Clone this repo:
  1. bacd9c7 remove StopSignal, as runtime.Goexit does the same thing by Tao Wen · 6 years ago main upstream/master upstream/1.0.3
  2. 797cd41 Merge pull request #1 from kr1sten0/master by Tao Wen · 6 years ago
  3. 94ffc7f Renaming and more clear logic by kr1sten0 · 6 years ago
  4. 28f5fe9 tweak log message by Tao Wen · 6 years ago
  5. 27b2666 add README by Tao Wen · 6 years ago


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  • concurrent.Map: backport sync.Map for go below 1.9
  • concurrent.Executor: goroutine with explicit ownership and cancellable


because sync.Map is only available in go 1.9, we can use concurrent.Map to make code portable

m := concurrent.NewMap()
m.Store("hello", "world")
elem, found := m.Load("hello")
// elem will be "world"
// found will be true


executor := concurrent.NewUnboundedExecutor()
executor.Go(func(ctx context.Context) {
    everyMillisecond := time.NewTicker(time.Millisecond)
    for {
        select {
        case <-ctx.Done():
            fmt.Println("goroutine exited")
        case <-everyMillisecond.C:
            // do something
fmt.Println("executor stopped")

attach goroutine to executor instance, so that we can

  • cancel it by stop the executor with Stop/StopAndWait/StopAndWaitForever
  • handle panic by callback: the default behavior will no longer crash your application