Go 싱글턴

1 개요

Go 싱글톤

package main

import (
	"fmt"
	"sync"
)

type single struct {}
var singleInstance *single
var once sync.Once
func getInstance() *single {
	if singleInstance == nil {
		once.Do(
			func() {
				singleInstance = &single{}
			})
	}
	return singleInstance
}

package main

import "time"

func main() {
	for i := 0; i < 9; i++ {
		go getInstance()
	}
}

2 같이 보기

• 싱글톤
• Go 디자인패턴

3 참고

• https://refactoring.guru/design-patterns/singleton/go/example#example-1