"sort"
	"strings"
	"time"
)

const (
	// deadline (in seconds) up to which the go routine leak detection has to be retried.
	leakDetectDeadline = 5
	// pause time (in milliseconds) between each snapshot at the end of the go routine leak detection.
	leakDetectPauseTimeMs = 50
)

// LeakDetect - type with  methods for go routine leak detection.
type LeakDetect struct {
	relevantRoutines map[string]bool
}

	h.mutex.Unlock()

	return nil
}

// healSequenceStart - this is the top-level background heal
// routine. It launches another go-routine that actually traverses
// on-disk data, checks and heals according to the selected
// settings. This go-routine itself, (1) monitors the traversal
// routine for completion, and (2) listens for external stop
// signals. When either event happens, it sets the finish status for

		err = errNoSuchGroup
	}
	return err
}

func (ies *IAMEtcdStore) watch(ctx context.Context, keyPath string) <-chan iamWatchEvent {
	ch := make(chan iamWatchEvent)

	// go routine to read events from the etcd watch channel and send them
	// down `ch`
	go func() {
		for {
		outerLoop:
			watchCh := ies.client.Watch(ctx,
				keyPath, etcd.WithPrefix(), etcd.WithKeysOnly())

			for {

		return errServerNotInitialized
	}

	mrfRec, err := p.loadMRF()
	if err != nil {
		return err
	}

	// queue replication heal in a goroutine to avoid holding up mrf save routine
	go func() {
		for vID, e := range mrfRec.Entries {
			ctx, cancel := context.WithTimeout(p.ctx, time.Second) // Do not waste more than a second on this.

	if logCh != nil {
		// We are not allowed to add when logCh is nil
		h.wg.Add(1)
		defer h.wg.Done()

	}
	h.logChMu.RUnlock()

	if logCh == nil {
		return
	}

	// Create a routine which sends json logs received
	// from an internal channel.
	for entry := range logCh {
		h.logEntry(entry)
	}
}

func (h *Target) logEntry(entry interface{}) {
	atomic.AddInt64(&h.totalMessages, 1)

	// dynamic sleeper to avoid thundering herd for trash folder expunge routine
	deleteCleanupSleeper = newDynamicSleeper(5, 25*time.Millisecond, false)

	// dynamic sleeper for multipart expiration routine
	deleteMultipartCleanupSleeper = newDynamicSleeper(5, 25*time.Millisecond, false)

	// Is _MINIO_DISABLE_API_FREEZE_ON_BOOT set?

	return client.endpoint.PoolIdx, client.endpoint.SetIdx, client.endpoint.DiskIdx
}

// Wrapper to restClient.Call to handle network errors, in case of network error the connection is disconnected
// and a healthcheck routine gets invoked that would reconnect.
func (client *storageRESTClient) call(ctx context.Context, method string, values url.Values, body io.Reader, length int64) (io.ReadCloser, error) {
	if values == nil {
		values = make(url.Values)

	// Load rebalance metadata if present
	err := z.loadRebalanceMeta(ctx)
	if err != nil {
		return fmt.Errorf("failed to load rebalance data: %w", err)
	}

	// Start rebalance routine
	z.StartRebalance()

	meta := poolMeta{}
	if err := meta.load(ctx, z.serverPools[0], z.serverPools); err != nil {
		return err
	}

	update, err := meta.validate(z.serverPools)
	if err != nil {

	sys.iamRefreshInterval = iamRefreshInterval
	// Initialize IAM store
	sys.initStore(objAPI, etcdClient)
	sys.Unlock()

	retryCtx, cancel := context.WithCancel(ctx)

	// Indicate to our routine to exit cleanly upon return.
	defer cancel()

	r := rand.New(rand.NewSource(time.Now().UnixNano()))

	// Migrate storage format if needed.
	for {
		// Migrate IAM configuration, if necessary.

	}

	pr, pw := xioutil.WaitPipe()
	go func() {
		pw.CloseWithError(er.getObjectWithFileInfo(ctx, bucket, object, off, length, pw, fi, metaArr, onlineDisks))
	}()

	// Cleanup function to cause the go routine above to exit, in
	// case of incomplete read.
	pipeCloser := func() {
		pr.CloseWithError(nil)
	}

	if !unlockOnDefer {
		return fn(pr, h, pipeCloser, nsUnlocker)
	}