrderType        string
	PeerMgr          orderPeerMgr.OrderPeerManager
	PrivKey          crypto.PrivateKey
	Logger           logrus.FieldLogger
	Nodes            map[uint64]*pb.VpInfo
	Applied          uint64
	Digest           string
	GetChainMetaFunc func() *pb.ChainMeta
	GetBlockByHeight func(height uint64, fullTx bool) (*pb.Block, error)
	GetAccountNonce  func(address *types.Address) uint64
}

type Option func(*Config)

type Order interface {
	// Start the order service.
	Start() error

	// Stop means frees the resources which were allocated for this service.
	Stop()

	// Prepare means send transaction to the consensus engine
	Prepare(tx pb.Transaction) error

	// Commit recv blocks form Order and commit it by order
	Commit() chan *pb.CommitEvent

	// Step send msg to the consensus engine
	Step(msg []byte) error

	// Ready means whether order has finished electing leader
	Ready() error

	// ReportState means block was persisted and report it to the consensus engine
	ReportState(height uint64, blockHash *types.Hash, txHashList []*types.Hash)

	// Quorum means minimum number of nodes in the cluster that can work
	Quorum() uint64

	// GetPendingNonceByAccount will return the latest pending nonce of a given account
	GetPendingNonceByAccount(account string) uint64

	GetPendingTxByHash(hash *types.Hash) pb.Transaction

	// DelNode sends a delete vp request by given id.
	DelNode(delID uint64) error

	SubscribeTxEvent(events chan<- pb.Transactions) event.Subscription
}