}
	// Wait for all parallel RLock()s to succeed.
	for i := 0; i < numReaders; i++ {
		<-clocked
	}
	for i := 0; i < numReaders; i++ {
		cunlock <- true
	}
	// Wait for the goroutines to finish.
	for i := 0; i < numReaders; i++ {
		<-cdone
	}
}

// Borrowed from rwmutex_test.go
func TestParallelReaders(t *testing.T) {
	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(-1))

          "expr": "go_goroutines{app=\"istiod\"}",
          "format": "time_series",
          "intervalFactor": 2,
          "legendFormat": "Number of Goroutines",
          "refId": "A",
          "step": 2
        }
      ],
      "title": "Goroutines",
      "type": "timeseries"
    }
  ],
  "refresh": "",
  "schemaVersion": 38,
  "style": "dark",
  "tags": [],
  "templating": {

}

func (f *sftpDriver) Filewrite(r *sftp.Request) (w io.WriterAt, err error) {
	stopFn := globalSftpMetrics.log(r, f.AccessKey())
	defer func() {
		if err != nil {
			// If there is an error, we never started the goroutine.
			stopFn(0, err)
		}
	}()

	flags := r.Pflags()
	if !flags.Write {
		// sanity check
		return nil, os.ErrInvalid
	}

	bucket, object := path2BucketObject(r.Filepath)

		n = tw
	}
	t.mu.Lock()
	defer t.mu.Unlock()

	t.objAPI = objAPI
	t.updateWorkers(n)
}

// PendingTasks returns the number of ILM transition tasks waiting for a worker
// goroutine.
func (t *transitionState) PendingTasks() int {
	return len(t.transitionCh)
}

// ActiveTasks returns the number of active (ongoing) ILM transition tasks.
func (t *transitionState) ActiveTasks() int64 {

- kube-apiserver: fixed a bug that could cause a goroutine leak if the apiserver encountered an encoding error serving a watch to a websocket watcher ([#84693](https://github.com/kubernetes/kubernetes/pull/84693), [@tedyu](https://github.com/tedyu))

		}(i)
	}
	wg.Wait()
}

func TestEmptyReaderConcurrent(t *testing.T) {
	// Test for the race detector, to verify a Read that doesn't yield any bytes
	// is okay to use from multiple goroutines. This was our historic behavior.
	// See golang.org/issue/7856
	r := NewReader([]byte{})
	var wg sync.WaitGroup
	for i := 0; i < 5; i++ {
		wg.Add(2)
		go func() {
			defer wg.Done()
			var buf [1]byte

				if result != expectedFilepath {
					t.Fatalf("expected %s, got %s", expectedFilepath, result)
				}
				// Successful test case
				return
			}

			// Handle chained CNI plugin cases
			// Call with goroutine to test fsnotify watcher
			parent, cancel := context.WithCancel(context.Background())
			defer cancel()
			resultChan, errChan := make(chan string, 1), make(chan error, 1)

Aber all diese Funktionalität der Verwendung von asynchronem Code mit `async` und `await` wird oft als Verwendung von „Coroutinen“ zusammengefasst. Es ist vergleichbar mit dem Hauptmerkmal von Go, den „Goroutinen“.

## Fazit

Sehen wir uns den gleichen Satz von oben noch mal an:

But all this functionality of using asynchronous code with `async` and `await` is many times summarized as using "coroutines". It is comparable to the main key feature of Go, the "Goroutines".

## Conclusion

Let's see the same phrase from above:

> Modern versions of Python have support for **"asynchronous code"** using something called **"coroutines"**, with **`async` and `await`** syntax.

const csvSplitSize = 128 << 10

// startReaders will read the header if needed and spin up a parser
// and a number of workers based on GOMAXPROCS.
// If an error is returned no goroutines have been started and r.err will have been set.
func (r *Reader) startReaders(newReader func(io.Reader) *csv.Reader) error {
	if r.args.FileHeaderInfo != none {
		// Read column names
		// Get one line.