Go Once

Internal

• The sync Package
• Goroutines | Synchronization

Overview

Once is a Go synchronization construct that is used when a piece of code must be executed only once. This is a useful idiom in initialization.

var once sync.Once
once.Do(

Methods

Do()

All invokers will block, except one, and they will be released after the one that does initialization finishes executing. The others will no execute.