Created
February 23, 2019 08:31
-
-
Save dearing/789e5b9105818bb370bee775f6c8ff5c to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package main | |
| import ( | |
| "log" | |
| "math/rand" | |
| "sync" | |
| "time" | |
| "github.com/google/uuid" | |
| ) | |
| func main() { | |
| log.Println("Hello World") | |
| r := rand.New(rand.NewSource(99)) | |
| var wg sync.WaitGroup | |
| count := 0 | |
| in := make(chan string, 5) | |
| // create 5 workers to consume a channel | |
| for i := 0; i < 20; i++ { | |
| wg.Add(1) | |
| count++ | |
| go func(name int, in chan string) { | |
| defer wg.Done() | |
| completed := 0 | |
| for val := range in { | |
| completed++ | |
| sleep := time.Duration(r.Intn(60)) * time.Second | |
| time.Sleep(sleep) | |
| log.Printf("goroutine-%02d-%02d: %s took %s", name, completed, val, sleep.String()) | |
| } | |
| }(count, in) | |
| } | |
| // generate random strings because I am lazy | |
| for index := 0; index < 10000; index++ { | |
| in <- uuid.New().String() | |
| } | |
| close(in) | |
| wg.Wait() | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment