gossip

package
v0.0.0-...-2cf946a Latest Latest
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 Go to latest Published: Jan 21, 2022 License: MIT Imports: 91 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	HandshakeMsg = 0

	// Signals about the current synchronization status.
	// The current peer's status is used during packs downloading,
	// and to estimate may peer be interested in the new event or not
	// (based on peer's epoch).
	ProgressMsg = 1

	EvmTxsMsg         = 2
	NewEvmTxHashesMsg = 3
	GetEvmTxsMsg      = 4

	// Non-aggressive events propagation. Signals about newly-connected
	// batch of events, sending only their IDs.
	NewEventIDsMsg = 5

	// Request the batch of events by IDs
	GetEventsMsg = 6
	// Contains the batch of events.
	// May be an answer to GetEventsMsg, or be sent during aggressive events propagation.
	EventsMsg = 7

	// Request a range of events by a selector
	RequestEventsStream = 8
	// Contains the requested events by RequestEventsStream
	EventsStreamResponse = 9
)

protocol message codes

View Source 
const (
	ErrMsgTooLarge = iota
	ErrDecode
	ErrInvalidMsgCode
	ErrProtocolVersionMismatch
	ErrNetworkIDMismatch
	ErrGenesisMismatch
	ErrNoStatusMsg
	ErrExtraStatusMsg
	ErrSuspendedPeer
	ErrEmptyMessage = 0xf00
)
View Source 
const ProtocolName = "opera"

ProtocolName is the official short name of the protocol used during capability negotiation.

View Source 
const (
	ProtocolVersion = 62 // derived from eth62
)

Constants to match up protocol versions and messages

Variables

View Source 
var ProtocolVersions = []uint{ProtocolVersion}

ProtocolVersions are the supported versions of the protocol (first is primary).

Functions

func MakeProtocols 

func MakeProtocols(svc *Service, backend *ProtocolManager, network uint64, disc enode.Iterator) []p2p.Protocol

MakeProtocols constructs the P2P protocol definitions for `opera`.

func NewGasPowerContext 

func NewGasPowerContext(s *Store, validators *pos.Validators, epoch idx.Epoch, cfg opera.EconomyRules) *gaspowercheck.ValidationContext

NewGasPowerContext reads current validation context for gaspowercheck

func NewPeer 

func NewPeer(version int, p *p2p.Peer, rw p2p.MsgReadWriter, cfg PeerCacheConfig) *peer

func SplitTransactions 

func SplitTransactions(txs types.Transactions, fn func(types.Transactions))

func StartENRUpdater 

func StartENRUpdater(svc *Service, ln *enode.LocalNode)

StartENRUpdater starts the `opera` ENR updater loop, which listens for chain head events and updates the requested node record whenever a fork is passed.

Types

type BlockEpochState 

type BlockEpochState struct {
	BlockState *blockproc.BlockState
	EpochState *blockproc.EpochState
}

type BlockProc 

type BlockProc struct {
	SealerModule        blockproc.SealerModule
	TxListenerModule    blockproc.TxListenerModule
	GenesisTxTransactor blockproc.TxTransactor
	PreTxTransactor     blockproc.TxTransactor
	PostTxTransactor    blockproc.TxTransactor
	EventsModule        blockproc.ConfirmedEventsModule
	EVMModule           blockproc.EVM
}

func DefaultBlockProc 

func DefaultBlockProc(g opera.Genesis) BlockProc

type Config 

type Config struct {
	Emitter emitter.Config
	TxPool  evmcore.TxPoolConfig

	FilterAPI filters.Config

	TxIndex bool // Whether to enable indexing transactions and receipts or not

	// Protocol options
	Protocol ProtocolConfig

	HeavyCheck heavycheck.Config

	// Gas Price Oracle options
	GPO gasprice.Config

	VersionWatcher verwatcher.Config

	// RPCGasCap is the global gas cap for eth-call variants.
	RPCGasCap uint64 `toml:",omitempty"`

	// RPCTxFeeCap is the global transaction fee(price * gaslimit) cap for
	// send-transction variants. The unit is ether.
	RPCTxFeeCap float64 `toml:",omitempty"`

	// allows only for EIP155 transactions.
	AllowUnprotectedTxs bool

	ExtRPCEnabled bool

	RPCLogsBloom bool
}

Config for the gossip service.

func DefaultConfig 

func DefaultConfig(scale cachescale.Func) Config

DefaultConfig returns the default configurations for the gossip service.

func FakeConfig 

func FakeConfig(num int, scale cachescale.Func) Config

FakeConfig returns the default configurations for the gossip service in fakenet.

func (*Config) Validate 

func (c *Config) Validate() error

type Enr 

type Enr struct {
	ForkID forkid.ID
	// Ignore additional fields (for forward compatibility).
	Rest []rlp.RawValue `rlp:"tail"`
}

Enr is ENR entry which advertises eth protocol on the discovery network.

func (Enr) ENRKey 

func (e Enr) ENRKey() string

ENRKey implements enr.Entry.

type EthAPIBackend 

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

EthAPIBackend implements ethapi.Backend.

func (*EthAPIBackend) AccountManager 

func (b *EthAPIBackend) AccountManager() *accounts.Manager

func (*EthAPIBackend) BlockByHash 

func (b *EthAPIBackend) BlockByHash(ctx context.Context, h common.Hash) (*evmcore.EvmBlock, error)

func (*EthAPIBackend) BlockByNumber 

func (b *EthAPIBackend) BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*evmcore.EvmBlock, error)

BlockByNumber returns block by its number.

func (*EthAPIBackend) CalcLogsBloom 

func (b *EthAPIBackend) CalcLogsBloom() bool

func (*EthAPIBackend) ChainConfig 

func (b *EthAPIBackend) ChainConfig() *params.ChainConfig

ChainConfig returns the active chain configuration.

func (*EthAPIBackend) ChainDb 

func (b *EthAPIBackend) ChainDb() ethdb.Database

func (*EthAPIBackend) CurrentBlock 

func (b *EthAPIBackend) CurrentBlock() *evmcore.EvmBlock

func (*EthAPIBackend) CurrentEpoch 

func (b *EthAPIBackend) CurrentEpoch(ctx context.Context) idx.Epoch

CurrentEpoch returns current epoch number.

func (*EthAPIBackend) EvmLogIndex 

func (b *EthAPIBackend) EvmLogIndex() *topicsdb.Index

func (*EthAPIBackend) ExtRPCEnabled 

func (b *EthAPIBackend) ExtRPCEnabled() bool

func (*EthAPIBackend) ForEachEpochEvent 

func (b *EthAPIBackend) ForEachEpochEvent(ctx context.Context, epoch rpc.BlockNumber, onEvent func(event *inter.EventPayload) bool) error

ForEachEpochEvent iterates all the events which are observed by head, and accepted by a filter. filter CANNOT called twice for the same event.

func (*EthAPIBackend) GetDelegation 

func (b *EthAPIBackend) GetDelegation(ctx context.Context, id sfcapi.DelegationID) (*sfcapi.SfcDelegation, error)

func (*EthAPIBackend) GetDelegationClaimedRewards 

func (b *EthAPIBackend) GetDelegationClaimedRewards(ctx context.Context, id sfcapi.DelegationID) (*big.Int, error)

func (*EthAPIBackend) GetDelegationsByAddress 

func (b *EthAPIBackend) GetDelegationsByAddress(ctx context.Context, addr common.Address) ([]sfcapi.SfcDelegationAndID, error)

func (*EthAPIBackend) GetDelegationsOf 

func (b *EthAPIBackend) GetDelegationsOf(ctx context.Context, stakerID idx.ValidatorID) ([]sfcapi.SfcDelegationAndID, error)

func (*EthAPIBackend) GetDowntime 

func (b *EthAPIBackend) GetDowntime(ctx context.Context, stakerID idx.ValidatorID) (idx.Block, inter.Timestamp, error)

func (*EthAPIBackend) GetEVM 

func (b *EthAPIBackend) GetEVM(ctx context.Context, msg evmcore.Message, state *state.StateDB, header *evmcore.EvmHeader, vmConfig *vm.Config) (*vm.EVM, func() error, error)

func (*EthAPIBackend) GetEvent 

func (b *EthAPIBackend) GetEvent(ctx context.Context, shortEventID string) (*inter.Event, error)

GetEvent returns the Lachesis event header by hash or short ID.

func (*EthAPIBackend) GetEventPayload 

func (b *EthAPIBackend) GetEventPayload(ctx context.Context, shortEventID string) (*inter.EventPayload, error)

GetEventPayload returns Lachesis event by hash or short ID.

func (*EthAPIBackend) GetFullEventID 

func (b *EthAPIBackend) GetFullEventID(shortEventID string) (hash.Event, error)

GetFullEventID "converts" ShortID to full event's hash, by searching in events DB.

func (*EthAPIBackend) GetHeads 

func (b *EthAPIBackend) GetHeads(ctx context.Context, epoch rpc.BlockNumber) (heads hash.Events, err error)

GetHeads returns IDs of all the epoch events with no descendants. * When epoch is -2 the heads for latest epoch are returned. * When epoch is -1 the heads for latest sealed epoch are returned.

func (*EthAPIBackend) GetLogs 

func (b *EthAPIBackend) GetLogs(ctx context.Context, block common.Hash) ([][]*types.Log, error)

func (*EthAPIBackend) GetOriginatedFee 

func (b *EthAPIBackend) GetOriginatedFee(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)

func (*EthAPIBackend) GetPoolNonce 

func (b *EthAPIBackend) GetPoolNonce(ctx context.Context, addr common.Address) (uint64, error)

func (*EthAPIBackend) GetPoolTransaction 

func (b *EthAPIBackend) GetPoolTransaction(hash common.Hash) *types.Transaction

func (*EthAPIBackend) GetPoolTransactions 

func (b *EthAPIBackend) GetPoolTransactions() (types.Transactions, error)

func (*EthAPIBackend) GetReceipts 

func (b *EthAPIBackend) GetReceipts(ctx context.Context, block common.Hash) (types.Receipts, error)

GetReceipts retrieves the receipts for all transactions in a given block.

func (*EthAPIBackend) GetReceiptsByNumber 

func (b *EthAPIBackend) GetReceiptsByNumber(ctx context.Context, number rpc.BlockNumber) (types.Receipts, error)

GetReceiptsByNumber returns receipts by block number.

func (*EthAPIBackend) GetRewardWeights 

func (b *EthAPIBackend) GetRewardWeights(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, *big.Int, error)

func (*EthAPIBackend) GetStaker 

func (b *EthAPIBackend) GetStaker(ctx context.Context, stakerID idx.ValidatorID) (*sfcapi.SfcStaker, error)

func (*EthAPIBackend) GetStakerClaimedRewards 

func (b *EthAPIBackend) GetStakerClaimedRewards(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)

func (*EthAPIBackend) GetStakerDelegationsClaimedRewards 

func (b *EthAPIBackend) GetStakerDelegationsClaimedRewards(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)

func (*EthAPIBackend) GetStakerID 

func (b *EthAPIBackend) GetStakerID(ctx context.Context, addr common.Address) (idx.ValidatorID, error)

func (*EthAPIBackend) GetStakerPoI 

func (b *EthAPIBackend) GetStakerPoI(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)

func (*EthAPIBackend) GetStakers 

func (b *EthAPIBackend) GetStakers(ctx context.Context) ([]sfcapi.SfcStakerAndID, error)

func (*EthAPIBackend) GetTd 

func (b *EthAPIBackend) GetTd(_ common.Hash) *big.Int

func (*EthAPIBackend) GetTransaction 

func (b *EthAPIBackend) GetTransaction(ctx context.Context, txHash common.Hash) (*types.Transaction, uint64, uint64, error)

func (*EthAPIBackend) GetUptime 

func (b *EthAPIBackend) GetUptime(ctx context.Context, stakerID idx.ValidatorID) (*big.Int, error)

func (*EthAPIBackend) GetValidators 

func (b *EthAPIBackend) GetValidators(ctx context.Context) *pos.Validators

func (*EthAPIBackend) HeaderByHash 

func (b *EthAPIBackend) HeaderByHash(ctx context.Context, h common.Hash) (*evmcore.EvmHeader, error)

HeaderByHash returns evm header by its (atropos) hash.

func (*EthAPIBackend) HeaderByNumber 

func (b *EthAPIBackend) HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*evmcore.EvmHeader, error)

func (*EthAPIBackend) MaxGasLimit 

func (b *EthAPIBackend) MaxGasLimit() uint64

func (*EthAPIBackend) MinGasPrice 

func (b *EthAPIBackend) MinGasPrice() *big.Int

func (*EthAPIBackend) Progress 

func (b *EthAPIBackend) Progress() ethapi.PeerProgress

Progress returns current synchronization status of this node

func (*EthAPIBackend) RPCGasCap 

func (b *EthAPIBackend) RPCGasCap() uint64

func (*EthAPIBackend) RPCTxFeeCap 

func (b *EthAPIBackend) RPCTxFeeCap() float64

func (*EthAPIBackend) SealedEpochTiming 

func (b *EthAPIBackend) SealedEpochTiming(ctx context.Context) (start inter.Timestamp, end inter.Timestamp)

func (*EthAPIBackend) SendTx 

func (b *EthAPIBackend) SendTx(ctx context.Context, signedTx *types.Transaction) error

func (*EthAPIBackend) StateAndHeaderByNumberOrHash 

func (b *EthAPIBackend) StateAndHeaderByNumberOrHash(ctx context.Context, blockNrOrHash rpc.BlockNumberOrHash) (*state.StateDB, *evmcore.EvmHeader, error)

func (*EthAPIBackend) Stats 

func (b *EthAPIBackend) Stats() (pending int, queued int)

func (*EthAPIBackend) SubscribeLogsEvent 

func (b *EthAPIBackend) SubscribeLogsEvent(ch chan<- []*types.Log) notify.Subscription

func (*EthAPIBackend) SubscribeNewBlockEvent 

func (b *EthAPIBackend) SubscribeNewBlockEvent(ch chan<- evmcore.ChainHeadNotify) notify.Subscription

func (*EthAPIBackend) SubscribeNewTxsEvent 

func (b *EthAPIBackend) SubscribeNewTxsEvent(ch chan<- core.NewTxsEvent) notify.Subscription

func (*EthAPIBackend) SubscribeNewTxsNotify 

func (b *EthAPIBackend) SubscribeNewTxsNotify(ch chan<- evmcore.NewTxsNotify) notify.Subscription

func (*EthAPIBackend) SuggestPrice 

func (b *EthAPIBackend) SuggestPrice(ctx context.Context) (*big.Int, error)

func (*EthAPIBackend) TxPoolContent 

func (b *EthAPIBackend) TxPoolContent() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)

func (*EthAPIBackend) UnprotectedAllowed 

func (b *EthAPIBackend) UnprotectedAllowed() bool

type EvmStateReader 

type EvmStateReader struct {
	*ServiceFeed
	// contains filtered or unexported fields
}

func (*EvmStateReader) Config 

func (r *EvmStateReader) Config() *params.ChainConfig

func (*EvmStateReader) CurrentBlock 

func (r *EvmStateReader) CurrentBlock() *evmcore.EvmBlock

func (*EvmStateReader) CurrentHeader 

func (r *EvmStateReader) CurrentHeader() *evmcore.EvmHeader

func (*EvmStateReader) GetBlock 

func (r *EvmStateReader) GetBlock(h common.Hash, n uint64) *evmcore.EvmBlock

func (*EvmStateReader) GetHeader 

func (r *EvmStateReader) GetHeader(h common.Hash, n uint64) *evmcore.EvmHeader

func (*EvmStateReader) MaxGasLimit 

func (r *EvmStateReader) MaxGasLimit() uint64

func (*EvmStateReader) MinGasPrice 

func (r *EvmStateReader) MinGasPrice() *big.Int

MinGasPrice returns current hard lower bound for gas price

func (*EvmStateReader) RecommendedMinGasPrice 

func (r *EvmStateReader) RecommendedMinGasPrice() *big.Int

RecommendedMinGasPrice returns current soft lower bound for gas price

func (*EvmStateReader) StateAt 

func (r *EvmStateReader) StateAt(root common.Hash) (*state.StateDB, error)

func (*EvmStateReader) TxExists 

func (r *EvmStateReader) TxExists(txid common.Hash) bool

type ExtendedTxPosition 

type ExtendedTxPosition struct {
	evmstore.TxPosition
	EventCreator idx.ValidatorID
}

type GPOBackend 

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

func (*GPOBackend) GetLatestBlockIndex 

func (b *GPOBackend) GetLatestBlockIndex() idx.Block

func (*GPOBackend) GetPendingRules 

func (b *GPOBackend) GetPendingRules() opera.Rules

func (*GPOBackend) GetRules 

func (b *GPOBackend) GetRules() opera.Rules

func (*GPOBackend) TotalGasPowerLeft 

func (b *GPOBackend) TotalGasPowerLeft() uint64

TotalGasPowerLeft returns a total amount of obtained gas power by the validators, according to the latest events from each validator

type GasPowerCheckReader 

type GasPowerCheckReader struct {
	Ctx atomic.Value
}

GasPowerCheckReader is a helper to run gas power check

func (*GasPowerCheckReader) GetValidationContext 

func (r *GasPowerCheckReader) GetValidationContext() *gaspowercheck.ValidationContext

GetValidationContext returns current validation context for gaspowercheck

type HeavyCheckReader 

type HeavyCheckReader struct {
	Addrs atomic.Value
}

HeavyCheckReader is a helper to run heavy power checks

func (*HeavyCheckReader) GetEpochPubKeys 

func (r *HeavyCheckReader) GetEpochPubKeys() (map[idx.ValidatorID]validatorpk.PubKey, idx.Epoch)

GetEpochPubKeys is safe for concurrent use

type NodeInfo 

type NodeInfo struct {
	Network     uint64      `json:"network"` // network ID
	Genesis     common.Hash `json:"genesis"` // SHA3 hash of the host's genesis object
	Epoch       idx.Epoch   `json:"epoch"`
	NumOfBlocks idx.Block   `json:"blocks"`
}

NodeInfo represents a short summary of the sub-protocol metadata known about the host peer.

type PeerCacheConfig 

type PeerCacheConfig struct {
	MaxKnownTxs    int // Maximum transactions hashes to keep in the known list (prevent DOS)
	MaxKnownEvents int // Maximum event hashes to keep in the known list (prevent DOS)
	// MaxQueuedItems is the maximum number of items to queue up before
	// dropping broadcasts. This is a sensitive number as a transaction list might
	// contain a single transaction, or thousands.
	MaxQueuedItems idx.Event
	MaxQueuedSize  uint64
}

func DefaultPeerCacheConfig 

func DefaultPeerCacheConfig(scale cachescale.Func) PeerCacheConfig

type PeerInfo 

type PeerInfo struct {
	Version     int       `json:"version"` // protocol version negotiated
	Epoch       idx.Epoch `json:"epoch"`
	NumOfBlocks idx.Block `json:"blocks"`
}

PeerInfo represents a short summary of the sub-protocol metadata known about a connected peer.

type PeerProgress 

type PeerProgress struct {
	Epoch            idx.Epoch
	LastBlockIdx     idx.Block
	LastBlockAtropos hash.Event
	// Currently unused
	HighestLamport idx.Lamport
}

PeerProgress is synchronization status of a peer

func (*PeerProgress) Less 

func (a *PeerProgress) Less(b PeerProgress) bool

type ProtocolConfig 

type ProtocolConfig struct {
	LatencyImportance    int
	ThroughputImportance int

	EventsSemaphoreLimit dag.Metric
	MsgsSemaphoreLimit   dag.Metric
	MsgsSemaphoreTimeout time.Duration

	ProgressBroadcastPeriod time.Duration

	Processor dagprocessor.Config

	DagFetcher    itemsfetcher.Config
	TxFetcher     itemsfetcher.Config
	StreamLeecher streamleecher.Config
	StreamSeeder  streamseeder.Config

	MaxInitialTxHashesSend   int
	MaxRandomTxHashesSend    int
	RandomTxHashesSendPeriod time.Duration

	PeerCache PeerCacheConfig
}

ProtocolConfig is config for p2p protocol

type ProtocolManager 

type ProtocolManager struct {
	logger.Instance
	// contains filtered or unexported fields
}

func (*ProtocolManager) BroadcastEvent 

func (pm *ProtocolManager) BroadcastEvent(event *inter.EventPayload, passed time.Duration) int

BroadcastEvent will either propagate a event to a subset of it's peers, or will only announce it's availability (depending what's requested).

func (*ProtocolManager) BroadcastTxs 

func (pm *ProtocolManager) BroadcastTxs(txs types.Transactions)

BroadcastTxs will propagate a batch of transactions to all peers which are not known to already have the given transaction.

func (*ProtocolManager) NodeInfo 

func (pm *ProtocolManager) NodeInfo() *NodeInfo

NodeInfo retrieves some protocol metadata about the running host node.

func (*ProtocolManager) Start 

func (pm *ProtocolManager) Start(maxPeers int)

func (*ProtocolManager) Stop 

func (pm *ProtocolManager) Stop()

type PublicEthereumAPI 

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

PublicEthereumAPI provides an API to access Ethereum-like information. It is a github.com/ethereum/go-ethereum/eth simulation for console.

func NewPublicEthereumAPI 

func NewPublicEthereumAPI(s *Service) *PublicEthereumAPI

NewPublicEthereumAPI creates a new Ethereum protocol API for gossip.

func (*PublicEthereumAPI) ChainId 

func (api *PublicEthereumAPI) ChainId() hexutil.Uint64

ChainId is the EIP-155 replay-protection chain id for the current ethereum chain config.

func (*PublicEthereumAPI) Coinbase 

func (api *PublicEthereumAPI) Coinbase() (common.Address, error)

Coinbase returns the zero address for web3 compatibility

func (*PublicEthereumAPI) Etherbase 

func (api *PublicEthereumAPI) Etherbase() (common.Address, error)

Etherbase returns the zero address for web3 compatibility

func (*PublicEthereumAPI) Hashrate 

func (api *PublicEthereumAPI) Hashrate() hexutil.Uint64

Hashrate returns the zero POW hashrate for web3 compatibility

type Service 

type Service struct {
	Name string

	EthAPI *EthAPIBackend

	logger.Instance
	// contains filtered or unexported fields
}

Service implements go-ethereum/node.Service interface.

func NewService 

func NewService(stack *node.Node, config Config, store *Store, signer valkeystore.SignerI, blockProc BlockProc, engine lachesis.Consensus, dagIndexer *vecmt.Index) (*Service, error)

func (*Service) APIs 

func (s *Service) APIs() []rpc.API

APIs returns api methods the service wants to expose on rpc channels.

func (*Service) AccountManager 

func (s *Service) AccountManager() *accounts.Manager

AccountManager return node's account manager

func (*Service) DagProcessor 

func (s *Service) DagProcessor() *dagprocessor.Processor

func (*Service) GetConsensusCallbacks 

func (s *Service) GetConsensusCallbacks() lachesis.ConsensusCallbacks

GetConsensusCallbacks returns single (for Service) callback instance.

func (*Service) GetEvmStateReader 

func (s *Service) GetEvmStateReader() *EvmStateReader

func (*Service) Protocols 

func (s *Service) Protocols() []p2p.Protocol

Protocols returns protocols the service can communicate on.

func (*Service) Start 

func (s *Service) Start() error

Start method invoked when the node is ready to start the service.

func (*Service) Stop 

func (s *Service) Stop() error

Stop method invoked when the node terminates the service.

func (*Service) WaitBlockEnd 

func (s *Service) WaitBlockEnd()

WaitBlockEnd waits until parallel block processing is complete (if any)

type ServiceFeed 

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

func (*ServiceFeed) SubscribeNewBlock 

func (f *ServiceFeed) SubscribeNewBlock(ch chan<- evmcore.ChainHeadNotify) notify.Subscription

func (*ServiceFeed) SubscribeNewEmitted 

func (f *ServiceFeed) SubscribeNewEmitted(ch chan<- *inter.EventPayload) notify.Subscription

func (*ServiceFeed) SubscribeNewEpoch 

func (f *ServiceFeed) SubscribeNewEpoch(ch chan<- idx.Epoch) notify.Subscription

func (*ServiceFeed) SubscribeNewLogs 

func (f *ServiceFeed) SubscribeNewLogs(ch chan<- []*types.Log) notify.Subscription

func (*ServiceFeed) SubscribeNewTxs 

func (f *ServiceFeed) SubscribeNewTxs(ch chan<- core.NewTxsEvent) notify.Subscription

type Store 

type Store struct {
	logger.Instance
	// contains filtered or unexported fields
}

Store is a node persistent storage working over physical key-value database.

func NewMemStore 

func NewMemStore() *Store

NewMemStore creates store over memory map.

func NewStore 

func NewStore(dbs kvdb.FlushableDBProducer, cfg StoreConfig) *Store

NewStore creates store over key-value db.

func (*Store) ApplyGenesis 

func (s *Store) ApplyGenesis(blockProc BlockProc, g opera.Genesis) (genesisHash hash.Hash, err error)

ApplyGenesis writes initial state.

func (*Store) Close 

func (s *Store) Close()

Close closes underlying database.

func (*Store) Commit 

func (s *Store) Commit() error

Commit changes.

func (*Store) DelEvent 

func (s *Store) DelEvent(id hash.Event)

DelEvent deletes event.

func (*Store) EvmStore 

func (s *Store) EvmStore() *evmstore.Store

func (*Store) FindEventHashes 

func (s *Store) FindEventHashes(epoch idx.Epoch, lamport idx.Lamport, hashPrefix []byte) hash.Events

func (*Store) FlushBlockEpochState 

func (s *Store) FlushBlockEpochState()

FlushBlockEpochState stores the latest epoch and block state in DB

func (*Store) FlushHighestLamport 

func (s *Store) FlushHighestLamport()

func (*Store) ForEachBlock 

func (s *Store) ForEachBlock(fn func(index idx.Block, block *inter.Block))

func (*Store) ForEachEpochEvent 

func (s *Store) ForEachEpochEvent(epoch idx.Epoch, onEvent func(event *inter.EventPayload) bool)

func (*Store) ForEachEvent 

func (s *Store) ForEachEvent(start idx.Epoch, onEvent func(event *inter.EventPayload) bool)

func (*Store) ForEachEventRLP 

func (s *Store) ForEachEventRLP(start []byte, onEvent func(key hash.Event, event rlp.RawValue) bool)

func (*Store) GetBlock 

func (s *Store) GetBlock(n idx.Block) *inter.Block

GetBlock returns stored block.

func (*Store) GetBlockEpochState 

func (s *Store) GetBlockEpochState() (blockproc.BlockState, blockproc.EpochState)

func (*Store) GetBlockIndex 

func (s *Store) GetBlockIndex(id hash.Event) *idx.Block

GetBlockIndex returns stored block index.

func (*Store) GetBlockState 

func (s *Store) GetBlockState() blockproc.BlockState

GetBlockState retrieves the latest block state

func (*Store) GetEpoch 

func (s *Store) GetEpoch() idx.Epoch

GetEpoch retrieves the current epoch

func (*Store) GetEpochRules 

func (s *Store) GetEpochRules() (opera.Rules, idx.Epoch)

GetEpochRules retrieves current network rules and epoch atomically

func (*Store) GetEpochState 

func (s *Store) GetEpochState() blockproc.EpochState

GetEpochState retrieves the latest epoch state

func (*Store) GetEpochValidators 

func (s *Store) GetEpochValidators() (*pos.Validators, idx.Epoch)

GetEpochValidators retrieves the current epoch and validators atomically

func (*Store) GetEvent 

func (s *Store) GetEvent(id hash.Event) *inter.Event

GetEvent returns stored event.

func (*Store) GetEventPayload 

func (s *Store) GetEventPayload(id hash.Event) *inter.EventPayload

GetEventPayload returns stored event.

func (*Store) GetEventPayloadRLP 

func (s *Store) GetEventPayloadRLP(id hash.Event) rlp.RawValue

GetEventPayloadRLP returns stored event. Serialized.

func (*Store) GetGenesisBlockIndex 

func (s *Store) GetGenesisBlockIndex() *idx.Block

GetGenesisBlockIndex returns stored genesis block index.

func (*Store) GetGenesisHash 

func (s *Store) GetGenesisHash() *hash.Hash

func (*Store) GetGenesisTime 

func (s *Store) GetGenesisTime() inter.Timestamp

func (*Store) GetHeads 

func (s *Store) GetHeads(epoch idx.Epoch) *concurrent.EventsSet

GetHeads returns set of all the epoch event IDs with no descendants

func (*Store) GetHeadsSlice 

func (s *Store) GetHeadsSlice(epoch idx.Epoch) hash.Events

GetHeadsSlice returns IDs of all the epoch events with no descendants

func (*Store) GetHighestLamport 

func (s *Store) GetHighestLamport() idx.Lamport

func (*Store) GetLastEvent 

func (s *Store) GetLastEvent(epoch idx.Epoch, vid idx.ValidatorID) *hash.Event

GetLastEvents returns latest connected epoch event from specified validator

func (*Store) GetLastEvents 

func (s *Store) GetLastEvents(epoch idx.Epoch) *concurrent.ValidatorEventsSet

GetLastEvents returns latest connected epoch events from each validator

func (*Store) GetLatestBlockIndex 

func (s *Store) GetLatestBlockIndex() idx.Block

GetLatestBlockIndex retrieves the current block number

func (*Store) GetRules 

func (s *Store) GetRules() opera.Rules

GetRules retrieves current network rules

func (*Store) GetValidators 

func (s *Store) GetValidators() *pos.Validators

GetValidators retrieves current validators

func (*Store) HasEvent 

func (s *Store) HasEvent(h hash.Event) bool

HasEvent returns true if event exists.

func (*Store) Init 

func (s *Store) Init() error

func (*Store) IsCommitNeeded 

func (s *Store) IsCommitNeeded(epochSealing bool) bool

func (*Store) SetBlock 

func (s *Store) SetBlock(n idx.Block, b *inter.Block)

SetBlock stores chain block.

func (*Store) SetBlockEpochState 

func (s *Store) SetBlockEpochState(bs blockproc.BlockState, es blockproc.EpochState)

SetBlockEpochState stores the latest block and epoch state in memory

func (*Store) SetBlockIndex 

func (s *Store) SetBlockIndex(id hash.Event, n idx.Block)

SetBlockIndex stores chain block index.

func (*Store) SetEvent 

func (s *Store) SetEvent(e *inter.EventPayload)

SetEvent stores event.

func (*Store) SetGenesisBlockIndex 

func (s *Store) SetGenesisBlockIndex(n idx.Block)

SetGenesisBlockIndex stores genesis block index.

func (*Store) SetGenesisHash 

func (s *Store) SetGenesisHash(val hash.Hash)

func (*Store) SetHeads 

func (s *Store) SetHeads(epoch idx.Epoch, ids *concurrent.EventsSet)

func (*Store) SetHighestLamport 

func (s *Store) SetHighestLamport(lamport idx.Lamport)

func (*Store) SetLastEvents 

func (s *Store) SetLastEvents(epoch idx.Epoch, ids *concurrent.ValidatorEventsSet)

type StoreCacheConfig 

type StoreCacheConfig struct {
	// Cache size for full events.
	EventsNum  int
	EventsSize uint
	// Cache size for full blocks.
	BlocksNum  int
	BlocksSize uint
}

type StoreConfig 

type StoreConfig struct {
	Cache StoreCacheConfig
	// EVM is EVM store config
	EVM                 evmstore.StoreConfig
	MaxNonFlushedSize   int
	MaxNonFlushedPeriod time.Duration
}

StoreConfig is a config for store db.

func DefaultStoreConfig 

func DefaultStoreConfig(scale cachescale.Func) StoreConfig

DefaultStoreConfig for product.

func LiteStoreConfig 

func LiteStoreConfig() StoreConfig

LiteStoreConfig is for tests or inmemory.

type ValidatorsPubKeys 

type ValidatorsPubKeys struct {
	Epoch   idx.Epoch
	PubKeys map[idx.ValidatorID]validatorpk.PubKey
}

ValidatorsPubKeys stores info to authenticate validators

func NewEpochPubKeys 

func NewEpochPubKeys(s *Store, epoch idx.Epoch) *ValidatorsPubKeys

NewEpochPubKeys is the same as GetEpochValidators, but returns only addresses

Source Files

View all Source files

Directories

Path Synopsis
drivermodule
eventmodule
evmmodule
sealmodule
verwatcher
contract
ballot
driver100
driverauth100
netinit100
sfc100
mock
Package mock is a generated GoMock package.
 Package mock is a generated GoMock package.
originatedtxs
evmpruner
Package filters implements an ethereum filtering system for block, transactions and log events.
 Package filters implements an ethereum filtering system for block, transactions and log events.

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