common

package
v0.0.0-...-e1f35ab Latest Latest
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 Go to latest Published: Jan 14, 2020 License: LGPL-3.0 Imports: 24 Imported by: 69

Documentation

Overview

Package common contains various helper functions.

Index

Constants

View Source 
const (
	HashLength     = 32
	AddressLength  = 20
	DataHashLength = 4
)
View Source 
const (
	LocalTxs   = 0
	InputTxs   = 1
	OutputTxs  = 2
	MaxTxs     = OutputTxs + 1
	InvalidTxs = 4
)

extend txs

View Source 
const BitTotal = 2 // 13
View Source 
const MaxShardingTotal = (2 << (BitTotal - 1))

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(0xff)
	Big257 = big.NewInt(257)
)

Common big integers often used

View Source 
var (
	ErrInterfaceType = errors.New("interface type not match")
	ErrToDo          = errors.New("need to do")
)

Functions

func AbsolutePath 

func AbsolutePath(Datadir string, filename string) string

func Bytes2Hex 

func Bytes2Hex(d []byte) string

func CheckChan 

func CheckChan() interface{}

func CheckEleSharding 

func CheckEleSharding(rShard, lShard uint16, rEthHeight, lEthHeight uint64, rEleHeight, lEleHeight uint64) bool

func CompressBytes 

func CompressBytes(data []byte) ([]byte, error)

func CopyBytes 

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

Copy bytes

Returns an exact copy of the provided bytes

func EleSyncRule 

func EleSyncRule(remoteHeightEle, localHeightEle, remoteHeightEth, localHeightEth int64) bool

func EmptyAddress 

func EmptyAddress(a Address) bool

func EmptyHash 

func EmptyHash(h Hash) bool

func FileExist 

func FileExist(filePath string) bool

func FromHex 

func FromHex(s string) []byte

func GetAlign64 

func GetAlign64(pos int64) int64

func GetBrotherSharding 

func GetBrotherSharding(currentShard, totalShard uint16) int16

func GetChildSharding 

func GetChildSharding(currentShard, totalShard uint16) (int16, int16)

func GetEleShardHeight 

func GetEleShardHeight(rShard, lShard uint16) uint64

func GetEleSharding 

func GetEleSharding(eBase *Address, lampHeight uint64) uint16

func GetErrBytes 

func GetErrBytes(err error) []byte

func GetErrString 

func GetErrString(errBytes []byte) string

func GetIPPort 

func GetIPPort(ip string) (string, string)

Parameter ip format: *.*.*.*:*, or [::]:*

func GetNextShardingHeight 

func GetNextShardingHeight(lampHeight uint64) uint64

func GetParentSharding 

func GetParentSharding(currentShard, totalShard uint16) int16

func GetRealSharding 

func GetRealSharding(address Address) uint16

Real sharding by address, sharding [0, 8191]

func GetSharding 

func GetSharding(address Address, lampHeight uint64) uint16

func GetSharding2 

func GetSharding2(realShard, totalShard uint16) uint16

func GetSharding3 

func GetSharding3(realShard uint16, lampHeight uint64) uint16

func GetShardingHeight 

func GetShardingHeight(s uint16) uint64

func GetShareObjData 

func GetShareObjData(sharingCode string) (objId uint64, offset uint64, length uint64, price uint64, timeStart string, timeStop string, fileName string, sharerCSNodeID string, receiver string, key string, err error)

func GetTimeString 

func GetTimeString(sec uint64) string

func GetTotalSharding 

func GetTotalSharding(lampHeight uint64) uint16

func GetTxsType 

func GetTxsType(eBase, from, to *Address, lampHeight uint64) int

func GetUnixTime 

func GetUnixTime(str string) (uint64, error)

func GetconsenusBft 

func GetconsenusBft() bool

convenient for test

func Hex2Bytes 

func Hex2Bytes(str string) []byte

func Hex2BytesFixed 

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

func IsFreeAct 

func IsFreeAct(h uint64, t uint8) bool

func IsHexAddress 

func IsHexAddress(s string) bool

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

func IsSameIP 

func IsSameIP(ip, ip2 string) bool

func IsSameSharding 

func IsSameSharding(a, b Address, lampHeight uint64) bool

func KeyID 

func KeyID(addr Address, objID uint64) string

func LeftPadBytes 

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

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 Max 

func Max(x, y int64) int64

func Min 

func Min(x, y int64) int64

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

func ToHex 

func ToHex(b []byte) string

func UncompressBytes 

func UncompressBytes(data []byte) ([]byte, error)

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

func BytesToAddress 

func BytesToAddress(b []byte) Address

func HexToAddress 

func HexToAddress(s string) Address

func StringToAddress 

func StringToAddress(s string) Address

func (Address) Big 

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

func (Address) Bytes 

func (a Address) Bytes() []byte

func (*Address) Equal 

func (a *Address) Equal(b Address) bool

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

func (Address) Hex 

func (a Address) Hex() string

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

func (Address) MarshalText 

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

MarshalText returns the hex representation of a.

func (*Address) PShortString 

func (a *Address) PShortString() string

func (*Address) Set 

func (a *Address) Set(other Address)

Sets a to other

func (*Address) SetBytes 

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

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

func (*Address) SetString 

func (a *Address) SetString(s string)

Set string `s` to a. If s is larger than len(a) it will panic

func (Address) ShortString 

func (a Address) ShortString() string

func (Address) Str 

func (a Address) Str() string

Get the string representation of the underlying address

func (Address) String 

func (a Address) String() string

String implements the stringer interface and is used also by the logger.

func (Address) ToHex 

func (a Address) ToHex() string

Hex returns an EIP55-compliant hex string representation of the address(a hex string without 0x prefix).

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.

type AddressNode 

type AddressNode struct {
	Address Address
	NodeStr string
}

type Addresss 

type Addresss []Address

type BlockIDNode 

type BlockIDNode struct {
	BlockID uint64
	NodeStr string
}

type CSAuthData 

type CSAuthData struct {
	Authorizer Address // authorizer
	StartTime  uint64  // authorize starttime
	EndTime    uint64  // authorize endtime
	Flow       uint64  // authorize flow
	// AuthAllowTime uint64  // authorizer allow time
	CSPickupTime  uint64 // pickup time
	AuthAllowFlow uint64 // authorizer allow flow
	CSPickupFlow  uint64 // pickup flow
	// UsedFlow      uint64 // used flow
	PayMethod uint8 // payment method, 0-time, 1-flow
}

type DataHash 

type DataHash [DataHashLength]byte

func BytesToDataHash 

func BytesToDataHash(b []byte) DataHash

func (*DataHash) Equal 

func (h *DataHash) Equal(d DataHash) bool

func (*DataHash) SetBytes 

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

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

type Hash 

type Hash [HashLength]byte

Hash represents the 32 byte Keccak256 hash of arbitrary data.

func BigToHash 

func BigToHash(b *big.Int) Hash

func BytesToHash 

func BytesToHash(b []byte) Hash

func HexToHash 

func HexToHash(s string) Hash

func StringToHash 

func StringToHash(s string) Hash

func (Hash) Big 

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

func (Hash) Bytes 

func (h Hash) Bytes() []byte

func (*Hash) Equal 

func (a *Hash) Equal(b Hash) bool

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

func (Hash) MarshalText 

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

MarshalText returns the hex representation of h.

func (*Hash) PShortPointer 

func (h *Hash) PShortPointer() string

func (*Hash) Set 

func (h *Hash) Set(other Hash)

Sets h to other

func (*Hash) SetBytes 

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

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

func (*Hash) SetString 

func (h *Hash) SetString(s string)

Set string `s` to h. If s is larger than len(h) s will be cropped (from left) to fit.

func (Hash) ShortString 

func (h Hash) ShortString() string

func (Hash) Str 

func (h Hash) Str() string

Get the string representation of the underlying hash

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) ToHex 

func (h Hash) ToHex() string

a hex string without 0x prefix

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.

type Hashs 

type Hashs []Hash

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 SDBMailData 

type SDBMailData struct {
	Sender      string
	Title       string
	Content     string
	TimeStamp   string
	FileSharing string
	Signature   string
	EncryptType string
	Key         string
}

type SharingCodeST 

type SharingCodeST struct {
	FileObjID         uint64 `json:"ObjectID"`
	FileName          string `json:"FileName"`
	FileOffset        uint64 `json:"FileOffset"`
	FileSize          uint64 `json:"FileSize"`
	Receiver          string `json:"Receiver"`
	StartTime         string `json:"TimeStart"`
	StopTime          string `json:"TimeStop"`
	Price             uint64 `json:"Price"`
	SharerAgentNodeID string `json:"SharerCSNodeID"`
	Key               string `json:"Key"`
	Signature         string `json:"Signature"`
}

func (*SharingCodeST) HashNoSignature 

func (s *SharingCodeST) HashNoSignature() Hash

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 TxMailData 

type TxMailData struct {
	Title       string `json:"Title,omitempty"`
	Sender      string `json:"Sender,omitempty"`
	Receiver    string `json:"Receiver,omitempty"`
	Content     string `json:"Content,omitempty"`
	TimeStamp   string `json:"TimeStamp,omitempty"`
	FileSharing string `json:"FileSharing,omitempty"`

	Signature   string `json:"Signature,omitempty"`
	EncryptType string `json:"EncryptType,omitempty"`
	Key         string `json:"Key,omitempty"`
}

func (*TxMailData) UnmarshalJson 

func (mail *TxMailData) UnmarshalJson(jsonStr string) error

type UnprefixedAddress 

type UnprefixedAddress Address

UnprefixedHash 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.

type WalletCSAuthData 

type WalletCSAuthData struct {
	CsAddr        Address // CsAddr
	StartTime     uint64  // authorize starttime
	EndTime       uint64  // authorize endtime
	Flow          uint64  // authorize flow
	CSPickupTime  uint64  // pickup time
	AuthAllowFlow uint64  // authorizer allow flow
	CSPickupFlow  uint64  // pickup flow
	PayMethod     uint8   // payment method, 0-time, 1-flow
	NodeID        string
}

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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