Created
October 2, 2018 16:02
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| // example of counting semaphore to control fixed no. of goroutines | |
| package main | |
| import ( | |
| "fmt" | |
| "time" | |
| ) | |
| func main() { | |
| // fixed no. of goroutines that are allowed to run at a time | |
| sema := make(chan struct{}, 5) | |
| for i := 0; i < 100; i++ { | |
| sema <- struct{}{} | |
| go func(i int) { | |
| fmt.Println(i) | |
| time.Sleep(1 * time.Second) | |
| <-sema | |
| }(i) | |
| } | |
| } |
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