lavaprotocol

Documentation

Index

• Constants
• Variables
• func ConstructDataReliabilityRelayRequest(ctx context.Context, vrfData *pairingtypes.VRFData, privKey *btcec.PrivateKey, ...) (*pairingtypes.RelayRequest, error)
• func ConstructRelayRequest(ctx context.Context, privKey *btcec.PrivateKey, chainID string, ...) (*pairingtypes.RelayRequest, error)
• func DataReliabilityThresholdToSession(vrfs [][]byte, uniqueIdentifiers []bool, reliabilityThreshold uint32, ...) (indexes map[int64]bool)
• func GetLatestFinalizedBlock(latestBlock int64, blockDistanceForFinalizedData int64) int64
• func GetTimePerCu(cu uint64) time.Duration
• func NewVRFData(differentiator bool, vrf_res []byte, vrf_proof []byte, ...) *pairingtypes.VRFData
• func ReplaceRequestedBlock(requestedBlock int64, latestBlock int64) int64
• func UpdateRequestedBlock(request *pairingtypes.RelayRequest, response *pairingtypes.RelayReply)
• func VerifyFinalizationData(reply *pairingtypes.RelayReply, relayRequest *pairingtypes.RelayRequest, ...) (finalizedBlocks map[int64]string, ...)
• func VerifyRelayReply(reply *pairingtypes.RelayReply, relayRequest *pairingtypes.RelayRequest, ...) error
• func VerifyReliabilityResults(originalResult *RelayResult, dataReliabilityResults []*RelayResult, ...) (conflict bool, conflicts []*conflicttypes.ResponseConflict)
• type FinalizationConsensus
  • func (s *FinalizationConsensus) ExpectedBlockHeight(chainParser chainlib.ChainParser) (expectedBlockHeight int64, numOfProviders int)
  • func (fc *FinalizationConsensus) NewEpoch(epoch uint64)
  • func (fc *FinalizationConsensus) UpdateFinalizedHashes(blockDistanceForFinalizedData int64, providerAddress string, latestBlock int64, ...) (finalizationConflict *conflicttypes.FinalizationConflict, err error)
• type ProviderHashesConsensus
• type RelayRequestCommonData
  • func NewRelayRequestCommonData(chainID string, connectionType string, apiUrl string, data []byte, ...) RelayRequestCommonData
• type RelayResult

Constants

const (
	TimePerCU                      = uint64(100 * time.Millisecond)
	MinimumTimePerRelayDelay       = time.Second
	AverageWorldLatency            = 200 * time.Millisecond
	DataReliabilityTimeoutIncrease = 5 * time.Second
	SupportedNumberOfVRFs          = 2
)

Variables

var (
	ProviderFinzalizationDataError               = sdkerrors.New("ProviderFinzalizationData Error", 3365, "provider did not sign finalization data correctly")
	ProviderFinzalizationDataAccountabilityError = sdkerrors.New("ProviderFinzalizationDataAccountability Error", 3366, "provider returned invalid finalization data, with accountability")
	HashesConsunsusError                         = sdkerrors.New("HashesConsunsus Error", 3367, "identified finalized responses with conflicting hashes, from two providers")
)

Functions

func ConstructDataReliabilityRelayRequest

func ConstructDataReliabilityRelayRequest(ctx context.Context, vrfData *pairingtypes.VRFData, privKey *btcec.PrivateKey, chainID string, relayRequestCommonData *RelayRequestCommonData, providerPublicAddress string, epoch int64, reportedProviders []byte) (*pairingtypes.RelayRequest, error)

func ConstructRelayRequest

func ConstructRelayRequest(ctx context.Context, privKey *btcec.PrivateKey, chainID string, relayRequestCommonData RelayRequestCommonData, providerPublicAddress string, consumerSession *lavasession.SingleConsumerSession, epoch int64, reportedProviders []byte) (*pairingtypes.RelayRequest, error)

func DataReliabilityThresholdToSession

func DataReliabilityThresholdToSession(vrfs [][]byte, uniqueIdentifiers []bool, reliabilityThreshold uint32, originalProvidersCount uint32) (indexes map[int64]bool)

func GetLatestFinalizedBlock

func GetLatestFinalizedBlock(latestBlock int64, blockDistanceForFinalizedData int64) int64

func GetTimePerCu

func GetTimePerCu(cu uint64) time.Duration

func NewVRFData

func NewVRFData(differentiator bool, vrf_res []byte, vrf_proof []byte, request *pairingtypes.RelayRequest, reply *pairingtypes.RelayReply) *pairingtypes.VRFData

func ReplaceRequestedBlock

func ReplaceRequestedBlock(requestedBlock int64, latestBlock int64) int64

func UpdateRequestedBlock

func UpdateRequestedBlock(request *pairingtypes.RelayRequest, response *pairingtypes.RelayReply)

func VerifyFinalizationData

func VerifyFinalizationData(reply *pairingtypes.RelayReply, relayRequest *pairingtypes.RelayRequest, addr string, latestSessionBlock int64, blockDistanceForfinalization uint32) (finalizedBlocks map[int64]string, finalizationConflict *conflicttypes.FinalizationConflict, errRet error)

func VerifyRelayReply

func VerifyRelayReply(reply *pairingtypes.RelayReply, relayRequest *pairingtypes.RelayRequest, addr string) error

func VerifyReliabilityResults

func VerifyReliabilityResults(originalResult *RelayResult, dataReliabilityResults []*RelayResult, totalNumberOfSessions int) (conflict bool, conflicts []*conflicttypes.ResponseConflict)

Types

type FinalizationConsensus

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

func (*FinalizationConsensus) ExpectedBlockHeight

func (s *FinalizationConsensus) ExpectedBlockHeight(chainParser chainlib.ChainParser) (expectedBlockHeight int64, numOfProviders int)

returns the expected latest block, does the calculation on finalized entries then extrapolates the ending based on blockDistance

func (*FinalizationConsensus) NewEpoch

func (fc *FinalizationConsensus) NewEpoch(epoch uint64)

func (*FinalizationConsensus) UpdateFinalizedHashes

func (fc *FinalizationConsensus) UpdateFinalizedHashes(blockDistanceForFinalizedData int64, providerAddress string, latestBlock int64, finalizedBlocks map[int64]string, req *pairingtypes.RelayRequest, reply *pairingtypes.RelayReply) (finalizationConflict *conflicttypes.FinalizationConflict, err error)

Compare finalized block hashes with previous providers Looks for discrepancy with current epoch providers if no conflicts, insert into consensus and break create new consensus group if no consensus matched check for discrepancy with old epoch checks if there is a consensus mismatch between hashes provided by different providers

type ProviderHashesConsensus

type ProviderHashesConsensus struct {
	FinalizedBlocksHashes map[int64]string
	// contains filtered or unexported fields
}

type RelayRequestCommonData

type RelayRequestCommonData struct {
	ChainID        string `protobuf:"bytes,1,opt,name=chainID,proto3" json:"chainID,omitempty"`
	ConnectionType string `protobuf:"bytes,2,opt,name=connection_type,json=connectionType,proto3" json:"connection_type,omitempty"`
	ApiUrl         string `protobuf:"bytes,3,opt,name=api_url,json=apiUrl,proto3" json:"api_url,omitempty"`
	Data           []byte `protobuf:"bytes,6,opt,name=data,proto3" json:"data,omitempty"`
	RequestBlock   int64  `protobuf:"varint,11,opt,name=request_block,json=requestBlock,proto3" json:"request_block,omitempty"`
}

func NewRelayRequestCommonData

func NewRelayRequestCommonData(chainID string, connectionType string, apiUrl string, data []byte, requestBlock int64) RelayRequestCommonData

type RelayResult

type RelayResult struct {
	Request         *pairingtypes.RelayRequest
	Reply           *pairingtypes.RelayReply
	ProviderAddress string
	ReplyServer     *pairingtypes.Relayer_RelaySubscribeClient
	Finalized       bool
}