Documentation

Index

Constants

View Source
const (
	// expected address length
	AddrLen = 20

	// Bech32 prefixes
	Bech32PrefixAccAddr = "cosmosaccaddr"
	Bech32PrefixAccPub  = "cosmosaccpub"
	Bech32PrefixValAddr = "cosmosvaladdr"
	Bech32PrefixValPub  = "cosmosvalpub"
)

Bech32 prefixes

View Source
const (
	// ABCI error codes
	ABCICodeOK ABCICodeType = 0

	// Base error codes
	CodeOK                CodeType = 0
	CodeInternal          CodeType = 1
	CodeTxDecode          CodeType = 2
	CodeInvalidSequence   CodeType = 3
	CodeUnauthorized      CodeType = 4
	CodeInsufficientFunds CodeType = 5
	CodeUnknownRequest    CodeType = 6
	CodeInvalidAddress    CodeType = 7
	CodeInvalidPubKey     CodeType = 8
	CodeUnknownAddress    CodeType = 9
	CodeInsufficientCoins CodeType = 10
	CodeInvalidCoins      CodeType = 11
	CodeOutOfGas          CodeType = 12
	CodeMemoTooLarge      CodeType = 13

	// CodespaceRoot is a codespace for error codes in this file only.
	// Notice that 0 is an "unset" codespace, which can be overridden with
	// Error.WithDefaultCodespace().
	CodespaceUndefined CodespaceType = 0
	CodespaceRoot      CodespaceType = 1

	// Maximum reservable codespace (2^16 - 1)
	MaximumCodespace CodespaceType = 65535
)

SDK error codes

Variables

View Source
var (
	TagAction       = "action"
	TagSrcValidator = "source-validator"
	TagDstValidator = "destination-validator"
	TagDelegator    = "delegator"
)

common tags

Functions

func ABCIValidator

func ABCIValidator(v Validator) abci.Validator

validator which fulfills abci validator interface for use in Tendermint

func Bech32ifyAccPub

func Bech32ifyAccPub(pub crypto.PubKey) (string, error)

Bech32ifyAccPub takes AccountPubKey and returns the bech32 encoded string

func Bech32ifyValPub

func Bech32ifyValPub(pub crypto.PubKey) (string, error)

Bech32ifyValPub returns the bech32 encoded string for a validator pubkey

func BondStatusToString

func BondStatusToString(b BondStatus) string

BondStatusToString for pretty prints of Bond Status

func CodeToDefaultMsg

func CodeToDefaultMsg(code CodeType) string

NOTE: Don't stringer this, we'll put better messages in later. nolint: gocyclo

func GetAccPubKeyBech32

func GetAccPubKeyBech32(address string) (pk crypto.PubKey, err error)

create a Pubkey from a string

func GetFromBech32

func GetFromBech32(bech32str, prefix string) ([]byte, error)

decode a bytestring from a bech32-encoded string

func GetValPubKeyBech32

func GetValPubKeyBech32(pubkey string) (pk crypto.PubKey, err error)

decode a validator public key into a PubKey

func MustBech32ifyAccPub

func MustBech32ifyAccPub(pub crypto.PubKey) string

MustBech32ifyAccPub panics on bech32-encoding failure

func MustBech32ifyValPub

func MustBech32ifyValPub(pub crypto.PubKey) string

MustBech32ifyValPub panics on bech32-encoding failure

func MustGetAccPubKeyBech32

func MustGetAccPubKeyBech32(address string) (pk crypto.PubKey)

create an Pubkey from a string, panics on error

func MustGetValPubKeyBech32

func MustGetValPubKeyBech32(address string) (pk crypto.PubKey)

create an Pubkey from a string, panics on error

func MustSortJSON

func MustSortJSON(toSortJSON []byte) []byte

MustSortJSON is like SortJSON but panic if an error occurs, e.g., if the passed JSON isn't valid.

func NewRatFromDecimal

func NewRatFromDecimal(decimalStr string, prec int) (f Rat, err Error)

create a rational from decimal string or integer string precision is the number of values after the decimal point which should be read

func PrefixEndBytes

func PrefixEndBytes(prefix []byte) []byte

PrefixEndBytes returns the []byte that would end a range query for all []byte with a certain prefix Deals with last byte of prefix being FF without overflowing

func RatEq

func RatEq(t *testing.T, exp, got Rat) (*testing.T, bool, string, Rat, Rat)

intended to be used with require/assert: require.True(RatEq(...))

func RatsEqual

func RatsEqual(r1s, r2s []Rat) bool

test if two rat arrays are the equal

func RegisterWire

func RegisterWire(cdc *wire.Codec)

Register the sdk message type

func SortJSON

func SortJSON(toSortJSON []byte) ([]byte, error)

SortedJSON takes any JSON and returns it sorted by keys. Also, all white-spaces are removed. This method can be used to canonicalize JSON to be returned by GetSignBytes, e.g. for the ledger integration. If the passed JSON isn't valid it will return an error.

Types

type ABCICodeType

type ABCICodeType uint32

ABCICodeType - combined codetype / codespace

func ToABCICode

func ToABCICode(space CodespaceType, code CodeType) ABCICodeType

get the abci code from the local code and codespace

func (ABCICodeType) IsOK

func (code ABCICodeType) IsOK() bool

IsOK - is everything okay?

type AccAddress

type AccAddress []byte

AccAddress a wrapper around bytes meant to represent an account address When marshaled to a string or json, it uses bech32

func AccAddressFromBech32

func AccAddressFromBech32(address string) (addr AccAddress, err error)

create an AccAddress from a bech32 string

func AccAddressFromHex

func AccAddressFromHex(address string) (addr AccAddress, err error)

create an AccAddress from a hex string

func (AccAddress) Bytes

func (bz AccAddress) Bytes() []byte

Allow it to fulfill various interfaces in light-client, etc...

func (AccAddress) Format

func (bz AccAddress) Format(s fmt.State, verb rune)

For Printf / Sprintf, returns bech32 when using %s

func (AccAddress) Marshal

func (bz AccAddress) Marshal() ([]byte, error)

Marshal needed for protobuf compatibility

func (AccAddress) MarshalJSON

func (bz AccAddress) MarshalJSON() ([]byte, error)

Marshals to JSON using Bech32

func (AccAddress) String

func (bz AccAddress) String() string

func (*AccAddress) Unmarshal

func (bz *AccAddress) Unmarshal(data []byte) error

Unmarshal needed for protobuf compatibility

func (*AccAddress) UnmarshalJSON

func (bz *AccAddress) UnmarshalJSON(data []byte) error

Unmarshals from JSON assuming Bech32 encoding

type AnteHandler

type AnteHandler func(ctx Context, tx Tx) (newCtx Context, result Result, abort bool)

AnteHandler authenticates transactions, before their internal messages are handled. If newCtx.IsZero(), ctx is used instead.

type BeginBlocker

type BeginBlocker func(ctx Context, req abci.RequestBeginBlock) abci.ResponseBeginBlock

run code before the transactions in a block

type BondStatus

type BondStatus byte

status of a validator

const (
	Unbonded  BondStatus = 0x00
	Unbonding BondStatus = 0x01
	Bonded    BondStatus = 0x02
)

nolint

func (BondStatus) Equal

func (b BondStatus) Equal(b2 BondStatus) bool

nolint

type CacheKVStore

type CacheKVStore interface {
	KVStore

	// Writes operations to underlying KVStore
	Write()
}

CacheKVStore cache-wraps a KVStore. After calling .Write() on the CacheKVStore, all previously created CacheKVStores on the object expire.

type CacheMultiStore

type CacheMultiStore interface {
	MultiStore
	Write() // Writes operations to underlying KVStore
}

From MultiStore.CacheMultiStore()....

type CacheWrap

type CacheWrap interface {
	// Write syncs with the underlying store.
	Write()

	// CacheWrap recursively wraps again.
	CacheWrap() CacheWrap

	// CacheWrapWithTrace recursively wraps again with tracing enabled.
	CacheWrapWithTrace(w io.Writer, tc TraceContext) CacheWrap
}

CacheWrap makes the most appropriate cache-wrap. For example, IAVLStore.CacheWrap() returns a CacheKVStore. CacheWrap should not return a Committer, since Commit cache-wraps make no sense. It can return KVStore, HeapStore, SpaceStore, etc.

type CacheWrapper

type CacheWrapper interface {
	// CacheWrap cache wraps.
	CacheWrap() CacheWrap

	// CacheWrapWithTrace cache wraps with tracing enabled.
	CacheWrapWithTrace(w io.Writer, tc TraceContext) CacheWrap
}

type CodeType

type CodeType uint16

CodeType - code identifier within codespace

type CodespaceType

type CodespaceType uint16

CodespaceType - codespace identifier

type Codespacer

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

Codespacer is a simple struct to track reserved codespaces

func NewCodespacer

func NewCodespacer() *Codespacer

NewCodespacer generates a new Codespacer with the starting codespace

func (*Codespacer) RegisterNext

func (c *Codespacer) RegisterNext(codespace CodespaceType) CodespaceType

RegisterNext reserves and returns the next available codespace, starting from a default, and panics if the maximum codespace is reached

func (*Codespacer) RegisterOrPanic

func (c *Codespacer) RegisterOrPanic(codespace CodespaceType)

RegisterOrPanic reserved a codespace or panics if it is unavailable

type Coin

type Coin struct {
	Denom  string `json:"denom"`
	Amount Int    `json:"amount"`
}

Coin hold some amount of one currency

func NewCoin

func NewCoin(denom string, amount int64) Coin

func ParseCoin

func ParseCoin(coinStr string) (coin Coin, err error)

ParseCoin parses a cli input for one coin type, returning errors if invalid. This returns an error on an empty string as well.

func (Coin) IsEqual

func (coin Coin) IsEqual(other Coin) bool

IsEqual returns true if the two sets of Coins have the same value

func (Coin) IsGTE

func (coin Coin) IsGTE(other Coin) bool

IsGTE returns true if they are the same type and the receiver is an equal or greater value

func (Coin) IsNotNegative

func (coin Coin) IsNotNegative() bool

IsNotNegative returns true if coin amount is not negative

func (Coin) IsPositive

func (coin Coin) IsPositive() bool

IsPositive returns true if coin amount is positive

func (Coin) IsZero

func (coin Coin) IsZero() bool

IsZero returns if this represents no money

func (Coin) Minus

func (coin Coin) Minus(coinB Coin) Coin

Subtracts amounts of two coins with same denom

func (Coin) Plus

func (coin Coin) Plus(coinB Coin) Coin

Adds amounts of two coins with same denom

func (Coin) SameDenomAs

func (coin Coin) SameDenomAs(other Coin) bool

SameDenomAs returns true if the two coins are the same denom

func (Coin) String

func (coin Coin) String() string

String provides a human-readable representation of a coin

type Coins

type Coins []Coin

Coins is a set of Coin, one per currency

func ParseCoins

func ParseCoins(coinsStr string) (coins Coins, err error)

ParseCoins will parse out a list of coins separated by commas. If nothing is provided, it returns nil Coins. Returned coins are sorted.

func (Coins) AmountOf

func (coins Coins) AmountOf(denom string) Int

Returns the amount of a denom from coins

func (Coins) IsEqual

func (coins Coins) IsEqual(coinsB Coins) bool

IsEqual returns true if the two sets of Coins have the same value

func (Coins) IsGTE

func (coins Coins) IsGTE(coinsB Coins) bool

IsGTE returns True iff coins is NonNegative(), and for every currency in coinsB, the currency is present at an equal or greater amount in coinsB

func (Coins) IsNotNegative

func (coins Coins) IsNotNegative() bool

IsNotNegative returns true if there is no currency with a negative value (even no coins is true here)

func (Coins) IsPositive

func (coins Coins) IsPositive() bool

IsPositive returns true if there is at least one coin, and all currencies have a positive value

func (Coins) IsValid

func (coins Coins) IsValid() bool

IsValid asserts the Coins are sorted, and don't have 0 amounts

func (Coins) IsZero

func (coins Coins) IsZero() bool

IsZero returns true if there are no coins or all coins are zero.

func (Coins) Len

func (coins Coins) Len() int

nolint

func (Coins) Less

func (coins Coins) Less(i, j int) bool

func (Coins) Minus

func (coins Coins) Minus(coinsB Coins) Coins

Minus subtracts a set of coins from another (adds the inverse)

func (Coins) Negative

func (coins Coins) Negative() Coins

Negative returns a set of coins with all amount negative

func (Coins) Plus

func (coins Coins) Plus(coinsB Coins) Coins

Plus combines two sets of coins CONTRACT: Plus will never return Coins where one Coin has a 0 amount.

func (Coins) Sort

func (coins Coins) Sort() Coins

Sort is a helper function to sort the set of coins inplace

func (Coins) String

func (coins Coins) String() string

func (Coins) Swap

func (coins Coins) Swap(i, j int)

type CommitID

type CommitID struct {
	Version int64
	Hash    []byte
}

CommitID contains the tree version number and its merkle root.

func (CommitID) IsZero

func (cid CommitID) IsZero() bool

func (CommitID) String

func (cid CommitID) String() string

type CommitKVStore

type CommitKVStore interface {
	Committer
	KVStore
}

Stores of MultiStore must implement CommitStore.

type CommitMultiStore

type CommitMultiStore interface {
	Committer
	MultiStore

	// Mount a store of type using the given db.
	// If db == nil, the new store will use the CommitMultiStore db.
	MountStoreWithDB(key StoreKey, typ StoreType, db dbm.DB)

	// Panics on a nil key.
	GetCommitStore(key StoreKey) CommitStore

	// Panics on a nil key.
	GetCommitKVStore(key StoreKey) CommitKVStore

	// Load the latest persisted version.  Called once after all
	// calls to Mount*Store() are complete.
	LoadLatestVersion() error

	// Load a specific persisted version.  When you load an old
	// version, or when the last commit attempt didn't complete,
	// the next commit after loading must be idempotent (return the
	// same commit id).  Otherwise the behavior is undefined.
	LoadVersion(ver int64) error
}

A non-cache MultiStore.

type CommitStore

type CommitStore interface {
	Committer
	Store
}

Stores of MultiStore must implement CommitStore.

type Committer

type Committer interface {
	Commit() CommitID
	LastCommitID() CommitID
	SetPruning(PruningStrategy)
}

something that can persist to disk

type Context

type Context struct {
	context.Context
	// contains filtered or unexported fields
}

The intent of Context is for it to be an immutable object that can be cloned and updated cheaply with WithValue() and passed forward to the next decorator or handler. For example,

func MsgHandler(ctx Context, tx Tx) Result {
	...
	ctx = ctx.WithValue(key, value)
	...
}

func NewContext

func NewContext(ms MultiStore, header abci.Header, isCheckTx bool, logger log.Logger) Context

create a new context

func (Context) BlockHeader

func (c Context) BlockHeader() abci.Header

nolint

func (Context) BlockHeight

func (c Context) BlockHeight() int64

func (Context) CacheContext

func (c Context) CacheContext() (cc Context, writeCache func())

Cache the multistore and return a new cached context. The cached context is written to the context when writeCache is called.

func (Context) ChainID

func (c Context) ChainID() string

func (Context) GasMeter

func (c Context) GasMeter() GasMeter

func (Context) GetOp

func (c Context) GetOp(ver int64) (Op, bool)

Returns false if ver <= 0 || ver > len(c.pst.ops). The first operation is version 1.

func (Context) IsCheckTx

func (c Context) IsCheckTx() bool

func (Context) IsZero

func (c Context) IsZero() bool

is context nil

func (Context) KVStore

func (c Context) KVStore(key StoreKey) KVStore

KVStore fetches a KVStore from the MultiStore.

func (Context) Logger

func (c Context) Logger() log.Logger

func (Context) SigningValidators

func (c Context) SigningValidators() []abci.SigningValidator

func (Context) TxBytes

func (c Context) TxBytes() []byte

func (Context) Value

func (c Context) Value(key interface{}) interface{}

context value for the provided key

func (Context) WithBlockHeader

func (c Context) WithBlockHeader(header abci.Header) Context

func (Context) WithBlockHeight

func (c Context) WithBlockHeight(height int64) Context

func (Context) WithCacheWrapper

func (c Context) WithCacheWrapper(key interface{}, value CacheWrapper) Context

func (Context) WithChainID

func (c Context) WithChainID(chainID string) Context

func (Context) WithCloner

func (c Context) WithCloner(key interface{}, value cloner) Context

func (Context) WithGasMeter

func (c Context) WithGasMeter(meter GasMeter) Context

func (Context) WithInt32

func (c Context) WithInt32(key interface{}, value int32) Context

func (Context) WithIsCheckTx

func (c Context) WithIsCheckTx(isCheckTx bool) Context

func (Context) WithLogger

func (c Context) WithLogger(logger log.Logger) Context

func (Context) WithMultiStore

func (c Context) WithMultiStore(ms MultiStore) Context

func (Context) WithProtoMsg

func (c Context) WithProtoMsg(key interface{}, value proto.Message) Context

func (Context) WithSigningValidators

func (c Context) WithSigningValidators(SigningValidators []abci.SigningValidator) Context

func (Context) WithString

func (c Context) WithString(key interface{}, value string) Context

func (Context) WithTxBytes

func (c Context) WithTxBytes(txBytes []byte) Context

func (Context) WithUint32

func (c Context) WithUint32(key interface{}, value uint32) Context

func (Context) WithUint64

func (c Context) WithUint64(key interface{}, value uint64) Context

func (Context) WithValue

func (c Context) WithValue(key interface{}, value interface{}) Context

nolint

type Delegation

type Delegation interface {
	GetDelegator() AccAddress // delegator AccAddress for the bond
	GetValidator() AccAddress // validator owner AccAddress for the bond
	GetBondShares() Rat       // amount of validator's shares
}

delegation bond for a delegated proof of stake system

type DelegationSet

type DelegationSet interface {
	GetValidatorSet() ValidatorSet // validator set for which delegation set is based upon

	// iterate through all delegations from one delegator by validator-AccAddress,
	//   execute func for each validator
	IterateDelegations(ctx Context, delegator AccAddress,
		fn func(index int64, delegation Delegation) (stop bool))
}

properties for the set of all delegations for a particular

type EndBlocker

type EndBlocker func(ctx Context, req abci.RequestEndBlock) abci.ResponseEndBlock

run code after the transactions in a block and return updates to the validator set

type Error

type Error interface {

	// convenience
	TraceSDK(format string, args ...interface{}) Error

	// set codespace
	WithDefaultCodespace(CodespaceType) Error

	Code() CodeType
	Codespace() CodespaceType
	ABCILog() string
	ABCICode() ABCICodeType
	Result() Result
	QueryResult() abci.ResponseQuery
	// contains filtered or unexported methods
}

sdk Error type

func ErrInsufficientCoins

func ErrInsufficientCoins(msg string) Error

func ErrInsufficientFunds

func ErrInsufficientFunds(msg string) Error

func ErrInternal

func ErrInternal(msg string) Error

nolint

func ErrInvalidAddress

func ErrInvalidAddress(msg string) Error

func ErrInvalidCoins

func ErrInvalidCoins(msg string) Error

func ErrInvalidPubKey

func ErrInvalidPubKey(msg string) Error

func ErrInvalidSequence

func ErrInvalidSequence(msg string) Error

func ErrMemoTooLarge

func ErrMemoTooLarge(msg string) Error

func ErrOutOfGas

func ErrOutOfGas(msg string) Error

func ErrTxDecode

func ErrTxDecode(msg string) Error

func ErrUnauthorized

func ErrUnauthorized(msg string) Error

func ErrUnknownAddress

func ErrUnknownAddress(msg string) Error

func ErrUnknownRequest

func ErrUnknownRequest(msg string) Error

func NewError

func NewError(codespace CodespaceType, code CodeType, format string, args ...interface{}) Error

NewError - create an error.

type ErrorOutOfGas

type ErrorOutOfGas struct {
	Descriptor string
}

Error thrown when out of gas

type Gas

type Gas = int64

Gas measured by the SDK

type GasMeter

type GasMeter interface {
	GasConsumed() Gas
	ConsumeGas(amount Gas, descriptor string)
}

GasMeter interface to track gas consumption

func NewGasMeter

func NewGasMeter(limit Gas) GasMeter

func NewInfiniteGasMeter

func NewInfiniteGasMeter() GasMeter

type Handler

type Handler func(ctx Context, msg Msg) Result

Handler defines the core of the state transition function of an application.

type InitChainer

type InitChainer func(ctx Context, req abci.RequestInitChain) abci.ResponseInitChain

initialize application state at genesis

type Int

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

Int wraps integer with 256 bit range bound Checks overflow, underflow and division by zero Exists in range from -(2^255-1) to 2^255-1

func MinInt

func MinInt(i1, i2 Int) Int

Return the minimum of the ints

func NewInt

func NewInt(n int64) Int

NewInt constructs Int from int64

func NewIntFromBigInt

func NewIntFromBigInt(i *big.Int) Int

NewIntFromBigInt constructs Int from big.Int

func NewIntFromString

func NewIntFromString(s string) (res Int, ok bool)

NewIntFromString constructs Int from string

func NewIntWithDecimal

func NewIntWithDecimal(n int64, dec int) Int

NewIntWithDecimal constructs Int with decimal Result value is n*10^dec

func OneInt

func OneInt() Int

OneInt returns Int value with one

func ZeroInt

func ZeroInt() Int

ZeroInt returns Int value with zero

func (Int) Add

func (i Int) Add(i2 Int) (res Int)

Add adds Int from another

func (Int) AddRaw

func (i Int) AddRaw(i2 int64) Int

AddRaw adds int64 to Int

func (Int) BigInt

func (i Int) BigInt() *big.Int

BigInt converts Int to big.Int

func (Int) Div

func (i Int) Div(i2 Int) (res Int)

Div divides Int with Int

func (Int) DivRaw

func (i Int) DivRaw(i2 int64) Int

DivRaw divides Int with int64

func (Int) Equal

func (i Int) Equal(i2 Int) bool

Equal compares two Ints

func (Int) GT

func (i Int) GT(i2 Int) bool

GT returns true if first Int is greater than second

func (Int) Int64

func (i Int) Int64() int64

Int64 converts Int to int64 Panics if the value is out of range

func (Int) IsZero

func (i Int) IsZero() bool

IsZero returns true if Int is zero

func (Int) LT

func (i Int) LT(i2 Int) bool

LT returns true if first Int is lesser than second

func (Int) MarshalAmino

func (i Int) MarshalAmino() (string, error)

MarshalAmino defines custom encoding scheme

func (Int) MarshalJSON

func (i Int) MarshalJSON() ([]byte, error)

MarshalJSON defines custom encoding scheme

func (Int) Mul

func (i Int) Mul(i2 Int) (res Int)

Mul multiples two Ints

func (Int) MulRaw

func (i Int) MulRaw(i2 int64) Int

MulRaw multipies Int and int64

func (Int) Neg

func (i Int) Neg() (res Int)

Neg negates Int

func (Int) Sign

func (i Int) Sign() int

Sign returns sign of Int

func (Int) String

func (i Int) String() string

func (Int) Sub

func (i Int) Sub(i2 Int) (res Int)

Sub subtracts Int from another

func (Int) SubRaw

func (i Int) SubRaw(i2 int64) Int

SubRaw subtracts int64 from Int

func (*Int) UnmarshalAmino

func (i *Int) UnmarshalAmino(text string) error

UnmarshalAmino defines custom decoding scheme

func (*Int) UnmarshalJSON

func (i *Int) UnmarshalJSON(bz []byte) error

UnmarshalJSON defines custom decoding scheme

type Iterator

type Iterator = dbm.Iterator

Alias iterator to db's Iterator for convenience.

func KVStorePrefixIterator

func KVStorePrefixIterator(kvs KVStore, prefix []byte) Iterator

Iterator over all the keys with a certain prefix in ascending order

func KVStoreReversePrefixIterator

func KVStoreReversePrefixIterator(kvs KVStore, prefix []byte) Iterator

Iterator over all the keys with a certain prefix in descending order.

type KVPair

type KVPair cmn.KVPair

key-value result for iterator queries

type KVStore

type KVStore interface {
	Store

	// Get returns nil iff key doesn't exist. Panics on nil key.
	Get(key []byte) []byte

	// Has checks if a key exists. Panics on nil key.
	Has(key []byte) bool

	// Set sets the key. Panics on nil key.
	Set(key, value []byte)

	// Delete deletes the key. Panics on nil key.
	Delete(key []byte)

	// Prefix applied keys with the argument
	Prefix(prefix []byte) KVStore

	// Iterator over a domain of keys in ascending order. End is exclusive.
	// Start must be less than end, or the Iterator is invalid.
	// Iterator must be closed by caller.
	// To iterate over entire domain, use store.Iterator(nil, nil)
	// CONTRACT: No writes may happen within a domain while an iterator exists over it.
	Iterator(start, end []byte) Iterator

	// Iterator over a domain of keys in descending order. End is exclusive.
	// Start must be greater than end, or the Iterator is invalid.
	// Iterator must be closed by caller.
	// CONTRACT: No writes may happen within a domain while an iterator exists over it.
	ReverseIterator(start, end []byte) Iterator
}

KVStore is a simple interface to get/set data

type KVStoreGetter

type KVStoreGetter interface {
	KVStore(Context) KVStore
}

Wrapper for StoreKeys to get KVStores

type KVStoreKey

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

KVStoreKey is used for accessing substores. Only the pointer value should ever be used - it functions as a capabilities key.

func NewKVStoreKey

func NewKVStoreKey(name string) *KVStoreKey

NewKVStoreKey returns a new pointer to a KVStoreKey. Use a pointer so keys don't collide.

func (*KVStoreKey) KVStore

func (key *KVStoreKey) KVStore(ctx Context) KVStore

Implements KVStoreGetter

func (*KVStoreKey) Name

func (key *KVStoreKey) Name() string

func (*KVStoreKey) String

func (key *KVStoreKey) String() string

type Msg

type Msg interface {

	// Return the message type.
	// Must be alphanumeric or empty.
	Type() string

	// ValidateBasic does a simple validation check that
	// doesn't require access to any other information.
	ValidateBasic() Error

	// Get the canonical byte representation of the Msg.
	GetSignBytes() []byte

	// Signers returns the addrs of signers that must sign.
	// CONTRACT: All signatures must be present to be valid.
	// CONTRACT: Returns addrs in some deterministic order.
	GetSigners() []AccAddress
}

Transactions messages must fulfill the Msg

type MultiStore

type MultiStore interface {
	Store

	// Cache wrap MultiStore.
	// NOTE: Caller should probably not call .Write() on each, but
	// call CacheMultiStore.Write().
	CacheMultiStore() CacheMultiStore

	// Convenience for fetching substores.
	GetStore(StoreKey) Store
	GetKVStore(StoreKey) KVStore
	GetKVStoreWithGas(GasMeter, StoreKey) KVStore

	// TracingEnabled returns if tracing is enabled for the MultiStore.
	TracingEnabled() bool

	// WithTracer sets the tracer for the MultiStore that the underlying
	// stores will utilize to trace operations. A MultiStore is returned.
	WithTracer(w io.Writer) MultiStore

	// WithTracingContext sets the tracing context for a MultiStore. It is
	// implied that the caller should update the context when necessary between
	// tracing operations. A MultiStore is returned.
	WithTracingContext(TraceContext) MultiStore

	// ResetTraceContext resets the current tracing context.
	ResetTraceContext() MultiStore
}

type Op

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

XXX add description

type PeerFilter

type PeerFilter func(info string) abci.ResponseQuery

respond to p2p filtering queries from Tendermint

type PrefixStoreGetter

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

Getter struct for prefixed stores

func NewPrefixStoreGetter

func NewPrefixStoreGetter(key StoreKey, prefix []byte) PrefixStoreGetter

func (PrefixStoreGetter) KVStore

func (getter PrefixStoreGetter) KVStore(ctx Context) KVStore

Implements sdk.KVStoreGetter

type PruningStrategy

type PruningStrategy uint8

PruningStrategy specfies how old states will be deleted over time

const (
	// PruneSyncable means only those states not needed for state syncing will be deleted (keeps last 100 + every 10000th)
	PruneSyncable PruningStrategy = iota

	// PruneEverything means all saved states will be deleted, storing only the current state
	PruneEverything PruningStrategy = iota

	// PruneNothing means all historic states will be saved, nothing will be deleted
	PruneNothing PruningStrategy = iota
)

type Queryable

type Queryable interface {
	Query(abci.RequestQuery) abci.ResponseQuery
}

Queryable allows a Store to expose internal state to the abci.Query interface. Multistore can route requests to the proper Store.

This is an optional, but useful extension to any CommitStore

type Rat

type Rat struct {
	*big.Rat `json:"rat"`
}

NOTE: never use new(Rat) or else we will panic unmarshalling into the nil embedded big.Rat

func MinRat

func MinRat(r1, r2 Rat) Rat

minimum rational between two

func NewRat

func NewRat(Numerator int64, Denominator ...int64) Rat

New - create a new Rat from integers

func NewRatFromBigInt

func NewRatFromBigInt(num *big.Int, denom ...*big.Int) Rat

NewRatFromBigInt constructs Rat from big.Int

func NewRatFromInt

func NewRatFromInt(num Int, denom ...Int) Rat

NewRatFromInt constructs Rat from Int

func OneRat

func OneRat() Rat

func ZeroRat

func ZeroRat() Rat

nolint - common values

func (Rat) Add

func (r Rat) Add(r2 Rat) Rat

func (Rat) Denom

func (r Rat) Denom() Int

func (Rat) Equal

func (r Rat) Equal(r2 Rat) bool

func (Rat) EvaluateBig

func (r Rat) EvaluateBig() *big.Int

evaluate the rational using bankers rounding

func (Rat) FloatString

func (r Rat) FloatString() string

func (Rat) GT

func (r Rat) GT(r2 Rat) bool

func (Rat) GTE

func (r Rat) GTE(r2 Rat) bool

func (Rat) IsZero

func (r Rat) IsZero() bool

func (Rat) LT

func (r Rat) LT(r2 Rat) bool

func (Rat) LTE

func (r Rat) LTE(r2 Rat) bool

func (Rat) MarshalAmino

func (r Rat) MarshalAmino() (string, error)

Wraps r.MarshalText().

func (Rat) Mul

func (r Rat) Mul(r2 Rat) Rat

func (Rat) Num

func (r Rat) Num() Int

nolint

func (Rat) Quo

func (r Rat) Quo(r2 Rat) Rat

func (Rat) Round

func (r Rat) Round(precisionFactor int64) Rat

round Rat with the provided precisionFactor

func (Rat) RoundInt

func (r Rat) RoundInt() Int

RoundInt round the rational using bankers rounding

func (Rat) RoundInt64

func (r Rat) RoundInt64() int64

RoundInt64 rounds the rational using bankers rounding

func (Rat) String

func (r Rat) String() string

func (Rat) Sub

func (r Rat) Sub(r2 Rat) Rat

func (Rat) ToLeftPadded

func (r Rat) ToLeftPadded(totalDigits int8) string

TODO panic if negative or if totalDigits < len(initStr)??? evaluate as an integer and return left padded string

func (*Rat) UnmarshalAmino

func (r *Rat) UnmarshalAmino(text string) (err error)

Requires a valid JSON string - strings quotes and calls UnmarshalText

type Result

type Result struct {

	// Code is the response code, is stored back on the chain.
	Code ABCICodeType

	// Data is any data returned from the app.
	Data []byte

	// Log is just debug information. NOTE: nondeterministic.
	Log string

	// GasWanted is the maximum units of work we allow this tx to perform.
	GasWanted int64

	// GasUsed is the amount of gas actually consumed. NOTE: unimplemented
	GasUsed int64

	// Tx fee amount and denom.
	FeeAmount int64
	FeeDenom  string

	// Tags are used for transaction indexing and pubsub.
	Tags Tags
}

Result is the union of ResponseDeliverTx and ResponseCheckTx.

func (Result) IsOK

func (res Result) IsOK() bool

TODO: In the future, more codes may be OK.

type Store

type Store interface {
	GetStoreType() StoreType
	CacheWrapper
}

type StoreKey

type StoreKey interface {
	Name() string
	String() string
}

StoreKey is a key used to index stores in a MultiStore.

type StoreType

type StoreType int

kind of store

const (
	//nolint
	StoreTypeMulti StoreType = iota
	StoreTypeDB
	StoreTypeIAVL
	StoreTypePrefix
)

type Tag

type Tag = cmn.KVPair

Type synonym for convenience

func MakeTag

func MakeTag(k string, v []byte) Tag

Make a tag from a key and a value

type Tags

type Tags cmn.KVPairs

Type synonym for convenience

func EmptyTags

func EmptyTags() Tags

New empty tags

func NewTags

func NewTags(tags ...interface{}) Tags

New variadic tags, must be k string, v []byte repeating

func (Tags) AppendTag

func (t Tags) AppendTag(k string, v []byte) Tags

Append a single tag

func (Tags) AppendTags

func (t Tags) AppendTags(tags Tags) Tags

Append two lists of tags

func (Tags) ToKVPairs

func (t Tags) ToKVPairs() []cmn.KVPair

Turn tags into KVPair list

type TestMsg

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

msg type for testing

func NewTestMsg

func NewTestMsg(addrs ...AccAddress) *TestMsg

func (*TestMsg) GetSignBytes

func (msg *TestMsg) GetSignBytes() []byte

func (*TestMsg) GetSigners

func (msg *TestMsg) GetSigners() []AccAddress

func (*TestMsg) Type

func (msg *TestMsg) Type() string

nolint

func (*TestMsg) ValidateBasic

func (msg *TestMsg) ValidateBasic() Error

type TraceContext

type TraceContext map[string]interface{}

TraceContext contains TraceKVStore context data. It will be written with every trace operation.

type Tx

type Tx interface {

	// Gets the Msg.
	GetMsgs() []Msg
}

Transactions objects must fulfill the Tx

type TxDecoder

type TxDecoder func(txBytes []byte) (Tx, Error)

TxDecoder unmarshals transaction bytes

type Uint

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

Int wraps integer with 256 bit range bound Checks overflow, underflow and division by zero Exists in range from 0 to 2^256-1

func MinUint

func MinUint(i1, i2 Uint) Uint

Return the minimum of the Uints

func NewUint

func NewUint(n uint64) Uint

NewUint constructs Uint from int64

func NewUintFromBigInt

func NewUintFromBigInt(i *big.Int) Uint

NewUintFromBigUint constructs Uint from big.Uint

func NewUintFromString

func NewUintFromString(s string) (res Uint, ok bool)

NewUintFromString constructs Uint from string

func NewUintWithDecimal

func NewUintWithDecimal(n int64, dec int) Uint

NewUintWithDecimal constructs Uint with decimal Result value is n*10^dec

func OneUint

func OneUint() Uint

OneUint returns Uint value with one

func ZeroUint

func ZeroUint() Uint

ZeroUint returns Uint value with zero

func (Uint) Add

func (i Uint) Add(i2 Uint) (res Uint)

Add adds Uint from another

func (Uint) AddRaw

func (i Uint) AddRaw(i2 uint64) Uint

AddRaw adds int64 to Uint

func (Uint) BigInt

func (i Uint) BigInt() *big.Int

BigInt converts Uint to big.Unt

func (Uint) Div

func (i Uint) Div(i2 Uint) (res Uint)

Div divides Uint with Uint

func (Uint) DivRaw

func (i Uint) DivRaw(i2 uint64) Uint

Div divides Uint with int64

func (Uint) Equal

func (i Uint) Equal(i2 Uint) bool

Equal compares two Uints

func (Uint) GT

func (i Uint) GT(i2 Uint) bool

GT returns true if first Uint is greater than second

func (Uint) IsZero

func (i Uint) IsZero() bool

IsZero returns true if Uint is zero

func (Uint) LT

func (i Uint) LT(i2 Uint) bool

LT returns true if first Uint is lesser than second

func (Uint) MarshalAmino

func (i Uint) MarshalAmino() (string, error)

MarshalAmino defines custom encoding scheme

func (Uint) MarshalJSON

func (i Uint) MarshalJSON() ([]byte, error)

MarshalJSON defines custom encoding scheme

func (Uint) Mul

func (i Uint) Mul(i2 Uint) (res Uint)

Mul multiples two Uints

func (Uint) MulRaw

func (i Uint) MulRaw(i2 uint64) Uint

MulRaw multipies Uint and int64

func (Uint) Sign

func (i Uint) Sign() int

Sign returns sign of Uint

func (Uint) Sub

func (i Uint) Sub(i2 Uint) (res Uint)

Sub subtracts Uint from another

func (Uint) SubRaw

func (i Uint) SubRaw(i2 uint64) Uint

SubRaw subtracts int64 from Uint

func (Uint) Uint64

func (i Uint) Uint64() uint64

Uint64 converts Uint to uint64 Panics if the value is out of range

func (*Uint) UnmarshalAmino

func (i *Uint) UnmarshalAmino(text string) error

UnmarshalAmino defines custom decoding scheme

func (*Uint) UnmarshalJSON

func (i *Uint) UnmarshalJSON(bz []byte) error

UnmarshalJSON defines custom decoding scheme

type ValAddress

type ValAddress []byte

AccAddress a wrapper around bytes meant to represent a validator address (from over ABCI). When marshaled to a string or json, it uses bech32

func ValAddressFromBech32

func ValAddressFromBech32(address string) (addr ValAddress, err error)

create a ValAddress from a bech32 string

func ValAddressFromHex

func ValAddressFromHex(address string) (addr ValAddress, err error)

create a ValAddress from a hex string

func (ValAddress) Bytes

func (bz ValAddress) Bytes() []byte

Allow it to fulfill various interfaces in light-client, etc...

func (ValAddress) Format

func (bz ValAddress) Format(s fmt.State, verb rune)

For Printf / Sprintf, returns bech32 when using %s

func (ValAddress) Marshal

func (bz ValAddress) Marshal() ([]byte, error)

Marshal needed for protobuf compatibility

func (ValAddress) MarshalJSON

func (bz ValAddress) MarshalJSON() ([]byte, error)

Marshals to JSON using Bech32

func (ValAddress) String

func (bz ValAddress) String() string

func (*ValAddress) Unmarshal

func (bz *ValAddress) Unmarshal(data []byte) error

Unmarshal needed for protobuf compatibility

func (*ValAddress) UnmarshalJSON

func (bz *ValAddress) UnmarshalJSON(data []byte) error

Unmarshals from JSON assuming Bech32 encoding

type Validator

type Validator interface {
	GetRevoked() bool         // whether the validator is revoked
	GetMoniker() string       // moniker of the validator
	GetStatus() BondStatus    // status of the validator
	GetOwner() AccAddress     // owner AccAddress to receive/return validators coins
	GetPubKey() crypto.PubKey // validation pubkey
	GetPower() Rat            // validation power
	GetDelegatorShares() Rat  // Total out standing delegator shares
	GetBondHeight() int64     // height in which the validator became active
}

validator for a delegated proof of stake system

type ValidatorSet

type ValidatorSet interface {
	// iterate through validator by owner-AccAddress, execute func for each validator
	IterateValidators(Context,
		func(index int64, validator Validator) (stop bool))

	// iterate through bonded validator by pubkey-AccAddress, execute func for each validator
	IterateValidatorsBonded(Context,
		func(index int64, validator Validator) (stop bool))

	Validator(Context, AccAddress) Validator // get a particular validator by owner AccAddress
	TotalPower(Context) Rat                  // total power of the validator set

	// slash the validator and delegators of the validator, specifying offence height, offence power, and slash fraction
	Slash(Context, crypto.PubKey, int64, int64, Rat)
	Revoke(Context, crypto.PubKey)   // revoke a validator
	Unrevoke(Context, crypto.PubKey) // unrevoke a validator
}

properties for the set of all validators

Directories

Path Synopsis
lib