"uid": "$datasource"
               },
               "expr": "sum by (pod) (go_goroutines{app=\"istiod\"})",
               "legendFormat": "Goroutines ({{pod}})"
            }
         ],
         "title": "Goroutines",
         "type": "timeseries"
      },
      {
         "collapsed": false,
         "gridPos": {
            "h": 1,
            "w": 24,
            "x": 0,

		return err
	default:
	}
	if _, err := b.store.PutMultiple(b.items); err != nil {
		return err
	}
	b.items = make([]I, 0, b.limit)
	return nil
}

// Close commits the pending items and quits the goroutines
func (b *Batch[I]) Close() error {
	defer func() {
		close(b.quitCh)
	}()

	b.Lock()
	defer b.Unlock()
	return b.commit()
}

// NewBatch creates a new batch

// it is no longer referenced, so it must be kept alive (see runtime.KeepAlive)
// until any memory allocated from it is no longer needed.
//
// An Arena must never be used concurrently by multiple goroutines.
type Arena struct {
	a unsafe.Pointer
}

// NewArena allocates a new arena.
func NewArena() *Arena {
	return &Arena{a: runtime_arena_newArena()}
}

const jsonSplitSize = 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 *PReader) startReaders() {
	r.bufferPool.New = func() interface{} {
		return make([]byte, jsonSplitSize+1024)
	}

	// Create queue

	}
	// 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))

		}(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

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.

	}
	// 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": {

## Teknik Detaylar

Python'un modern versiyonlarında **`async` ve `await`** sözdizimi ile **"coroutines"**  kullanan **"asenkron kod"** desteğine sahiptir.

Bu ifadeyi aşağıdaki bölümlerde daha da ayrıntılı açıklayalım:

* **Asenkron kod**
* **`async` ve `await`**
* **Coroutines**

## Asenkron kod