util

func Addr2Hex ¶

func Addr2Hex(str string) (string, error)

Addr2Hex converts address string to hex string, only support ipv4.

func CRC16 ¶

func CRC16(buf string) uint16

CRC16 returns the CRC-16 checksum of data.

func FunctionName ¶

func FunctionName(i interface{}, seps ...rune) string

FunctionName returns function'name

func GenerateID ¶

func GenerateID() string

GenerateID simply generates an Aid.

func GenerateUUID ¶

func GenerateUUID(seedTime time.Time) string

GenerateUUID simply generates an unique UID.

func Go ¶

func Go(fn func())

Go goroutine

func Hex2Addr ¶

func Hex2Addr(str string) (string, error)

Hex2Addr converts hex string to address.

func JoinError ¶

func JoinError(errs ...interface{}) error

func JsonString ¶

func JsonString(obj interface{}) string

func LimitParallel ¶

func LimitParallel(restrict int, fns ...func()) func()

LimitParallel 并发,最大并发量restrict

func MaxInt ¶

func MaxInt(a, b int) int

func MinInt ¶

func MinInt(a, b int) int

func MinInt64 ¶

func MinInt64(a, b int64) int64

func Parallel ¶

func Parallel(fns ...func()) func()

Parallel 并发执行

func Ping ¶

func Ping(addr string) error

Ping returns if address is invalid

func SafeGo ¶

func SafeGo(fn func(), rec func(error))

SafeGo safe go

func Serial ¶

func Serial(fns ...func()) func()

Serial 串行