types

package
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 Go to latest Published: Feb 21, 2018 License: Apache-2.0 Imports: 13 Imported by: 46,515

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Constants

This section is empty.

Variables

This section is empty.

Functions

func CodeToDefaultMsg added in v0.2.0 

func CodeToDefaultMsg(code CodeType) string

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

Types

type Account added in v0.2.0 

type Account interface {
	GetAddress() crypto.Address
	SetAddress(crypto.Address) error // errors if already set.

	GetPubKey() crypto.PubKey // can return nil.
	SetPubKey(crypto.PubKey) error

	GetSequence() int64
	SetSequence(int64) error

	GetCoins() Coins
	SetCoins(Coins) error

	Get(key interface{}) (value interface{}, err error)
	Set(key interface{}, value interface{}) error
}

Account is a standard account using a sequence number for replay protection and a pubkey for authentication.

type AccountMapper added in v0.2.0 

type AccountMapper interface {
	NewAccountWithAddress(ctx Context, addr crypto.Address) Account
	GetAccount(ctx Context, addr crypto.Address) Account
	SetAccount(ctx Context, acc Account)
}

AccountMapper stores and retrieves accounts from stores retrieved from the context.

type AnteHandler 

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

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 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
}

CacheWrap() makes the most appropriate cache-wrap. For example, IAVLStore.CacheWrap() returns a CacheKVStore.

CacheWrap() should not return a Committer, since Commit() on cache-wraps make no sense. It can return KVStore, HeapStore, SpaceStore, etc.

type CacheWrapper 

type CacheWrapper interface {
	CacheWrap() CacheWrap
}

type CodeType added in v0.2.0 

type CodeType uint32

ABCI Response Code 

const (
	CodeOK                  CodeType = 0
	CodeInternal            CodeType = 1
	CodeTxParse             CodeType = 2
	CodeBadNonce            CodeType = 3
	CodeUnauthorized        CodeType = 4
	CodeInsufficientFunds   CodeType = 5
	CodeUnknownRequest      CodeType = 6
	CodeUnrecognizedAddress CodeType = 7
	CodeInvalidSequence     CodeType = 8

	CodeGenesisParse CodeType = 0xdead // TODO: remove ?
)

ABCI Response Codes Base SDK reserves 0 ~ 99.

func (CodeType) IsOK added in v0.2.0 

func (code CodeType) IsOK() bool

is everything okay?

type Coin 

type Coin struct {
	Denom  string `json:"denom"`
	Amount int64  `json:"amount"`
}

Coin hold some amount of one currency

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) 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) IsZero 

func (coin Coin) IsZero() bool

IsZero returns if this represents no money

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) int64

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 added in v0.2.0 

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 added in v0.2.0 

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 added in v0.2.0 

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

func (Coins) Len 

func (coins Coins) Len() int

nolint

func (Coins) Less 

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

func (Coins) Minus added in v0.2.0 

func (coins Coins) Minus(coinsB Coins) Coins

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

func (Coins) Negative added in v0.2.0 

func (coins Coins) Negative() Coins

Negative returns a set of coins with all amount negative

func (Coins) Plus added in v0.2.0 

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()

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 added in v0.2.0 

func (cid CommitID) IsZero() bool

func (CommitID) String added in v0.2.0 

func (cid CommitID) String() string

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

	// 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
}

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, txBytes []byte) 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) ChainID 

func (c Context) ChainID() string

func (Context) GetOp added in v0.2.0 

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) 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 added in v0.2.0 

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

func (Context) WithChainID 

func (c Context) WithChainID(chainID string) Context

func (Context) WithCloner added in v0.2.0 

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

func (Context) WithInt32 added in v0.2.0 

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

func (Context) WithIsCheckTx 

func (c Context) WithIsCheckTx(isCheckTx bool) Context

func (Context) WithMultiStore 

func (c Context) WithMultiStore(ms MultiStore) Context

func (Context) WithProtoMsg added in v0.2.0 

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

func (Context) WithString added in v0.2.0 

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

func (Context) WithTxBytes 

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

func (Context) WithUint32 added in v0.2.0 

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

func (Context) WithUint64 added in v0.2.0 

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

func (Context) WithValue 

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

nolint

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 added in v0.2.0 

type Error interface {
	Error() string
	ABCICode() CodeType
	ABCILog() string
	Trace(msg string) Error
	TraceCause(cause error, msg string) Error
	Cause() error
	Result() Result
}

sdk Error type

func ErrBadNonce added in v0.9.0 

func ErrBadNonce(msg string) Error

func ErrGenesisParse added in v0.2.0 

func ErrGenesisParse(msg string) Error

func ErrInsufficientFunds added in v0.2.0 

func ErrInsufficientFunds(msg string) Error

func ErrInternal added in v0.2.0 

func ErrInternal(msg string) Error

nolint

func ErrInvalidSequence added in v0.2.0 

func ErrInvalidSequence(msg string) Error

func ErrTxParse added in v0.9.0 

func ErrTxParse(msg string) Error

func ErrUnauthorized added in v0.2.0 

func ErrUnauthorized(msg string) Error

func ErrUnknownRequest added in v0.2.0 

func ErrUnknownRequest(msg string) Error

func ErrUnrecognizedAddress added in v0.9.0 

func ErrUnrecognizedAddress(addr crypto.Address) Error

func NewError added in v0.2.0 

func NewError(code CodeType, msg string) Error

type Handler 

type Handler func(ctx Context, msg Msg) Result

core function variable which application runs for transactions

type InitChainer 

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

initialize application state at genesis

type Iterator 

type Iterator = dbm.Iterator

Alias iterator to db's Iterator for convenience.

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)

	// Iterator over a domain of keys in ascending order. End is exclusive.
	// Start must be less than end, or the Iterator is invalid.
	// 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.
	// 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 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) Name added in v0.2.0 

func (key *KVStoreKey) Name() string

func (*KVStoreKey) String added in v0.2.0 

func (key *KVStoreKey) String() string

type Msg 

type Msg interface {

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

	// Get some property of the Msg.
	Get(key interface{}) (value interface{})

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

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

	// 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() []crypto.Address
}

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
}

type Op added in v0.2.0 

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

XXX add description

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 Result 

type Result struct {

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

	// 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: not used.
	GasUsed int64

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

	// Changes to the validator set.
	ValidatorUpdates []abci.Validator

	// Tags are used for transaction indexing and pubsub.
	Tags []cmn.KVPair
}

Result is the union of ResponseDeliverTx and ResponseCheckTx.

func (Result) IsOK added in v0.2.0 

func (res Result) IsOK() bool

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

func (Result) ToQuery added in v0.9.0 

func (res Result) ToQuery() abci.ResponseQuery

ToQuery allows us to return sdk.Error.Result() in query responses

type StdSignature added in v0.2.0 

type StdSignature struct {
	crypto.PubKey // optional
	crypto.Signature
	Sequence int64
}

Standard Signature

type StdTx added in v0.2.0 

type StdTx struct {
	Msg
	Signatures []StdSignature
}

StdTx is a standard way to wrap a Msg with Signatures. NOTE: the first signature is the FeePayer (Signatures must not be nil).

func NewStdTx added in v0.2.0 

func NewStdTx(msg Msg, sigs []StdSignature) StdTx

func (StdTx) GetFeePayer added in v0.9.0 

func (tx StdTx) GetFeePayer() crypto.Address

func (StdTx) GetMsg added in v0.2.0 

func (tx StdTx) GetMsg() Msg

nolint

func (StdTx) GetSignatures added in v0.2.0 

func (tx StdTx) GetSignatures() []StdSignature

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
)

type Tx 

type Tx interface {

	// Gets the Msg.
	GetMsg() Msg

	// The address that pays the base fee for this message.  The fee is
	// deducted before the Msg is processed.
	GetFeePayer() crypto.Address

	// Signatures returns the signature of signers who signed the Msg.
	// CONTRACT: Length returned is same as length of
	// pubkeys returned from MsgKeySigners, and the order
	// matches.
	// CONTRACT: If the signature is missing (ie the Msg is
	// invalid), then the corresponding signature is
	// .Empty().
	GetSignatures() []StdSignature
}

Transactions objects must fulfill the Tx

type TxDecoder 

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

Application function variable used to unmarshal transaction bytes

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