goroutines-waitgroup

README

goroutines-waitgroup example

Concurrency using a waitgroup (waiting for a collection of goroutines to finish).

These are my 5 main example of using goroutines,

• goroutines-async-channel-receive-no-waiting
• goroutines-async-channel-send-receive-waiting
• goroutines-multi-core
• goroutines-waitgroup <- You are here
• goroutines-worker-pools

GitHub Webpage

WAITGROUP

A WaitGroup allows to wait for a collection of goroutines to finish.

First make a waitgroup,

var wg sync.WaitGroup

• wg.Add(1) - Add the goroutines to the waitgroup
• wg.Done() - Call done when goroutine finished
• wg.Wait() - Wait for all the the waitgroups are done

RUN

go run goroutines_waitgroup.go