util

Documentation

Index

• func GenerateID(shard int) int64
• func MeasureExecTime(beginAt time.Time, name string) time.Duration

Functions

func GenerateID

func GenerateID(shard int) int64

GenerateID generates a int64 id.

It is composed of unix timestamp, shard, and random number. For the first 42 bits is unix timestamp, the next 12 bits is shard, and the remaining 10 bits is a random number.

func MeasureExecTime

func MeasureExecTime(beginAt time.Time, name string) time.Duration

MeasureExecTime measures the duration from beginAt.

It is useful to be a defer statment.