core

package
v1.7.2 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jan 14, 2022 License: GPL-3.0 Imports: 45 Imported by: 11

Documentation

Index

Examples

Constants

View Source 
const (
	BlockChainVersion = 3

	TimeForBanned  = 2 * time.Hour
	BannedDuration = 24 * time.Hour
)
View Source 
const (
	OFFICIAL_MINIMUM_VALIDATORS = 1
	OFFICIAL_MINIMUM_DEPOSIT    = "77000000000000000000000"
)

Variables

View Source 
var (
	// ErrKnownBlock is returned when a block to import is already known locally.
	ErrKnownBlock = errors.New("block already known")

	// ErrGasLimitReached is returned by the gas pool if the amount of gas required
	// by a transaction is higher than what's left in the block.
	ErrGasLimitReached = errors.New("gas limit reached")

	// ErrBlacklistedHash is returned if a block to import is on the blacklist.
	ErrBlacklistedHash = errors.New("blacklisted hash")

	// ErrNonceTooHigh is returned if the nonce of a transaction is higher than the
	// next one expected based on the local chain.
	ErrNonceTooHigh = errors.New("nonce too high")

	// ErrInvalidTx4 is returned if the tx4 has been checked during execution
	ErrInvalidTx4 = errors.New("invalid Tx4")

	// Delegation Error
	// ErrCancelSelfDelegate is returned if the cancel delegate apply to the self address
	ErrCancelSelfDelegate = errors.New("can not cancel self delegation")

	// ErrCannotDelegate is returned if the request address does not have deposit balance in Annual/SemiAnnual Supernode
	ErrCannotDelegate = errors.New("Annual/SemiAnnual Supernode candidate not accept new delegator")

	// ErrCannotUnbond is returned if the request address belongs to Annual/SemiAnnual Supernode
	ErrCannotUnBond = errors.New("Annual/SemiAnnual Supernode candidate can not unbond")

	// ErrDelegateAmount is returned if the delegate amount less than 0
	ErrDelegateAmount = errors.New("delegation amount can not be negative")

	// ErrInsufficientProxiedBalance is returned if the cancellation amount of executing a transaction
	// is higher than the proxied balance of the user's account.
	ErrInsufficientProxiedBalance = errors.New("cancel amount greater than your Proxied Balance")

	// ErrAlreadyCandidate is returned if the request address has become candidate already
	ErrAlreadyCandidate = errors.New("address become candidate already")

	// ErrCannotCandidate is returned if the request address belongs to Annual/SemiAnnual Supernode
	ErrCannotCandidate = errors.New("Annual/SemiAnnual Supernode can not become candidate")

	ErrMaxCandidate = errors.New("candidate number bigger than the maximum number")

	// ErrCannotUnRegister is returned if the request address belongs to Annual/SemiAnnual Supernode
	ErrCannotUnRegister = errors.New("Annual/SemiAnnual Supernode can not unregister")

	// ErrNotCandidate is returned if the request address is not a candidate
	ErrNotCandidate = errors.New("address not candidate")

	ErrBannedUnRegister = errors.New("banned candidate can not unregister")

	//ErrExceedDelegationAddressLimit is returned if delegated address number exceed the limit
	ErrExceedDelegationAddressLimit = errors.New("exceed the delegation address limit")

	// ErrMinimumRegisterAmount is returned if the request security deposit less than the minimum value
	ErrMinimumRegisterAmount = errors.New("security deposit not meet the minimum value")

	// ErrCommission is returned if the request Commission value not between 0 and 100
	ErrCommission = errors.New("commission percentage (between 0 and 100) out of range")

	// Vote Error
	// ErrVoteAmountTooLow is returned if the vote amount less than proxied delegation amount
	ErrVoteAmountTooLow = errors.New("vote amount too low")

	// ErrVoteAmountTooHight is returned if the vote amount greater than proxied amount + self amount
	ErrVoteAmountTooHight = errors.New("vote amount too high")

	// ErrNotOwner is returned if the Address not owner
	ErrNotOwner = errors.New("address not owner")

	// ErrNotAllowedInMainChain is returned if the transaction with main flag = false be sent to main chain
	ErrNotAllowedInMainChain = errors.New("transaction not allowed in main chain")

	// ErrNotAllowedInSideChain is returned if the transaction with side flag = false be sent to side chain
	ErrNotAllowedInSideChain = errors.New("transaction not allowed in side chain")
)
View Source 
var (
	// ErrInvalidSender is returned if the transaction contains an invalid signature.
	ErrInvalidSender = errors.New("invalid sender")

	ErrInvalidAddress = errors.New("invalid address")

	// ErrNonceTooLow is returned if the nonce of a transaction is lower than the
	// one present in the local chain.
	ErrNonceTooLow = errors.New("nonce too low")

	// ErrUnderpriced is returned if a transaction's gas price is below the minimum
	// configured for the transaction pool.
	ErrUnderpriced = errors.New("transaction underpriced")

	// ErrReplaceUnderpriced is returned if a transaction is attempted to be replaced
	// with a different one without the required price bump.
	ErrReplaceUnderpriced = errors.New("replacement transaction underpriced")

	// ErrInsufficientFunds is returned if the total cost of executing a transaction
	// is higher than the balance of the user's account.
	ErrInsufficientFunds = errors.New("insufficient funds for gas * price + value")

	// ErrIntrinsicGas is returned if the transaction is specified to use less gas
	// than required to start the invocation.
	ErrIntrinsicGas = errors.New("intrinsic gas too low")

	// ErrGasLimit is returned if a transaction's requested gas limit exceeds the
	// maximum allowance of the current block.
	ErrGasLimit = errors.New("exceeds block gas limit")

	// ErrNegativeValue is a sanity error to ensure noone is able to specify a
	// transaction with a negative value.
	ErrNegativeValue = errors.New("negative value")

	// ErrOversizedData is returned if the input data of a transaction is greater
	// than some meaningful limit a user might use. This is not a consensus error
	// making the transaction invalid, rather a DOS protection.
	ErrOversizedData = errors.New("oversized data")
)
View Source 
var BadHashes = map[common.Hash]bool{
	common.HexToHash("05bef30ef572270f654746da22639a7a0c97dd97a7050b9e252391996aaeb689"): true,
	common.HexToHash("7d05d08cbc596a2e5e4f13b80a743e53e09221b5323c3a61946b20873e58583f"): true,
}
View Source 
var DefaultMainnetGenesisJSON = `` /* 1667-byte string literal not displayed */
View Source 
var DefaultTestnetGenesisJSON = `` /* 848-byte string literal not displayed */
View Source 
var DefaultTxPoolConfig = TxPoolConfig{
	Journal:   "transactions.rlp",
	Rejournal: time.Hour,

	PriceLimit: 1,
	PriceBump:  10,

	AccountSlots: 16000,

	GlobalSlots:  40960,
	AccountQueue: 6400,

	GlobalQueue: 10240,

	Lifetime: 3 * time.Hour,
}

DefaultTxPoolConfig contains the default configurations for the transaction pool.

View Source 
var (
	ErrNoGenesis = errors.New("Genesis not found in chain")
)
View Source 
var TxPoolSigner types.Signer = nil

Functions

func ApplyMessage 

func ApplyMessage(evm *vm.EVM, msg Message, gp *GasPool) ([]byte, uint64, bool, error)

ApplyMessage computes the new state by applying the given message against the old state within the environment.

ApplyMessage returns the bytes returned by any EVM execution (if it took place), the gas used (which includes gas refunds) and an error if it failed. An error always indicates a core error meaning that the message would always fail for that particular state and would never be accepted within a block.

func ApplyMessageEx 

func ApplyMessageEx(evm *vm.EVM, msg Message, gp *GasPool) ([]byte, uint64, *big.Int, bool, error)

func ApplyOp 

func ApplyOp(op types.PendingOp, bc *BlockChain, cch CrossChainHelper) error

func ApplyTransaction 

func ApplyTransaction(config *params.ChainConfig, bc *BlockChain, author *common.Address, gp *GasPool, statedb *state.StateDB, header *types.Header, tx *types.Transaction, usedGas *uint64, cfg vm.Config) (*types.Receipt, uint64, error)

ApplyTransaction attempts to apply a transaction to the given state database and uses the input parameters for its environment. It returns the receipt for the transaction, gas used and an error if the transaction failed, indicating the block was invalid.

func ApplyTransactionEx 

func ApplyTransactionEx(config *params.ChainConfig, bc *BlockChain, author *common.Address, gp *GasPool, statedb *state.StateDB, ops *types.PendingOps,
	header *types.Header, tx *types.Transaction, usedGas *uint64, totalUsedMoney *big.Int, cfg vm.Config, cch CrossChainHelper, mining bool) (*types.Receipt, uint64, error)

func CalcGasLimit 

func CalcGasLimit(parent *types.Block, gasFloor, gasCeil uint64) uint64

func CanTransfer 

func CanTransfer(db vm.StateDB, addr common.Address, amount *big.Int) bool

CanTransfer checks whether there are enough funds in the address' account to make a transfer. This does not take the necessary gas in to account to make the transfer valid.

func CheckSideChainRunning 

func CheckSideChainRunning(db dbm.DB, chainId string) bool

func CreatePendingSideChainData 

func CreatePendingSideChainData(db dbm.DB, cci *CoreChainInfo)

func DeletePendingSideChainData 

func DeletePendingSideChainData(db dbm.DB, chainId string)

func GenerateChain 

func GenerateChain(config *params.ChainConfig, parent *types.Block, engine consensus.Engine, db neatdb.Database, n int, gen func(int, *BlockGen)) ([]*types.Block, []types.Receipts)

GenerateChain creates a chain of n blocks. The first block's parent will be the provided parent. db is used to store intermediate states and should contain the parent's state trie.

The generator function is called with a new block generator for every block. Any transactions and uncles added to the generator become part of the block. If gen is nil, the blocks will be empty and their coinbase will be the zero address.

Blocks created by GenerateChain do not contain valid proof of work values. Inserting them into BlockChain requires use of FakePow or a similar non-validating proof of work implementation.

Example 
var (
	key1, _ = crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
	key2, _ = crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
	key3, _ = crypto.HexToECDSA("49a7b37aa6f6645917e7b807e9d1c00d4fa71f18343b0d4122a4d2df64dd6fee")
	addr1   = crypto.PubkeyToAddress(key1.PublicKey)
	addr2   = crypto.PubkeyToAddress(key2.PublicKey)
	addr3   = crypto.PubkeyToAddress(key3.PublicKey)
	db      = rawdb.NewMemoryDatabase()
)

gspec := &Genesis{
	Config: &params.ChainConfig{HomesteadBlock: new(big.Int)},
	Alloc:  GenesisAlloc{addr1: {Balance: big.NewInt(1000000)}},
}
genesis := gspec.MustCommit(db)

signer := types.HomesteadSigner{}
chain, _ := GenerateChain(gspec.Config, genesis, nil, db, 5, func(i int, gen *BlockGen) {
	switch i {
	case 0:

		tx, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(10000), params.TxGas, nil, nil), signer, key1)
		gen.AddTx(tx)
	case 1:

		tx1, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr1), addr2, big.NewInt(1000), params.TxGas, nil, nil), signer, key1)
		tx2, _ := types.SignTx(types.NewTransaction(gen.TxNonce(addr2), addr3, big.NewInt(1000), params.TxGas, nil, nil), signer, key2)
		gen.AddTx(tx1)
		gen.AddTx(tx2)
	case 2:

		gen.SetCoinbase(addr3)
		gen.SetExtra([]byte("yeehaw"))
	case 3:

		b2 := gen.PrevBlock(1).Header()
		b2.Extra = []byte("foo")
		gen.AddUncle(b2)
		b3 := gen.PrevBlock(2).Header()
		b3.Extra = []byte("foo")
		gen.AddUncle(b3)
	}
})

blockchain, _ := NewBlockChain(db, nil, gspec.Config, nil, vm.Config{}, nil)
defer blockchain.Stop()

if i, err := blockchain.InsertChain(chain); err != nil {
	fmt.Printf("insert error (block %d): %v\n", chain[i].NumberU64(), err)
	return
}

state, _ := blockchain.State()
fmt.Printf("last block: #%d\n", blockchain.CurrentBlock().Number())
fmt.Println("balance of addr1:", state.GetBalance(addr1))
fmt.Println("balance of addr2:", state.GetBalance(addr2))
fmt.Println("balance of addr3:", state.GetBalance(addr3))

Output:

func GenesisBlockForTesting 

func GenesisBlockForTesting(db neatdb.Database, addr common.Address, balance *big.Int) *types.Block

GenesisBlockForTesting creates and writes a block in which addr has the given wei balance.

func GetApplyCb 

func GetApplyCb(function neatAbi.FunctionType) interface{}

func GetHashFn 

func GetHashFn(ref *types.Header, chain ChainContext) func(n uint64) common.Hash

GetHashFn returns a GetHashFunc which retrieves header hashes by number

func GetInsertBlockCbMap 

func GetInsertBlockCbMap() map[string]EtdInsertBlockCb

func GetSideChainForLaunch 

func GetSideChainForLaunch(db dbm.DB, height *big.Int, stateDB *state.StateDB) (readyForLaunch []string, newPendingIdxBytes []byte, deleteSideChainIds []string)

func GetSideChainIds 

func GetSideChainIds(db dbm.DB) []string

func GetValidateCb 

func GetValidateCb(function neatAbi.FunctionType) interface{}

func IntrinsicGas 

func IntrinsicGas(data []byte, contractCreation, homestead bool) (uint64, error)

IntrinsicGas computes the 'intrinsic gas' for a message with the given data.

func LoadChainGenesis 

func LoadChainGenesis(db dbm.DB, chainId string) (ethGenesis, ntcGenesis []byte)

func NewEVMContext 

func NewEVMContext(msg Message, header *types.Header, chain ChainContext, author *common.Address) vm.Context

NewEVMContext creates a new context for use in the EVM.

func ProcessPostPendingData 

func ProcessPostPendingData(db dbm.DB, newPendingIdxBytes []byte, deleteSideChainIds []string)

func RegisterApplyCb 

func RegisterApplyCb(function neatAbi.FunctionType, applyCb interface{}) error

func RegisterInsertBlockCb 

func RegisterInsertBlockCb(name string, insertBlockCb EtdInsertBlockCb) error

func RegisterValidateCb 

func RegisterValidateCb(function neatAbi.FunctionType, validateCb interface{}) error

func SaveChainGenesis 

func SaveChainGenesis(db dbm.DB, chainId string, ethGenesis, ntcGenesis []byte)

func SaveChainInfo 

func SaveChainInfo(db dbm.DB, ci *ChainInfo) error

func SaveFutureEpoch 

func SaveFutureEpoch(db dbm.DB, futureEpoch *ep.Epoch, chainId string) error

func SetReceiptsData 

func SetReceiptsData(config *params.ChainConfig, block *types.Block, receipts types.Receipts) error

func SetupGenesisBlock 

func SetupGenesisBlock(db neatdb.Database, genesis *Genesis) (*params.ChainConfig, common.Hash, error)

SetupGenesisBlock writes or updates the genesis block in db. The block that will be used is: 

                     genesis == nil       genesis != nil
                  +------------------------------------------
db has no genesis |  main-net default  |  genesis
db has genesis    |  from DB           |  genesis (if compatible)

The stored chain configuration will be updated if it is compatible (i.e. does not specify a fork block below the local head block). In case of a conflict, the error is a *params.ConfigCompatError and the new, unwritten config is returned.

The returned chain configuration is never nil.

func SetupGenesisBlockEx 

func SetupGenesisBlockEx(db neatdb.Database, genesis *Genesis) (*types.Block, error)

func SetupGenesisBlockWithDefault 

func SetupGenesisBlockWithDefault(db neatdb.Database, genesis *Genesis, isMainChain, isTestnet bool) (*params.ChainConfig, common.Hash, error)

func Transfer 

func Transfer(db vm.StateDB, sender, recipient common.Address, amount *big.Int)

Transfer subtracts amount from sender and adds amount to recipient using the given Db

func UpdatePendingSideChainData 

func UpdatePendingSideChainData(db dbm.DB, cci *CoreChainInfo)

func WriteGenesisBlock 

func WriteGenesisBlock(chainDb neatdb.Database, reader io.Reader) (*types.Block, error)

Types

type BadBlockArgs 

type BadBlockArgs struct {
	Hash   common.Hash   `json:"hash"`
	Header *types.Header `json:"header"`
}

type BlockChain 

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

func NewBlockChain 

func NewBlockChain(db neatdb.Database, cacheConfig *CacheConfig, chainConfig *params.ChainConfig, engine consensus.Engine, vmConfig vm.Config, cch CrossChainHelper) (*BlockChain, error)

func (*BlockChain) BadBlocks 

func (bc *BlockChain) BadBlocks() ([]BadBlockArgs, error)

func (*BlockChain) Config 

func (bc *BlockChain) Config() *params.ChainConfig

func (*BlockChain) CurrentBlock 

func (bc *BlockChain) CurrentBlock() *types.Block

func (*BlockChain) CurrentFastBlock 

func (bc *BlockChain) CurrentFastBlock() *types.Block

func (*BlockChain) CurrentHeader 

func (bc *BlockChain) CurrentHeader() *types.Header

func (*BlockChain) Engine 

func (bc *BlockChain) Engine() consensus.Engine

func (*BlockChain) Export 

func (bc *BlockChain) Export(w io.Writer) error

func (*BlockChain) ExportN 

func (bc *BlockChain) ExportN(w io.Writer, first uint64, last uint64) error

func (*BlockChain) FastSyncCommitHead 

func (bc *BlockChain) FastSyncCommitHead(hash common.Hash) error

func (*BlockChain) GasLimit 

func (bc *BlockChain) GasLimit() uint64

func (*BlockChain) Genesis 

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

func (*BlockChain) GetBlock 

func (bc *BlockChain) GetBlock(hash common.Hash, number uint64) *types.Block

func (*BlockChain) GetBlockByHash 

func (bc *BlockChain) GetBlockByHash(hash common.Hash) *types.Block

func (*BlockChain) GetBlockByNumber 

func (bc *BlockChain) GetBlockByNumber(number uint64) *types.Block

func (*BlockChain) GetBlockHashesFromHash 

func (bc *BlockChain) GetBlockHashesFromHash(hash common.Hash, max uint64) []common.Hash

func (*BlockChain) GetBlocksFromHash 

func (bc *BlockChain) GetBlocksFromHash(hash common.Hash, n int) (blocks []*types.Block)

func (*BlockChain) GetBody 

func (bc *BlockChain) GetBody(hash common.Hash) *types.Body

func (*BlockChain) GetBodyRLP 

func (bc *BlockChain) GetBodyRLP(hash common.Hash) rlp.RawValue

func (*BlockChain) GetCrossChainHelper 

func (bc *BlockChain) GetCrossChainHelper() CrossChainHelper

func (*BlockChain) GetHeader 

func (bc *BlockChain) GetHeader(hash common.Hash, number uint64) *types.Header

func (*BlockChain) GetHeaderByHash 

func (bc *BlockChain) GetHeaderByHash(hash common.Hash) *types.Header

func (*BlockChain) GetHeaderByNumber 

func (bc *BlockChain) GetHeaderByNumber(number uint64) *types.Header

func (*BlockChain) GetReceiptsByHash 

func (bc *BlockChain) GetReceiptsByHash(hash common.Hash) types.Receipts

func (*BlockChain) GetTd 

func (bc *BlockChain) GetTd(hash common.Hash, number uint64) *big.Int

func (*BlockChain) GetTdByHash 

func (bc *BlockChain) GetTdByHash(hash common.Hash) *big.Int

func (*BlockChain) GetUnclesInChain 

func (bc *BlockChain) GetUnclesInChain(block *types.Block, length int) []*types.Header

func (*BlockChain) HasBadBlock 

func (bc *BlockChain) HasBadBlock(hash common.Hash) bool

func (*BlockChain) HasBlock 

func (bc *BlockChain) HasBlock(hash common.Hash, number uint64) bool

func (*BlockChain) HasBlockAndState 

func (bc *BlockChain) HasBlockAndState(hash common.Hash, number uint64) bool

func (*BlockChain) HasHeader 

func (bc *BlockChain) HasHeader(hash common.Hash, number uint64) bool

func (*BlockChain) HasState 

func (bc *BlockChain) HasState(hash common.Hash) bool

func (*BlockChain) InsertChain 

func (bc *BlockChain) InsertChain(chain types.Blocks) (int, error)

func (*BlockChain) InsertHeaderChain 

func (bc *BlockChain) InsertHeaderChain(chain []*types.Header, checkFreq int) (int, error)

func (*BlockChain) InsertReceiptChain 

func (bc *BlockChain) InsertReceiptChain(blockChain types.Blocks, receiptChain []types.Receipts) (int, error)

func (*BlockChain) MuLock 

func (bc *BlockChain) MuLock()

func (*BlockChain) MuUnLock 

func (bc *BlockChain) MuUnLock()

func (*BlockChain) PostChainEvents 

func (bc *BlockChain) PostChainEvents(events []interface{}, logs []*types.Log)

func (*BlockChain) Processor 

func (bc *BlockChain) Processor() Processor

func (*BlockChain) Reset 

func (bc *BlockChain) Reset() error

func (*BlockChain) ResetWithGenesisBlock 

func (bc *BlockChain) ResetWithGenesisBlock(genesis *types.Block) error

func (*BlockChain) Rollback 

func (bc *BlockChain) Rollback(chain []common.Hash)

func (*BlockChain) SetHead 

func (bc *BlockChain) SetHead(head uint64) error

func (*BlockChain) State 

func (bc *BlockChain) State() (*state.StateDB, error)

func (*BlockChain) StateAt 

func (bc *BlockChain) StateAt(root common.Hash) (*state.StateDB, error)

func (*BlockChain) StateCache 

func (bc *BlockChain) StateCache() state.Database

func (*BlockChain) Stop 

func (bc *BlockChain) Stop()

func (*BlockChain) SubscribeChainEvent 

func (bc *BlockChain) SubscribeChainEvent(ch chan<- ChainEvent) event.Subscription

func (*BlockChain) SubscribeChainHeadEvent 

func (bc *BlockChain) SubscribeChainHeadEvent(ch chan<- ChainHeadEvent) event.Subscription

func (*BlockChain) SubscribeChainSideEvent 

func (bc *BlockChain) SubscribeChainSideEvent(ch chan<- ChainSideEvent) event.Subscription

func (*BlockChain) SubscribeCreateSideChainEvent 

func (bc *BlockChain) SubscribeCreateSideChainEvent(ch chan<- CreateSideChainEvent) event.Subscription

func (*BlockChain) SubscribeLogsEvent 

func (bc *BlockChain) SubscribeLogsEvent(ch chan<- []*types.Log) event.Subscription

func (*BlockChain) SubscribeRemovedLogsEvent 

func (bc *BlockChain) SubscribeRemovedLogsEvent(ch chan<- RemovedLogsEvent) event.Subscription

func (*BlockChain) SubscribeStartMiningEvent 

func (bc *BlockChain) SubscribeStartMiningEvent(ch chan<- StartMiningEvent) event.Subscription

func (*BlockChain) SubscribeStopMiningEvent 

func (bc *BlockChain) SubscribeStopMiningEvent(ch chan<- StopMiningEvent) event.Subscription

func (*BlockChain) TrieNode 

func (bc *BlockChain) TrieNode(hash common.Hash) ([]byte, error)

func (*BlockChain) ValidateBlock 

func (bc *BlockChain) ValidateBlock(block *types.Block) (*state.StateDB, types.Receipts, *types.PendingOps, error)

func (*BlockChain) Validator 

func (bc *BlockChain) Validator() Validator

func (*BlockChain) WriteBlockWithState 

func (bc *BlockChain) WriteBlockWithState(block *types.Block, receipts []*types.Receipt, state *state.StateDB) (status WriteStatus, err error)

func (*BlockChain) WriteBlockWithoutState 

func (bc *BlockChain) WriteBlockWithoutState(block *types.Block, td *big.Int) (err error)

type BlockGen 

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

BlockGen creates blocks for testing. See GenerateChain for a detailed explanation.

func (*BlockGen) AddTx 

func (b *BlockGen) AddTx(tx *types.Transaction)

AddTx adds a transaction to the generated block. If no coinbase has been set, the block's coinbase is set to the zero address.

AddTx panics if the transaction cannot be executed. In addition to the protocol-imposed limitations (gas limit, etc.), there are some further limitations on the content of transactions that can be added. Notably, contract code relying on the BLOCKHASH instruction will panic during execution.

func (*BlockGen) AddTxWithChain 

func (b *BlockGen) AddTxWithChain(bc *BlockChain, tx *types.Transaction)

AddTxWithChain adds a transaction to the generated block. If no coinbase has been set, the block's coinbase is set to the zero address.

AddTxWithChain panics if the transaction cannot be executed. In addition to the protocol-imposed limitations (gas limit, etc.), there are some further limitations on the content of transactions that can be added. If contract code relies on the BLOCKHASH instruction, the block in chain will be returned.

func (*BlockGen) AddUncheckedReceipt 

func (b *BlockGen) AddUncheckedReceipt(receipt *types.Receipt)

AddUncheckedReceipt forcefully adds a receipts to the block without a backing transaction.

AddUncheckedReceipt will cause consensus failures when used during real chain processing. This is best used in conjunction with raw block insertion.

func (*BlockGen) AddUncle 

func (b *BlockGen) AddUncle(h *types.Header)

AddUncle adds an uncle header to the generated block.

func (*BlockGen) Number 

func (b *BlockGen) Number() *big.Int

Number returns the block number of the block being generated.

func (*BlockGen) OffsetTime 

func (b *BlockGen) OffsetTime(seconds int64)

OffsetTime modifies the time instance of a block, implicitly changing its associated difficulty. It's useful to test scenarios where forking is not tied to chain length directly.

func (*BlockGen) PrevBlock 

func (b *BlockGen) PrevBlock(index int) *types.Block

PrevBlock returns a previously generated block by number. It panics if num is greater or equal to the number of the block being generated. For index -1, PrevBlock returns the parent block given to GenerateChain.

func (*BlockGen) SetCoinbase 

func (b *BlockGen) SetCoinbase(addr common.Address)

SetCoinbase sets the coinbase of the generated block. It can be called at most once.

func (*BlockGen) SetExtra 

func (b *BlockGen) SetExtra(data []byte)

SetExtra sets the extra data field of the generated block.

func (*BlockGen) TxNonce 

func (b *BlockGen) TxNonce(addr common.Address) uint64

TxNonce returns the next valid transaction nonce for the account at addr. It panics if the account does not exist.

type BlockValidator 

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

func NewBlockValidator 

func NewBlockValidator(config *params.ChainConfig, blockchain *BlockChain, engine consensus.Engine) *BlockValidator

func (*BlockValidator) ValidateBody 

func (v *BlockValidator) ValidateBody(block *types.Block) error

func (*BlockValidator) ValidateState 

func (v *BlockValidator) ValidateState(block *types.Block, statedb *state.StateDB, receipts types.Receipts, usedGas uint64) error

type CacheConfig 

type CacheConfig struct {
	TrieCleanLimit int

	TrieDirtyLimit    int
	TrieDirtyDisabled bool
	TrieTimeLimit     time.Duration
}

type ChainContext 

type ChainContext interface {
	// Engine retrieves the chain's consensus engine.
	Engine() consensus.Engine

	// GetHeader returns the hash corresponding to their hash.
	GetHeader(common.Hash, uint64) *types.Header
}

ChainContext supports retrieving headers and consensus parameters from the current blockchain to be used during transaction processing.

type ChainEvent 

type ChainEvent struct {
	Block *types.Block
	Hash  common.Hash
	Logs  []*types.Log
}

type ChainHeadEvent 

type ChainHeadEvent struct{ Block *types.Block }

type ChainIndexer 

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

func NewChainIndexer 

func NewChainIndexer(chainDb, indexDb neatdb.Database, backend ChainIndexerBackend, section, confirm uint64, throttling time.Duration, kind string) *ChainIndexer

func (*ChainIndexer) AddChildIndexer 

func (c *ChainIndexer) AddChildIndexer(indexer *ChainIndexer)

func (*ChainIndexer) AddKnownSectionHead 

func (c *ChainIndexer) AddKnownSectionHead(section uint64, shead common.Hash)

func (*ChainIndexer) Close 

func (c *ChainIndexer) Close() error

func (*ChainIndexer) SectionHead 

func (c *ChainIndexer) SectionHead(section uint64) common.Hash

func (*ChainIndexer) Sections 

func (c *ChainIndexer) Sections() (uint64, uint64, common.Hash)

func (*ChainIndexer) Start 

func (c *ChainIndexer) Start(chain ChainIndexerChain)

type ChainIndexerBackend 

type ChainIndexerBackend interface {
	Reset(section uint64, prevHead common.Hash) error

	Process(header *types.Header)

	Commit() error
}

type ChainIndexerChain 

type ChainIndexerChain interface {
	CurrentHeader() *types.Header

	SubscribeChainEvent(ch chan<- ChainEvent) event.Subscription
}

type ChainInfo 

type ChainInfo struct {
	CoreChainInfo

	Epoch *ep.Epoch
}

func GetChainInfo 

func GetChainInfo(db dbm.DB, chainId string) *ChainInfo

func (*ChainInfo) GetEpochByBlockNumber 

func (ci *ChainInfo) GetEpochByBlockNumber(blockNumber uint64) *ep.Epoch

type ChainSideEvent 

type ChainSideEvent struct {
	Block *types.Block
}

type CoreChainInfo 

type CoreChainInfo struct {
	Owner   common.Address
	ChainId string

	MinValidators    uint16
	MinDepositAmount *big.Int
	StartBlock       *big.Int
	EndBlock         *big.Int

	JoinedValidators []JoinedValidator

	EpochNumber uint64

	DepositInMainChain    *big.Int
	DepositInSideChain    *big.Int
	WithdrawFromSideChain *big.Int
	WithdrawFromMainChain *big.Int
	// contains filtered or unexported fields
}

func GetPendingSideChainData 

func GetPendingSideChainData(db dbm.DB, chainId string) *CoreChainInfo

func (*CoreChainInfo) TotalDeposit 

func (cci *CoreChainInfo) TotalDeposit() *big.Int

type CreateSideChainEvent 

type CreateSideChainEvent struct {
	ChainId string
}

Create Side Chain Event

type CrossChainApplyCb 

type CrossChainApplyCb = func(tx *types.Transaction, state *state.StateDB, ops *types.PendingOps, cch CrossChainHelper, mining bool) error

type CrossChainHelper 

type CrossChainHelper interface {
	GetMutex() *sync.Mutex
	GetClient() *neatcli.Client
	GetMainChainId() string
	GetChainInfoDB() dbm.DB

	CanCreateSideChain(from common.Address, chainId string, minValidators uint16, minDepositAmount, startupCost *big.Int, startBlock, endBlock *big.Int) error
	CreateSideChain(from common.Address, chainId string, minValidators uint16, minDepositAmount *big.Int, startBlock, endBlock *big.Int) error
	ValidateJoinSideChain(from common.Address, pubkey []byte, chainId string, depositAmount *big.Int, signature []byte) error
	JoinSideChain(from common.Address, pubkey crypto.PubKey, chainId string, depositAmount *big.Int) error
	ReadyForLaunchSideChain(height *big.Int, stateDB *state.StateDB) ([]string, []byte, []string)
	ProcessPostPendingData(newPendingIdxBytes []byte, deleteSideChainIds []string)

	VoteNextEpoch(ep *epoch.Epoch, from common.Address, voteHash common.Hash, txHash common.Hash) error
	RevealVote(ep *epoch.Epoch, from common.Address, pubkey crypto.PubKey, depositAmount *big.Int, salt string, txHash common.Hash) error
	UpdateNextEpoch(ep *epoch.Epoch, from common.Address, pubkey crypto.PubKey, depositAmount *big.Int, salt string, txHash common.Hash) error

	GetHeightFromMainChain() *big.Int
	GetEpochFromMainChain() (string, *epoch.Epoch)
	GetTxFromMainChain(txHash common.Hash) *types.Transaction

	ChangeValidators(chainId string)

	// for epoch only
	VerifySideChainProofData(bs []byte) error
	SaveSideChainProofDataToMainChain(bs []byte) error

	TX3LocalCache
	ValidateTX3ProofData(proofData *types.TX3ProofData) error
	ValidateTX4WithInMemTX3ProofData(tx4 *types.Transaction, tx3ProofData *types.TX3ProofData) error
}

type CrossChainValidateCb 

type CrossChainValidateCb = func(tx *types.Transaction, state *state.StateDB, cch CrossChainHelper) error

CrossChain Callback

type DeleteCallback 

type DeleteCallback func(neatdb.Writer, common.Hash, uint64)

DeleteCallback is a callback function that is called by SetHead before each header is deleted.

type EtdInsertBlockCb 

type EtdInsertBlockCb func(bc *BlockChain, block *types.Block)

func GetInsertBlockCb 

func GetInsertBlockCb(name string) EtdInsertBlockCb

type GasPool 

type GasPool uint64

GasPool tracks the amount of gas available during execution of the transactions in a block. The zero value is a pool with zero gas available.

func (*GasPool) AddGas 

func (gp *GasPool) AddGas(amount uint64) *GasPool

AddGas makes gas available for execution.

func (*GasPool) Gas 

func (gp *GasPool) Gas() uint64

Gas returns the amount of gas remaining in the pool.

func (*GasPool) String 

func (gp *GasPool) String() string

func (*GasPool) SubGas 

func (gp *GasPool) SubGas(amount uint64) error

SubGas deducts the given amount from the pool if enough gas is available and returns an error otherwise.

type Genesis 

type Genesis struct {
	Config     *params.ChainConfig `json:"config"`
	Nonce      uint64              `json:"nonce"`
	Timestamp  uint64              `json:"timestamp"`
	ExtraData  []byte              `json:"extraData"`
	GasLimit   uint64              `json:"gasLimit"   gencodec:"required"`
	Difficulty *big.Int            `json:"difficulty" gencodec:"required"`
	Mixhash    common.Hash         `json:"mixHash"`
	Coinbase   common.Address      `json:"coinbase"`
	Alloc      GenesisAlloc        `json:"alloc"      gencodec:"required"`

	// These fields are used for consensus tests. Please don't use them
	// in actual genesis blocks.
	Number     uint64      `json:"number"`
	GasUsed    uint64      `json:"gasUsed"`
	ParentHash common.Hash `json:"parentHash"`
}

Genesis specifies the header fields, state of a genesis block. It also defines hard fork switch-over blocks through the chain configuration.

func DefaultGenesisBlock 

func DefaultGenesisBlock() *Genesis

DefaultGenesisBlock returns the Ethereum main net genesis block.

func DefaultGenesisBlockFromJson 

func DefaultGenesisBlockFromJson(genesisJson string) *Genesis

func DefaultTestnetGenesisBlock 

func DefaultTestnetGenesisBlock() *Genesis

DefaultTestnetGenesisBlock returns the Ropsten network genesis block.

func (*Genesis) Commit 

func (g *Genesis) Commit(db neatdb.Database) (*types.Block, error)

Commit writes the block and state of a genesis specification to the database. The block is committed as the canonical head block.

func (Genesis) MarshalJSON 

func (g Genesis) MarshalJSON() ([]byte, error)

func (*Genesis) MustCommit 

func (g *Genesis) MustCommit(db neatdb.Database) *types.Block

MustCommit writes the genesis block and state to db, panicking on error. The block is committed as the canonical head block.

func (*Genesis) ToBlock 

func (g *Genesis) ToBlock(db neatdb.Database) *types.Block

ToBlock creates the genesis block and writes state of a genesis specification to the given database (or discards it if nil).

func (*Genesis) UnmarshalJSON 

func (g *Genesis) UnmarshalJSON(input []byte) error

type GenesisAccount 

type GenesisAccount struct {
	Code    []byte                      `json:"code,omitempty"`
	Storage map[common.Hash]common.Hash `json:"storage,omitempty"`
	Balance *big.Int                    `json:"balance" gencodec:"required"`
	Nonce   uint64                      `json:"nonce,omitempty"`

	// Stack
	Amount *big.Int `json:"amount,omitempty"`
	// Delegate
	DelegateBalance *big.Int `json:"delegate,omitempty"`
	// Proxied Balance
	DepositProxiedDetail map[common.Address]*big.Int `json:"proxiedList,omitempty"`
	// Candidate
	Candidate  bool  `json:"candidate,omitempty"`
	Commission uint8 `json:"commission,omitempty"`

	PrivateKey []byte `json:"secretKey,omitempty"` // for tests
}

GenesisAccount is an account in the state of the genesis block.

func (GenesisAccount) MarshalJSON 

func (g GenesisAccount) MarshalJSON() ([]byte, error)

func (*GenesisAccount) UnmarshalJSON 

func (g *GenesisAccount) UnmarshalJSON(input []byte) error

type GenesisAlloc 

type GenesisAlloc map[common.Address]GenesisAccount

GenesisAlloc specifies the initial state that is part of the genesis block.

func (*GenesisAlloc) UnmarshalJSON 

func (ga *GenesisAlloc) UnmarshalJSON(data []byte) error

type GenesisAllocWrite 

type GenesisAllocWrite map[string]GenesisAccount

type GenesisMismatchError 

type GenesisMismatchError struct {
	Stored, New common.Hash
}

GenesisMismatchError is raised when trying to overwrite an existing genesis block with an incompatible one.

func (*GenesisMismatchError) Error 

func (e *GenesisMismatchError) Error() string

type GenesisWrite 

type GenesisWrite struct {
	Config     *params.ChainConfig `json:"config"`
	Nonce      uint64              `json:"nonce"`
	Timestamp  uint64              `json:"timestamp"`
	ExtraData  []byte              `json:"extraData"`
	GasLimit   uint64              `json:"gasLimit"   gencodec:"required"`
	Difficulty *big.Int            `json:"difficulty" gencodec:"required"`
	Mixhash    common.Hash         `json:"mixHash"`
	Coinbase   string              `json:"coinbase"`
	Alloc      GenesisAllocWrite   `json:"alloc"      gencodec:"required"`

	// These fields are used for consensus tests. Please don't use them
	// in actual genesis blocks.
	Number     uint64      `json:"number"`
	GasUsed    uint64      `json:"gasUsed"`
	ParentHash common.Hash `json:"parentHash"`
}

func (GenesisWrite) MarshalJSON 

func (g GenesisWrite) MarshalJSON() ([]byte, error)

func (*GenesisWrite) UnmarshalJSON 

func (g *GenesisWrite) UnmarshalJSON(input []byte) error

type HeaderChain 

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

HeaderChain implements the basic block header chain logic that is shared by core.BlockChain and light.LightChain. It is not usable in itself, only as a part of either structure. It is not thread safe either, the encapsulating chain structures should do the necessary mutex locking/unlocking.

func NewHeaderChain 

func NewHeaderChain(chainDb neatdb.Database, config *params.ChainConfig, engine consensus.Engine, procInterrupt func() bool) (*HeaderChain, error)

NewHeaderChain creates a new HeaderChain structure. 

getValidator should return the parent's validator
procInterrupt points to the parent's interrupt semaphore
wg points to the parent's shutdown wait group

func (*HeaderChain) Config 

func (hc *HeaderChain) Config() *params.ChainConfig

Config retrieves the header chain's chain configuration.

func (*HeaderChain) CurrentBlock 

func (hc *HeaderChain) CurrentBlock() *types.Block

CurrentBlock implements consensus.ChainReader, and returns nil for every input as /a header chain does not have blocks available for retrieval.

func (*HeaderChain) CurrentHeader 

func (hc *HeaderChain) CurrentHeader() *types.Header

CurrentHeader retrieves the current head header of the canonical chain. The header is retrieved from the HeaderChain's internal cache.

func (*HeaderChain) Engine 

func (hc *HeaderChain) Engine() consensus.Engine

Engine retrieves the header chain's consensus engine.

func (*HeaderChain) GetBlock 

func (hc *HeaderChain) GetBlock(hash common.Hash, number uint64) *types.Block

GetBlock implements consensus.ChainReader, and returns nil for every input as a header chain does not have blocks available for retrieval.

func (*HeaderChain) GetBlockByNumber 

func (hc *HeaderChain) GetBlockByNumber(number uint64) *types.Block

GetBlockByNumber implements consensus.ChainReader, and returns nil for every input as a header chain does not have blocks available for retrieval.

func (*HeaderChain) GetBlockHashesFromHash 

func (hc *HeaderChain) GetBlockHashesFromHash(hash common.Hash, max uint64) []common.Hash

GetBlockHashesFromHash retrieves a number of block hashes starting at a given hash, fetching towards the genesis block.

func (*HeaderChain) GetBlockNumber 

func (hc *HeaderChain) GetBlockNumber(hash common.Hash) *uint64

GetBlockNumber retrieves the block number belonging to the given hash from the cache or database

func (*HeaderChain) GetHeader 

func (hc *HeaderChain) GetHeader(hash common.Hash, number uint64) *types.Header

GetHeader retrieves a block header from the database by hash and number, caching it if found.

func (*HeaderChain) GetHeaderByHash 

func (hc *HeaderChain) GetHeaderByHash(hash common.Hash) *types.Header

GetHeaderByHash retrieves a block header from the database by hash, caching it if found.

func (*HeaderChain) GetHeaderByNumber 

func (hc *HeaderChain) GetHeaderByNumber(number uint64) *types.Header

GetHeaderByNumber retrieves a block header from the database by number, caching it (associated with its hash) if found.

func (*HeaderChain) GetTd 

func (hc *HeaderChain) GetTd(hash common.Hash, number uint64) *big.Int

GetTd retrieves a block's total difficulty in the canonical chain from the database by hash and number, caching it if found.

func (*HeaderChain) GetTdByHash 

func (hc *HeaderChain) GetTdByHash(hash common.Hash) *big.Int

GetTdByHash retrieves a block's total difficulty in the canonical chain from the database by hash, caching it if found.

func (*HeaderChain) HasHeader 

func (hc *HeaderChain) HasHeader(hash common.Hash, number uint64) bool

HasHeader checks if a block header is present in the database or not.

func (*HeaderChain) InsertHeaderChain 

func (hc *HeaderChain) InsertHeaderChain(chain []*types.Header, writeHeader WhCallback, start time.Time) (int, error)

InsertHeaderChain attempts to insert the given header chain in to the local chain, possibly creating a reorg. If an error is returned, it will return the index number of the failing header as well an error describing what went wrong.

The verify parameter can be used to fine tune whether nonce verification should be done or not. The reason behind the optional check is because some of the header retrieval mechanisms already need to verfy nonces, as well as because nonces can be verified sparsely, not needing to check each.

func (*HeaderChain) SetCurrentHeader 

func (hc *HeaderChain) SetCurrentHeader(head *types.Header)

SetCurrentHeader sets the current head header of the canonical chain.

func (*HeaderChain) SetGenesis 

func (hc *HeaderChain) SetGenesis(head *types.Header)

SetGenesis sets a new genesis block header for the chain

func (*HeaderChain) SetHead 

func (hc *HeaderChain) SetHead(head uint64, delFn DeleteCallback)

SetHead rewinds the local chain to a new head. Everything above the new head will be deleted and the new one set.

func (*HeaderChain) State 

func (hc *HeaderChain) State() (*state.StateDB, error)

State implements consensus.ChainReader, and return nil for every input a

func (*HeaderChain) ValidateHeaderChain 

func (hc *HeaderChain) ValidateHeaderChain(chain []*types.Header, checkFreq int) (int, error)

func (*HeaderChain) WriteHeader 

func (hc *HeaderChain) WriteHeader(header *types.Header) (status WriteStatus, err error)

WriteHeader writes a header into the local chain, given that its parent is already known. If the total difficulty of the newly inserted header becomes greater than the current known TD, the canonical chain is re-routed.

Note: This method is not concurrent-safe with inserting blocks simultaneously into the chain, as side effects caused by reorganisations cannot be emulated without the real blocks. Hence, writing headers directly should only be done in two scenarios: pure-header mode of operation (light clients), or properly separated header/block phases (non-archive clients).

func (*HeaderChain) WriteTd 

func (hc *HeaderChain) WriteTd(hash common.Hash, number uint64, td *big.Int) error

WriteTd stores a block's total difficulty into the database, also caching it along the way.

type JoinedValidator 

type JoinedValidator struct {
	PubKey        crypto.PubKey
	Address       common.Address
	DepositAmount *big.Int
}

type Message 

type Message interface {
	From() common.Address
	//FromFrontier() (common.Address, error)
	To() *common.Address

	GasPrice() *big.Int
	Gas() uint64
	Value() *big.Int

	Nonce() uint64
	CheckNonce() bool
	Data() []byte
}

Message represents a message sent to a contract.

type NewMinedBlockEvent 

type NewMinedBlockEvent struct{ Block *types.Block }

NewMinedBlockEvent is posted when a block has been imported.

type NonCrossChainApplyCb 

type NonCrossChainApplyCb = func(tx *types.Transaction, state *state.StateDB, bc *BlockChain, ops *types.PendingOps) error

type NonCrossChainValidateCb 

type NonCrossChainValidateCb = func(tx *types.Transaction, state *state.StateDB, bc *BlockChain) error

Non-CrossChain Callback

type PendingLogsEvent 

type PendingLogsEvent struct {
	Logs []*types.Log
}

PendingLogsEvent is posted pre mining and notifies of pending logs.

type PendingStateEvent 

type PendingStateEvent struct{}

PendingStateEvent is posted pre mining and notifies of pending state changes.

type Processor 

type Processor interface {
	Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, uint64, *types.PendingOps, error)
}

Processor is an interface for processing blocks using a given initial state.

Process takes the block to be processed and the statedb upon which the initial state is based. It should return the receipts generated, amount of gas used in the process and return an error if any of the internal rules failed.

type RemovedLogsEvent 

type RemovedLogsEvent struct{ Logs []*types.Log }

RemovedLogsEvent is posted when a reorg happens

type RemovedTransactionEvent 

type RemovedTransactionEvent struct{ Txs types.Transactions }

RemovedTransactionEvent is posted when a reorg happens

type StartMiningEvent 

type StartMiningEvent struct{}

Start Mining Event

type StateProcessor 

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

StateProcessor is a basic Processor, which takes care of transitioning state from one point to another.

StateProcessor implements Processor.

func NewStateProcessor 

func NewStateProcessor(config *params.ChainConfig, bc *BlockChain, engine consensus.Engine, cch CrossChainHelper) *StateProcessor

NewStateProcessor initialises a new StateProcessor.

func (*StateProcessor) Process 

func (p *StateProcessor) Process(block *types.Block, statedb *state.StateDB, cfg vm.Config) (types.Receipts, []*types.Log, uint64, *types.PendingOps, error)

Process processes the state changes according to the Ethereum rules by running the transaction messages using the statedb and applying any rewards to both the processor (coinbase) and any included uncles.

Process returns the receipts and logs accumulated during the process and returns the amount of gas that was used in the process. If any of the transactions failed to execute due to insufficient gas it will return an error.

type StateTransition 

type StateTransition struct {
	// 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 gas 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(evm *vm.EVM, msg Message, gp *GasPool) *StateTransition

NewStateTransition initialises and returns a new state transition object.

func (*StateTransition) TransitionDb 

func (st *StateTransition) TransitionDb() (ret []byte, usedGas uint64, failed bool, err error)

TransitionDb will transition the state by applying the current message and returning the result including the the used gas. It returns an error if it failed. An error indicates a consensus issue.

func (*StateTransition) TransitionDbEx 

func (st *StateTransition) TransitionDbEx() (ret []byte, usedGas uint64, usedMoney *big.Int, failed bool, err error)

type StopMiningEvent 

type StopMiningEvent struct{}

Stop Mining Event

type TX3LocalCache 

type TX3LocalCache interface {
	GetTX3(chainId string, txHash common.Hash) *types.Transaction
	DeleteTX3(chainId string, txHash common.Hash)

	WriteTX3ProofData(proofData *types.TX3ProofData) error

	GetTX3ProofData(chainId string, txHash common.Hash) *types.TX3ProofData
	GetAllTX3ProofData() []*types.TX3ProofData
}

type Tx3ProofDataEvent 

type Tx3ProofDataEvent struct{ Tx3PrfDt *types.TX3ProofData }

Tx3ProofDataEvent is posted when a tx3ProofData enters

type TxPool 

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

TxPool contains all currently known transactions. Transactions enter the pool when they are received from the network or submitted locally. They exit the pool when they are included in the blockchain.

The pool separates processable transactions (which can be applied to the current state) and future transactions. Transactions move between those two states over time as they are received and processed.

func NewTxPool 

func NewTxPool(config TxPoolConfig, chainconfig *params.ChainConfig, chain blockChain, cch CrossChainHelper) *TxPool

NewTxPool creates a new transaction pool to gather, sort and filter inbound transactions from the network.

func (*TxPool) AddLocal 

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

AddLocal enqueues a single transaction into the pool if it is valid, marking the sender as a local one in the mean time, ensuring it goes around the local pricing constraints.

func (*TxPool) AddLocals 

func (pool *TxPool) AddLocals(txs []*types.Transaction) []error

AddLocals enqueues a batch of transactions into the pool if they are valid, marking the senders as a local ones in the mean time, ensuring they go around the local pricing constraints.

func (*TxPool) AddRemote 

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

AddRemote enqueues a single transaction into the pool if it is valid. If the sender is not among the locally tracked ones, full pricing constraints will apply.

func (*TxPool) AddRemotes 

func (pool *TxPool) AddRemotes(txs []*types.Transaction) []error

AddRemotes enqueues a batch of transactions into the pool if they are valid. If the senders are not among the locally tracked ones, full pricing constraints will apply.

func (*TxPool) Content 

func (pool *TxPool) Content() (map[common.Address]types.Transactions, map[common.Address]types.Transactions)

Content retrieves the data content of the transaction pool, returning all the pending as well as queued transactions, grouped by account and sorted by nonce.

func (*TxPool) GasPrice 

func (pool *TxPool) GasPrice() *big.Int

GasPrice returns the current gas price enforced by the transaction pool.

func (*TxPool) Get 

func (pool *TxPool) Get(hash common.Hash) *types.Transaction

Get returns a transaction if it is contained in the pool and nil otherwise.

func (*TxPool) Pending 

func (pool *TxPool) Pending() (map[common.Address]types.Transactions, error)

Pending retrieves all currently processable transactions, groupped by origin account and sorted by nonce. The returned transaction set is a copy and can be freely modified by calling code.

func (*TxPool) RemoveTxs 

func (pool *TxPool) RemoveTxs(txs types.Transactions)

RemoveTxs remove transaction due to validate failed during mining (commit transaction) (eg: tx4 validate pass when addtx but failed during executing, because tx4 can be validated only when tx3 proof available in local tx3 db)

func (*TxPool) SetGasPrice 

func (pool *TxPool) SetGasPrice(price *big.Int)

SetGasPrice updates the minimum price required by the transaction pool for a new transaction, and drops all transactions below this threshold.

func (*TxPool) State 

func (pool *TxPool) State() *state.ManagedState

State returns the virtual managed state of the transaction pool.

func (*TxPool) Stats 

func (pool *TxPool) Stats() (int, int)

Stats retrieves the current pool stats, namely the number of pending and the number of queued (non-executable) transactions.

func (*TxPool) Status 

func (pool *TxPool) Status(hashes []common.Hash) []TxStatus

Status returns the status (unknown/pending/queued) of a batch of transactions identified by their hashes.

func (*TxPool) Stop 

func (pool *TxPool) Stop()

Stop terminates the transaction pool.

func (*TxPool) SubscribeTxPreEvent 

func (pool *TxPool) SubscribeTxPreEvent(ch chan<- TxPreEvent) event.Subscription

SubscribeTxPreEvent registers a subscription of TxPreEvent and starts sending event to the given channel.

type TxPoolConfig 

type TxPoolConfig struct {
	NoLocals  bool          // Whether local transaction handling should be disabled
	Journal   string        // Journal of local transactions to survive node restarts
	Rejournal time.Duration // Time interval to regenerate the local transaction journal

	PriceLimit uint64 // Minimum gas price to enforce for acceptance into the pool
	PriceBump  uint64 // Minimum price bump percentage to replace an already existing transaction (nonce)

	AccountSlots uint64 // Minimum number of executable transaction slots guaranteed per account
	GlobalSlots  uint64 // Maximum number of executable transaction slots for all accounts
	AccountQueue uint64 // Maximum number of non-executable transaction slots permitted per account
	GlobalQueue  uint64 // Maximum number of non-executable transaction slots for all accounts

	Lifetime time.Duration // Maximum amount of time non-executable transaction are queued
}

TxPoolConfig are the configuration parameters of the transaction pool.

type TxPreEvent 

type TxPreEvent struct{ Tx *types.Transaction }

TxPreEvent is posted when a transaction enters the transaction pool.

type TxStatus 

type TxStatus uint

TxStatus is the current status of a transaction as seen by the pool. 

const (
	TxStatusUnknown TxStatus = iota
	TxStatusQueued
	TxStatusPending
	TxStatusIncluded
)

type Validator 

type Validator interface {
	// ValidateBody validates the given block's content.
	ValidateBody(block *types.Block) error

	// ValidateState validates the given statedb and optionally the receipts and
	// gas used.
	ValidateState(block *types.Block, state *state.StateDB, receipts types.Receipts, usedGas uint64) error
}

Validator is an interface which defines the standard for block validation. It is only responsible for validating block contents, as the header validation is done by the specific consensus engines.

type WhCallback 

type WhCallback func(*types.Header) error

WhCallback is a callback function for inserting individual headers. A callback is used for two reasons: first, in a LightChain, status should be processed and light chain events sent, while in a BlockChain this is not necessary since chain events are sent after inserting blocks. Second, the header writes should be protected by the parent chain mutex individually.

type WriteStatus 

type WriteStatus byte
const (
	NonStatTy WriteStatus = iota
	CanonStatTy
	SideStatTy
)

Source Files

View all Source files

Directories

Path Synopsis
Provides support for dealing with EVM assembly instructions (e.g., disassembling them).
 Provides support for dealing with EVM assembly instructions (e.g., disassembling them).
Package bloombits implements bloom filtering on batches of data.
 Package bloombits implements bloom filtering on batches of data.
Package rawdb contains a collection of low level database accessors.
 Package rawdb contains a collection of low level database accessors.
Package state provides a caching layer atop the NEAT Blockchain state trie.
 Package state provides a caching layer atop the NEAT Blockchain state trie.
vm
Package vm implements the Ethereum Virtual Machine.
 Package vm implements the Ethereum Virtual Machine.
runtime
Package runtime provides a basic execution model for executing EVM code.
 Package runtime provides a basic execution model for executing EVM code.

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