heartbeat

Documentation

Index

• Variables
• type BlackListHandler
• type EligibleListProvider
• type HardforkTrigger
• type HeartbeatStorageHandler
• type MessageHandler
• type NetworkShardingCollector
• type P2PAntifloodHandler
• type P2PMessenger
• type PeerTypeProviderHandler
• type Timer
• type ValidatorStatisticsProcessor

Variables

var ErrFetchGenesisTimeFromDb = errors.New("monitor: can't get genesis time from db")

ErrFetchGenesisTimeFromDb signals that the genesis time cannot be fetched from db

var ErrHeartbeatPidMismatch = errors.New("heartbeat peer id mismatch")

ErrHeartbeatPidMismatch signals that a received hearbeat did not come from the correct originator

var ErrInvalidDurationToConsiderUnresponsiveInSec = errors.New("value DurationToConsiderUnresponsiveInSec is less than 1")

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

var ErrInvalidMaxDurationPeerUnresponsive = errors.New("invalid max duration to declare the peer unresponsive")

ErrInvalidMaxDurationPeerUnresponsive signals that the duration provided is invalid

var ErrMarshalGenesisTime = errors.New("monitor: can't marshal genesis time")

ErrMarshalGenesisTime signals that the marshaling of the genesis time didn't work

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

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

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

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

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

ErrNilAntifloodHandler signals that a nil antiflood handler has been provided

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

ErrNilAppStatusHandler defines the error for setting a nil AppStatusHandler

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

ErrNilBlackListHandler signals that a nil black list handler was provided

var ErrNilDataToProcess = errors.New("nil data to process")

ErrNilDataToProcess signals that nil data was provided

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

ErrNilHardforkTrigger signals that a nil hardfork trigger has been provided

var ErrNilHeartbeatStorer = errors.New("nil heartbeat storer")

ErrNilHeartbeatStorer signals that the provided heartbeat storer is nil

var ErrNilKeyGenerator = errors.New("key generator is nil")

ErrNilKeyGenerator is raised when a valid key generator is expected but nil used

var ErrNilMarshalizer = errors.New("nil marshalizer")

ErrNilMarshalizer signals that a nil marshalizer has been provided

var ErrNilMessage = errors.New("nil message")

ErrNilMessage signals that a nil message has been received

var ErrNilMessageHandler = errors.New("nil message handler")

ErrNilMessageHandler signals that the provided message handler is nil

var ErrNilMessenger = errors.New("nil P2P Messenger")

ErrNilMessenger signals that a nil p2p messenger has been provided

var ErrNilMonitorDb = errors.New("nil monitor db")

ErrNilMonitorDb signals that a nil monitor db was provided

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

ErrNilNetworkShardingCollector defines the error for setting a nil network sharding collector

var ErrNilPeerTypeProvider = errors.New("nil peer type provider")

ErrNilPeerTypeProvider signals that a nil peer type provider has been given

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

ErrNilPrivateKey signals that a nil private key has been provided

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

ErrNilPubkeyConverter signals that a nil public key converter has been provided

var ErrNilPublicKeysMap = errors.New("nil public keys map")

ErrNilPublicKeysMap signals that a nil public keys map has been provided

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

ErrNilShardCoordinator signals that an operation has been attempted to or with a nil shard coordinator

var ErrNilSingleSigner = errors.New("nil single signer")

ErrNilSingleSigner signals that a nil single signer has been provided

var ErrNilTimer = errors.New("nil time getter handler")

ErrNilTimer signals that a nil time getter handler has been provided

var ErrPropertyTooLong = errors.New("property too long in Heartbeat")

ErrPropertyTooLong signals that one of the properties is too long

var ErrStoreGenesisTimeToDb = errors.New("monitor: can't store genesis time")

ErrStoreGenesisTimeToDb signals that the genesis time cannot be store to db

var ErrUnmarshalGenesisTime = errors.New("monitor: can't unmarshal genesis time")

ErrUnmarshalGenesisTime signals that the unmarshaling of the genesis time didn't work

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

ErrValidatorAlreadySet signals that a topic validator has already been set

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

ErrWrongValues signals that wrong values were provided

var ErrZeroHeartbeatRefreshIntervalInSec = errors.New("zero heartbeatRefreshInterval")

ErrZeroHeartbeatRefreshIntervalInSec signals that a zero value was provided for the HeartbeatRefreshIntervalInSec

var ErrZeroHideInactiveValidatorIntervalInSec = errors.New("zero hideInactiveValidatorIntervalInSec")

ErrZeroHideInactiveValidatorIntervalInSec signals that a zero value was provided for the ErrZeroHideInactiveValidatorIntervalInSec

Types

type BlackListHandler

type BlackListHandler interface {
	Add(key string) error
	Has(key string) bool
	Sweep()
	IsInterfaceNil() bool
}

BlackListHandler can determine if a certain key is or not blacklisted

type EligibleListProvider

type EligibleListProvider interface {
	GetAllEligibleValidatorsPublicKeys(epoch uint32) (map[uint32][][]byte, error)
	GetAllWaitingValidatorsPublicKeys(epoch uint32) (map[uint32][][]byte, error)
	IsInterfaceNil() bool
}

EligibleListProvider defines what an eligible list provider should do

type HardforkTrigger

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

HardforkTrigger defines the behavior of a hardfork trigger

type HeartbeatStorageHandler

type HeartbeatStorageHandler interface {
	LoadGenesisTime() (time.Time, error)
	UpdateGenesisTime(genesisTime time.Time) error
	LoadHeartBeatDTO(pubKey string) (*data.HeartbeatDTO, error)
	SavePubkeyData(pubkey []byte, heartbeat *data.HeartbeatDTO) error
	LoadKeys() ([][]byte, error)
	SaveKeys(peersSlice [][]byte) error
	IsInterfaceNil() bool
}

HeartbeatStorageHandler defines what a heartbeat's storer should do

type MessageHandler

type MessageHandler interface {
	CreateHeartbeatFromP2PMessage(message p2p.MessageP2P) (*data.Heartbeat, error)
	IsInterfaceNil() bool
}

MessageHandler defines what a message processor for heartbeat should do

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 P2PAntifloodHandler

type P2PAntifloodHandler interface {
	CanProcessMessage(message p2p.MessageP2P, fromConnectedPeer p2p.PeerID) error
	CanProcessMessagesOnTopic(peer p2p.PeerID, topic string, numMessages uint32) error
	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

type PeerTypeProviderHandler

type PeerTypeProviderHandler interface {
	ComputeForPubKey(pubKey []byte) (core.PeerType, uint32, error)
	GetAllPeerTypeInfos() []*state.PeerTypeInfo
	IsInterfaceNil() bool
}

PeerTypeProviderHandler defines what a component which computes the type of a peer should do

type Timer

type Timer interface {
	Now() time.Time
	IsInterfaceNil() bool
}

Timer defines an interface for tracking time

type ValidatorStatisticsProcessor

type ValidatorStatisticsProcessor interface {
	RootHash() ([]byte, error)
	GetValidatorInfoForRootHash(rootHash []byte) (map[uint32][]*state.ValidatorInfo, error)
	IsInterfaceNil() bool
}

ValidatorStatisticsProcessor is the interface for consensus participation statistics