txs

package
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 Go to latest Published: Jul 4, 2017 License: GPL-3.0 Imports: 16 Imported by: 0

README

tendermint/block

Block

TODO: document

Header
Validation
Data

PartSet

PartSet is used to split a byteslice of data into parts (pieces) for transmission. By splitting data into smaller parts and computing a Merkle root hash on the list, you can verify that a part is legitimately part of the complete data, and the part can be forwarded to other peers before all the parts are known. In short, it's a fast way to propagate a large file over a gossip network.

PartSet was inspired by the LibSwift project.

Usage:

data := RandBytes(2 << 20) // Something large

partSet := NewPartSetFromData(data)
partSet.Total()     // Total number of 4KB parts
partSet.Count()     // Equal to the Total, since we already have all the parts
partSet.Hash()      // The Merkle root hash
partSet.BitArray()  // A BitArray of partSet.Total() 1's

header := partSet.Header() // Send this to the peer
header.Total        // Total number of parts
header.Hash         // The merkle root hash

// Now we'll reconstruct the data from the parts
partSet2 := NewPartSetFromHeader(header)
partSet2.Total()    // Same total as partSet.Total()
partSet2.Count()    // Zero, since this PartSet doesn't have any parts yet.
partSet2.Hash()     // Same hash as in partSet.Hash()
partSet2.BitArray() // A BitArray of partSet.Total() 0's

// In a gossip network the parts would arrive in arbitrary order, perhaps
// in response to explicit requests for parts, or optimistically in response
// to the receiving peer's partSet.BitArray().
for !partSet2.IsComplete() {
    part := receivePartFromGossipNetwork()
    added, err := partSet2.AddPart(part)
    if err != nil {
		// A wrong part,
        // the merkle trail does not hash to partSet2.Hash()
    } else if !added {
        // A duplicate part already received
    }
}

data2, _ := ioutil.ReadAll(partSet2.GetReader())
bytes.Equal(data, data2) // true

Documentation

Index

Constants

View Source 
const (
	EventDataTypeNewBlock       = byte(0x01)
	EventDataTypeFork           = byte(0x02)
	EventDataTypeTx             = byte(0x03)
	EventDataTypeCall           = byte(0x04)
	EventDataTypeLog            = byte(0x05)
	EventDataTypeNewBlockHeader = byte(0x06)

	EventDataTypeRoundState = byte(0x11)
	EventDataTypeVote       = byte(0x12)
)
View Source 
const (
	// Account transactions
	TxTypeSend = byte(0x01)
	TxTypeCall = byte(0x02)
	TxTypeName = byte(0x03)

	// Validation transactions
	TxTypeBond    = byte(0x11)
	TxTypeUnbond  = byte(0x12)
	TxTypeRebond  = byte(0x13)
	TxTypeDupeout = byte(0x14)

	// Admin transactions
	TxTypePermissions = byte(0x20)
)

Types of Tx implementations

Variables

View Source 
var (
	MinNameRegistrationPeriod int = 5

	// cost for storing a name for a block is
	// CostPerBlock*CostPerByte*(len(data) + 32)
	NameByteCostMultiplier  int64 = 1
	NameBlockCostMultiplier int64 = 1

	MaxNameLength = 64
	MaxDataLength = 1 << 16
)
View Source 
var (
	ErrTxInvalidAddress       = errors.New("Error invalid address")
	ErrTxDuplicateAddress     = errors.New("Error duplicate address")
	ErrTxInvalidAmount        = errors.New("Error invalid amount")
	ErrTxInsufficientFunds    = errors.New("Error insufficient funds")
	ErrTxInsufficientGasPrice = errors.New("Error insufficient gas price")
	ErrTxUnknownPubKey        = errors.New("Error unknown pubkey")
	ErrTxInvalidPubKey        = errors.New("Error invalid pubkey")
	ErrTxInvalidSignature     = errors.New("Error invalid signature")
	ErrTxPermissionDenied     = errors.New("Error permission denied")
)

Functions

func EncodeTx 

func EncodeTx(tx Tx) ([]byte, error)

func EventStringAccCall 

func EventStringAccCall(addr []byte) string

func EventStringAccInput 

func EventStringAccInput(addr []byte) string

func EventStringAccOutput 

func EventStringAccOutput(addr []byte) string

func EventStringBond 

func EventStringBond() string

func EventStringCompleteProposal 

func EventStringCompleteProposal() string

func EventStringDupeout 

func EventStringDupeout() string

func EventStringFork 

func EventStringFork() string

func EventStringLock 

func EventStringLock() string

func EventStringLogEvent 

func EventStringLogEvent(addr []byte) string

func EventStringNameReg 

func EventStringNameReg(name string) string

func EventStringNewBlock 

func EventStringNewBlock() string

func EventStringNewRound 

func EventStringNewRound() string

func EventStringPermissions 

func EventStringPermissions(name string) 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 EventStringUnbond 

func EventStringUnbond() string

func EventStringUnlock 

func EventStringUnlock() string

func EventStringVote 

func EventStringVote() string

func NameBaseCost 

func NameBaseCost(name, data string) int64

base cost is "effective" number of bytes

func NameCostPerBlock 

func NameCostPerBlock(baseCost int64) int64

func NewContractAddress 

func NewContractAddress(caller []byte, nonce int) []byte

func TxHash 

func TxHash(chainID string, tx Tx) []byte

Types

type AccountGetter 

type AccountGetter interface {
	GetAccount(addr []byte) *acm.Account
}

type BondTx 

type BondTx struct {
	PubKey    crypto.PubKeyEd25519    `json:"pub_key"` // NOTE: these don't have type byte
	Signature crypto.SignatureEd25519 `json:"signature"`
	Inputs    []*TxInput              `json:"inputs"`
	UnbondTo  []*TxOutput             `json:"unbond_to"`
}

func NewBondTx 

func NewBondTx(pubkey crypto.PubKey) (*BondTx, error)

func (*BondTx) AddInput 

func (tx *BondTx) AddInput(st AccountGetter, pubkey crypto.PubKey, amt int64) error

func (*BondTx) AddInputWithNonce 

func (tx *BondTx) AddInputWithNonce(pubkey crypto.PubKey, amt int64, nonce int) error

func (*BondTx) AddOutput 

func (tx *BondTx) AddOutput(addr []byte, amt int64) error

func (*BondTx) SignBond 

func (tx *BondTx) SignBond(chainID string, privAccount *acm.PrivAccount) error

func (*BondTx) SignInput 

func (tx *BondTx) SignInput(chainID string, i int, privAccount *acm.PrivAccount) error

func (*BondTx) String 

func (tx *BondTx) String() string

func (*BondTx) WriteSignBytes 

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

type CallData 

type CallData struct {
	Caller []byte `json:"caller"`
	Callee []byte `json:"callee"`
	Data   []byte `json:"data"`
	Value  int64  `json:"value"`
	Gas    int64  `json:"gas"`
}

type CallTx 

type CallTx struct {
	Input    *TxInput `json:"input"`
	Address  []byte   `json:"address"`
	GasLimit int64    `json:"gas_limit"`
	Fee      int64    `json:"fee"`
	Data     []byte   `json:"data"`
}

func NewCallTx 

func NewCallTx(st AccountGetter, from crypto.PubKey, to, data []byte, amt, gasLimit, fee int64) (*CallTx, error)

func NewCallTxWithNonce 

func NewCallTxWithNonce(from crypto.PubKey, to, data []byte, amt, gasLimit, fee int64, nonce int) *CallTx

func (*CallTx) Sign 

func (tx *CallTx) Sign(chainID string, privAccount *acm.PrivAccount)

func (*CallTx) String 

func (tx *CallTx) String() string

func (*CallTx) WriteSignBytes 

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

type DupeoutTx 

type DupeoutTx struct {
	Address []byte                `json:"address"`
	VoteA   tendermint_types.Vote `json:"vote_a"`
	VoteB   tendermint_types.Vote `json:"vote_b"`
}

func (*DupeoutTx) String 

func (tx *DupeoutTx) String() string

func (*DupeoutTx) WriteSignBytes 

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

type ErrTxInvalidSequence 

type ErrTxInvalidSequence struct {
	Got      int
	Expected int
}

func (ErrTxInvalidSequence) Error 

func (e ErrTxInvalidSequence) Error() string

type ErrTxInvalidString 

type ErrTxInvalidString struct {
	Msg string
}

func (ErrTxInvalidString) Error 

func (e ErrTxInvalidString) Error() string

type EventData 

type EventData interface {
	AssertIsEventData()
}

type EventDataCall 

type EventDataCall struct {
	CallData  *CallData `json:"call_data"`
	Origin    []byte    `json:"origin"`
	TxID      []byte    `json:"tx_id"`
	Return    []byte    `json:"return"`
	Exception string    `json:"exception"`
}

EventDataCall fires when we call a contract, and when a contract calls another contract

func (EventDataCall) AssertIsEventData 

func (_ EventDataCall) AssertIsEventData()

type EventDataLog 

type EventDataLog struct {
	Address Word256   `json:"address"`
	Topics  []Word256 `json:"topics"`
	Data    []byte    `json:"data"`
	Height  int64     `json:"height"`
}

EventDataLog fires when a contract executes the LOG opcode

func (EventDataLog) AssertIsEventData 

func (_ EventDataLog) AssertIsEventData()

type EventDataNewBlock 

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

func (EventDataNewBlock) AssertIsEventData 

func (_ EventDataNewBlock) AssertIsEventData()

type EventDataNewBlockHeader 

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

func (EventDataNewBlockHeader) AssertIsEventData 

func (_ EventDataNewBlockHeader) AssertIsEventData()

type EventDataRoundState 

type EventDataRoundState struct {
	CurrentTime time.Time `json:"current_time"`

	Height        int                `json:"height"`
	Round         int                `json:"round"`
	Step          string             `json:"step"`
	StartTime     time.Time          `json:"start_time"`
	CommitTime    time.Time          `json:"commit_time"`
	Proposal      *tm_types.Proposal `json:"proposal"`
	ProposalBlock *tm_types.Block    `json:"proposal_block"`
	LockedRound   int                `json:"locked_round"`
	LockedBlock   *tm_types.Block    `json:"locked_block"`
	POLRound      int                `json:"pol_round"`
}

We fire the most recent round state that led to the event (ie. NewRound will have the previous rounds state)

func (EventDataRoundState) AssertIsEventData 

func (_ EventDataRoundState) AssertIsEventData()

type EventDataTx 

type EventDataTx struct {
	Tx        Tx     `json:"tx"`
	Return    []byte `json:"return"`
	Exception string `json:"exception"`
}

All txs fire EventDataTx, but only CallTx might have Return or Exception

func (EventDataTx) AssertIsEventData 

func (_ EventDataTx) AssertIsEventData()

type EventDataVote 

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

func (EventDataVote) AssertIsEventData 

func (_ EventDataVote) AssertIsEventData()

type NameTx 

type NameTx struct {
	Input *TxInput `json:"input"`
	Name  string   `json:"name"`
	Data  string   `json:"data"`
	Fee   int64    `json:"fee"`
}

func NewNameTx 

func NewNameTx(st AccountGetter, from crypto.PubKey, name, data string, amt, fee int64) (*NameTx, error)

func NewNameTxWithNonce 

func NewNameTxWithNonce(from crypto.PubKey, name, data string, amt, fee int64, nonce int) *NameTx

func (*NameTx) Sign 

func (tx *NameTx) Sign(chainID string, privAccount *acm.PrivAccount)

func (*NameTx) String 

func (tx *NameTx) String() string

func (*NameTx) ValidateStrings 

func (tx *NameTx) ValidateStrings() error

func (*NameTx) WriteSignBytes 

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

type PermissionsTx 

type PermissionsTx struct {
	Input    *TxInput        `json:"input"`
	PermArgs ptypes.PermArgs `json:"args"`
}

func NewPermissionsTx 

func NewPermissionsTx(st AccountGetter, from crypto.PubKey, args ptypes.PermArgs) (*PermissionsTx, error)

func NewPermissionsTxWithNonce 

func NewPermissionsTxWithNonce(from crypto.PubKey, args ptypes.PermArgs, nonce int) *PermissionsTx

func (*PermissionsTx) Sign 

func (tx *PermissionsTx) Sign(chainID string, privAccount *acm.PrivAccount)

func (*PermissionsTx) String 

func (tx *PermissionsTx) String() string

func (*PermissionsTx) WriteSignBytes 

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

type RebondTx 

type RebondTx struct {
	Address   []byte                  `json:"address"`
	Height    int                     `json:"height"`
	Signature crypto.SignatureEd25519 `json:"signature"`
}

func NewRebondTx 

func NewRebondTx(addr []byte, height int) *RebondTx

func (*RebondTx) Sign 

func (tx *RebondTx) Sign(chainID string, privAccount *acm.PrivAccount)

func (*RebondTx) String 

func (tx *RebondTx) String() string

func (*RebondTx) WriteSignBytes 

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

type Receipt 

type Receipt struct {
	TxHash          []byte `json:"tx_hash"`
	CreatesContract uint8  `json:"creates_contract"`
	ContractAddr    []byte `json:"contract_addr"`
}

BroadcastTx or Transact

func GenerateReceipt 

func GenerateReceipt(chainId string, tx Tx) Receipt

type ResultListNames 

type ResultListNames struct {
	BlockHeight int                        `json:"block_height"`
	Names       []*core_types.NameRegEntry `json:"names"`
}

XXX: vestige of an older time

type SendTx 

type SendTx struct {
	Inputs  []*TxInput  `json:"inputs"`
	Outputs []*TxOutput `json:"outputs"`
}

func NewSendTx 

func NewSendTx() *SendTx

func (*SendTx) AddInput 

func (tx *SendTx) AddInput(st AccountGetter, pubkey crypto.PubKey, amt int64) error

func (*SendTx) AddInputWithNonce 

func (tx *SendTx) AddInputWithNonce(pubkey crypto.PubKey, amt int64, nonce int) error

func (*SendTx) AddOutput 

func (tx *SendTx) AddOutput(addr []byte, amt int64) error

func (*SendTx) SignInput 

func (tx *SendTx) SignInput(chainID string, i int, privAccount *acm.PrivAccount) error

func (*SendTx) String 

func (tx *SendTx) String() string

func (*SendTx) WriteSignBytes 

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

type Tx 

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

func DecodeTx 

func DecodeTx(txBytes []byte) (Tx, error)

panic on err

type TxInput 

type TxInput struct {
	Address   []byte           `json:"address"`   // Hash of the PubKey
	Amount    int64            `json:"amount"`    // Must not exceed account balance
	Sequence  int              `json:"sequence"`  // Must be 1 greater than the last committed TxInput
	Signature crypto.Signature `json:"signature"` // Depends on the PubKey type and the whole Tx
	PubKey    crypto.PubKey    `json:"pub_key"`   // Must not be nil, may be nil
}

func (*TxInput) String 

func (txIn *TxInput) String() string

func (*TxInput) ValidateBasic 

func (txIn *TxInput) ValidateBasic() error

func (*TxInput) WriteSignBytes 

func (txIn *TxInput) WriteSignBytes(w io.Writer, n *int, err *error)

type TxOutput 

type TxOutput struct {
	Address []byte `json:"address"` // Hash of the PubKey
	Amount  int64  `json:"amount"`  // The sum of all outputs must not exceed the inputs.
}

func (*TxOutput) String 

func (txOut *TxOutput) String() string

func (*TxOutput) ValidateBasic 

func (txOut *TxOutput) ValidateBasic() error

func (*TxOutput) WriteSignBytes 

func (txOut *TxOutput) WriteSignBytes(w io.Writer, n *int, err *error)

type UnbondTx 

type UnbondTx struct {
	Address   []byte                  `json:"address"`
	Height    int                     `json:"height"`
	Signature crypto.SignatureEd25519 `json:"signature"`
}

func NewUnbondTx 

func NewUnbondTx(addr []byte, height int) *UnbondTx

func (*UnbondTx) Sign 

func (tx *UnbondTx) Sign(chainID string, privAccount *acm.PrivAccount)

func (*UnbondTx) String 

func (tx *UnbondTx) String() string

func (*UnbondTx) WriteSignBytes 

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

type UnconfirmedTxs 

type UnconfirmedTxs struct {
	Txs []Tx `json:"txs"`
}

UnconfirmedTxs

Source Files

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