state

package

v0.0.0-...-0eca64e Latest Latest Go to latest Published: Jul 18, 2019 License: MIT Imports: 18 Imported by: 7

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Repository

github.com/bear987978897/evm-lite

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Documentation ¶

Index ¶

Variables
type DatabaseDeleter
type DatabasePutter
type DatabaseReader
type State
- func NewState(logger *logrus.Logger, dbFile string, dbCache int, genesisFile string) (*State, error)
type TxPool
- func NewTxPool(ethState *ethState.StateDB, signer ethTypes.Signer, ...) *TxPool
type WriteAheadState
- func NewWriteAheadState(db ethdb.Database, root common.Hash, signer ethTypes.Signer, ...) (*WriteAheadState, error)

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	MIPMapLevels = []uint64{1000000, 500000, 100000, 50000, 1000}
)

Functions ¶

This section is empty.

Types ¶

type DatabaseDeleter ¶

type DatabaseDeleter interface {
	Delete(key []byte) error
}

DatabaseDeleter wraps the Delete method of a backing data store.

type DatabasePutter ¶

type DatabasePutter interface {
	Put(key []byte, value []byte) error
}

DatabasePutter wraps the Put method of a backing data store.

type DatabaseReader ¶

type DatabaseReader interface {
	Get(key []byte) (value []byte, err error)
}

DatabaseReader wraps the Get method of a backing data store.

type State ¶

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

func NewState ¶

func NewState(logger *logrus.Logger, dbFile string, dbCache int, genesisFile string) (*State, error)

func (*State) ApplyTransaction ¶

func (s *State) ApplyTransaction(txBytes []byte, txIndex int, blockHash common.Hash) error

ApplyTransaction decodes a transaction and applies it to the WAS. It is meant to be called by the consensus system to apply transactions sequentially.

func (*State) Call ¶

func (s *State) Call(callMsg ethTypes.Message) ([]byte, error)

Call executes a readonly transaction on the statedb. It is called by the service handlers

func (*State) CheckTx ¶

func (s *State) CheckTx(tx *ethTypes.Transaction) error

CheckTx attempt to apply a transaction to the TxPool's statedb. It is called by the Service handlers to check if a transaction is valid before submitting it to the consensus system. This also updates the sender's Nonce in the TxPool's statedb.

func (*State) Commit ¶

func (s *State) Commit() (common.Hash, error)

Commit persists all pending state changes (in the WAS) to the DB, and resets the WAS and TxPool

func (*State) CreateGenesisAccounts ¶

func (s *State) CreateGenesisAccounts() error

func (*State) Empty ¶

func (s *State) Empty(addr common.Address) bool

Empty reports whether the account is non-existant or empty

func (*State) GetBalance ¶

func (s *State) GetBalance(addr common.Address) *big.Int

GetBalance returns an account's balance from the main ethState

func (*State) GetCode ¶

func (s *State) GetCode(addr common.Address) []byte

GetCode returns an account's bytecode from the main ethState

func (*State) GetNonce ¶

func (s *State) GetNonce(addr common.Address) uint64

GetNonce returns an account's nonce from the main ethState

func (*State) GetPoolNonce ¶

func (s *State) GetPoolNonce(addr common.Address) uint64

GetPoolNonce returns an account's nonce from the txpool's ethState

func (*State) GetReceipt ¶

func (s *State) GetReceipt(txHash common.Hash) (*ethTypes.Receipt, error)

GetReceipt fetches transaction receipts by transaction hash directly from the DB

func (*State) GetTransaction ¶

func (s *State) GetTransaction(hash common.Hash) (*ethTypes.Transaction, error)

GetTransaction fetches transactions by hash directly from the DB.

func (*State) InitState ¶

func (s *State) InitState() error

InitState initializes the statedb object, the write-ahead state, the transaction-pool, and creates genesis accounts.

type TxPool ¶

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

func NewTxPool ¶

func NewTxPool(ethState *ethState.StateDB,
	signer ethTypes.Signer,
	chainConfig params.ChainConfig,
	vmConfig vm.Config,
	gasLimit uint64,
	logger *logrus.Logger) *TxPool

func (*TxPool) CheckTx ¶

func (p *TxPool) CheckTx(tx *ethTypes.Transaction) error

func (*TxPool) GetNonce ¶

func (p *TxPool) GetNonce(addr common.Address) uint64

func (*TxPool) Reset ¶

func (p *TxPool) Reset(root common.Hash) error

type WriteAheadState ¶

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

WriteAheadState is a wrapper around a DB and StateDB object that applies transactions to the StateDB and only commits them to the DB upon Commit. It also handles persisting transactions, logs, and receipts to the DB. NOT THREAD SAFE

func NewWriteAheadState ¶

func NewWriteAheadState(db ethdb.Database,
	root common.Hash,
	signer ethTypes.Signer,
	chainConfig params.ChainConfig,
	vmConfig vm.Config,
	gasLimit uint64,
	logger *logrus.Logger) (*WriteAheadState, error)

func (*WriteAheadState) ApplyTransaction ¶

func (was *WriteAheadState) ApplyTransaction(tx ethTypes.Transaction, txIndex int, blockHash common.Hash) error

func (*WriteAheadState) Commit ¶

func (was *WriteAheadState) Commit() (common.Hash, error)

func (*WriteAheadState) Reset ¶

func (was *WriteAheadState) Reset(root common.Hash) error

Source Files ¶

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