types

package
v0.7.1 Latest Latest
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 Go to latest Published: Sep 11, 2016 License: Apache-2.0 Imports: 18 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	EventDataTypeNewBlock       = byte(0x01)
	EventDataTypeFork           = byte(0x02)
	EventDataTypeTx             = byte(0x03)
	EventDataTypeNewBlockHeader = byte(0x04)

	EventDataTypeRoundState = byte(0x11)
	EventDataTypeVote       = byte(0x12)
)
View Source 
const (
	VoteTypePrevote   = byte(0x01)
	VoteTypePrecommit = byte(0x02)
)

Types of votes

View Source 
const MaxBlockSize = 22020096 // 21MB TODO make it configurable

Variables

View Source 
var (
	PeerStateKey     = "ConsensusReactor.peerState"
	PeerMempoolChKey = "MempoolReactor.peerMempoolCh"
)
View Source 
var (
	ErrPartSetUnexpectedIndex = errors.New("Error part set unexpected index")
	ErrPartSetInvalidProof    = errors.New("Error part set invalid proof")
)
View Source 
var (
	ErrInvalidBlockPartSignature = errors.New("Error invalid block part signature")
	ErrInvalidBlockPartHash      = errors.New("Error invalid block part hash")
)
View Source 
var (
	ErrVoteUnexpectedStep   = errors.New("Unexpected step")
	ErrVoteInvalidAccount   = errors.New("Invalid round vote account")
	ErrVoteInvalidSignature = errors.New("Invalid round vote signature")
	ErrVoteInvalidBlockHash = errors.New("Invalid block hash")
)
View Source 
var GenDocKey = []byte("GenDocKey")
View Source 
var ValidatorCodec = validatorCodec{}

Functions

func EventStringBond 

func EventStringBond() string

Reserved

func EventStringCompleteProposal 

func EventStringCompleteProposal() string

func EventStringDupeout 

func EventStringDupeout() string

func EventStringFork 

func EventStringFork() string

func EventStringLock 

func EventStringLock() string

func EventStringNewBlock 

func EventStringNewBlock() string

func EventStringNewBlockHeader 

func EventStringNewBlockHeader() string

func EventStringNewRound 

func EventStringNewRound() string

func EventStringNewRoundStep 

func EventStringNewRoundStep() string

func EventStringPolka 

func EventStringPolka() string

func EventStringRebond 

func EventStringRebond() string

func EventStringRelock 

func EventStringRelock() string

func EventStringTimeoutPropose 

func EventStringTimeoutPropose() string

func EventStringTimeoutWait 

func EventStringTimeoutWait() string

func EventStringTx 

func EventStringTx(tx Tx) string

func EventStringUnbond 

func EventStringUnbond() string

func EventStringUnlock 

func EventStringUnlock() string

func EventStringVote 

func EventStringVote() string

func HashSignBytes 

func HashSignBytes(chainID string, o Signable) []byte

HashSignBytes is a convenience method for getting the hash of the bytes of a signable

func RandValidator 

func RandValidator(randPower bool, minPower int64) (*Validator, *PrivValidator)

func RandValidatorSet 

func RandValidatorSet(numValidators int, votingPower int64) (*ValidatorSet, []*PrivValidator)

func SignBytes 

func SignBytes(chainID string, o Signable) []byte

SignBytes is a convenience method for getting the bytes to sign of a Signable.

Types

type Block 

type Block struct {
	*Header    `json:"header"`
	*Data      `json:"data"`
	LastCommit *Commit `json:"last_commit"`
}

func (*Block) FillHeader 

func (b *Block) FillHeader()

func (*Block) Hash 

func (b *Block) Hash() []byte

Computes and returns the block hash. If the block is incomplete, block hash is nil for safety.

func (*Block) HashesTo 

func (b *Block) HashesTo(hash []byte) bool

Convenience. A nil block never hashes to anything. Nothing hashes to a nil hash.

func (*Block) MakePartSet 

func (b *Block) MakePartSet() *PartSet

func (*Block) String 

func (b *Block) String() string

func (*Block) StringIndented 

func (b *Block) StringIndented(indent string) string

func (*Block) StringShort 

func (b *Block) StringShort() string

func (*Block) ValidateBasic 

func (b *Block) ValidateBasic(chainID string, lastBlockHeight int, lastBlockHash []byte,
	lastBlockParts PartSetHeader, lastBlockTime time.Time, appHash []byte) error

Basic validation that doesn't involve state data.

type BlockMeta 

type BlockMeta struct {
	Hash        []byte        `json:"hash"`         // The block hash
	Header      *Header       `json:"header"`       // The block's Header
	PartsHeader PartSetHeader `json:"parts_header"` // The PartSetHeader, for transfer
}

func NewBlockMeta 

func NewBlockMeta(block *Block, blockParts *PartSet) *BlockMeta

type Commit 

type Commit struct {
	// NOTE: The Precommits are in order of address to preserve the bonded ValidatorSet order.
	// Any peer with a block can gossip precommits by index with a peer without recalculating the
	// active ValidatorSet.
	Precommits []*Vote `json:"precommits"`
	// contains filtered or unexported fields
}

NOTE: Commit is empty for height 1, but never nil.

func (*Commit) BitArray 

func (commit *Commit) BitArray() *BitArray

func (*Commit) FirstPrecommit 

func (commit *Commit) FirstPrecommit() *Vote

func (*Commit) GetByIndex 

func (commit *Commit) GetByIndex(index int) *Vote

func (*Commit) Hash 

func (commit *Commit) Hash() []byte

func (*Commit) Height 

func (commit *Commit) Height() int

func (*Commit) IsCommit 

func (commit *Commit) IsCommit() bool

func (*Commit) Round 

func (commit *Commit) Round() int

func (*Commit) Size 

func (commit *Commit) Size() int

func (*Commit) StringIndented 

func (commit *Commit) StringIndented(indent string) string

func (*Commit) Type 

func (commit *Commit) Type() byte

func (*Commit) ValidateBasic 

func (commit *Commit) ValidateBasic() error

type Data 

type Data struct {

	// Txs that will be applied by state @ block.Height+1.
	// NOTE: not all txs here are valid.  We're just agreeing on the order first.
	// This means that block.AppHash does not include these txs.
	Txs Txs `json:"txs"`
	// contains filtered or unexported fields
}

func (*Data) Hash 

func (data *Data) Hash() []byte

func (*Data) StringIndented 

func (data *Data) StringIndented(indent string) string

type DefaultSigner 

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

Implements Signer

func NewDefaultSigner 

func NewDefaultSigner(priv crypto.PrivKey) *DefaultSigner

func (*DefaultSigner) Sign 

func (ds *DefaultSigner) Sign(msg []byte) crypto.Signature

Implements Signer

type ErrVoteConflictingSignature 

type ErrVoteConflictingSignature struct {
	VoteA *Vote
	VoteB *Vote
}

func (*ErrVoteConflictingSignature) Error 

func (err *ErrVoteConflictingSignature) Error() string

type EventDataNewBlock 

type EventDataNewBlock struct {
	Block *Block `json:"block"`
}

func (EventDataNewBlock) AssertIsTMEventData 

func (_ EventDataNewBlock) AssertIsTMEventData()

type EventDataNewBlockHeader 

type EventDataNewBlockHeader struct {
	Header *Header `json:"header"`
}

light weight event for benchmarking

func (EventDataNewBlockHeader) AssertIsTMEventData 

func (_ EventDataNewBlockHeader) AssertIsTMEventData()

type EventDataRoundState 

type EventDataRoundState struct {
	Height int    `json:"height"`
	Round  int    `json:"round"`
	Step   string `json:"step"`

	// private, not exposed to websockets
	RoundState interface{} `json:"-"`
}

NOTE: This goes into the replay WAL

func (EventDataRoundState) AssertIsTMEventData 

func (_ EventDataRoundState) AssertIsTMEventData()

type EventDataTx 

type EventDataTx struct {
	Tx     Tx     `json:"tx"`
	Result []byte `json:"result"`
	Log    string `json:"log"`
	Error  string `json:"error"`
}

All txs fire EventDataTx

func (EventDataTx) AssertIsTMEventData 

func (_ EventDataTx) AssertIsTMEventData()

type EventDataVote 

type EventDataVote struct {
	Index   int
	Address []byte
	Vote    *Vote
}

func (EventDataVote) AssertIsTMEventData 

func (_ EventDataVote) AssertIsTMEventData()

type GenesisDoc 

type GenesisDoc struct {
	GenesisTime time.Time          `json:"genesis_time"`
	ChainID     string             `json:"chain_id"`
	Validators  []GenesisValidator `json:"validators"`
	AppHash     []byte             `json:"app_hash"`
}

func GenesisDocFromJSON 

func GenesisDocFromJSON(jsonBlob []byte) (genState *GenesisDoc)

func (*GenesisDoc) SaveAs 

func (genDoc *GenesisDoc) SaveAs(file string) error

Utility method for saving GenensisDoc as JSON file.

type GenesisValidator 

type GenesisValidator struct {
	PubKey crypto.PubKey `json:"pub_key"`
	Amount int64         `json:"amount"`
	Name   string        `json:"name"`
}
type Header struct {
	ChainID        string        `json:"chain_id"`
	Height         int           `json:"height"`
	Time           time.Time     `json:"time"`
	NumTxs         int           `json:"num_txs"`
	LastBlockHash  []byte        `json:"last_block_hash"`
	LastBlockParts PartSetHeader `json:"last_block_parts"`
	LastCommitHash []byte        `json:"last_commit_hash"`
	DataHash       []byte        `json:"data_hash"`
	ValidatorsHash []byte        `json:"validators_hash"`
	AppHash        []byte        `json:"app_hash"` // state merkle root of txs from the previous block
}

func (*Header) Hash 

func (h *Header) Hash() []byte

NOTE: hash is nil if required fields are missing.

func (*Header) StringIndented 

func (h *Header) StringIndented(indent string) string

type Part 

type Part struct {
	Index int                `json:"index"`
	Bytes []byte             `json:"bytes"`
	Proof merkle.SimpleProof `json:"proof"`
	// contains filtered or unexported fields
}

func (*Part) Hash 

func (part *Part) Hash() []byte

func (*Part) String 

func (part *Part) String() string

func (*Part) StringIndented 

func (part *Part) StringIndented(indent string) string

type PartSet 

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

func NewPartSetFromData 

func NewPartSetFromData(data []byte) *PartSet

Returns an immutable, full PartSet from the data bytes. The data bytes are split into "partSize" chunks, and merkle tree computed.

func NewPartSetFromHeader 

func NewPartSetFromHeader(header PartSetHeader) *PartSet

Returns an empty PartSet ready to be populated.

func (*PartSet) AddPart 

func (ps *PartSet) AddPart(part *Part, verify bool) (bool, error)

func (*PartSet) BitArray 

func (ps *PartSet) BitArray() *BitArray

func (*PartSet) Count 

func (ps *PartSet) Count() int

func (*PartSet) GetPart 

func (ps *PartSet) GetPart(index int) *Part

func (*PartSet) GetReader 

func (ps *PartSet) GetReader() io.Reader

func (*PartSet) HasHeader 

func (ps *PartSet) HasHeader(header PartSetHeader) bool

func (*PartSet) Hash 

func (ps *PartSet) Hash() []byte

func (*PartSet) HashesTo 

func (ps *PartSet) HashesTo(hash []byte) bool

func (*PartSet) Header 

func (ps *PartSet) Header() PartSetHeader

func (*PartSet) IsComplete 

func (ps *PartSet) IsComplete() bool

func (*PartSet) StringShort 

func (ps *PartSet) StringShort() string

func (*PartSet) Total 

func (ps *PartSet) Total() int

type PartSetHeader 

type PartSetHeader struct {
	Total int    `json:"total"`
	Hash  []byte `json:"hash"`
}

func (PartSetHeader) Equals 

func (psh PartSetHeader) Equals(other PartSetHeader) bool

func (PartSetHeader) IsZero 

func (psh PartSetHeader) IsZero() bool

func (PartSetHeader) String 

func (psh PartSetHeader) String() string

func (PartSetHeader) WriteSignBytes 

func (psh PartSetHeader) WriteSignBytes(w io.Writer, n *int, err *error)

type PartSetReader 

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

func NewPartSetReader 

func NewPartSetReader(parts []*Part) *PartSetReader

func (*PartSetReader) Read 

func (psr *PartSetReader) Read(p []byte) (n int, err error)

type PrivValidator 

type PrivValidator struct {
	Address       []byte           `json:"address"`
	PubKey        crypto.PubKey    `json:"pub_key"`
	LastHeight    int              `json:"last_height"`
	LastRound     int              `json:"last_round"`
	LastStep      int8             `json:"last_step"`
	LastSignature crypto.Signature `json:"last_signature"` // so we dont lose signatures
	LastSignBytes []byte           `json:"last_signbytes"` // so we dont lose signatures

	// PrivKey should be empty if a Signer other than the default is being used.
	PrivKey crypto.PrivKey `json:"priv_key"`
	Signer  `json:"-"`
	// contains filtered or unexported fields
}

func GenPrivValidator 

func GenPrivValidator() *PrivValidator

Generates a new validator with private key.

func LoadOrGenPrivValidator 

func LoadOrGenPrivValidator(filePath string) *PrivValidator

func LoadPrivValidator 

func LoadPrivValidator(filePath string) *PrivValidator

func (*PrivValidator) Reset added in v0.7.1 

func (privVal *PrivValidator) Reset()

NOTE: Unsafe!

func (*PrivValidator) Save 

func (privVal *PrivValidator) Save()

func (*PrivValidator) SetFile 

func (privVal *PrivValidator) SetFile(filePath string)

func (*PrivValidator) SetSigner 

func (privVal *PrivValidator) SetSigner(s Signer)

func (*PrivValidator) SignProposal 

func (privVal *PrivValidator) SignProposal(chainID string, proposal *Proposal) error

func (*PrivValidator) SignVote 

func (privVal *PrivValidator) SignVote(chainID string, vote *Vote) error

func (*PrivValidator) String 

func (privVal *PrivValidator) String() string

type PrivValidatorsByAddress 

type PrivValidatorsByAddress []*PrivValidator

func (PrivValidatorsByAddress) Len 

func (pvs PrivValidatorsByAddress) Len() int

func (PrivValidatorsByAddress) Less 

func (pvs PrivValidatorsByAddress) Less(i, j int) bool

func (PrivValidatorsByAddress) Swap 

func (pvs PrivValidatorsByAddress) Swap(i, j int)

type Proposal 

type Proposal struct {
	Height           int                     `json:"height"`
	Round            int                     `json:"round"`
	BlockPartsHeader PartSetHeader           `json:"block_parts_header"`
	POLRound         int                     `json:"pol_round"` // -1 if null.
	Signature        crypto.SignatureEd25519 `json:"signature"`
}

func NewProposal 

func NewProposal(height int, round int, blockPartsHeader PartSetHeader, polRound int) *Proposal

polRound: -1 if no polRound.

func (*Proposal) String 

func (p *Proposal) String() string

func (*Proposal) WriteSignBytes 

func (p *Proposal) WriteSignBytes(chainID string, w io.Writer, n *int, err *error)

type Signable 

type Signable interface {
	WriteSignBytes(chainID string, w io.Writer, n *int, err *error)
}

Signable is an interface for all signable things. It typically removes signatures before serializing.

type Signer 

type Signer interface {
	Sign(msg []byte) crypto.Signature
}

This is used to sign votes. It is the caller's duty to verify the msg before calling Sign, eg. to avoid double signing. Currently, the only callers are SignVote and SignProposal

type TMEventData 

type TMEventData interface {
	events.EventData
}

implements events.EventData

type Tx 

type Tx []byte

func (Tx) Hash 

func (tx Tx) Hash() []byte

NOTE: this is the hash of the go-wire encoded Tx. Tx has no types at this level, so just length-prefixed. Alternatively, it may make sense to add types here and let []byte be type 0x1 so we can have versioned txs if need be in the future.

type Txs 

type Txs []Tx

func (Txs) Hash 

func (txs Txs) Hash() []byte

type Validator 

type Validator struct {
	Address          []byte        `json:"address"`
	PubKey           crypto.PubKey `json:"pub_key"`
	LastCommitHeight int           `json:"last_commit_height"`
	VotingPower      int64         `json:"voting_power"`
	Accum            int64         `json:"accum"`
}

Volatile state for each Validator Also persisted with the state, but fields change every height|round so they don't go in merkle.Tree

func (*Validator) CompareAccum 

func (v *Validator) CompareAccum(other *Validator) *Validator

Returns the one with higher Accum.

func (*Validator) Copy 

func (v *Validator) Copy() *Validator

Creates a new copy of the validator so we can mutate accum. Panics if the validator is nil.

func (*Validator) Hash 

func (v *Validator) Hash() []byte

func (*Validator) String 

func (v *Validator) String() string

type ValidatorSet 

type ValidatorSet struct {
	Validators []*Validator // NOTE: persisted via reflect, must be exported.
	// contains filtered or unexported fields
}

ValidatorSet represent a set of *Validator at a given height. The validators can be fetched by address or index. The index is in order of .Address, so the indices are fixed for all rounds of a given blockchain height. On the other hand, the .AccumPower of each validator and the designated .Proposer() of a set changes every round, upon calling .IncrementAccum(). NOTE: Not goroutine-safe. NOTE: All get/set to validators should copy the value for safety. TODO: consider validator Accum overflow TODO: replace validators []*Validator with github.com/jaekwon/go-ibbs?

func NewValidatorSet 

func NewValidatorSet(vals []*Validator) *ValidatorSet

func (*ValidatorSet) Add 

func (valSet *ValidatorSet) Add(val *Validator) (added bool)

func (*ValidatorSet) Copy 

func (valSet *ValidatorSet) Copy() *ValidatorSet

func (*ValidatorSet) GetByAddress 

func (valSet *ValidatorSet) GetByAddress(address []byte) (index int, val *Validator)

func (*ValidatorSet) GetByIndex 

func (valSet *ValidatorSet) GetByIndex(index int) (address []byte, val *Validator)

func (*ValidatorSet) HasAddress 

func (valSet *ValidatorSet) HasAddress(address []byte) bool

func (*ValidatorSet) Hash 

func (valSet *ValidatorSet) Hash() []byte

func (*ValidatorSet) IncrementAccum 

func (valSet *ValidatorSet) IncrementAccum(times int)

TODO: mind the overflow when times and votingPower shares too large.

func (*ValidatorSet) Iterate 

func (valSet *ValidatorSet) Iterate(fn func(index int, val *Validator) bool)

func (*ValidatorSet) Proposer 

func (valSet *ValidatorSet) Proposer() (proposer *Validator)

func (*ValidatorSet) Remove 

func (valSet *ValidatorSet) Remove(address []byte) (val *Validator, removed bool)

func (*ValidatorSet) Size 

func (valSet *ValidatorSet) Size() int

func (*ValidatorSet) String 

func (valSet *ValidatorSet) String() string

func (*ValidatorSet) StringIndented 

func (valSet *ValidatorSet) StringIndented(indent string) string

func (*ValidatorSet) TotalVotingPower 

func (valSet *ValidatorSet) TotalVotingPower() int64

func (*ValidatorSet) Update 

func (valSet *ValidatorSet) Update(val *Validator) (updated bool)

func (*ValidatorSet) VerifyCommit 

func (valSet *ValidatorSet) VerifyCommit(chainID string,
	hash []byte, parts PartSetHeader, height int, commit *Commit) error

Verify that +2/3 of the set had signed the given signBytes

type ValidatorsByAddress 

type ValidatorsByAddress []*Validator

func (ValidatorsByAddress) Len 

func (vs ValidatorsByAddress) Len() int

func (ValidatorsByAddress) Less 

func (vs ValidatorsByAddress) Less(i, j int) bool

func (ValidatorsByAddress) Swap 

func (vs ValidatorsByAddress) Swap(i, j int)

type Vote 

type Vote struct {
	Height           int                     `json:"height"`
	Round            int                     `json:"round"`
	Type             byte                    `json:"type"`
	BlockHash        []byte                  `json:"block_hash"`         // empty if vote is nil.
	BlockPartsHeader PartSetHeader           `json:"block_parts_header"` // zero if vote is nil.
	Signature        crypto.SignatureEd25519 `json:"signature"`
}

Represents a prevote, precommit, or commit vote from validators for consensus.

func (*Vote) Copy 

func (vote *Vote) Copy() *Vote

func (*Vote) String 

func (vote *Vote) String() string

func (*Vote) WriteSignBytes 

func (vote *Vote) WriteSignBytes(chainID string, w io.Writer, n *int, err *error)

type VoteSet 

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

VoteSet helps collect signatures from validators at each height+round for a predefined vote type. Note that there three kinds of votes: prevotes, precommits, and commits. A commit of prior rounds can be added added in lieu of votes/precommits. NOTE: Assumes that the sum total of voting power does not exceed MaxUInt64.

func NewVoteSet 

func NewVoteSet(chainID string, height int, round int, type_ byte, valSet *ValidatorSet) *VoteSet

Constructs a new VoteSet struct used to accumulate votes for given height/round.

func (*VoteSet) AddByAddress 

func (voteSet *VoteSet) AddByAddress(address []byte, vote *Vote) (added bool, index int, err error)

Returns added=true, index if vote was added Otherwise returns err=ErrVote[UnexpectedStep|InvalidAccount|InvalidSignature|InvalidBlockHash|ConflictingSignature] Duplicate votes return added=false, err=nil. NOTE: vote should not be mutated after adding.

func (*VoteSet) AddByIndex 

func (voteSet *VoteSet) AddByIndex(valIndex int, vote *Vote) (added bool, address []byte, err error)

Returns added=true, index if vote was added Otherwise returns err=ErrVote[UnexpectedStep|InvalidAccount|InvalidSignature|InvalidBlockHash|ConflictingSignature] Duplicate votes return added=false, err=nil. NOTE: vote should not be mutated after adding.

func (*VoteSet) BitArray 

func (voteSet *VoteSet) BitArray() *BitArray

func (*VoteSet) ChainID 

func (voteSet *VoteSet) ChainID() string

func (*VoteSet) GetByAddress 

func (voteSet *VoteSet) GetByAddress(address []byte) *Vote

func (*VoteSet) GetByIndex 

func (voteSet *VoteSet) GetByIndex(valIndex int) *Vote

func (*VoteSet) HasTwoThirdsAny 

func (voteSet *VoteSet) HasTwoThirdsAny() bool

func (*VoteSet) HasTwoThirdsMajority 

func (voteSet *VoteSet) HasTwoThirdsMajority() bool

func (*VoteSet) Height 

func (voteSet *VoteSet) Height() int

func (*VoteSet) IsCommit 

func (voteSet *VoteSet) IsCommit() bool

func (*VoteSet) MakeCommit 

func (voteSet *VoteSet) MakeCommit() *Commit

func (*VoteSet) Round 

func (voteSet *VoteSet) Round() int

func (*VoteSet) Size 

func (voteSet *VoteSet) Size() int

func (*VoteSet) String 

func (voteSet *VoteSet) String() string

func (*VoteSet) StringIndented 

func (voteSet *VoteSet) StringIndented(indent string) string

func (*VoteSet) StringShort 

func (voteSet *VoteSet) StringShort() string

func (*VoteSet) TwoThirdsMajority 

func (voteSet *VoteSet) TwoThirdsMajority() (hash []byte, parts PartSetHeader, ok bool)

Returns either a blockhash (or nil) that received +2/3 majority. If there exists no such majority, returns (nil, false).

func (*VoteSet) Type 

func (voteSet *VoteSet) Type() byte

type VoteSetReader 

type VoteSetReader interface {
	Height() int
	Round() int
	Type() byte
	Size() int
	BitArray() *BitArray
	GetByIndex(int) *Vote
	IsCommit() bool
}

---------------------------------------- Common interface between *consensus.VoteSet and types.Commit

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