generator

Documentation

Index

• Constants
• func Decompose(id uint64) map[string]uint64
• func IpToUint16(ip net.IP) (uint16, error)
• func LocalIpToUint16() (uint16, error)
• type Generator
  • func NewSnowflake(startTime time.Time, nodeID uint16) Generator
• type Snowflake
  • func (s *Snowflake) NextID() (uint64, error)

Examples

• NewSnowflake

Constants

const (
	TimeBit     = 39
	NodeBit     = 16
	SequenceBit = 8
)

Functions

func Decompose

func Decompose(id uint64) map[string]uint64

Decompose 根据id分解为mapping包含这组数据的所有信息

func IpToUint16

func IpToUint16(ip net.IP) (uint16, error)

IpToUint16 将IP地址转化为uint16

func LocalIpToUint16

func LocalIpToUint16() (uint16, error)

LocalIpToUint16 本地IP转化为uint16

Types

type Generator

type Generator interface {
	// NextID 获取下一个ID
	NextID() (uint64, error)
}

Generator 发号器

func NewSnowflake

func NewSnowflake(startTime time.Time, nodeID uint16) Generator

NewSnowflake 初始化 StartTime 起始时间 NodeID 服务器ID

Example

// 生成对象
generate := NewSnowflake(time.Now(), 1)
nid, err := generate.NextID()
if err != nil {
	// 处理错误
}
_ = nid

type Snowflake

type Snowflake struct {
	// 互斥锁
	sync.Mutex
	// contains filtered or unexported fields
}

Snowflake is a distributed unique ID generator.

func (*Snowflake) NextID

func (s *Snowflake) NextID() (uint64, error)

NextID 获取下一个ID