ruid

package module

v0.0.0-...-f6f428d Latest Latest Go to latest Published: Sep 12, 2017 License: MIT Imports: 11 Imported by: 3

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Repository

github.com/ibelie/ruid

Links

Open Source Insights

README ¶

ruid

RUID: Recently Unique Identifier. An implementation of Twitter snowflake in golang, generates 64-bit UUID used in 60 years.

Documentation ¶

Index ¶

Constants
Variables
type ID
- func RingKey(ident Ident, node string) ID
type Ident
type RUID
type RUIdentity
type Ring
- func NewRing(ident Ident, nodes ...string) *Ring
- func WeightedRing(ident Ident, weights map[string]int) *Ring

Constants ¶

View Source

const (
	VIRTUAL_NODES  = 50
	DEFAULT_WEIGHT = 1
)

View Source

const (
	TIMESTAMP_MASK  = 0x1FFFFFFFFFF
	TIMESTAMP_BITS  = 41
	HARDWARE_MASK   = 0x7FF
	HARDWARE_BITS   = 11
	HARDWARE_OFFSET = TIMESTAMP_BITS
	SEQUENCE_OFFSET = HARDWARE_BITS + HARDWARE_OFFSET
)

View Source

const EncodeRUID = "-ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_"

Variables ¶

View Source

var RUIDEncoding = base64.NewEncoding(EncodeRUID).WithPadding(base64.NoPadding)

Functions ¶

This section is empty.

Types ¶

type ID ¶

type ID interface {
	Lt(ID) bool
	Ge(ID) bool
	Hash() ID
	String() string
	Nonzero() bool
	ByteSize() int
	Serialize(*tygo.ProtoBuf)
}

func RingKey ¶

func RingKey(ident Ident, node string) ID

type Ident ¶

type Ident interface {
	New() ID
	Zero() ID
	Deserialize(*tygo.ProtoBuf) (ID, error)
	GetIDs([]byte) []ID
}

type RUID ¶

type RUID uint64

const ZERO RUID = 0

func FromBytes ¶

func FromBytes(b []byte) RUID

func FromString ¶

func FromString(s string) (RUID, error)

func New ¶

func New() RUID

func (RUID) ByteSize ¶

func (r RUID) ByteSize() (size int)

func (RUID) Bytes ¶

func (r RUID) Bytes() []byte

func (*RUID) Deserialize ¶

func (r *RUID) Deserialize(input *tygo.ProtoBuf) (err error)

func (RUID) Ge ¶

func (r RUID) Ge(o ID) bool

func (RUID) Hash ¶

func (r RUID) Hash() ID

func (RUID) Lt ¶

func (r RUID) Lt(o ID) bool

func (RUID) Nonzero ¶

func (r RUID) Nonzero() bool

func (RUID) Serialize ¶

func (r RUID) Serialize(output *tygo.ProtoBuf)

func (RUID) String ¶

func (r RUID) String() string

type RUIdentity ¶

type RUIdentity int

var RUIdent RUIdentity = 0

func (RUIdentity) Deserialize ¶

func (_ RUIdentity) Deserialize(input *tygo.ProtoBuf) (r ID, err error)

func (RUIdentity) GetIDs ¶

func (_ RUIdentity) GetIDs(bytes []byte) (ids []ID)

func (RUIdentity) New ¶

func (_ RUIdentity) New() ID

func (RUIdentity) Zero ¶

func (_ RUIdentity) Zero() ID

type Ring ¶

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

func NewRing ¶

func NewRing(ident Ident, nodes ...string) *Ring

func WeightedRing ¶

func WeightedRing(ident Ident, weights map[string]int) *Ring

func (*Ring) Append ¶

func (r *Ring) Append(nodes ...string)

func (*Ring) Get ¶

func (r *Ring) Get(key ID) (node string, ok bool)

func (*Ring) Remove ¶

func (r *Ring) Remove(nodes ...string)

func (*Ring) Update ¶

func (r *Ring) Update(weights map[string]int)

Source Files ¶

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