common

package
v0.9.0 Latest Latest
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 Go to latest Published: Sep 26, 2019 License: GPL-3.0 Imports: 23 Imported by: 0

Documentation

Overview

Package common contains various helper functions.

Index

Constants

View Source 
const (
	// HashLength is the expected length of the hash
	HashLength = 32
	// AddressLength is the expected length of the address
	AddressLength = 20

	BlockConfirmSignLength = 65
)

Lengths of hashes and addresses in bytes.

Variables

View Source 
var (
	Big1   = big.NewInt(1)
	Big2   = big.NewInt(2)
	Big3   = big.NewInt(3)
	Big0   = big.NewInt(0)
	Big32  = big.NewInt(32)
	Big256 = big.NewInt(256)
	Big257 = big.NewInt(257)
)

Common big integers often used

View Source 
var (
	SystemContractList = []string{
		"__sys_NodeManager",
		"__sys_NodeRegister",
		"__sys_UserRegister",
		"__sys_UserManager",
		"__sys_ParamManager",
		"__sys_RoleManager",
		"__sys_RoleRegister"}
)

Functions

func AbsolutePath 

func AbsolutePath(datadir string, filename string) string

AbsolutePath returns datadir + filename, or filename if it is absolute.

func BoolToBytes 

func BoolToBytes(b bool) []byte

func Bytes2Hex 

func Bytes2Hex(d []byte) string

Bytes2Hex returns the hexadecimal encoding of d.

func BytesCombine 

func BytesCombine(pBytes ...[]byte) []byte

func BytesToFloat32 

func BytesToFloat32(bytes []byte) float32

func BytesToFloat64 

func BytesToFloat64(bytes []byte) float64

func BytesToInt32 

func BytesToInt32(b []byte) int32

func BytesToInt64 

func BytesToInt64(b []byte) int64

func CallResAsBool 

func CallResAsBool(bts []byte) bool

func CallResAsInt32 

func CallResAsInt32(bts []byte) int32

func CallResAsInt64 

func CallResAsInt64(bts []byte) int64

func CallResAsString 

func CallResAsString(bts []byte) string

func CallResAsUint64 

func CallResAsUint64(bts []byte) uint64

func CopyBytes 

func CopyBytes(b []byte) (copiedBytes []byte)

CopyBytes returns an exact copy of the provided bytes.

func CurrentGoRoutineID 

func CurrentGoRoutineID() string

func EmptyHash 

func EmptyHash(h Hash) bool

func ErrPrintln 

func ErrPrintln(a ...interface{})

func FileExist 

func FileExist(filePath string) bool

FileExist checks if a file exists at filePath.

func Float32ToBytes 

func Float32ToBytes(float float32) []byte

func Float64ToBytes 

func Float64ToBytes(float float64) []byte

func FromHex 

func FromHex(s string) []byte

FromHex returns the bytes represented by the hexadecimal string s. s may be prefixed with "0x".

func GenCallData 

func GenCallData(funcName string, params []interface{}) []byte

func GetCurrentInterpreterType 

func GetCurrentInterpreterType() string

func Hex2Bytes 

func Hex2Bytes(str string) []byte

Hex2Bytes returns the bytes represented by the hexadecimal string str.

func Hex2BytesFixed 

func Hex2BytesFixed(str string, flen int) []byte

Hex2BytesFixed returns bytes of a specified fixed length flen.

func InitSystemconfig 

func InitSystemconfig(root NodeInfo)

func InnerCall 

func InnerCall(conAddr Address, funcName string, params []interface{}) ([]byte, error)

func Int16ToBytes 

func Int16ToBytes(n int16) []byte

func Int32ToBytes 

func Int32ToBytes(n int32) []byte

func Int64ToBytes 

func Int64ToBytes(n int64) []byte

func Int8ToBytes 

func Int8ToBytes(n int8) []byte

func IntToBytes 

func IntToBytes(n int) []byte

func IsHexAddress 

func IsHexAddress(s string) bool

IsHexAddress verifies whether a string can represent a valid hex-encoded Ethereum address or not.

func IsHexZeroAddress 

func IsHexZeroAddress(s string) bool

IsZeroAddress compare

func LeftPadBytes 

func LeftPadBytes(slice []byte, l int) []byte

LeftPadBytes zero-pads slice to the left up to length l.

func LoadJSON 

func LoadJSON(file string, val interface{}) error

LoadJSON reads the given file and unmarshals its content.

func MakeName 

func MakeName(name, version string) string

MakeName creates a node name that follows the ethereum convention for such names. It adds the operation system name and Go runtime version the name.

func PaddingLeft 

func PaddingLeft(src []byte, bytes int) []byte

func PrintDepricationWarning 

func PrintDepricationWarning(str string)

PrintDepricationWarning prinst the given string in a box using fmt.Println.

func Report 

func Report(extra ...interface{})

Report gives off a warning requesting the user to submit an issue to the github tracker.

func RightPadBytes 

func RightPadBytes(slice []byte, l int) []byte

RightPadBytes zero-pads slice to the right up to length l.

func SetCurrentInterpreterType 

func SetCurrentInterpreterType(cit string)

func SetInnerCallFunc 

func SetInnerCallFunc(f func(Address, []byte) ([]byte, error))

func SetSysContractCallFunc 

func SetSysContractCallFunc(f func(*SystemConfig))

func ToBytes 

func ToBytes(source interface{}) ([]byte, error)

func ToHex deprecated 

func ToHex(b []byte) string

ToHex returns the hex representation of b, prefixed with '0x'. For empty slices, the return value is "0x0".

Deprecated: use hexutil.Encode instead.

func Uint16ToBytes 

func Uint16ToBytes(n uint16) []byte

func Uint32ToBytes 

func Uint32ToBytes(n uint32) []byte

func Uint64ToBytes 

func Uint64ToBytes(n uint64) []byte

func Uint8ToBytes 

func Uint8ToBytes(n uint8) []byte

func UintToBytes 

func UintToBytes(n uint) []byte

func WasmCallResultCompatibleSolInt64 

func WasmCallResultCompatibleSolInt64(res []byte) []byte

func WasmCallResultCompatibleSolString 

func WasmCallResultCompatibleSolString(res []byte) []byte

Types

type Address 

type Address [AddressLength]byte

Address represents the 20 byte address of an Ethereum account.

func BigToAddress 

func BigToAddress(b *big.Int) Address

BigToAddress returns Address with byte values of b. If b is larger than len(h), b will be cropped from the left.

func BytesToAddress 

func BytesToAddress(b []byte) Address

BytesToAddress returns Address with value b. If b is larger than len(h), b will be cropped from the left.

func HexToAddress 

func HexToAddress(s string) Address

HexToAddress returns Address with byte values of s. If s is larger than len(h), s will be cropped from the left.

func (Address) Big 

func (a Address) Big() *big.Int

Big converts an address to a big integer.

func (Address) Bytes 

func (a Address) Bytes() []byte

Bytes gets the string representation of the underlying address.

func (Address) Format 

func (a Address) Format(s fmt.State, c rune)

Format implements fmt.Formatter, forcing the byte slice to be formatted as is, without going through the stringer interface used for logging.

func (Address) Hash 

func (a Address) Hash() Hash

Hash converts an address to a hash by left-padding it with zeros.

func (Address) Hex 

func (a Address) Hex() string

Hex returns an EIP55-compliant hex string representation of the address.

func (Address) HexWithNoPrefix 

func (a Address) HexWithNoPrefix() string

func (Address) MarshalText 

func (a Address) MarshalText() ([]byte, error)

MarshalText returns the hex representation of a.

func (*Address) Scan 

func (a *Address) Scan(src interface{}) error

Scan implements Scanner for database/sql.

func (*Address) SetBytes 

func (a *Address) SetBytes(b []byte)

SetBytes sets the address to the value of b. If b is larger than len(a) it will panic.

func (Address) String 

func (a Address) String() string

String implements fmt.Stringer.

func (*Address) UnmarshalJSON 

func (a *Address) UnmarshalJSON(input []byte) error

UnmarshalJSON parses a hash in hex syntax.

func (*Address) UnmarshalText 

func (a *Address) UnmarshalText(input []byte) error

UnmarshalText parses a hash in hex syntax.

func (Address) Value 

func (a Address) Value() (driver.Value, error)

Value implements valuer for database/sql.

type BlockConfirmSign 

type BlockConfirmSign [BlockConfirmSignLength]byte

func NewBlockConfirmSign 

func NewBlockConfirmSign(signSlice []byte) *BlockConfirmSign

func (*BlockConfirmSign) String 

func (sig *BlockConfirmSign) String() string

type CBFTProduceBlockCfg 

type CBFTProduceBlockCfg struct {
	ProduceDuration int32 `json:"ProduceDuration"`
	BlockInterval   int32 `json:"BlockInterval"`
}

type CommonResult 

type CommonResult struct {
	RetCode int32      `json:"code"`
	RetMsg  string     `json:"msg"`
	Data    []NodeInfo `json:"data"`
}

type Hash 

type Hash [HashLength]byte

Hash represents the 32 byte Keccak256 hash of arbitrary data.

func BigToHash 

func BigToHash(b *big.Int) Hash

BigToHash sets byte representation of b to hash. If b is larger than len(h), b will be cropped from the left.

func BytesToHash 

func BytesToHash(b []byte) Hash

BytesToHash sets b to hash. If b is larger than len(h), b will be cropped from the left.

func HexToHash 

func HexToHash(s string) Hash

HexToHash sets byte representation of s to hash. If b is larger than len(h), b will be cropped from the left.

func (Hash) Big 

func (h Hash) Big() *big.Int

Big converts a hash to a big integer.

func (Hash) Bytes 

func (h Hash) Bytes() []byte

Bytes gets the byte representation of the underlying hash.

func (Hash) Format 

func (h Hash) Format(s fmt.State, c rune)

Format implements fmt.Formatter, forcing the byte slice to be formatted as is, without going through the stringer interface used for logging.

func (Hash) Generate 

func (h Hash) Generate(rand *rand.Rand, size int) reflect.Value

Generate implements testing/quick.Generator.

func (Hash) Hex 

func (h Hash) Hex() string

Hex converts a hash to a hex string.

func (Hash) HexWithNoPrefix 

func (h Hash) HexWithNoPrefix() string

Hex converts a hash to a hex string with no prefix of 0x.

func (Hash) MarshalText 

func (h Hash) MarshalText() ([]byte, error)

MarshalText returns the hex representation of h.

func (*Hash) Scan 

func (h *Hash) Scan(src interface{}) error

Scan implements Scanner for database/sql.

func (*Hash) SetBytes 

func (h *Hash) SetBytes(b []byte)

SetBytes sets the hash to the value of b. If b is larger than len(h), b will be cropped from the left.

func (Hash) String 

func (h Hash) String() string

String implements the stringer interface and is used also by the logger when doing full logging into a file.

func (Hash) TerminalString 

func (h Hash) TerminalString() string

TerminalString implements log.TerminalStringer, formatting a string for console output during logging.

func (*Hash) UnmarshalJSON 

func (h *Hash) UnmarshalJSON(input []byte) error

UnmarshalJSON parses a hash in hex syntax.

func (*Hash) UnmarshalText 

func (h *Hash) UnmarshalText(input []byte) error

UnmarshalText parses a hash in hex syntax.

func (Hash) Value 

func (h Hash) Value() (driver.Value, error)

Value implements valuer for database/sql.

type MixedcaseAddress 

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

MixedcaseAddress retains the original string, which may or may not be correctly checksummed

func NewMixedcaseAddress 

func NewMixedcaseAddress(addr Address) MixedcaseAddress

NewMixedcaseAddress constructor (mainly for testing)

func NewMixedcaseAddressFromString 

func NewMixedcaseAddressFromString(hexaddr string) (*MixedcaseAddress, error)

NewMixedcaseAddressFromString is mainly meant for unit-testing

func (*MixedcaseAddress) Address 

func (ma *MixedcaseAddress) Address() Address

Address returns the address

func (*MixedcaseAddress) MarshalJSON 

func (ma *MixedcaseAddress) MarshalJSON() ([]byte, error)

MarshalJSON marshals the original value

func (*MixedcaseAddress) Original 

func (ma *MixedcaseAddress) Original() string

Original returns the mixed-case input string

func (*MixedcaseAddress) String 

func (ma *MixedcaseAddress) String() string

String implements fmt.Stringer

func (*MixedcaseAddress) UnmarshalJSON 

func (ma *MixedcaseAddress) UnmarshalJSON(input []byte) error

UnmarshalJSON parses MixedcaseAddress

func (*MixedcaseAddress) ValidChecksum 

func (ma *MixedcaseAddress) ValidChecksum() bool

ValidChecksum returns true if the address has valid checksum

type NodeInfo 

type NodeInfo struct {
	Name  string `json:"name,omitempty"`
	Owner string `json:"owner,omitempty"`
	Desc  string `json:"desc,omitempty"`
	Types int32  `json:"type,omitempty"`
	// status 1为正常节点, 2为删除节点
	Status     int32  `json:"status,omitempty"`
	ExternalIP string `json:"externalIP,omitempty"`
	InternalIP string `json:"internalIP,omitempty"`
	PublicKey  string `json:"publicKey,omitempty"`
	RpcPort    int32  `json:"rpcPort,omitempty"`
	P2pPort    int32  `json:"p2pPort,omitempty"`
	// delay set validatorSet
	DelayNum uint64 `json:"delayNum,omitempty"`
}

type PrettyAge 

type PrettyAge time.Time

PrettyAge is a pretty printed version of a time.Duration value that rounds the values up to a single most significant unit, days/weeks/years included.

func (PrettyAge) String 

func (t PrettyAge) String() string

String implements the Stringer interface, allowing pretty printing of duration values rounded to the most significant time unit.

type PrettyDuration 

type PrettyDuration time.Duration

PrettyDuration is a pretty printed version of a time.Duration value that cuts the unnecessary precision off from the formatted textual representation.

func (PrettyDuration) String 

func (d PrettyDuration) String() string

String implements the Stringer interface, allowing pretty printing of duration values rounded to three decimals.

type StorageSize 

type StorageSize float64

StorageSize is a wrapper around a float value that supports user friendly formatting.

func (StorageSize) String 

func (s StorageSize) String() string

String implements the stringer interface.

func (StorageSize) TerminalString 

func (s StorageSize) TerminalString() string

TerminalString implements log.TerminalStringer, formatting a string for console output during logging.

type SystemConfig 

type SystemConfig struct {
	SystemConfigMu  *sync.RWMutex
	SysParam        *SystemParameter
	Nodes           []NodeInfo
	HighsetNumber   *big.Int
	ContractAddress map[string]Address
}
var SysCfg *SystemConfig

func (*SystemConfig) GetBlockGasLimit 

func (sc *SystemConfig) GetBlockGasLimit() int64

func (*SystemConfig) GetCBFTTime 

func (sc *SystemConfig) GetCBFTTime() CBFTProduceBlockCfg

func (*SystemConfig) GetConsensusNodes 

func (sc *SystemConfig) GetConsensusNodes() []NodeInfo

func (*SystemConfig) GetConsensusNodesFilterDelay 

func (sc *SystemConfig) GetConsensusNodesFilterDelay(number uint64) []NodeInfo

func (*SystemConfig) GetContractAddress 

func (sc *SystemConfig) GetContractAddress(name string) Address

func (*SystemConfig) GetDeletedNodes 

func (sc *SystemConfig) GetDeletedNodes() []NodeInfo

func (*SystemConfig) GetGasContractGas 

func (sc *SystemConfig) GetGasContractGas() Address

func (*SystemConfig) GetGasContractName 

func (sc *SystemConfig) GetGasContractName() string

func (*SystemConfig) GetHighsetNumber 

func (sc *SystemConfig) GetHighsetNumber() *big.Int

func (*SystemConfig) GetNormalNodes 

func (sc *SystemConfig) GetNormalNodes() []NodeInfo

func (*SystemConfig) GetTxGasLimit 

func (sc *SystemConfig) GetTxGasLimit() int64

func (*SystemConfig) IfCheckContractDeployPermission 

func (sc *SystemConfig) IfCheckContractDeployPermission() int64

func (*SystemConfig) IsProduceEmptyBlock 

func (sc *SystemConfig) IsProduceEmptyBlock() bool

func (*SystemConfig) IsValidJoinNode 

func (sc *SystemConfig) IsValidJoinNode(publicKey string) bool

func (*SystemConfig) UpdateSystemConfig 

func (sc *SystemConfig) UpdateSystemConfig()

type SystemParameter 

type SystemParameter struct {
	BlockGasLimit                 int64
	TxGasLimit                    int64
	CBFTTime                      CBFTProduceBlockCfg
	GasContractName               string
	GasContractAddr               Address
	CheckContractDeployPermission int64
	IsProduceEmptyBlock           bool
}

type UnprefixedAddress 

type UnprefixedAddress Address

UnprefixedAddress allows marshaling an Address without 0x prefix.

func (UnprefixedAddress) MarshalText 

func (a UnprefixedAddress) MarshalText() ([]byte, error)

MarshalText encodes the address as hex.

func (*UnprefixedAddress) UnmarshalText 

func (a *UnprefixedAddress) UnmarshalText(input []byte) error

UnmarshalText decodes the address from hex. The 0x prefix is optional.

type UnprefixedHash 

type UnprefixedHash Hash

UnprefixedHash allows marshaling a Hash without 0x prefix.

func (UnprefixedHash) MarshalText 

func (h UnprefixedHash) MarshalText() ([]byte, error)

MarshalText encodes the hash as hex.

func (*UnprefixedHash) UnmarshalText 

func (h *UnprefixedHash) UnmarshalText(input []byte) error

UnmarshalText decodes the hash from hex. The 0x prefix is optional.

Source Files

View all Source files

Directories

Path Synopsis
Package bitutil implements fast bitwise operations.
 Package bitutil implements fast bitwise operations.
Package compiler wraps the Solidity compiler executable (solc).
 Package compiler wraps the Solidity compiler executable (solc).
Package hexutil implements hex encoding with 0x prefix.
 Package hexutil implements hex encoding with 0x prefix.
Package math provides integer math utilities.
 Package math provides integer math utilities.
Package mclock is a wrapper for a monotonic clock source
 Package mclock is a wrapper for a monotonic clock source

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