36 lines
641 B
Go
36 lines
641 B
Go
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package main
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import (
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"crypto/rand"
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"fmt"
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"sync/atomic"
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"time"
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)
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type nameGen struct {
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prefix string
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counter atomic.Uint64
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}
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func NewNameGen() *nameGen {
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currentTime := time.Now().Unix()
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randBytes := make([]byte, 8)
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_, err := rand.Read(randBytes)
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if err != nil {
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panic(err)
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}
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alpha := []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZ")
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uniqRunID := ""
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for _, b := range randBytes {
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uniqRunID += string(alpha[int(b)%len(alpha)])
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}
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return &nameGen{
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prefix: fmt.Sprintf("%d-%s", currentTime, uniqRunID),
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counter: atomic.Uint64{},
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}
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}
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func (n *nameGen) Next() string {
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return fmt.Sprintf("%s-%d", n.prefix, n.counter.Add(1))
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}
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