node

package
v1.0.117 Latest Latest
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 Go to latest Published: May 21, 2020 License: GPL-3.0 Imports: 46 Imported by: 0

Documentation

Index

Constants

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const SendTransactionsPipe = "send transactions pipe"

SendTransactionsPipe is the pipe used for sending new transactions

Variables

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var ErrEmptyQueryHandlerName = errors.New("empty query handler name")

ErrEmptyQueryHandlerName signals that an empty string can not be used to be used in the query handler container

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var ErrGenesisBlockNotInitialized = errors.New("genesis block is not initialized")

ErrGenesisBlockNotInitialized signals that genesis block is not initialized

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var ErrInvalidChainID = errors.New("invalid chain ID in Node")

ErrInvalidChainID signals that an invalid chain ID has been provided

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var ErrInvalidValue = errors.New("invalid value")

ErrInvalidValue signals that an invalid value has been provided such as NaN to an integer field

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var ErrNegativeOrZeroConsensusGroupSize = errors.New("group size should be a strict positive number")

ErrNegativeOrZeroConsensusGroupSize signals that 0 elements consensus group is not supported

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var ErrNilAccountsAdapter = errors.New("trying to set nil accounts adapter")

ErrNilAccountsAdapter signals that a nil accounts adapter has been provided

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var ErrNilAntifloodHandler = errors.New("nil antiflood handler")

ErrNilAntifloodHandler signals that a nil antiflood handler has been provided

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var ErrNilBlackListHandler = errors.New("nil black list handler")

ErrNilBlackListHandler signals that a nil black list handler was provided

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var ErrNilBlockProcessor = errors.New("trying to set nil block processor")

ErrNilBlockProcessor signals that a nil block processor has been provided

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var ErrNilBlockTracker = errors.New("trying to set nil block tracker")

ErrNilBlockTracker signals that a nil block tracker has been provided

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var ErrNilBlockchain = errors.New("nil blockchain")

ErrNilBlockchain signals that a nil blockchain structure has been provided

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var ErrNilBootStorer = errors.New("nil boot storer")

ErrNilBootStorer signals that a nil boot storer was provided

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var ErrNilDataPool = errors.New("trying to set nil data pool")

ErrNilDataPool signals that a nil data pool has been provided

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var ErrNilEpochStartTrigger = errors.New("nil start of epoch trigger")

ErrNilEpochStartTrigger signals that a nil start of epoch trigger has been provided

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var ErrNilForkDetector = errors.New("nil fork detector")

ErrNilForkDetector signals that a nil forkdetector object has been provided

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var ErrNilHardforkTrigger = errors.New("nil hardfork trigger")

ErrNilHardforkTrigger signals that a nil hardfork trigger has been provided

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var ErrNilHasher = errors.New("trying to set nil hasher")

ErrNilHasher signals that a nil hasher has been provided

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var ErrNilHeaderIntegrityVerifier = errors.New("nil header integrity verifier")

ErrNilHeaderIntegrityVerifier signals that a nil header integrity verifier has been provided

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var ErrNilHeaderSigVerifier = errors.New("nil header sig verifier")

ErrNilHeaderSigVerifier signals that a nil header sig verifier has been provided

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var ErrNilInterceptorsContainer = errors.New("nil interceptors container")

ErrNilInterceptorsContainer signals that a nil interceptors container has been provided

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var ErrNilKeyGenForBalances = errors.New("trying to set a nil key gen for signing")

ErrNilKeyGenForBalances signals that a nil keygen for balances has been provided

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var ErrNilMarshalizer = errors.New("trying to set nil marshalizer")

ErrNilMarshalizer signals that a nil marshalizer has been provided

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var ErrNilMessenger = errors.New("nil messenger")

ErrNilMessenger signals that a nil messenger has been provided

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var ErrNilMultiSig = errors.New("trying to set nil multiSigner")

ErrNilMultiSig signals that a nil multiSigner object has been provided

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var ErrNilNetworkShardingCollector = errors.New("nil network sharding collector")

ErrNilNetworkShardingCollector defines the error for setting a nil network sharding collector

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var ErrNilNodeStopChannel = errors.New("nil node stop channel")

ErrNilNodeStopChannel signals that a nil channel for node process stop has been provided

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var ErrNilNodesCoordinator = errors.New("trying to set nil nodes coordinator")

ErrNilNodesCoordinator signals that a nil nodes coordinator has been provided

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var ErrNilPendingMiniBlocksHandler = errors.New("trying to set nil pending miniblocks handler")

ErrNilPendingMiniBlocksHandler signals that a nil pending miniblocks handler has been provided

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var ErrNilPrivateKey = errors.New("trying to set nil private key")

ErrNilPrivateKey signals that a nil private key has been provided

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var ErrNilPubkeyConverter = errors.New("trying to use a nil pubkey converter")

ErrNilPubkeyConverter signals that a nil public key converter has been provided

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var ErrNilPublicKey = errors.New("trying to set nil public key")

ErrNilPublicKey signals that a nil public key has been provided

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var ErrNilQueryHandler = errors.New("nil query handler")

ErrNilQueryHandler signals that a nil query handler has been provided

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var ErrNilRequestHandler = errors.New("trying to set nil request handler")

ErrNilRequestHandler signals that a nil request handler has been provided

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var ErrNilRequestedItemsHandler = errors.New("nil requested items handler")

ErrNilRequestedItemsHandler signals that a nil requested items handler was provided

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var ErrNilResolversFinder = errors.New("nil resolvers finder")

ErrNilResolversFinder signals that a nil resolvers finder has been provided

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var ErrNilRounder = errors.New("trying to set nil rounder")

ErrNilRounder signals that a nil rounder has been provided

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var ErrNilShardCoordinator = errors.New("trying to set nil shard coordinator")

ErrNilShardCoordinator signals that a nil shard coordinator has been provided

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var ErrNilSingleSig = errors.New("trying to set nil singlesig")

ErrNilSingleSig signals that a nil singlesig object has been provided

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var ErrNilSingleSignKeyGen = errors.New("trying to set nil single sign key generator")

ErrNilSingleSignKeyGen signals that a nil single key generator has been provided

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var ErrNilStatusHandler = errors.New("nil AppStatusHandler")

ErrNilStatusHandler is returned when the status handler is nil

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var ErrNilStore = errors.New("nil data store")

ErrNilStore signals that a nil store has been provided

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var ErrNilSyncTimer = errors.New("trying to set nil sync timer")

ErrNilSyncTimer signals that a nil sync timer has been provided

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var ErrNilTxAccumulator = errors.New("nil tx accumulator")

ErrNilTxAccumulator signals that a nil Accumulator instance has been provided

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var ErrNilTxFeeHandler = errors.New("trying to set a nil tx fee handler")

ErrNilTxFeeHandler signals that a nil tx fee handler was provided

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var ErrNilUint64ByteSliceConverter = errors.New("trying to set nil uint64 - byte slice converter")

ErrNilUint64ByteSliceConverter signals that a nil uint64 <-> byte slice converter has been provided

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var ErrNilValidatorStatistics = errors.New("nil validator statistics")

ErrNilValidatorStatistics signals that a nil validator statistics has been provided

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var ErrNilWhiteListHandler = errors.New("nil whitelist handler")

ErrNilWhiteListHandler signals that white list handler is nil

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var ErrNoTxToProcess = errors.New("no transaction to process")

ErrNoTxToProcess signals that no transaction were sent for processing

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var ErrQueryHandlerAlreadyExists = errors.New("query handler already exists")

ErrQueryHandlerAlreadyExists signals that the query handler is already registered

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var ErrSystemBusyGeneratingTransactions = errors.New("system busy while generating bulk transactions")

ErrSystemBusyGeneratingTransactions signals that to many transactions are trying to get generated

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var ErrValidatorAlreadySet = errors.New("topic validator has already been set")

ErrValidatorAlreadySet signals that a topic validator has already been set

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var ErrZeroRoundDurationNotSupported = errors.New("0 round duration time is not supported")

ErrZeroRoundDurationNotSupported signals that 0 seconds round duration is not supported

Functions

This section is empty.

Types

type Accumulator 

type Accumulator interface {
	AddData(data interface{})
	OutputChannel() <-chan []interface{}
	IsInterfaceNil() bool
}

Accumulator defines the interface able to accumulate data and periodically evict them

type HardforkTrigger added in v1.0.102 

type HardforkTrigger interface {
	TriggerReceived(payload []byte, data []byte, pkBytes []byte) (bool, error)
	RecordedTriggerMessage() ([]byte, bool)
	Trigger() error
	CreateData() []byte
	IsSelfTrigger() bool
	IsInterfaceNil() bool
}

HardforkTrigger defines the behavior of a hardfork trigger

type NetworkShardingCollector 

type NetworkShardingCollector interface {
	UpdatePeerIdPublicKey(pid p2p.PeerID, pk []byte)
	UpdatePublicKeyShardId(pk []byte, shardId uint32)
	UpdatePeerIdShardId(pid p2p.PeerID, shardId uint32)
	IsInterfaceNil() bool
}

NetworkShardingCollector defines the updating methods used by the network sharding component The interface assures that the collected data will be used by the p2p network sharding components

type Node 

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

Node is a structure that passes the configuration parameters and initializes 

required services as requested

func NewNode 

func NewNode(opts ...Option) (*Node, error)

NewNode creates a new Node instance

func (*Node) AddQueryHandler added in v1.0.110 

func (n *Node) AddQueryHandler(name string, handler debug.QueryHandler) error

AddQueryHandler adds a query handler in cache

func (*Node) ApplyOptions 

func (n *Node) ApplyOptions(opts ...Option) error

ApplyOptions can set up different configurable options of a Node instance

func (*Node) CreateShardedStores 

func (n *Node) CreateShardedStores() error

CreateShardedStores instantiate sharded cachers for Transactions and Headers

func (*Node) CreateTransaction 

func (n *Node) CreateTransaction(
	nonce uint64,
	value string,
	receiver string,
	sender string,
	gasPrice uint64,
	gasLimit uint64,
	dataField string,
	signatureHex string,
) (*transaction.Transaction, []byte, error)

CreateTransaction will return a transaction from all the required fields

func (*Node) DecodeAddressPubkey added in v1.0.104 

func (n *Node) DecodeAddressPubkey(pk string) ([]byte, error)

DecodeAddressPubkey will try to decode the provided address public key string

func (*Node) DirectTrigger added in v1.0.102 

func (n *Node) DirectTrigger() error

DirectTrigger will start the hardfork trigger

func (*Node) EncodeAddressPubkey added in v1.0.104 

func (n *Node) EncodeAddressPubkey(pk []byte) (string, error)

EncodeAddressPubkey will encode the provided address public key bytes to string

func (*Node) GenerateAndSendBulkTransactions 

func (n *Node) GenerateAndSendBulkTransactions(receiverHex string, value *big.Int, numOfTxs uint64, sk crypto.PrivateKey) error

GenerateAndSendBulkTransactions is a method for generating and propagating a set of transactions to be processed. It is mainly used for demo purposes

func (*Node) GenerateTransaction 

func (n *Node) GenerateTransaction(senderHex string, receiverHex string, value *big.Int, transactionData string, privateKey crypto.PrivateKey) (*transaction.Transaction, error)

GenerateTransaction generates a new transaction with sender, receiver, amount and code

func (*Node) GetAccount 

func (n *Node) GetAccount(address string) (state.UserAccountHandler, error)

GetAccount will return account details for a given address

func (*Node) GetAppStatusHandler 

func (n *Node) GetAppStatusHandler() core.AppStatusHandler

GetAppStatusHandler will return the current status handler

func (*Node) GetBalance 

func (n *Node) GetBalance(address string) (*big.Int, error)

GetBalance gets the balance for a specific address

func (*Node) GetHeartbeats 

func (n *Node) GetHeartbeats() []heartbeatData.PubKeyHeartbeat

GetHeartbeats returns the heartbeat status for each public key defined in genesis.json

func (*Node) GetQueryHandler added in v1.0.110 

func (n *Node) GetQueryHandler(name string) (debug.QueryHandler, error)

GetQueryHandler returns the query handler if existing

func (*Node) GetTransaction 

func (n *Node) GetTransaction(_ string) (*transaction.Transaction, error)

GetTransaction gets the transaction

func (*Node) IsInterfaceNil 

func (n *Node) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*Node) IsSelfTrigger added in v1.0.102 

func (n *Node) IsSelfTrigger() bool

IsSelfTrigger returns true if the trigger's registered public key matches the self public key

func (*Node) SendBulkTransactions 

func (n *Node) SendBulkTransactions(txs []*transaction.Transaction) (uint64, error)

SendBulkTransactions sends the provided transactions as a bulk, optimizing transfer between nodes

func (*Node) StartConsensus 

func (n *Node) StartConsensus() error

StartConsensus will start the consensus service for the current node

func (*Node) StartHeartbeat 

func (n *Node) StartHeartbeat(hbConfig config.HeartbeatConfig, versionNumber string, prefsConfig config.PreferencesConfig) error

StartHeartbeat starts the node's heartbeat processing/signaling module TODO(next PR) remove the instantiation of the heartbeat component from here

func (*Node) ValidateTransaction 

func (n *Node) ValidateTransaction(tx *transaction.Transaction) error

ValidateTransaction will validate a transaction

func (*Node) ValidatorStatisticsApi 

func (n *Node) ValidatorStatisticsApi() (map[string]*state.ValidatorApiResponse, error)

ValidatorStatisticsApi will return the statistics for all the validators from the initial nodes pub keys

type Option 

type Option func(*Node) error

Option represents a functional configuration parameter that can operate 

over the None struct.

func WithAccountsAdapter 

func WithAccountsAdapter(accounts state.AccountsAdapter) Option

WithAccountsAdapter sets up the accounts adapter option for the Node

func WithAddressPubkeyConverter added in v1.0.104 

func WithAddressPubkeyConverter(pubkeyConverter state.PubkeyConverter) Option

WithAddressPubkeyConverter sets up the address public key converter adapter option for the Node

func WithAppStatusHandler 

func WithAppStatusHandler(aph core.AppStatusHandler) Option

WithAppStatusHandler sets up which handler will monitor the status of the node

func WithBlockBlackListHandler added in v1.0.102 

func WithBlockBlackListHandler(blackListHandler process.BlackListHandler) Option

WithBlockBlackListHandler sets up a block black list handler for the Node

func WithBlockChain 

func WithBlockChain(blkc data.ChainHandler) Option

WithBlockChain sets up the blockchain option for the Node

func WithBlockProcessor 

func WithBlockProcessor(blockProcessor process.BlockProcessor) Option

WithBlockProcessor sets up the block processor option for the Node

func WithBlockTracker 

func WithBlockTracker(blockTracker process.BlockTracker) Option

WithBlockTracker sets up the block tracker for the Node

func WithBootStorer 

func WithBootStorer(bootStorer process.BootStorer) Option

WithBootStorer sets up a boot storer for the Node

func WithBootstrapRoundIndex 

func WithBootstrapRoundIndex(bootstrapRoundIndex uint64) Option

WithBootstrapRoundIndex sets up a bootstrapRoundIndex option for the Node

func WithChainID 

func WithChainID(chainID []byte) Option

WithChainID sets up the chain ID on which the current node is supposed to work on

func WithConsensusGroupSize 

func WithConsensusGroupSize(consensusGroupSize int) Option

WithConsensusGroupSize sets up the consensus group size option for the Node

func WithConsensusType 

func WithConsensusType(consensusType string) Option

WithConsensusType sets up the consensus type option for the Node

func WithDataPool 

func WithDataPool(dataPool dataRetriever.PoolsHolder) Option

WithDataPool sets up the data pools option for the Node

func WithDataStore 

func WithDataStore(store dataRetriever.StorageService) Option

WithDataStore sets up the storage options for the Node

func WithEpochStartEventNotifier added in v1.0.102 

func WithEpochStartEventNotifier(epochStartEventNotifier epochStart.RegistrationHandler) Option

WithEpochStartEventNotifier sets up the notifier for the epoch start event

func WithEpochStartTrigger 

func WithEpochStartTrigger(epochStartTrigger epochStart.TriggerHandler) Option

WithEpochStartTrigger sets up an start of epoch trigger option for the node

func WithForkDetector 

func WithForkDetector(forkDetector process.ForkDetector) Option

WithForkDetector sets up the multiSigner option for the Node

func WithGenesisTime 

func WithGenesisTime(genesisTime time.Time) Option

WithGenesisTime sets up the genesis time option for the Node

func WithHardforkTrigger added in v1.0.102 

func WithHardforkTrigger(hardforkTrigger HardforkTrigger) Option

WithHardforkTrigger sets up a hardfork trigger

func WithHasher 

func WithHasher(hasher hashing.Hasher) Option

WithHasher sets up the hasher option for the Node

func WithHeaderIntegrityVerifier added in v1.0.117 

func WithHeaderIntegrityVerifier(headerIntegrityVerifier spos.HeaderIntegrityVerifier) Option

WithHeaderIntegrityVerifier sets up a header integrity verifier for the Node

func WithHeaderSigVerifier 

func WithHeaderSigVerifier(headerSigVerifier spos.RandSeedVerifier) Option

WithHeaderSigVerifier sets up a header sig verifier for the Node

func WithIndexer 

func WithIndexer(indexer indexer.Indexer) Option

WithIndexer sets up a indexer for the Node

func WithInitialNodesPubKeys 

func WithInitialNodesPubKeys(pubKeys map[uint32][]string) Option

WithInitialNodesPubKeys sets up the initial nodes public key option for the Node

func WithInputAntifloodHandler 

func WithInputAntifloodHandler(antifloodHandler P2PAntifloodHandler) Option

WithInputAntifloodHandler sets up an antiflood handler for the Node on the input side

func WithInterceptorsContainer 

func WithInterceptorsContainer(interceptorsContainer process.InterceptorsContainer) Option

WithInterceptorsContainer sets up the interceptors container option for the Node

func WithInternalMarshalizer 

func WithInternalMarshalizer(marshalizer marshal.Marshalizer, sizeCheckDelta uint32) Option

WithInternalMarshalizer sets up the marshalizer option for the Node

func WithKeyGen 

func WithKeyGen(keyGen crypto.KeyGenerator) Option

WithKeyGen sets up the single sign key generator option for the Node

func WithKeyGenForAccounts 

func WithKeyGenForAccounts(keyGenForAccounts crypto.KeyGenerator) Option

WithKeyGenForAccounts sets up the balances key generator option for the Node

func WithMessenger 

func WithMessenger(mes P2PMessenger) Option

WithMessenger sets up the messenger option for the Node

func WithMultiSigner 

func WithMultiSigner(multiSigner crypto.MultiSigner) Option

WithMultiSigner sets up the multiSigner option for the Node

func WithNetworkShardingCollector 

func WithNetworkShardingCollector(networkShardingCollector NetworkShardingCollector) Option

WithNetworkShardingCollector sets up a network sharding updater for the Node

func WithNodeStopChannel added in v1.0.103 

func WithNodeStopChannel(channel chan endProcess.ArgEndProcess) Option

WithNodeStopChannel sets up the channel which will handle closing the node

func WithNodesCoordinator 

func WithNodesCoordinator(nodesCoordinator sharding.NodesCoordinator) Option

WithNodesCoordinator sets up the nodes coordinator

func WithPeerBlackListHandler added in v1.0.102 

func WithPeerBlackListHandler(blackListHandler process.BlackListHandler) Option

WithPeerBlackListHandler sets up a block black list handler for the Node

func WithPendingMiniBlocksHandler 

func WithPendingMiniBlocksHandler(pendingMiniBlocksHandler process.PendingMiniBlocksHandler) Option

WithPendingMiniBlocksHandler sets up the pending miniblocks handler for the Node

func WithPrivKey 

func WithPrivKey(sk crypto.PrivateKey) Option

WithPrivKey sets up the multi sign private key option for the Node

func WithPubKey 

func WithPubKey(pk crypto.PublicKey) Option

WithPubKey sets up the multi sign pub key option for the Node

func WithPublicKeySize added in v1.0.103 

func WithPublicKeySize(publicKeySize int) Option

WithPublicKeySize sets up a publicKeySize option for the Node

func WithRequestHandler 

func WithRequestHandler(requestHandler process.RequestHandler) Option

WithRequestHandler sets up the request handler for the Node

func WithRequestedItemsHandler 

func WithRequestedItemsHandler(requestedItemsHandler dataRetriever.RequestedItemsHandler) Option

WithRequestedItemsHandler sets up a requested items handler for the Node

func WithResolversFinder 

func WithResolversFinder(resolversFinder dataRetriever.ResolversFinder) Option

WithResolversFinder sets up the resolvers finder option for the Node

func WithRoundDuration 

func WithRoundDuration(roundDuration uint64) Option

WithRoundDuration sets up the round duration option for the Node

func WithRounder 

func WithRounder(rounder consensus.Rounder) Option

WithRounder sets up the rounder option for the Node

func WithShardCoordinator 

func WithShardCoordinator(shardCoordinator sharding.Coordinator) Option

WithShardCoordinator sets up the shard coordinator for the Node

func WithSignatureSize added in v1.0.103 

func WithSignatureSize(signatureSize int) Option

WithSignatureSize sets up a signatureSize option for the Node

func WithSingleSigner 

func WithSingleSigner(singleSigner crypto.SingleSigner) Option

WithSingleSigner sets up a singleSigner option for the Node

func WithSyncer 

func WithSyncer(syncer ntp.SyncTimer) Option

WithSyncer sets up the syncTimer option for the Node

func WithTxAccumulator 

func WithTxAccumulator(accumulator Accumulator) Option

WithTxAccumulator sets up a transaction accumulator handler for the Node

func WithTxFeeHandler 

func WithTxFeeHandler(feeHandler process.FeeHandler) Option

WithTxFeeHandler sets up the tx fee handler for the Node

func WithTxSignMarshalizer 

func WithTxSignMarshalizer(marshalizer marshal.Marshalizer) Option

WithTxSignMarshalizer sets up the marshalizer used in transaction singning

func WithTxSingleSigner 

func WithTxSingleSigner(txSingleSigner crypto.SingleSigner) Option

WithTxSingleSigner sets up a txSingleSigner option for the Node

func WithTxStorageSize 

func WithTxStorageSize(txStorageSize uint32) Option

WithTxStorageSize sets up a txStorageSize option for the Node

func WithUint64ByteSliceConverter 

func WithUint64ByteSliceConverter(converter typeConverters.Uint64ByteSliceConverter) Option

WithUint64ByteSliceConverter sets up the uint64 <-> []byte converter

func WithValidatorPubkeyConverter added in v1.0.104 

func WithValidatorPubkeyConverter(pubkeyConverter state.PubkeyConverter) Option

WithValidatorPubkeyConverter sets up the validator public key converter adapter option for the Node

func WithValidatorStatistics 

func WithValidatorStatistics(validatorStatistics process.ValidatorStatisticsProcessor) Option

WithValidatorStatistics sets up the validator statistics for the node

func WithValidatorsProvider added in v0.0.5 

func WithValidatorsProvider(validatorsProvider process.ValidatorsProvider) Option

WithValidatorsProvider sets up the validators provider for the node

func WithVmMarshalizer 

func WithVmMarshalizer(marshalizer marshal.Marshalizer) Option

WithVmMarshalizer sets up the marshalizer used in Vm communication (SC)

func WithWhiteListHandler added in v1.0.110 

func WithWhiteListHandler(whiteListHandler process.WhiteListHandler) Option

WithWhiteListHandler sets up a white list handler option

func WithWhiteListHandlerVerified added in v1.0.110 

func WithWhiteListHandlerVerified(whiteListHandler process.WhiteListHandler) Option

WithWhiteListHandlerVerified sets up a white list handler option

type P2PAntifloodHandler 

type P2PAntifloodHandler interface {
	CanProcessMessage(message p2p.MessageP2P, fromConnectedPeer p2p.PeerID) error
	CanProcessMessagesOnTopic(peer p2p.PeerID, topic string, numMessages uint32) error
	ResetForTopic(topic string)
	SetMaxMessagesForTopic(topic string, maxNum uint32)
	IsInterfaceNil() bool
}

P2PAntifloodHandler defines the behavior of a component able to signal that the system is too busy (or flooded) processing p2p messages

type P2PMessenger 

type P2PMessenger interface {
	io.Closer
	Bootstrap() error
	Broadcast(topic string, buff []byte)
	BroadcastOnChannel(channel string, topic string, buff []byte)
	BroadcastOnChannelBlocking(channel string, topic string, buff []byte) error
	CreateTopic(name string, createChannelForTopic bool) error
	HasTopic(name string) bool
	HasTopicValidator(name string) bool
	RegisterMessageProcessor(topic string, handler p2p.MessageProcessor) error
	PeerAddress(pid p2p.PeerID) string
	IsConnectedToTheNetwork() bool
	ID() p2p.PeerID
	IsInterfaceNil() bool
}

P2PMessenger defines a subset of the p2p.Messenger interface

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