}()

	cleanReqs := make(chan struct{})
	gotCall := make(chan struct{})
	defer close(cleanReqs)
	// 1: Block forever
	h1 := func(payload []byte) ([]byte, *RemoteErr) {
		gotCall <- struct{}{}
		<-cleanReqs
		return nil, nil
	}
	// 2: Also block, but with streaming.
	h2 := StreamHandler{
		Handle: func(ctx context.Context, payload []byte, request <-chan []byte, resp chan<- []byte) *RemoteErr {

			select {
			case sub.ch <- item:
			default:
			}
		}
	}
}

// Subscribe - Adds a subscriber to pubsub system
func (ps *PubSub[T, M]) Subscribe(mask M, subCh chan T, doneCh <-chan struct{}, filter func(entry T) bool) error {
	totalSubs := atomic.AddInt32(&ps.numSubscribers, 1)
	if ps.maxSubscribers > 0 && totalSubs > ps.maxSubscribers {
		atomic.AddInt32(&ps.numSubscribers, -1)

// concurrency, just threads and synchronization
// and foreign code on multiple pthreads.

package main

import (
	big "."
	"runtime"
)

func fibber(c chan *big.Int, out chan string, n int64) {
	// Keep the fibbers in dedicated operating system
	// threads, so that this program tests coordination
	// between pthreads and not just goroutines.
	runtime.LockOSThread()

	i := big.NewInt(n)

		responseCh <- resp
	}
}

func (m *muxClient) handleTwowayRequests(errResp chan<- Response, requests <-chan []byte) {
	var errState bool
	if debugPrint {
		start := time.Now()
		defer func() {
			fmt.Println("Mux", m.MuxID, "Request took", time.Since(start).Round(time.Millisecond))
		}()
	}

	var pingTimer <-chan time.Time
	if m.deadline == 0 || m.deadline > m.clientPingInterval {

}

func (client *peerRESTClient) GetResourceMetrics(ctx context.Context) (<-chan MetricV2, error) {
	resp, err := getResourceMetricsRPC.Call(ctx, client.gridConn(), grid.NewMSS())
	if err != nil {
		return nil, err
	}
	ch := make(chan MetricV2)
	go func(ch chan<- MetricV2) {
		defer close(ch)
		for _, m := range resp.Value() {
			if m == nil {
				continue
			}

func doTestParallelReaders(numReaders, gomaxprocs int) {
	runtime.GOMAXPROCS(gomaxprocs)
	m := NewDRWMutex(ds, "test-parallel")

	clocked := make(chan bool)
	cunlock := make(chan bool)
	cdone := make(chan bool)
	for range numReaders {
		go parallelReader(context.Background(), m, clocked, cunlock, cdone)
	}
	// Wait for all parallel RLock()s to succeed.
	for range numReaders {
		<-clocked
	}
	for range numReaders {

func (h *StreamTypeHandler[Payload, Req, Resp]) RegisterNoPayload(m *Manager, handle func(ctx context.Context, in <-chan Req, out chan<- Resp) *RemoteErr, subroute ...string) error {
	h.WithPayload = false
	return h.register(m, func(ctx context.Context, p Payload, in <-chan Req, out chan<- Resp) *RemoteErr {
		return handle(ctx, in, out)
	}, subroute...)
}

```

/// check | vérifier

Comme vous l'avez remarqué, la valeur reçue par la fonction (et renvoyée ensuite) est `3`,
en tant qu'entier (`int`) Python, pas la chaîne de caractères (`string`) `"3"`.

Grâce aux déclarations de types, **FastAPI** fournit du
<abbr title="conversion de la chaîne de caractères venant de la requête HTTP en données Python">"parsing"</abbr> automatique.

///

## Validation de données

	input        chan *queueItem        // input for workers
	queue        chan *queueItem        // output from workers in order
	err          error                  // global error state, only touched by Reader.Read
	bufferPool   bpool.Pool[[]byte]     // pool of []byte objects for input
	csvDstPool   bpool.Pool[[][]string] // pool of [][]string used for output

	// Use buffered channel to take care of burst sends or slow w.Write()
	mergeCh := make(chan []byte, globalAPIConfig.getRequestsPoolCapacity()*len(globalEndpoints.Hostnames()))
	localCh := make(chan event.Event, globalAPIConfig.getRequestsPoolCapacity())

	// Convert local messages to JSON and send to mergeCh
	go func() {