case "Rmdir":
		bucket, prefix := path2BucketObject(r.Filepath)
		if bucket == "" {
			return errors.New("deleting all buckets not allowed")
		}

		cctx, cancel := context.WithCancel(context.Background())
		defer cancel()

		if prefix == "" {
			// if all objects are not deleted yet this call may fail.
			return clnt.RemoveBucket(cctx, bucket)
		}

	if err != nil {
		return err
	}

	wk, err := workers.New(workerSize)
	if err != nil {
		// invalid worker size.
		return err
	}

	ctx, cancel := context.WithCancel(ctx)

	results := make(chan itemOrErr[ObjectInfo], 100)
	if err := api.Walk(ctx, r.Bucket, r.Prefix, results, WalkOptions{
		Marker: lastObject,
		Filter: selectObj,
	}); err != nil {
		cancel()

	}
	w.WriteHeader(http.StatusOK)
}

// NetperfHandler - perform mesh style network throughput test
func (a adminAPIHandlers) NetperfHandler(w http.ResponseWriter, r *http.Request) {
	ctx, cancel := context.WithCancel(r.Context())
	defer cancel()

	objectAPI, _ := validateAdminReq(ctx, w, r, policy.HealthInfoAdminAction)
	if objectAPI == nil {
		return
	}

	if !globalIsDistErasure {

	_, err := opts.UnmarshalMsg(payload)
	if err != nil {
		return grid.NewRemoteErr(err)
	}

	if !s.checkID(opts.DiskID) {
		return grid.NewRemoteErr(errDiskNotFound)
	}

	ctx, cancel := context.WithCancel(ctx)
	defer cancel()
	return grid.NewRemoteErr(s.getStorage().WalkDir(ctx, opts, grid.WriterToChannel(ctx, out)))

			})
		}); err != nil {
			t.Fatalf("prepare statement and nested transaction coexist: %v", err)
		}
	})
}

func TestCancelTransaction(t *testing.T) {
	ctx := context.Background()
	ctx, cancelFunc := context.WithCancel(ctx)
	cancelFunc()

	user := *GetUser("cancel_transaction", Config{})
	DB.Create(&user)

	err := DB.WithContext(ctx).Transaction(func(tx *gorm.DB) error {
		var result User
		tx.First(&result, user.ID)

	"testing"
	"time"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/auth"
	xhttp "github.com/minio/minio/internal/http"
)

func TestCheckValid(t *testing.T) {
	ctx, cancel := context.WithCancel(t.Context())
	defer cancel()

	objLayer, fsDir, err := prepareFS(ctx)
	if err != nil {
		t.Fatal(err)
	}
	defer os.RemoveAll(fsDir)
	if err = newTestConfig(globalMinioDefaultRegion, objLayer); err != nil {

	}
	xl.SetDiskID(emptyDiskID)

	xl.totalWrites.Store(xl.storage.getWriteAttribute())
	xl.totalDeletes.Store(xl.storage.getDeleteAttribute())
	xl.diskCtx, xl.diskCancel = context.WithCancel(context.TODO())
	for i := range xl.apiLatencies[:] {
		xl.apiLatencies[i] = &lockedLastMinuteLatency{}
	}
	if xl.healthCheck {
		go xl.monitorDiskWritable(xl.diskCtx)
	}
	return &xl
}

	}

	// Since `apiRouter` satisfies `http.Handler` it has a ServeHTTP to execute the logic of the handler.
	// Call the ServeHTTP to execute the handler.
	apiRouter.ServeHTTP(rec, req)

	ctx, cancel := context.WithCancel(GlobalContext)
	defer cancel()

	// Now check if we actually wrote to backend (regardless of the response
	// returned by the server).
	z := obj.(*erasureServerPools)
	xl := z.serverPools[0].sets[0]

				time.Sleep(lockRetryBackOff(dm.rng, attempt))
			}
		}
	}
}

func (dm *DRWMutex) startContinuousLockRefresh(lockLossCallback func(), id, source string, quorum int) {
	ctx, cancel := context.WithCancel(context.Background())

	dm.m.Lock()
	dm.cancelRefresh = cancel
	dm.m.Unlock()

	go func() {
		defer cancel()

		refreshTimer := time.NewTimer(dm.refreshInterval)
		defer refreshTimer.Stop()

	hs madmin.HealOpts, forceStart bool,
) *healSequence {
	reqInfo := &logger.ReqInfo{RemoteHost: clientAddr, API: "Heal", BucketName: bucket}
	reqInfo.AppendTags("prefix", objPrefix)
	ctx, cancel := context.WithCancel(logger.SetReqInfo(ctx, reqInfo))

	clientToken := mustGetUUID()

	return &healSequence{
		bucket:         bucket,
		object:         objPrefix,
		reportProgress: true,
		startTime:      UTCNow(),