consensus

type BlockQueuer interface {
	PutBlock(block *coreb.Block) error
}

type Config struct {
	// Logger is a logger instance.
	Logger *zap.Logger
	// Broadcast is a callback which is called to notify the server
	// about a new consensus payload to be sent.
	Broadcast func(p *npayload.Extensible)
	// Chain is a Ledger instance.
	Chain Ledger
	// BlockQueue is a BlockQueuer instance.
	BlockQueue BlockQueuer
	// ProtocolConfiguration contains protocol settings.
	ProtocolConfiguration config.ProtocolConfiguration
	// RequestTx is a callback to which will be called
	// when a node lacks transactions present in the block.
	RequestTx func(h ...util.Uint256)
	// StopTxFlow is a callback that is called after the consensus
	// process stops accepting incoming transactions.
	StopTxFlow func()
	// TimePerBlock is minimal time that should pass before the next block is accepted.
	TimePerBlock time.Duration
	// Wallet is a local-node wallet configuration. If the path is empty, then
	// no wallet will be initialized and the service will be in watch-only mode.
	Wallet config.Wallet
}

type Ledger interface {
	ApplyPolicyToTxSet([]*transaction.Transaction) []*transaction.Transaction
	GetConfig() config.Blockchain
	GetMemPool() *mempool.Pool
	GetNextBlockValidators() ([]*keys.PublicKey, error)
	GetStateRoot(height uint32) (*state.MPTRoot, error)
	GetTransaction(util.Uint256) (*transaction.Transaction, uint32, error)
	ComputeNextBlockValidators() []*keys.PublicKey
	PoolTx(t *transaction.Transaction, pools ...*mempool.Pool) error
	SubscribeForBlocks(ch chan *coreb.Block)
	UnsubscribeFromBlocks(ch chan *coreb.Block)
	GetBaseExecFee() int64
	CalculateAttributesFee(tx *transaction.Transaction) int64
	interop.Ledger
	mempool.Feer
}

type Payload struct {
	npayload.Extensible
	// contains filtered or unexported fields
}

type Service interface {
	// Name returns service name.
	Name() string
	// Start initializes dBFT and starts event loop for consensus service.
	// It must be called only when the sufficient amount of peers are connected.
	// The service only starts once, subsequent calls to Start are no-op.
	Start()
	// Shutdown stops dBFT event loop. It can only be called once, subsequent calls
	// to Shutdown on the same instance are no-op. The instance that was stopped can
	// not be started again by calling Start (use a new instance if needed).
	Shutdown()

	// OnPayload is a callback to notify the Service about a newly received payload.
	OnPayload(p *npayload.Extensible) error
	// OnTransaction is a callback to notify the Service about a newly received transaction.
	OnTransaction(tx *transaction.Transaction)
}