util

Documentation

Index

• func BytesToString(bytes []byte) string
• func GetFirstIP() (string, error)
• func GetFirstPrivateIP() (string, error)
• func GetIPv4List() ([]string, error)
• func GetOneIP() (string, error)
• func GetPrivateIPList() ([]string, error)
• func IPtoUInt(ip string) uint32
• func IsPrivateIP(ip string) bool
• func JavaStringHash(s string) uint32
• func SnowFlakeID() string
• func StringToBytes(str string) []byte
• func UInt64UUID() (uint64, error)
• type ExponentialBackoff
  • func (b *ExponentialBackoff) Next(retryCount int) time.Duration

Functions

func BytesToString

func BytesToString(bytes []byte) string

BytesToString without copy

func GetFirstIP

func GetFirstIP() (string, error)

GetFirstIP gets the first IP of the current host

func GetFirstPrivateIP

func GetFirstPrivateIP() (string, error)

GetFirstPrivateIP gets the first private IP of the current host

func GetIPv4List

func GetIPv4List() ([]string, error)

GetIPv4List obtain all valid local addresses

func GetOneIP

func GetOneIP() (string, error)

GetOneIP obtain a valid ip address of the current host, with private ip preferred

func GetPrivateIPList

func GetPrivateIPList() ([]string, error)

GetPrivateIPList gets all the private IPs of the current host

func IPtoUInt

func IPtoUInt(ip string) uint32

IPtoUInt converts an IP to an uint64 integer

func IsPrivateIP

func IsPrivateIP(ip string) bool

IsPrivateIP checks if an IP is a private one, according to the tencent rules 内网保留IP参考KM: /q/view/210875

func JavaStringHash

func JavaStringHash(s string) uint32

JavaStringHash and Java String.hashCode() equivalent

func SnowFlakeID

func SnowFlakeID() string

SnowFlakeID generates a snowflake ID

func StringToBytes

func StringToBytes(str string) []byte

StringToBytes without copy

func UInt64UUID

func UInt64UUID() (uint64, error)

UInt64UUID generates an uint64 UUID

Types

type ExponentialBackoff

type ExponentialBackoff struct {
	InitialInterval time.Duration
	MaxInterval     time.Duration
	Multiplier      float64
	Randomization   float64
}

ExponentialBackoff implements an exponential backoff strategy

func (*ExponentialBackoff) Next

func (b *ExponentialBackoff) Next(retryCount int) time.Duration

Next calculates the next interval with exponential backoff