hooks

package
v1.0.38 Latest Latest
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 Go to latest Published: Nov 2, 2019 License: GPL-3.0 Imports: 9 Imported by: 0

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Index

Constants

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const NumInitCharactersForScAddress = 10

NumInitCharactersForScAddress numbers of characters for smart contract address identifier

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const ShardIdentiferLen = 2

ShardIdentiferLen number of characters for shard identifier in an address

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const VMTypeLen = 2

VMTypeLen number of characters with VMType identifier in an address, these are the last 2 characters from the initial identifier

Variables

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var ErrAddressIsInUnknownShard = errors.New("address is in unknown shard")

ErrAddressIsInUnknownShard signals that an addresses computed shard id is unknown

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var ErrAddressLengthNotCorrect = errors.New("address length is not correct")

ErrAddressLengthNotCorrect signals that an account does not have the correct address

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var ErrEmptyCode = errors.New("empty code in provided smart contract holding account")

ErrEmptyCode signals that an account does not contain code

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var ErrNotImplemented = errors.New("not implemented")

ErrNotImplemented signals that a functionality can not be used as it is not implemented

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var ErrVMTypeLengthIsNotCorrect = errors.New("vm type length is not correct")

ErrVMTypeLengthIsNotCorrect signals that the vm type length is not correct

Functions

This section is empty.

Types

type VMAccountsDB added in v1.0.3 

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

VMAccountsDB is a wrapper over AccountsAdapter that satisfy vmcommon.BlockchainHook interface

func NewVMAccountsDB added in v1.0.3 

func NewVMAccountsDB(
	accounts state.AccountsAdapter,
	addrConv state.AddressConverter,
) (*VMAccountsDB, error)

NewVMAccountsDB creates a new VMAccountsDB instance

func (*VMAccountsDB) AccountExists added in v1.0.3 

func (vadb *VMAccountsDB) AccountExists(address []byte) (bool, error)

AccountExists checks if an account exists in provided AccountAdapter

func (*VMAccountsDB) AddTempAccount added in v1.0.3 

func (vadb *VMAccountsDB) AddTempAccount(address []byte, balance *big.Int, nonce uint64)

AddTempAccount will add a temporary account in temporary store

func (*VMAccountsDB) CleanTempAccounts added in v1.0.3 

func (vadb *VMAccountsDB) CleanTempAccounts()

CleanTempAccounts cleans the map holding the temporary accounts

func (*VMAccountsDB) GetBalance added in v1.0.3 

func (vadb *VMAccountsDB) GetBalance(address []byte) (*big.Int, error)

GetBalance returns the balance of a shard account

func (*VMAccountsDB) GetBlockhash added in v1.0.3 

func (vadb *VMAccountsDB) GetBlockhash(offset *big.Int) ([]byte, error)

GetBlockhash is deprecated

func (*VMAccountsDB) GetCode added in v1.0.3 

func (vadb *VMAccountsDB) GetCode(address []byte) ([]byte, error)

GetCode retrieves the account's code

func (*VMAccountsDB) GetNonce added in v1.0.3 

func (vadb *VMAccountsDB) GetNonce(address []byte) (uint64, error)

GetNonce returns the nonce of a shard account

func (*VMAccountsDB) GetStorageData added in v1.0.3 

func (vadb *VMAccountsDB) GetStorageData(accountAddress []byte, index []byte) ([]byte, error)

GetStorageData returns the storage value of a variable held in account's data trie

func (*VMAccountsDB) IsCodeEmpty added in v1.0.3 

func (vadb *VMAccountsDB) IsCodeEmpty(address []byte) (bool, error)

IsCodeEmpty returns if the code is empty

func (*VMAccountsDB) IsInterfaceNil added in v1.0.16 

func (vadb *VMAccountsDB) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*VMAccountsDB) NewAddress added in v1.0.16 

func (vadb *VMAccountsDB) NewAddress(creatorAddress []byte, creatorNonce uint64, vmType []byte) ([]byte, error)

NewAddress is a hook which creates a new smart contract address from the creators address and nonce The address is created by applied keccak256 on the appended value off creator address and nonce Prefix mask is applied for first 8 bytes 0, and for bytes 9-10 - VM type Suffix mask is applied - last 2 bytes are for the shard ID - mask is applied as suffix mask

func (*VMAccountsDB) TempAccount added in v1.0.3 

func (vadb *VMAccountsDB) TempAccount(address []byte) state.AccountHandler

TempAccount can retrieve a temporary account from provided address

type VMCryptoHook 

type VMCryptoHook struct {
}

VMCryptoHook is a wrapper used in vm implementation

func NewVMCryptoHook 

func NewVMCryptoHook() *VMCryptoHook

NewVMCryptoHook creates a new instance of a vm crypto hook

func (*VMCryptoHook) Bn128add added in v1.0.3 

func (vmch *VMCryptoHook) Bn128add(p1 vmcommon.Bn128Point, p2 vmcommon.Bn128Point) (vmcommon.Bn128Point, error)

Bn128add is deprecated and should be removed as soon as the vmcommon interface has been updated TODO remove this when the vmcommon interface has been updated

func (*VMCryptoHook) Bn128ate added in v1.0.3 

func (vmch *VMCryptoHook) Bn128ate(l1 []vmcommon.Bn128Point, l2 []vmcommon.Bn128G2Point) (bool, error)

Bn128ate is deprecated and should be removed as soon as the vmcommon interface has been updated TODO remove this when the vmcommon interface has been updated

func (*VMCryptoHook) Bn128g2valid added in v1.0.3 

func (vmch *VMCryptoHook) Bn128g2valid(p vmcommon.Bn128G2Point) (bool, error)

Bn128g2valid is deprecated and should be removed as soon as the vmcommon interface has been updated TODO remove this when the vmcommon interface has been updated

func (*VMCryptoHook) Bn128mul added in v1.0.3 

func (vmch *VMCryptoHook) Bn128mul(k *big.Int, p vmcommon.Bn128Point) (vmcommon.Bn128Point, error)

Bn128mul is deprecated and should be removed as soon as the vmcommon interface has been updated TODO remove this when the vmcommon interface has been updated

func (*VMCryptoHook) Bn128valid added in v1.0.3 

func (vmch *VMCryptoHook) Bn128valid(p vmcommon.Bn128Point) (bool, error)

Bn128valid is deprecated and should be removed as soon as the vmcommon interface has been updated TODO remove this when the vmcommon interface has been updated

func (*VMCryptoHook) EcdsaRecover added in v1.0.3 

func (vmch *VMCryptoHook) EcdsaRecover(hash string, v *big.Int, r string, s string) (string, error)

EcdsaRecover is deprecated and should be removed as soon as the vmcommon interface has been updated TODO remove this when the vmcommon interface has been updated

func (*VMCryptoHook) Keccak256 

func (vmch *VMCryptoHook) Keccak256(str string) (string, error)

Keccak256 returns a keccak 256 hash of the input string. Should return in hex format.

func (*VMCryptoHook) Ripemd160 

func (vmch *VMCryptoHook) Ripemd160(str string) (string, error)

Ripemd160 is deprecated and should be removed as soon as the vmcommon interface has been updated TODO remove this when the vmcommon interface has been updated

func (*VMCryptoHook) Sha256 

func (vmch *VMCryptoHook) Sha256(str string) (string, error)

Sha256 returns a sha 256 hash of the input string. Should return in hex format.

Source Files

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