smartbft

package
v1.4.0-rc1.0...-b3f6615 Latest Latest
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 Go to latest Published: Dec 20, 2024 License: Apache-2.0 Imports: 54 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func LastBlockFromLedgerOrPanic 

func LastBlockFromLedgerOrPanic(ledger Ledger, logger Logger) *cb.Block

LastBlockFromLedgerOrPanic returns the last block from the ledger

func LastConfigBlockFromLedgerOrPanic 

func LastConfigBlockFromLedgerOrPanic(ledger Ledger, logger Logger) *cb.Block

LastConfigBlockFromLedgerOrPanic returns the last config block from the ledger

func PreviousConfigBlockFromLedgerOrPanic 

func PreviousConfigBlockFromLedgerOrPanic(ledger Ledger, logger Logger) *cb.Block

func ProposalToBlock 

func ProposalToBlock(proposal types.Proposal) (*cb.Block, error)

ProposalToBlock marshals the proposal the block

func RemoteNodesFromConfigBlock 

func RemoteNodesFromConfigBlock(block *cb.Block, logger *flogging.FabricLogger, bccsp bccsp.BCCSP) (*nodeConfig, error)

RemoteNodesFromConfigBlock unmarshals the node config from the block metadata

Types

type AccessController 

type AccessController interface {
	// Evaluate takes a set of SignedData and evaluates whether this set of signatures satisfies the policy
	Evaluate(signatureSet []*protoutil.SignedData) error
}

AccessController is used to determine if a signature of a certain client is valid

type Assembler 

type Assembler struct {
	RuntimeConfig   *atomic.Value
	Logger          *flogging.FabricLogger
	VerificationSeq func() uint64
}

Assembler is the proposal assembler

func (*Assembler) AssembleProposal 

func (a *Assembler) AssembleProposal(metadata []byte, requests [][]byte) (nextProp types.Proposal)

AssembleProposal assembles a proposal from the metadata and the request

type BFTBlockDeliverer 

type BFTBlockDeliverer interface {
	Stop()
	DeliverBlocks()
	Initialize(channelConfig *cb.Config, selfEndpoint string)
}

type BFTChain 

type BFTChain struct {
	RuntimeConfig *atomic.Value
	Channel       string
	Config        types.Configuration

	Comm             cluster.Communicator
	SignerSerializer signerSerializer
	PolicyManager    policies.Manager
	Logger           *flogging.FabricLogger
	WALDir           string

	ClusterService *cluster.ClusterService

	Metrics       *Metrics
	MetricsBFT    *api.Metrics
	MetricsWalBFT *wal.Metrics
	// contains filtered or unexported fields
}

BFTChain implements Chain interface to wire with BFT smart library

func NewChain 

func NewChain(
	cv ConfigValidator,
	selfID uint64,
	config types.Configuration,
	walDir string,
	clusterDialer *cluster.PredicateDialer,
	localConfigCluster localconfig.Cluster,
	comm cluster.Communicator,
	signerSerializer signerSerializer,
	policyManager policies.Manager,
	support consensus.ConsenterSupport,
	metrics *Metrics,
	metricsBFT *api.Metrics,
	metricsWalBFT *wal.Metrics,
	bccsp bccsp.BCCSP,
	egressCommFactory EgressCommFactory,
	synchronizerFactory SynchronizerFactory,
) (*BFTChain, error)

NewChain creates new BFT Smart chain

func (*BFTChain) BlockToDecision 

func (c *BFTChain) BlockToDecision(block *cb.Block) *types.Decision

func (*BFTChain) Configure 

func (c *BFTChain) Configure(config *cb.Envelope, configSeq uint64) error

Configure accepts a message which reconfigures the channel and will trigger an update to the configSeq if committed. The configuration must have been triggered by a ConfigUpdate message. If the config sequence advances, it is the responsibility of the consenter to recompute the resulting config, discarding the message if the reconfiguration is no longer valid. The consenter may return an error, indicating the message was not accepted

func (*BFTChain) Deliver 

func (c *BFTChain) Deliver(proposal types.Proposal, signatures []types.Signature) types.Reconfig

Deliver delivers proposal, writes block with transactions and metadata

func (*BFTChain) Errored 

func (c *BFTChain) Errored() <-chan struct{}

Errored returns a channel which will close when an error has occurred. This is especially useful for the Deliver client, who must terminate waiting clients when the consenter is not up to date.

func (*BFTChain) GetLeaderID 

func (c *BFTChain) GetLeaderID() uint64

func (*BFTChain) Halt 

func (c *BFTChain) Halt()

Halt frees the resources which were allocated for this Chain.

func (*BFTChain) HandleMessage 

func (c *BFTChain) HandleMessage(sender uint64, m *smartbftprotos.Message)

HandleMessage handles the message from the sender

func (*BFTChain) HandleRequest 

func (c *BFTChain) HandleRequest(sender uint64, req []byte)

HandleRequest handles the request from the sender

func (*BFTChain) Order 

func (c *BFTChain) Order(env *cb.Envelope, configSeq uint64) error

Order accepts a message which has been processed at a given configSeq. If the configSeq advances, it is the responsibility of the consenter to revalidate and potentially discard the message The consenter may return an error, indicating the message was not accepted

func (*BFTChain) Start 

func (c *BFTChain) Start()

Start should allocate whatever resources are needed for staying up to date with the chain. Typically, this involves creating a thread which reads from the ordering source, passes those messages to a block cutter, and writes the resulting blocks to the ledger.

func (*BFTChain) StatusReport 

func (c *BFTChain) StatusReport() (types2.ConsensusRelation, types2.Status)

StatusReport returns the ConsensusRelation & Status

func (*BFTChain) WaitReady 

func (c *BFTChain) WaitReady() error

WaitReady blocks waiting for consenter to be ready for accepting new messages. This is useful when consenter needs to temporarily block ingress messages so that in-flight messages can be consumed. It could return error if consenter is in erroneous states. If this blocking behavior is not desired, consenter could simply return nil.

type BFTDelivererFactory 

type BFTDelivererFactory interface {
	CreateBFTDeliverer(
		channelID string,
		blockHandler blocksprovider.BlockHandler,
		ledger blocksprovider.LedgerInfo,
		updatableBlockVerifier blocksprovider.UpdatableBlockVerifier,
		dialer blocksprovider.Dialer,
		orderersSourceFactory blocksprovider.OrdererConnectionSourceFactory,
		cryptoProvider bccsp.BCCSP,
		doneC chan struct{},
		signer identity.SignerSerializer,
		deliverStreamer blocksprovider.DeliverStreamer,
		censorshipDetectorFactory blocksprovider.CensorshipDetectorFactory,
		logger *flogging.FabricLogger,
		initialRetryInterval time.Duration,
		maxRetryInterval time.Duration,
		blockCensorshipTimeout time.Duration,
		maxRetryDuration time.Duration,
		maxRetryDurationExceededHandler blocksprovider.MaxRetryDurationExceededHandler,
	) BFTBlockDeliverer
}

type BFTSynchronizer 

type BFTSynchronizer struct {
	LatestConfig        func() (types.Configuration, []uint64)
	BlockToDecision     func(*common.Block) *types.Decision
	OnCommit            func(*common.Block) types.Reconfig
	Support             consensus.ConsenterSupport
	CryptoProvider      bccsp.BCCSP
	ClusterDialer       *cluster.PredicateDialer
	LocalConfigCluster  localconfig.Cluster
	BlockPullerFactory  BlockPullerFactory
	VerifierFactory     VerifierFactory
	BFTDelivererFactory BFTDelivererFactory
	Logger              *flogging.FabricLogger
	// contains filtered or unexported fields
}

func (*BFTSynchronizer) Buffer 

func (s *BFTSynchronizer) Buffer() *SyncBuffer

Buffer return the internal SyncBuffer for testability.

func (*BFTSynchronizer) Sync 

func (s *BFTSynchronizer) Sync() types.SyncResponse

type BlockPuller 

type BlockPuller interface {
	PullBlock(seq uint64) *cb.Block
	HeightsByEndpoints() (map[string]uint64, string, error)
	Close()
}

BlockPuller is used to pull blocks from other OSN

type BlockPullerFactory 

type BlockPullerFactory interface {
	// CreateBlockPuller creates a new block puller.
	CreateBlockPuller(
		support consensus.ConsenterSupport,
		baseDialer *cluster.PredicateDialer,
		clusterConfig localconfig.Cluster,
		bccsp bccsp.BCCSP,
	) (BlockPuller, error)
}

type Bundle 

type Bundle interface {
	channelconfig.Resources
}

Bundle defines the channelconfig resources interface

type ByteBufferTuple 

type ByteBufferTuple struct {
	A []byte
	B []byte
}

ByteBufferTuple is the byte slice tuple

func (*ByteBufferTuple) FromBytes 

func (bbt *ByteBufferTuple) FromBytes(bytes []byte) error

FromBytes unmarshals bytes to a buffer tuple

func (*ByteBufferTuple) ToBytes 

func (bbt *ByteBufferTuple) ToBytes() []byte

ToBytes marshals the buffer tuple to bytes

type ChainGetter 

type ChainGetter interface {
	// GetChain obtains the ChainSupport for the given channel.
	// Returns nil, false when the ChainSupport for the given channel
	// isn't found.
	GetChain(chainID string) *multichannel.ChainSupport
}

ChainGetter obtains instances of ChainSupport for the given channel

type ConfigBlockValidator 

type ConfigBlockValidator struct {
	ConfigUpdateProposer ConfigUpdateProposer
	ValidatingChannel    string
	Filters              Filters
	Logger               *flogging.FabricLogger
}

ConfigBlockValidator struct

func (*ConfigBlockValidator) ValidateConfig 

func (cbv *ConfigBlockValidator) ValidateConfig(envelope *cb.Envelope) error

ValidateConfig validates config from envelope

type ConfigTxValidator 

type ConfigTxValidator interface {
	configtx.Validator
}

ConfigTxValidator defines the configtx validator interface

type ConfigUpdateProposer 

type ConfigUpdateProposer interface {
	ProposeConfigUpdate(channel string, configtx *cb.Envelope) (*cb.ConfigEnvelope, error)
}

ConfigUpdateProposer produces a ConfigEnvelope

type ConfigValidator 

type ConfigValidator interface {
	ValidateConfig(env *cb.Envelope) error
}

ConfigValidator interface

type Consenter 

type Consenter struct {
	CreateChain      func(chainName string)
	GetPolicyManager PolicyManagerRetriever
	Logger           *flogging.FabricLogger
	Identity         []byte
	Comm             *cluster.AuthCommMgr
	Chains           ChainGetter
	SignerSerializer SignerSerializer
	Registrar        *multichannel.Registrar
	WALBaseDir       string
	ClusterDialer    *cluster.PredicateDialer
	Conf             *localconfig.TopLevel
	Metrics          *Metrics
	MetricsBFT       *api.Metrics
	MetricsWalBFT    *wal.Metrics
	BCCSP            bccsp.BCCSP
	ClusterService   *cluster.ClusterService
}

Consenter implementation of the BFT smart based consenter

func New 

func New(
	pmr PolicyManagerRetriever,
	signerSerializer SignerSerializer,
	clusterDialer *cluster.PredicateDialer,
	conf *localconfig.TopLevel,
	srvConf comm.ServerConfig,
	srv *comm.GRPCServer,
	r *multichannel.Registrar,
	metricsProvider metrics.Provider,
	clusterMetrics *cluster.Metrics,
	BCCSP bccsp.BCCSP,
) *Consenter

New creates Consenter of type smart bft

func (*Consenter) HandleChain 

func (c *Consenter) HandleChain(support consensus.ConsenterSupport, metadata *cb.Metadata) (consensus.Chain, error)

HandleChain returns a new Chain instance or an error upon failure

func (*Consenter) IsChannelMember 

func (c *Consenter) IsChannelMember(joinBlock *cb.Block) (bool, error)

func (*Consenter) ReceiverByChain 

func (c *Consenter) ReceiverByChain(channelID string) MessageReceiver

ReceiverByChain returns the MessageReceiver for the given channelID or nil if not found.

func (*Consenter) TargetChannel 

func (c *Consenter) TargetChannel(message proto.Message) string

TargetChannel extracts the channel from the given proto.Message. Returns an empty string on failure.

type ConsenterCertificate 

type ConsenterCertificate struct {
	ConsenterCertificate []byte
	CryptoProvider       bccsp.BCCSP
}

ConsenterCertificate denotes a TLS certificate of a consenter

func (ConsenterCertificate) IsConsenterOfChannel 

func (conCert ConsenterCertificate) IsConsenterOfChannel(configBlock *cb.Block) error

IsConsenterOfChannel returns whether the caller is a consenter of a channel by inspecting the given configuration block. It returns nil if true, else returns an error.

type ConsenterVerifier 

type ConsenterVerifier interface {
	// Evaluate takes a set of SignedData and evaluates whether this set of signatures satisfies the policy
	Evaluate(signatureSet []*protoutil.SignedData) error
}

ConsenterVerifier is used to determine whether a signature from one of the consenters is valid

type CounterConverter 

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

func (*CounterConverter) Add 

func (c *CounterConverter) Add(delta float64)

func (*CounterConverter) With 

func (c *CounterConverter) With(labelValues ...string) api.Counter

type CreateChainCallback 

type CreateChainCallback func()

CreateChainCallback creates a new chain

type Egress 

type Egress struct {
	Channel       string
	RPC           RPC
	Logger        Logger
	RuntimeConfig *atomic.Value
}

Egress implementation

func (*Egress) Nodes 

func (e *Egress) Nodes() []uint64

Nodes returns nodes from the runtime config

func (*Egress) SendConsensus 

func (e *Egress) SendConsensus(targetID uint64, m *protos.Message)

SendConsensus sends the BFT message to the cluster

func (*Egress) SendTransaction 

func (e *Egress) SendTransaction(targetID uint64, request []byte)

SendTransaction sends the transaction to the cluster

type EgressComm 

type EgressComm interface {
	api.Comm
}

Comm enables the communications between the nodes.

type EgressCommFactory 

type EgressCommFactory func(runtimeConfig *atomic.Value, channelId string, comm cluster.Communicator) EgressComm

type Filters 

type Filters interface {
	ApplyFilters(channel string, env *cb.Envelope) error
}

Filters applies the filters on the outer envelope

type GaugeConverter 

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

func (*GaugeConverter) Add 

func (g *GaugeConverter) Add(delta float64)

func (*GaugeConverter) Set 

func (g *GaugeConverter) Set(value float64)

func (*GaugeConverter) With 

func (g *GaugeConverter) With(labelValues ...string) api.Gauge

type HistogramConverter 

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

func (*HistogramConverter) Observe 

func (h *HistogramConverter) Observe(value float64)

func (*HistogramConverter) With 

func (h *HistogramConverter) With(labelValues ...string) api.Histogram

type Ingress 

type Ingress struct {
	Logger        WarningLogger
	ChainSelector ReceiverGetter
}

Ingress dispatches Submit and Step requests to the designated per chain instances

func (*Ingress) OnConsensus 

func (in *Ingress) OnConsensus(channel string, sender uint64, request *ab.ConsensusRequest) error

OnConsensus notifies the Ingress for a reception of a StepRequest from a given sender on a given channel

func (*Ingress) OnSubmit 

func (in *Ingress) OnSubmit(channel string, sender uint64, request *ab.SubmitRequest) error

OnSubmit notifies the Ingress for a reception of a SubmitRequest from a given sender on a given channel

type Ledger 

type Ledger interface {
	// Height returns the number of blocks in the ledger this channel is associated with.
	Height() uint64

	// Block returns a block with the given number,
	// or nil if such a block doesn't exist.
	Block(number uint64) *cb.Block
}

Ledger returns the height and a block with the given number

type Logger 

type Logger interface {
	Warnf(template string, args ...interface{})
	Panicf(template string, args ...interface{})
}

Logger specifies the logger

type MessageReceiver 

type MessageReceiver interface {
	HandleMessage(sender uint64, m *protos.Message)
	HandleRequest(sender uint64, req []byte)
}

MessageReceiver receives messages

type MetricProviderConverter 

type MetricProviderConverter struct {
	MetricsProvider metrics.Provider
}

func (*MetricProviderConverter) NewCounter 

func (m *MetricProviderConverter) NewCounter(opts api.CounterOpts) api.Counter

func (*MetricProviderConverter) NewGauge 

func (m *MetricProviderConverter) NewGauge(opts api.GaugeOpts) api.Gauge

func (*MetricProviderConverter) NewHistogram 

func (m *MetricProviderConverter) NewHistogram(opts api.HistogramOpts) api.Histogram

type Metrics 

type Metrics struct {
	ClusterSize          metrics.Gauge
	CommittedBlockNumber metrics.Gauge
	IsLeader             metrics.Gauge
	LeaderID             metrics.Gauge
}

Metrics defines the metrics for the cluster.

func NewMetrics 

func NewMetrics(p metrics.Provider) *Metrics

NewMetrics creates the Metrics

type NodeIdentitiesByID 

type NodeIdentitiesByID map[uint64][]byte

NodeIdentitiesByID stores Identities by id

func (NodeIdentitiesByID) IdentityToID 

func (nibd NodeIdentitiesByID) IdentityToID(identity []byte) (uint64, bool)

IdentityToID looks up the Identity in NodeIdentitiesByID and returns id and flag true if found

type PolicyManagerRetriever 

type PolicyManagerRetriever func(channel string) policies.Manager

PolicyManagerRetriever is the policy manager retriever function

type RPC 

type RPC interface {
	SendConsensus(dest uint64, msg *ab.ConsensusRequest) error
	// SendSubmit(dest uint64, request *ab.SubmitRequest) error
	SendSubmit(destination uint64, request *ab.SubmitRequest, report func(error)) error
}

RPC sends a consensus and submits a request

type ReceiverGetter 

type ReceiverGetter interface {
	// ReceiverByChain returns the MessageReceiver if it exists, or nil if it doesn't
	ReceiverByChain(channelID string) MessageReceiver
}

ReceiverGetter obtains instances of MessageReceiver given a channel ID

type RequestInspector 

type RequestInspector struct {
	ValidateIdentityStructure func(identity *msp.SerializedIdentity) error
	Logger                    *flogging.FabricLogger
}

RequestInspector inspects incomming requests and validates serialized identity

func (*RequestInspector) RequestID 

func (ri *RequestInspector) RequestID(rawReq []byte) types.RequestInfo

RequestID unwraps the request info from the raw request

type RuntimeConfig 

type RuntimeConfig struct {
	BFTConfig types.Configuration

	LastCommittedBlockHash string
	RemoteNodes            []cluster.RemoteNode
	ID2Identities          NodeIdentitiesByID
	LastBlock              *cb.Block
	LastConfigBlock        *cb.Block
	Nodes                  []uint64
	// contains filtered or unexported fields
}

RuntimeConfig defines the configuration of the consensus that is related to runtime.

func (RuntimeConfig) BlockCommitted 

func (rtc RuntimeConfig) BlockCommitted(block *cb.Block, bccsp bccsp.BCCSP) (RuntimeConfig, error)

BlockCommitted updates the config from the block

type Sequencer 

type Sequencer interface {
	Sequence() uint64
}

Sequencer returns sequences

type Signature 

type Signature struct {
	IdentifierHeader     []byte
	BlockHeader          []byte
	OrdererBlockMetadata []byte
}

Signature implementation

func (Signature) AsBytes 

func (sig Signature) AsBytes() []byte

AsBytes returns the message to sign

func (*Signature) Marshal 

func (sig *Signature) Marshal() []byte

Marshal the signature

func (*Signature) Unmarshal 

func (sig *Signature) Unmarshal(bytes []byte) error

Unmarshal the signature

type Signer 

type Signer struct {
	ID                 uint64
	SignerSerializer   SignerSerializer
	Logger             Logger
	LastConfigBlockNum func(*cb.Block) uint64
}

Signer implementation

func (*Signer) Sign 

func (s *Signer) Sign(msg []byte) []byte

Sign signs the message

func (*Signer) SignProposal 

func (s *Signer) SignProposal(proposal types.Proposal, _ []byte) *types.Signature

SignProposal signs the proposal

type SignerSerializer 

type SignerSerializer interface {
	identity.SignerSerializer
}

SignerSerializer signs messages and serializes identities

type SyncBuffer 

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

func NewSyncBuffer 

func NewSyncBuffer(capacity uint) *SyncBuffer

func (*SyncBuffer) HandleBlock 

func (sb *SyncBuffer) HandleBlock(channelID string, block *common.Block) error

HandleBlock gives the block to the next stage of processing after fetching it from a remote orderer.

func (*SyncBuffer) PullBlock 

func (sb *SyncBuffer) PullBlock(seq uint64) *common.Block

func (*SyncBuffer) Stop 

func (sb *SyncBuffer) Stop()

type Synchronizer 

type Synchronizer struct {
	LatestConfig       func() (types.Configuration, []uint64)
	BlockToDecision    func(*cb.Block) *types.Decision
	OnCommit           func(*cb.Block) types.Reconfig
	Support            consensus.ConsenterSupport
	CryptoProvider     bccsp.BCCSP
	ClusterDialer      *cluster.PredicateDialer
	LocalConfigCluster localconfig.Cluster
	BlockPullerFactory BlockPullerFactory
	Logger             *flogging.FabricLogger
	// contains filtered or unexported fields
}

Synchronizer implementation

func (*Synchronizer) Sync 

func (s *Synchronizer) Sync() types.SyncResponse

Sync synchronizes blocks and returns the response

type SynchronizerFactory 

type SynchronizerFactory interface {
	// CreateSynchronizer creates a new Synchronizer.
	CreateSynchronizer(
		logger *flogging.FabricLogger,
		localConfigCluster localconfig.Cluster,
		rtc RuntimeConfig,
		blockToDecision func(block *cb.Block) *types.Decision,
		pruneCommittedRequests func(block *cb.Block),
		updateRuntimeConfig func(block *cb.Block) types.Reconfig,
		support consensus.ConsenterSupport,
		bccsp bccsp.BCCSP,
		clusterDialer *cluster.PredicateDialer,
	) api.Synchronizer
}

type Verifier 

type Verifier struct {
	Channel               string
	RuntimeConfig         *atomic.Value
	ReqInspector          *RequestInspector
	ConsenterVerifier     ConsenterVerifier
	AccessController      AccessController
	VerificationSequencer Sequencer
	Ledger                Ledger
	Logger                *flogging.FabricLogger
	ConfigValidator       ConfigValidator
}

Verifier verifies proposals and signatures

func (*Verifier) AuxiliaryData 

func (v *Verifier) AuxiliaryData(msg []byte) []byte

AuxiliaryData unmarshals and returns auxiliary data from signature

func (*Verifier) RequestsFromProposal 

func (v *Verifier) RequestsFromProposal(proposal types.Proposal) []types.RequestInfo

RequestsFromProposal converts proposal to []RequestInfo

func (*Verifier) VerificationSequence 

func (v *Verifier) VerificationSequence() uint64

VerificationSequence returns verification sequence

func (*Verifier) VerifyConsenterSig 

func (v *Verifier) VerifyConsenterSig(signature types.Signature, prop types.Proposal) ([]byte, error)

VerifyConsenterSig verifies consenter signature

func (*Verifier) VerifyProposal 

func (v *Verifier) VerifyProposal(proposal types.Proposal) ([]types.RequestInfo, error)

VerifyProposal verifies proposal and returns []RequestInfo

func (*Verifier) VerifyRequest 

func (v *Verifier) VerifyRequest(rawRequest []byte) (types.RequestInfo, error)

VerifyRequest verifies raw request

func (*Verifier) VerifySignature 

func (v *Verifier) VerifySignature(signature types.Signature) error

VerifySignature verifies signature

type VerifierFactory 

type VerifierFactory interface {
	CreateBlockVerifier(
		configBlock *cb.Block,
		lastBlock *cb.Block,
		cryptoProvider bccsp.BCCSP,
		lg *flogging.FabricLogger,
	) (deliverclient.CloneableUpdatableBlockVerifier, error)
}

type WALConfig 

type WALConfig struct {
	WALDir            string // WAL data of <my-channel> is stored in WALDir/<my-channel>
	SnapDir           string // Snapshots of <my-channel> are stored in SnapDir/<my-channel>
	EvictionSuspicion string // Duration threshold that the node samples in order to suspect its eviction from the channel.
}

WALConfig consensus specific configuration parameters from orderer.yaml; for SmartBFT only WALDir is relevant.

type WarningLogger 

type WarningLogger interface {
	Warningf(template string, args ...interface{})
}

Source Files

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Directories

Path Synopsis
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