common

package
v0.5.5-alpha Latest Latest
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 Go to latest Published: Dec 28, 2018 License: Apache-2.0 Imports: 17 Imported by: 61

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Constants

View Source 
const (
	// supported max asset precision is 8
	MaximumPrecision = 8
	StorageFactor    = 100000000
)
View Source 
const HEXADDRLEN = 1 + UINT160SIZE + SHA256CHKSUM // 1 for prefix char 53
View Source 
const MaxUint32 = ^uint32(0)
View Source 
const PREFIXCHAR = byte(53)
View Source 
const SHA256CHKSUM = 4
View Source 
const UINT160SIZE = 20
View Source 
const UINT256SIZE = 32

Variables

This section is empty.

Functions

func AbsUint 

func AbsUint(n1 uint, n2 uint) uint

func BytesReverse 

func BytesReverse(u []byte) []byte

func BytesToHexString 

func BytesToHexString(data []byte) string

func BytesToInt 

func BytesToInt(b []byte) []int

func BytesToInt16 

func BytesToInt16(b []byte) int16

func ClearBytes 

func ClearBytes(arr []byte, len int)

func CompareHeight 

func CompareHeight(blockHeight uint32, heights []uint32) bool

func FileExisted 

func FileExisted(filename string) bool

func GetCompactUint 

func GetCompactUint(buf []byte) (uint64, uint8)

func GetNonce 

func GetNonce() uint64

func GetUint16Array 

func GetUint16Array(source []byte) ([]uint16, error)

func HexStringToBytes 

func HexStringToBytes(value string) ([]byte, error)

func HexStringToBytesReverse 

func HexStringToBytesReverse(value string) ([]byte, error)

func IntToBytes 

func IntToBytes(n int) []byte

func IsEqualBytes 

func IsEqualBytes(b1 []byte, b2 []byte) bool

func IsValidHexAddr 

func IsValidHexAddr(s []byte) bool

func SetCompactUint 

func SetCompactUint(num uint64) []byte

TODO Fix the return value to the correct number

func SliceRemove 

func SliceRemove(slice []uint32, h uint32) []uint32

func ToArrayReverse 

func ToArrayReverse(arr []byte) []byte

func ToByteArray 

func ToByteArray(source []uint16) []byte

Types

type Cache 

type Cache interface {
	Add([]byte, interface{}) error
	Get([]byte) (interface{}, bool)
	Set([]byte, interface{}) error
}

Cache is an anstract cache layer

type CompactUint 

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

type Fixed64 

type Fixed64 int64

the 64 bit fixed-point number, precise 10^-8

func StringToFixed64 

func StringToFixed64(s string) (Fixed64, error)

func (*Fixed64) Deserialize 

func (f *Fixed64) Deserialize(r io.Reader) error

func (Fixed64) GetData 

func (f Fixed64) GetData() int64

func (*Fixed64) Serialize 

func (f *Fixed64) Serialize(w io.Writer) error

func (Fixed64) String 

func (f Fixed64) String() string

type GoCache 

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

GoCache is the caching layer implemented by go-cache.

func NewGoCache 

func NewGoCache(defaultExpiration, cleanupInterval time.Duration) *GoCache

NewGoCache creates a go-cache cache with a given default expiration duration and cleanup interval.

func (*GoCache) Add 

func (gc *GoCache) Add(key []byte, value interface{}) error

Add adds an item to the cache only if an item doesn't already exist for the given key, or if the existing item has expired. Returns an error otherwise.

func (*GoCache) Get 

func (gc *GoCache) Get(key []byte) (interface{}, bool)

Get gets an item from the cache. Returns the item or nil, and a bool indicating whether the key was found.

func (*GoCache) Set 

func (gc *GoCache) Set(key []byte, value interface{}) error

Set adds an item to the cache, replacing any existing item, using the default expiration.

type Inventory 

type Inventory interface {
	//sig.SignableData
	Hash() Uint256
	Verify() error
	Type() InventoryType
}

TODO: temp inventory

type InventoryType 

type InventoryType byte
const (
	TRANSACTION InventoryType = 0x01
	BLOCK       InventoryType = 0x02
)

type Uint160 

type Uint160 [UINT160SIZE]uint8
var EmptyUint160 Uint160

func BigToUint160 

func BigToUint160(b *big.Int) Uint160

func BytesToUint160 

func BytesToUint160(b []byte) Uint160

func ToCodeHash 

func ToCodeHash(code []byte) (Uint160, error)

func ToScriptHash 

func ToScriptHash(address string) (Uint160, error)

func Uint160ParseFromBytes 

func Uint160ParseFromBytes(f []byte) (Uint160, error)

func (*Uint160) Big 

func (u *Uint160) Big() *big.Int

func (*Uint160) CompareTo 

func (u *Uint160) CompareTo(o Uint160) int

func (*Uint160) Deserialize 

func (f *Uint160) Deserialize(r io.Reader) error

func (*Uint160) Serialize 

func (u *Uint160) Serialize(w io.Writer) (int, error)

func (*Uint160) SetBytes 

func (u *Uint160) SetBytes(b []byte)

func (*Uint160) ToAddress 

func (f *Uint160) ToAddress() (string, error)

func (*Uint160) ToArray 

func (u *Uint160) ToArray() []byte

func (*Uint160) ToArrayReverse 

func (u *Uint160) ToArrayReverse() []byte

type Uint256 

type Uint256 [UINT256SIZE]uint8
var EmptyUint256 Uint256

func Uint256ParseFromBytes 

func Uint256ParseFromBytes(f []byte) (hash Uint256, err error)

func (*Uint256) CompareTo 

func (u *Uint256) CompareTo(o Uint256) int

func (*Uint256) Deserialize 

func (u *Uint256) Deserialize(r io.Reader) error

func (*Uint256) Serialize 

func (u *Uint256) Serialize(w io.Writer) (int, error)

func (*Uint256) ToArray 

func (u *Uint256) ToArray() []byte

func (*Uint256) ToArrayReverse 

func (u *Uint256) ToArrayReverse() []byte

func (*Uint256) ToHexString 

func (u *Uint256) ToHexString() string

func (*Uint256) ToString 

func (u *Uint256) ToString() string

Source Files

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