node

package
v1.0.12 Latest Latest
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 Go to latest Published: Aug 14, 2019 License: GPL-3.0 Imports: 37 Imported by: 0

Documentation

Index

Constants

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const HeartbeatTopic = "heartbeat"

HeartbeatTopic is the topic used for heartbeat signaling

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const SendTransactionsPipe = "send transactions pipe"

SendTransactionsPipe is the pipe used for sending new transactions

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const WaitTime = 2000 * time.Millisecond

WaitTime defines the time in milliseconds until node waits the requested info from the network

Variables

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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 ErrNegativeDurationInSecToConsiderUnresponsive = errors.New("value DurationInSecToConsiderUnresponsive is less" +
	" than 1")

ErrNegativeDurationInSecToConsiderUnresponsive is raised when a value less than 1 has been provided

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var ErrNegativeMaxTimeToWaitBetweenBroadcastsInSec = errors.New("value MaxTimeToWaitBetweenBroadcastsInSec is less " +
	"than 1")

ErrNegativeMaxTimeToWaitBetweenBroadcastsInSec is raised when a value less than 1 has been provided

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var ErrNegativeMinTimeToWaitBetweenBroadcastsInSec = errors.New("value MinTimeToWaitBetweenBroadcastsInSec is less " +
	"than 1")

ErrNegativeMinTimeToWaitBetweenBroadcastsInSec is raised when a value less than 1 has been provided

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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 ErrNilAddressConverter = errors.New("trying to set nil address converter")

ErrNilAddressConverter signals that a nil address converter has been provided

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var ErrNilBalances = errors.New("trying to set nil balances")

ErrNilBalances signals that a nil list of initial balances has been provided

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var ErrNilBlockHeader = errors.New("block header is nil")

ErrNilBlockHeader is raised when a valid block header is expected but nil was used

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

ErrNilDataPool signals that a nil data pool 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 ErrNilHasher = errors.New("trying to set nil hasher")

ErrNilHasher signals that a nil hasher 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 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 ErrNilPrivateKey = errors.New("trying to set nil private key")

ErrNilPrivateKey signals that a nil private key 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 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 ErrNilTransactionPool = errors.New("nil transaction pool")

ErrNilTransactionPool signals that a nil transaction pool was used

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var ErrNilTxBlockBody = errors.New("tx block body is nil")

ErrNilTxBlockBody is raised when a valid tx block body is expected but nil was used

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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 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 ErrTooManyTransactionsInPool = errors.New("too many transactions in pool")

ErrTooManyTransactionsInPool signals that are too many transactions in pool

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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 ErrWrongTypeAssertion = errors.New("wrong type assertion: expected *block.Header")

ErrWrongTypeAssertion is raised when a type assertion occurs

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var ErrWrongValues = errors.New("wrong values for heartbeat parameters")

ErrWrongValues signals that wrong values were provided

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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 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) ApplyOptions 

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

ApplyOptions can set up different configurable options of a Node instance

func (*Node) CreateMetaGenesisBlock added in v1.0.3 

func (n *Node) CreateMetaGenesisBlock() error

CreateMetaGenesisBlock creates the meta genesis block

func (*Node) CreateShardGenesisBlock added in v1.0.3 

func (n *Node) CreateShardGenesisBlock() error

CreateShardGenesisBlock creates the shard genesis block

func (*Node) CreateShardedStores 

func (n *Node) CreateShardedStores() error

CreateShardedStores instantiate sharded cachers for Transactions and Headers

func (*Node) GenerateAndSendBulkTransactions 

func (n *Node) GenerateAndSendBulkTransactions(receiverHex string, value *big.Int, noOfTx uint64) 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) GenerateAndSendBulkTransactionsOneByOne added in v1.0.3 

func (n *Node) GenerateAndSendBulkTransactionsOneByOne(receiverHex string, value *big.Int, noOfTx uint64) error

GenerateAndSendBulkTransactionsOneByOne 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) (*transaction.Transaction, error)

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

func (*Node) GetAccount 

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

GetAccount will return acount 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(addressHex string) (*big.Int, error)

GetBalance gets the balance for a specific address

func (*Node) GetCurrentPublicKey added in v1.0.3 

func (n *Node) GetCurrentPublicKey() string

GetCurrentPublicKey will return the current node's public key

func (*Node) GetHeartbeats 

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

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

func (*Node) GetTransaction 

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

GetTransaction gets the transaction

func (*Node) IsRunning 

func (n *Node) IsRunning() bool

IsRunning will return the current state of the node

func (*Node) P2PBootstrap 

func (n *Node) P2PBootstrap() error

P2PBootstrap will try to connect to many peers as possible

func (*Node) SendTransaction added in v1.0.3 

func (n *Node) SendTransaction(
	nonce uint64,
	senderHex string,
	receiverHex string,
	value *big.Int,
	gasPrice uint64,
	gasLimit uint64,
	transactionData string,
	signature []byte) (string, error)

SendTransaction will send a new transaction on the topic channel

func (*Node) Start 

func (n *Node) Start() error

Start will create a new messenger and and set up the Node state as running

func (*Node) StartConsensus 

func (n *Node) StartConsensus() error

StartConsensus will start the consesus service for the current node

func (*Node) StartHeartbeat 

func (n *Node) StartHeartbeat(config config.HeartbeatConfig, versionNumber string, nodeDisplayName string) error

StartHeartbeat starts the node's heartbeat processing/signaling module

func (*Node) Stop 

func (n *Node) Stop() error

Stop closes the messenger and undos everything done in Start

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 WithActiveMetachain added in v1.0.3 

func WithActiveMetachain(flag bool) Option

WithActiveMetachain sets up the flag that tells the node that metachain shard is active TODO - remove this when finishing metachain testing as it will always be enabled

func WithAddressConverter 

func WithAddressConverter(addrConverter state.AddressConverter) Option

WithAddressConverter sets up the address 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 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.BlocksTracker) Option

WithBlockTracker sets up the block tracker option for the Node

func WithBootstrapRoundIndex 

func WithBootstrapRoundIndex(bootstrapRoundIndex uint64) Option

WithBootstrapRoundIndex sets up a bootstrapRoundIndex option for the Node

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 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 WithHasher 

func WithHasher(hasher hashing.Hasher) Option

WithHasher sets up the hasher option for the Node

func WithInitialNodesBalances added in v1.0.3 

func WithInitialNodesBalances(balances map[string]*big.Int) Option

WithInitialNodesBalances sets up the initial map of nodes public keys and their respective balances

func WithInitialNodesPubKeys 

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

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

func WithInterceptorsContainer 

func WithInterceptorsContainer(interceptorsContainer process.InterceptorsContainer) Option

WithInterceptorsContainer sets up the interceptors container 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 WithMarshalizer added in v1.0.3 

func WithMarshalizer(marshalizer marshal.Marshalizer) Option

WithMarshalizer sets up the marshalizer option for the Node

func WithMessenger 

func WithMessenger(mes P2PMessenger) Option

WithMessenger sets up the messenger option for the Node

func WithMetaDataPool added in v1.0.3 

func WithMetaDataPool(dataPool dataRetriever.MetaPoolsHolder) Option

WithMetaDataPool sets up the data pools option for the Node

func WithMultiSigner 

func WithMultiSigner(multiSigner crypto.MultiSigner) Option

WithMultiSigner sets up the multiSigner option 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 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 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 WithTxSignPrivKey added in v1.0.3 

func WithTxSignPrivKey(sk crypto.PrivateKey) Option

WithTxSignPrivKey sets up the single sign private key option for the Node

func WithTxSignPubKey added in v1.0.3 

func WithTxSignPubKey(pk crypto.PublicKey) Option

WithTxSignPubKey sets up the single sign public key option for the Node

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

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)
	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
}

P2PMessenger defines a subset of the p2p.Messenger interface

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