protcolp2p

Documentation

Index

• Variables
• func GenPeerID() (peer.ID, error)
• func WaitForMinPeers(pctx context.Context, logger *zap.Logger, subscriber Subscriber, ...) error
• type Broadcaster
• type EventHandler
• type MockMessageEvent
• type MockNetwork
  • func NewMockNetwork(logger *zap.Logger, self peer.ID, inBufSize int) MockNetwork
• type MsgValidationResult
• type Network
• type RequestHandler
  • func CombineRequestHandlers(handlers ...RequestHandler) RequestHandler
• type Subscriber
• type SyncHandler
  • func WithHandler(protocol SyncProtocol, handler RequestHandler) *SyncHandler
• type SyncProtocol
• type SyncResult
• type Syncer
• type ValidationReporting

Variables

var (
	// ErrNetworkIsNotReady is returned when trying to access the network instance before it's ready
	ErrNetworkIsNotReady = errors.New("network services are not ready")
)

Functions

func GenPeerID

func GenPeerID() (peer.ID, error)

GenPeerID generates a new network key

func WaitForMinPeers

func WaitForMinPeers(pctx context.Context, logger *zap.Logger, subscriber Subscriber, vpk spectypes.ValidatorPK, minPeers int, interval time.Duration) error

WaitForMinPeers waits until there are minPeers conntected for the given validator

Types

type Broadcaster

type Broadcaster interface {
	// Broadcast broadcasts the given message to the corresponding subnet
	Broadcast(msg spectypes.SSVMessage) error
}

Broadcaster enables to broadcast messages

type EventHandler

type EventHandler func(e MockMessageEvent) *spectypes.SSVMessage

EventHandler represents a function that handles a message event

type MockMessageEvent

type MockMessageEvent struct {
	From     peer.ID
	Topic    string
	Protocol string
	Msg      *spectypes.SSVMessage
}

MockMessageEvent is an abstraction used to push stream/pubsub messages

type MockNetwork

type MockNetwork interface {
	Network

	SendStreamMessage(protocol string, pi peer.ID, msg *spectypes.SSVMessage) error
	Self() peer.ID
	PushMsg(e MockMessageEvent)
	AddPeers(pk spectypes.ValidatorPK, toAdd ...MockNetwork)
	Start(ctx context.Context)
	SetLastDecidedHandler(lastDecidedHandler EventHandler)
	SetGetHistoryHandler(getHistoryHandler EventHandler)
	GetBroadcastMessages() []spectypes.SSVMessage
}

MockNetwork is a wrapping interface that enables tests to run with local network

func NewMockNetwork

func NewMockNetwork(logger *zap.Logger, self peer.ID, inBufSize int) MockNetwork

NewMockNetwork creates a new instance of MockNetwork

type MsgValidationResult

type MsgValidationResult int32

MsgValidationResult helps other components to report message validation with a generic results scheme

const (
	// ValidationAccept is the result of a valid message
	ValidationAccept MsgValidationResult = iota
	// ValidationIgnore is the result in case we want to ignore the validation
	ValidationIgnore
	// ValidationRejectLow is the result for invalid message, with low severity (e.g. late message)
	ValidationRejectLow
	// ValidationRejectMedium is the result for invalid message, with medium severity (e.g. wrong height)
	ValidationRejectMedium
	// ValidationRejectHigh is the result for invalid message, with high severity (e.g. invalid signature)
	ValidationRejectHigh
)

type Network

type Network interface {
	Subscriber
	Broadcaster
	Syncer
	ValidationReporting
}

Network holds the networking layer used to complement the underlying protocols

type RequestHandler

type RequestHandler func(*spectypes.SSVMessage) (*spectypes.SSVMessage, error)

RequestHandler handles p2p requests

func CombineRequestHandlers

func CombineRequestHandlers(handlers ...RequestHandler) RequestHandler

CombineRequestHandlers combines multiple handlers into a single handler

type Subscriber

type Subscriber interface {
	// Subscribe subscribes to validator subnet
	Subscribe(pk spectypes.ValidatorPK) error
	// Unsubscribe unsubscribes from the validator subnet
	Unsubscribe(pk spectypes.ValidatorPK) error
	// Peers returns the peers that are connected to the given validator
	Peers(pk spectypes.ValidatorPK) ([]peer.ID, error)
}

Subscriber manages topics subscription

type SyncHandler

type SyncHandler struct {
	Protocol SyncProtocol
	Handler  RequestHandler
}

SyncHandler is a wrapper for RequestHandler, that enables to specify the protocol

func WithHandler

func WithHandler(protocol SyncProtocol, handler RequestHandler) *SyncHandler

WithHandler enables to inject an SyncHandler

type SyncProtocol

type SyncProtocol int32

SyncProtocol represent the type of sync protocols

const (
	// LastDecidedProtocol is the last decided protocol type
	LastDecidedProtocol SyncProtocol = iota
	// LastChangeRoundProtocol is the last change round protocol type
	LastChangeRoundProtocol
	// DecidedHistoryProtocol is the decided history protocol type
	DecidedHistoryProtocol
)

type SyncResult

type SyncResult struct {
	Msg    *spectypes.SSVMessage
	Sender string
}

SyncResult holds the result of a sync request, including the actual message and the sender

type Syncer

type Syncer interface {
	// RegisterHandlers registers handler for the given protocol
	RegisterHandlers(handlers ...*SyncHandler)
	// LastDecided fetches last decided from a random set of peers
	LastDecided(mid spectypes.MessageID) ([]SyncResult, error)
	// GetHistory sync the given range from a set of peers that supports history for the given identifier
	// it accepts a list of targets for the request
	GetHistory(mid spectypes.MessageID, from, to specqbft.Height, targets ...string) ([]SyncResult, specqbft.Height, error)
	// LastChangeRound fetches last change round message from a random set of peers
	LastChangeRound(mid spectypes.MessageID, height specqbft.Height) ([]SyncResult, error)
}

Syncer holds the interface for syncing data from other peerz

type ValidationReporting

type ValidationReporting interface {
	// ReportValidation reports the result for the given message
	ReportValidation(message *spectypes.SSVMessage, res MsgValidationResult)
}

ValidationReporting is the interface for reporting on message validation results