core

package
v0.7.11 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Dec 24, 2014 License: LGPL-2.1-or-later Imports: 21 Imported by: 5,161

Documentation

Index

Constants

This section is empty.

Variables

View Source 
var BlockReward *big.Int = big.NewInt(1.5e+18)
View Source 
var EmptyListRoot = crypto.Sha3(ethutil.Encode(""))
View Source 
var EmptyShaList = crypto.Sha3(ethutil.Encode([]interface{}{}))
View Source 
var Found bool
View Source 
var Genesis = []interface{}{GenesisHeader, []interface{}{}, []interface{}{}}
View Source 
var GenesisHeader = []interface{}{

	ZeroHash256,

	EmptyShaList,

	ZeroHash160,

	EmptyShaList,

	EmptyListRoot,

	EmptyListRoot,

	ZeroHash512,

	big.NewInt(131072),

	ethutil.Big0,

	big.NewInt(1000000),

	ethutil.Big0,

	ethutil.Big0,

	nil,

	crypto.Sha3(big.NewInt(42).Bytes()),
}
View Source 
var MinGasPrice = big.NewInt(10000000000000)
View Source 
var ZeroHash160 = make([]byte, 20)
View Source 
var ZeroHash256 = make([]byte, 32)
View Source 
var ZeroHash512 = make([]byte, 64)

Functions

func AddTestNetFunds 

func AddTestNetFunds(block *types.Block)

func AddressFromMessage 

func AddressFromMessage(msg Message) []byte

func CalcDifficulty 

func CalcDifficulty(block, parent *types.Block) *big.Int

func DaggerVerify 

func DaggerVerify(hash, diff, nonce *big.Int) bool

func Disassemble 

func Disassemble(script []byte) (asm []string)

func EachTx 

func EachTx(pool *list.List, it func(*types.Transaction, *list.Element) bool)

func FindTx 

func FindTx(pool *list.List, finder func(*types.Transaction, *list.Element) bool) *types.Transaction

func IsGasLimitErr 

func IsGasLimitErr(err error) bool

func IsKnownBlockErr 

func IsKnownBlockErr(e error) bool

func IsNonceErr 

func IsNonceErr(err error) bool

func IsOutOfGasErr 

func IsOutOfGasErr(err error) bool

func IsParentErr 

func IsParentErr(err error) bool

func IsTDError 

func IsTDError(e error) bool

func IsUncleErr 

func IsUncleErr(err error) bool

func IsValidationErr 

func IsValidationErr(err error) bool

func MakeContract 

func MakeContract(msg Message, state *state.StateDB) *state.StateObject

Converts an transaction in to a state object

func MessageCreatesContract 

func MessageCreatesContract(msg Message) bool

func MessageGasValue 

func MessageGasValue(msg Message) *big.Int

func ParentError 

func ParentError(hash []byte) error

func Sum 

func Sum(sha hash.Hash) []byte

func UncleError 

func UncleError(str string) error

Types

type AccountChange 

type AccountChange struct {
	Address, StateAddress []byte
}

type BlockManager 

type BlockManager struct {

	// Proof of work used for validating
	Pow pow.PoW
	// contains filtered or unexported fields
}

func NewBlockManager 

func NewBlockManager(txpool *TxPool, chainManager *ChainManager, eventMux *event.TypeMux) *BlockManager

func (*BlockManager) AccumelateRewards 

func (sm *BlockManager) AccumelateRewards(statedb *state.StateDB, block, parent *types.Block) error

func (*BlockManager) ApplyTransactions 

func (self *BlockManager) ApplyTransactions(coinbase *state.StateObject, state *state.StateDB, block *types.Block, txs types.Transactions, transientProcess bool) (types.Receipts, types.Transactions, types.Transactions, types.Transactions, error)

func (*BlockManager) CalculateTD 

func (sm *BlockManager) CalculateTD(block *types.Block) (*big.Int, bool)

func (*BlockManager) GetMessages 

func (sm *BlockManager) GetMessages(block *types.Block) (messages []*state.Message, err error)

func (*BlockManager) Process 

func (sm *BlockManager) Process(block *types.Block) (td *big.Int, msgs state.Messages, err error)

func (*BlockManager) ProcessWithParent 

func (sm *BlockManager) ProcessWithParent(block, parent *types.Block) (td *big.Int, messages state.Messages, err error)

func (*BlockManager) TransitionState 

func (sm *BlockManager) TransitionState(statedb *state.StateDB, parent, block *types.Block) (receipts types.Receipts, err error)

func (*BlockManager) ValidateBlock 

func (sm *BlockManager) ValidateBlock(block, parent *types.Block) error

Validates the current block. Returns an error if the block was invalid, an uncle or anything that isn't on the current block chain. Validation validates easy over difficult (dagger takes longer time = difficult)

type ChainManager 

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

func NewChainManager 

func NewChainManager(mux *event.TypeMux) *ChainManager

func (*ChainManager) BlockInfo 

func (bc *ChainManager) BlockInfo(block *types.Block) types.BlockInfo

func (*ChainManager) CalcTotalDiff 

func (self *ChainManager) CalcTotalDiff(block *types.Block) (*big.Int, error)

func (*ChainManager) CurrentBlock 

func (self *ChainManager) CurrentBlock() *types.Block

func (*ChainManager) Export 

func (self *ChainManager) Export() []byte

func (*ChainManager) Genesis 

func (bc *ChainManager) Genesis() *types.Block

Accessors

func (*ChainManager) GetBlock 

func (self *ChainManager) GetBlock(hash []byte) *types.Block

func (*ChainManager) GetBlockByNumber 

func (self *ChainManager) GetBlockByNumber(num uint64) *types.Block

func (*ChainManager) GetChainHashesFromHash 

func (self *ChainManager) GetChainHashesFromHash(hash []byte, max uint64) (chain [][]byte)

func (*ChainManager) HasBlock 

func (bc *ChainManager) HasBlock(hash []byte) bool

Block fetching methods

func (*ChainManager) InsertChain 

func (self *ChainManager) InsertChain(chain types.Blocks) error

func (*ChainManager) LastBlockHash 

func (self *ChainManager) LastBlockHash() []byte

func (*ChainManager) LastBlockNumber 

func (self *ChainManager) LastBlockNumber() uint64

func (*ChainManager) NewBlock 

func (bc *ChainManager) NewBlock(coinbase []byte) *types.Block

Block creation & chain handling

func (*ChainManager) Reset 

func (bc *ChainManager) Reset()

func (*ChainManager) SetProcessor 

func (self *ChainManager) SetProcessor(proc types.BlockProcessor)

func (*ChainManager) State 

func (self *ChainManager) State() *state.StateDB

func (*ChainManager) Stop 

func (bc *ChainManager) Stop()

func (*ChainManager) Td 

func (self *ChainManager) Td() *big.Int

func (*ChainManager) TransState 

func (self *ChainManager) TransState() *state.StateDB

type Dagger 

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

func (*Dagger) Eval 

func (dag *Dagger) Eval(N *big.Int) *big.Int

func (*Dagger) Find 

func (dag *Dagger) Find(obj *big.Int, resChan chan int64)

func (*Dagger) Node 

func (dag *Dagger) Node(L uint64, i uint64) *big.Int

func (*Dagger) Search 

func (dag *Dagger) Search(hash, diff *big.Int) *big.Int

func (*Dagger) Verify 

func (dag *Dagger) Verify(hash, diff, nonce *big.Int) bool

type EthManager 

type EthManager interface {
	BlockManager() *BlockManager
	ChainManager() *ChainManager
	TxPool() *TxPool
	Broadcast(msgType wire.MsgType, data []interface{})
	PeerCount() int
	IsMining() bool
	IsListening() bool
	Peers() *list.List
	KeyManager() *crypto.KeyManager
	ClientIdentity() wire.ClientIdentity
	Db() ethutil.Database
	EventMux() *event.TypeMux
}

type Execution 

type Execution struct {
	Gas          *big.Int
	SkipTransfer bool
	// contains filtered or unexported fields
}

func NewExecution 

func NewExecution(env vm.Environment, address, input []byte, gas, gasPrice, value *big.Int) *Execution

func (*Execution) Addr 

func (self *Execution) Addr() []byte

func (*Execution) Call 

func (self *Execution) Call(codeAddr []byte, caller vm.ClosureRef) ([]byte, error)

func (*Execution) Create 

func (self *Execution) Create(caller vm.ClosureRef) (ret []byte, err error, account *state.StateObject)

type Filter 

type Filter struct {
	Altered []AccountChange

	BlockCallback   func(*types.Block)
	MessageCallback func(state.Messages)
	// contains filtered or unexported fields
}

Filtering interface

func NewFilter 

func NewFilter(eth EthManager) *Filter

Create a new filter which uses a bloom filter on blocks to figure out whether a particular block is interesting or not.

func (*Filter) AddAltered 

func (self *Filter) AddAltered(address, stateAddress []byte)

func (*Filter) AddFrom 

func (self *Filter) AddFrom(addr []byte)

func (*Filter) AddTo 

func (self *Filter) AddTo(addr []byte)

func (*Filter) FilterMessages 

func (self *Filter) FilterMessages(msgs []*state.Message) []*state.Message

func (*Filter) Find 

func (self *Filter) Find() []*state.Message

Run filters messages with the current parameters set

func (*Filter) SetEarliestBlock 

func (self *Filter) SetEarliestBlock(earliest int64)

Set the earliest and latest block for filtering. -1 = latest block (i.e., the current block) hash = particular hash from-to

func (*Filter) SetFrom 

func (self *Filter) SetFrom(addr [][]byte)

func (*Filter) SetLatestBlock 

func (self *Filter) SetLatestBlock(latest int64)

func (*Filter) SetMax 

func (self *Filter) SetMax(max int)

func (*Filter) SetSkip 

func (self *Filter) SetSkip(skip int)

func (*Filter) SetTo 

func (self *Filter) SetTo(addr [][]byte)

type GasLimitErr 

type GasLimitErr struct {
	Message string
	Is, Max *big.Int
}

func GasLimitError 

func GasLimitError(is, max *big.Int) *GasLimitErr

func (*GasLimitErr) Error 

func (err *GasLimitErr) Error() string

type KnownBlockError 

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

func (*KnownBlockError) Error 

func (self *KnownBlockError) Error() string

type Message 

type Message interface {
	Hash() []byte

	From() []byte
	To() []byte

	GasPrice() *big.Int
	Gas() *big.Int
	Value() *big.Int

	Nonce() uint64
	Data() []byte
}

type NewBlockEvent 

type NewBlockEvent struct{ Block *types.Block }

NewBlockEvent is posted when a block has been imported.

type NonceErr 

type NonceErr struct {
	Message string
	Is, Exp uint64
}

func NonceError 

func NonceError(is, exp uint64) *NonceErr

func (*NonceErr) Error 

func (err *NonceErr) Error() string

type OutOfGasErr 

type OutOfGasErr struct {
	Message string
}

func OutOfGasError 

func OutOfGasError() *OutOfGasErr

func (*OutOfGasErr) Error 

func (self *OutOfGasErr) Error() string

type ParentErr 

type ParentErr struct {
	Message string
}

Parent error. In case a parent is unknown this error will be thrown by the block manager

func (*ParentErr) Error 

func (err *ParentErr) Error() string

type Peer 

type Peer interface {
	Inbound() bool
	LastSend() time.Time
	LastPong() int64
	Host() []byte
	Port() uint16
	Version() string
	PingTime() string
	Connected() *int32
	Caps() *ethutil.Value
}

type StateTransition 

type StateTransition struct {
	Env vm.Environment
	// contains filtered or unexported fields
}

* The State transitioning model * * A state transition is a change made when a transaction is applied to the current world state * The state transitioning model does all all the necessary work to work out a valid new state root. * 1) Nonce handling * 2) Pre pay / buy gas of the coinbase (miner) * 3) Create a new state object if the recipient is \0*32 * 4) Value transfer * == If contract creation == * 4a) Attempt to run transaction data * 4b) If valid, use result as code for the new state object * == end == * 5) Run Script section * 6) Derive new state root

func NewStateTransition 

func NewStateTransition(coinbase *state.StateObject, msg Message, state *state.StateDB, block *types.Block) *StateTransition

func (*StateTransition) AddGas 

func (self *StateTransition) AddGas(amount *big.Int)

func (*StateTransition) BuyGas 

func (self *StateTransition) BuyGas() error

func (*StateTransition) Coinbase 

func (self *StateTransition) Coinbase() *state.StateObject

func (*StateTransition) From 

func (self *StateTransition) From() *state.StateObject

func (*StateTransition) GasUsed 

func (self *StateTransition) GasUsed() *big.Int

func (*StateTransition) RefundGas 

func (self *StateTransition) RefundGas()

func (*StateTransition) To 

func (self *StateTransition) To() *state.StateObject

func (*StateTransition) TransitionState 

func (self *StateTransition) TransitionState() (ret []byte, err error)

func (*StateTransition) UseGas 

func (self *StateTransition) UseGas(amount *big.Int) error

func (*StateTransition) VmEnv 

func (self *StateTransition) VmEnv() vm.Environment

type TDError 

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

func (*TDError) Error 

func (self *TDError) Error() string

type TxMsg 

type TxMsg struct {
	Tx   *types.Transaction
	Type TxMsgTy
}

type TxMsgTy 

type TxMsgTy byte

type TxPool 

type TxPool struct {
	SecondaryProcessor TxProcessor
	// contains filtered or unexported fields
}

The tx pool a thread safe transaction pool handler. In order to guarantee a non blocking pool we use a queue channel which can be independently read without needing access to the actual pool. If the pool is being drained or synced for whatever reason the transactions will simple queue up and handled when the mutex is freed.

func NewTxPool 

func NewTxPool(chainManager *ChainManager, broadcaster types.Broadcaster, eventMux *event.TypeMux) *TxPool

func (*TxPool) Add 

func (self *TxPool) Add(tx *types.Transaction) error

func (*TxPool) CurrentTransactions 

func (pool *TxPool) CurrentTransactions() []*types.Transaction

func (*TxPool) Flush 

func (pool *TxPool) Flush() []*types.Transaction

func (*TxPool) RemoveInvalid 

func (pool *TxPool) RemoveInvalid(state *state.StateDB)

func (*TxPool) RemoveSet 

func (self *TxPool) RemoveSet(txs types.Transactions)

func (*TxPool) Size 

func (self *TxPool) Size() int

func (*TxPool) Start 

func (pool *TxPool) Start()

func (*TxPool) Stop 

func (pool *TxPool) Stop()

func (*TxPool) ValidateTransaction 

func (pool *TxPool) ValidateTransaction(tx *types.Transaction) error

type TxPoolHook 

type TxPoolHook chan *types.Transaction

type TxPostEvent 

type TxPostEvent struct{ Tx *types.Transaction }

TxPostEvent is posted when a transaction has been processed.

type TxPreEvent 

type TxPreEvent struct{ Tx *types.Transaction }

TxPreEvent is posted when a transaction enters the transaction pool.

type TxProcessor 

type TxProcessor interface {
	ProcessTransaction(tx *types.Transaction)
}

type UncleErr 

type UncleErr struct {
	Message string
}

func (*UncleErr) Error 

func (err *UncleErr) Error() string

type VMEnv 

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

func NewEnv 

func NewEnv(state *state.StateDB, msg Message, block *types.Block) *VMEnv

func (*VMEnv) AddLog 

func (self *VMEnv) AddLog(log state.Log)

func (*VMEnv) BlockHash 

func (self *VMEnv) BlockHash() []byte

func (*VMEnv) BlockNumber 

func (self *VMEnv) BlockNumber() *big.Int

func (*VMEnv) Call 

func (self *VMEnv) Call(me vm.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error)

func (*VMEnv) CallCode 

func (self *VMEnv) CallCode(me vm.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error)

func (*VMEnv) Coinbase 

func (self *VMEnv) Coinbase() []byte

func (*VMEnv) Create 

func (self *VMEnv) Create(me vm.ClosureRef, addr, data []byte, gas, price, value *big.Int) ([]byte, error, vm.ClosureRef)

func (*VMEnv) Depth 

func (self *VMEnv) Depth() int

func (*VMEnv) Difficulty 

func (self *VMEnv) Difficulty() *big.Int

func (*VMEnv) GasLimit 

func (self *VMEnv) GasLimit() *big.Int

func (*VMEnv) Origin 

func (self *VMEnv) Origin() []byte

func (*VMEnv) PrevHash 

func (self *VMEnv) PrevHash() []byte

func (*VMEnv) SetDepth 

func (self *VMEnv) SetDepth(i int)

func (*VMEnv) State 

func (self *VMEnv) State() *state.StateDB

func (*VMEnv) Time 

func (self *VMEnv) Time() int64

func (*VMEnv) Transfer 

func (self *VMEnv) Transfer(from, to vm.Account, amount *big.Int) error

func (*VMEnv) Value 

func (self *VMEnv) Value() *big.Int

type ValidationErr 

type ValidationErr struct {
	Message string
}

Block validation error. If any validation fails, this error will be thrown

func ValidationError 

func ValidationError(format string, v ...interface{}) *ValidationErr

func (*ValidationErr) Error 

func (err *ValidationErr) Error() string

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