notifications

package
v0.14.6 Latest Latest
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 Go to latest Published: Mar 3, 2021 License: AGPL-3.0 Imports: 10 Imported by: 4

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Functions

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Types

type ConsensusTracingConsumer 

type ConsensusTracingConsumer struct {
	// inherit from noop consumer in order to satisfy the full interface
	NoopConsumer
	// contains filtered or unexported fields
}

ConsensusTracingConsumer is an implementation of the notifications consumer that adds tracing for consensus node hotstuff

func NewConsensusTracingConsumer 

func NewConsensusTracingConsumer(log zerolog.Logger, tracer module.Tracer, index storage.Index) *ConsensusTracingConsumer

func (*ConsensusTracingConsumer) OnBlockIncorporated 

func (tc *ConsensusTracingConsumer) OnBlockIncorporated(block *model.Block)

func (*ConsensusTracingConsumer) OnFinalizedBlock 

func (tc *ConsensusTracingConsumer) OnFinalizedBlock(block *model.Block)

func (*ConsensusTracingConsumer) OnProposingBlock 

func (tc *ConsensusTracingConsumer) OnProposingBlock(proposal *model.Proposal)

type LogConsumer 

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

LogConsumer is an implementation of the notifications consumer that logs a message for each event.

func NewLogConsumer 

func NewLogConsumer(log zerolog.Logger) *LogConsumer

func (*LogConsumer) OnBlockIncorporated 

func (lc *LogConsumer) OnBlockIncorporated(block *model.Block)

func (*LogConsumer) OnDoubleProposeDetected 

func (lc *LogConsumer) OnDoubleProposeDetected(block *model.Block, alt *model.Block)

func (*LogConsumer) OnDoubleVotingDetected 

func (lc *LogConsumer) OnDoubleVotingDetected(vote *model.Vote, alt *model.Vote)

func (*LogConsumer) OnEnteringView 

func (lc *LogConsumer) OnEnteringView(view uint64, leader flow.Identifier)

func (*LogConsumer) OnEventProcessed 

func (lc *LogConsumer) OnEventProcessed()

func (*LogConsumer) OnFinalizedBlock 

func (lc *LogConsumer) OnFinalizedBlock(block *model.Block)

func (*LogConsumer) OnForkChoiceGenerated 

func (lc *LogConsumer) OnForkChoiceGenerated(view uint64, qc *flow.QuorumCertificate)

func (*LogConsumer) OnInvalidVoteDetected 

func (lc *LogConsumer) OnInvalidVoteDetected(vote *model.Vote)

func (*LogConsumer) OnProposingBlock 

func (lc *LogConsumer) OnProposingBlock(block *model.Proposal)

func (*LogConsumer) OnQcConstructedFromVotes 

func (lc *LogConsumer) OnQcConstructedFromVotes(qc *flow.QuorumCertificate)

func (*LogConsumer) OnQcIncorporated 

func (lc *LogConsumer) OnQcIncorporated(qc *flow.QuorumCertificate)

func (*LogConsumer) OnQcTriggeredViewChange 

func (lc *LogConsumer) OnQcTriggeredViewChange(qc *flow.QuorumCertificate, newView uint64)

func (*LogConsumer) OnReachedTimeout 

func (lc *LogConsumer) OnReachedTimeout(info *model.TimerInfo)

func (*LogConsumer) OnReceiveProposal 

func (lc *LogConsumer) OnReceiveProposal(currentView uint64, proposal *model.Proposal)

func (*LogConsumer) OnReceiveVote 

func (lc *LogConsumer) OnReceiveVote(currentView uint64, vote *model.Vote)

func (*LogConsumer) OnStartingTimeout 

func (lc *LogConsumer) OnStartingTimeout(info *model.TimerInfo)

func (*LogConsumer) OnVoting 

func (lc *LogConsumer) OnVoting(vote *model.Vote)

type NoopConsumer 

type NoopConsumer struct{}

NoopConsumer is an implementation of the notifications consumer that doesn't do anything.

func NewNoopConsumer 

func NewNoopConsumer() *NoopConsumer

func (*NoopConsumer) OnBlockIncorporated 

func (*NoopConsumer) OnBlockIncorporated(*model.Block)

func (*NoopConsumer) OnDoubleProposeDetected 

func (*NoopConsumer) OnDoubleProposeDetected(*model.Block, *model.Block)

func (*NoopConsumer) OnDoubleVotingDetected 

func (*NoopConsumer) OnDoubleVotingDetected(*model.Vote, *model.Vote)

func (*NoopConsumer) OnEnteringView 

func (*NoopConsumer) OnEnteringView(uint64, flow.Identifier)

func (*NoopConsumer) OnEventProcessed 

func (*NoopConsumer) OnEventProcessed()

func (*NoopConsumer) OnFinalizedBlock 

func (*NoopConsumer) OnFinalizedBlock(*model.Block)

func (*NoopConsumer) OnForkChoiceGenerated 

func (*NoopConsumer) OnForkChoiceGenerated(uint64, *flow.QuorumCertificate)

func (*NoopConsumer) OnInvalidVoteDetected 

func (*NoopConsumer) OnInvalidVoteDetected(*model.Vote)

func (*NoopConsumer) OnProposingBlock 

func (c *NoopConsumer) OnProposingBlock(*model.Proposal)

func (*NoopConsumer) OnQcConstructedFromVotes 

func (c *NoopConsumer) OnQcConstructedFromVotes(*flow.QuorumCertificate)

func (*NoopConsumer) OnQcIncorporated 

func (*NoopConsumer) OnQcIncorporated(*flow.QuorumCertificate)

func (*NoopConsumer) OnQcTriggeredViewChange 

func (c *NoopConsumer) OnQcTriggeredViewChange(*flow.QuorumCertificate, uint64)

func (*NoopConsumer) OnReachedTimeout 

func (*NoopConsumer) OnReachedTimeout(*model.TimerInfo)

func (*NoopConsumer) OnReceiveProposal 

func (c *NoopConsumer) OnReceiveProposal(uint64, *model.Proposal)

func (*NoopConsumer) OnReceiveVote 

func (c *NoopConsumer) OnReceiveVote(uint64, *model.Vote)

func (*NoopConsumer) OnStartingTimeout 

func (*NoopConsumer) OnStartingTimeout(*model.TimerInfo)

func (*NoopConsumer) OnVoting 

func (c *NoopConsumer) OnVoting(*model.Vote)

type PathHandler 

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

PathHandler maintains a notion of the current path through the state machine. It allows to close a path and open new path. Each path is identified by a unique (randomly generated) uuid. Along each path, we can capture information about relevant Steps (each step is represented by a Zerolog Event). In case there is no currently open path, the PathHandler still returns a Step, but such steps are logged as telemetry errors.

func NewPathHandler 

func NewPathHandler(log zerolog.Logger, chain flow.ChainID) *PathHandler

NewPathHandler instantiate a new PathHandler. The PathHandler has no currently open path

func (*PathHandler) CloseCurrentPath 

func (p *PathHandler) CloseCurrentPath() *PathHandler

CloseCurrentPath closes the current path. Repeated calls to CloseCurrentPath are handled. All Details hereafter, until a new Path is started, are logged as telemetry Errors. Returns self-reference for chaining

func (*PathHandler) IsCurrentPathClosed 

func (p *PathHandler) IsCurrentPathClosed() bool

IsCurrentPathOpen if and only is the most recently started path has been closed.

func (*PathHandler) NextStep 

func (p *PathHandler) NextStep() *zerolog.Event

NextStep returns a Zerolog event for the currently open path. If the current path is closed, the event will be logged as telemetry error.

func (*PathHandler) StartNextPath 

func (p *PathHandler) StartNextPath(view uint64) *PathHandler

StartNextPath starts a new Path. Implicitly closes previous path if still open. Returns self-reference for chaining

type SlashingViolationsConsumer 

type SlashingViolationsConsumer struct {
	NoopConsumer
	// contains filtered or unexported fields
}

SlashingViolationsConsumer is an implementation of the notifications consumer that logs a message for any slashable offences.

func NewSlashingViolationsConsumer 

func NewSlashingViolationsConsumer(log zerolog.Logger) *SlashingViolationsConsumer

func (*SlashingViolationsConsumer) OnDoubleProposeDetected 

func (c *SlashingViolationsConsumer) OnDoubleProposeDetected(block1 *model.Block, block2 *model.Block)

func (*SlashingViolationsConsumer) OnDoubleVotingDetected 

func (c *SlashingViolationsConsumer) OnDoubleVotingDetected(vote1 *model.Vote, vote2 *model.Vote)

func (*SlashingViolationsConsumer) OnInvalidVoteDetected 

func (c *SlashingViolationsConsumer) OnInvalidVoteDetected(vote *model.Vote)

type TelemetryConsumer 

type TelemetryConsumer struct {
	NoopConsumer
	// contains filtered or unexported fields
}

TelemetryConsumer implements the hotstuff.Consumer interface. consumes outbound notifications produced by the The HotStuff state machine. For this purpose, the TelemetryConsumer enriches the state machine's notifications:

  • the goal is to identify all events as belonging together that were emitted during a path through the state machine.
  • A path through the state machine begins when:
  • a vote is received
  • a block is received
  • a new view is started
  • a timeout is processed
  • Each path through the state machine is identified by a unique id.

Generally, the TelemetryConsumer could export the collected data to a variety of backends. For now, we export the data to a logger.

Telemetry does NOT capture slashing notifications

func NewTelemetryConsumer 

func NewTelemetryConsumer(log zerolog.Logger, chain flow.ChainID) *TelemetryConsumer

func (*TelemetryConsumer) OnBlockIncorporated 

func (t *TelemetryConsumer) OnBlockIncorporated(block *model.Block)

func (*TelemetryConsumer) OnEnteringView 

func (t *TelemetryConsumer) OnEnteringView(viewNumber uint64, leader flow.Identifier)

func (*TelemetryConsumer) OnEventProcessed 

func (t *TelemetryConsumer) OnEventProcessed()

func (*TelemetryConsumer) OnFinalizedBlock 

func (t *TelemetryConsumer) OnFinalizedBlock(block *model.Block)

func (*TelemetryConsumer) OnForkChoiceGenerated 

func (t *TelemetryConsumer) OnForkChoiceGenerated(current_view uint64, qc *flow.QuorumCertificate)

func (*TelemetryConsumer) OnProposingBlock 

func (t *TelemetryConsumer) OnProposingBlock(proposal *model.Proposal)

func (*TelemetryConsumer) OnQcConstructedFromVotes 

func (t *TelemetryConsumer) OnQcConstructedFromVotes(qc *flow.QuorumCertificate)

func (*TelemetryConsumer) OnQcIncorporated 

func (t *TelemetryConsumer) OnQcIncorporated(qc *flow.QuorumCertificate)

func (*TelemetryConsumer) OnQcTriggeredViewChange 

func (t *TelemetryConsumer) OnQcTriggeredViewChange(qc *flow.QuorumCertificate, newView uint64)

func (*TelemetryConsumer) OnReachedTimeout 

func (t *TelemetryConsumer) OnReachedTimeout(info *model.TimerInfo)

func (*TelemetryConsumer) OnReceiveProposal 

func (t *TelemetryConsumer) OnReceiveProposal(currentView uint64, proposal *model.Proposal)

func (*TelemetryConsumer) OnReceiveVote 

func (t *TelemetryConsumer) OnReceiveVote(currentView uint64, vote *model.Vote)

func (*TelemetryConsumer) OnStartingTimeout 

func (t *TelemetryConsumer) OnStartingTimeout(info *model.TimerInfo)

func (*TelemetryConsumer) OnVoting 

func (t *TelemetryConsumer) OnVoting(vote *model.Vote)

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