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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") return case <-everyMillisecond.C: // do something } } }) time.Sleep(time.Second) executor.StopAndWaitForever() 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