}
}

func (h *Target) startQueueProcessor(ctx context.Context, mainWorker bool) {
	h.logChMu.RLock()
	if h.logCh == nil {
		h.logChMu.RUnlock()
		return
	}
	h.logChMu.RUnlock()

	atomic.AddInt64(&h.workers, 1)
	defer atomic.AddInt64(&h.workers, -1)

	h.wg.Add(1)
	defer h.wg.Done()

	entries := make([]interface{}, 0)

	globalObjLayerMutex.Lock()
	globalConsoleSrv = srv
	globalObjLayerMutex.Unlock()
}

func newObjectLayerFn() ObjectLayer {
	globalObjLayerMutex.RLock()
	defer globalObjLayerMutex.RUnlock()
	return globalObjectAPI
}

func setObjectLayer(o ObjectLayer) {
	globalObjLayerMutex.Lock()
	globalObjectAPI = o
	globalObjLayerMutex.Unlock()
}

// objectAPIHandler implements and provides http handlers for S3 API.

func newSrvConfig(objAPI ObjectLayer) error {
	// Initialize server config.
	srvCfg := newServerConfig()

	// hold the mutex lock before a new config is assigned.
	globalServerConfigMu.Lock()
	globalServerConfig = srvCfg
	globalServerConfigMu.Unlock()

	// Save config into file.
	return saveServerConfig(GlobalContext, objAPI, srvCfg)
}

	if opts.CheckPrecondFn != nil {
		// Lock the object before reading.
		lk := er.NewNSLock(bucket, object)
		lkctx, err := lk.GetRLock(ctx, globalOperationTimeout)
		if err != nil {
			return nil, err
		}
		rctx := lkctx.Context()
		obj, err := er.getObjectInfo(rctx, bucket, object, opts)
		lk.RUnlock(lkctx)
		if err != nil && !isErrVersionNotFound(err) && !isErrObjectNotFound(err) {

	t.lastDayMu.Lock()
	defer t.lastDayMu.Unlock()

	if _, ok := t.lastDayStats[tier]; !ok {
		t.lastDayStats[tier] = &lastDayTierStats{}
	}
	t.lastDayStats[tier].addStats(ts)
}

func (t *transitionState) getDailyAllTierStats() DailyAllTierStats {
	t.lastDayMu.RLock()
	defer t.lastDayMu.RUnlock()

	res := make(DailyAllTierStats, len(t.lastDayStats))

		usersSysType: usersSysType,
	}
}

func (ies *IAMEtcdStore) rlock() *iamCache {
	ies.RLock()
	return ies.iamCache
}

func (ies *IAMEtcdStore) runlock() {
	ies.RUnlock()
}

func (ies *IAMEtcdStore) lock() *iamCache {
	ies.Lock()
	return ies.iamCache
}

func (ies *IAMEtcdStore) unlock() {
	ies.Unlock()
}

func (ies *IAMEtcdStore) getUsersSysType() UsersSysType {

		usersSysType: usersSysType,
	}
}

func (iamOS *IAMObjectStore) rlock() *iamCache {
	iamOS.RLock()
	return iamOS.iamCache
}

func (iamOS *IAMObjectStore) runlock() {
	iamOS.RUnlock()
}

func (iamOS *IAMObjectStore) lock() *iamCache {
	iamOS.Lock()
	return iamOS.iamCache
}

func (iamOS *IAMObjectStore) unlock() {
	iamOS.Unlock()
}

func (iamOS *IAMObjectStore) getUsersSysType() UsersSysType {

		ch <- metric
	}
}

// LockAndSetBuckets - locks the buckets and sets the given buckets. It returns
// a function to unlock the buckets.
func (mg *MetricsGroup) LockAndSetBuckets(buckets []string) func() {
	mg.bucketsLock.Lock()
	mg.buckets = buckets
	return func() {
		mg.bucketsLock.Unlock()
	}
}

// MetricFQN - returns the fully qualified name for the given metric name.

		VersionID: versionID,
		DiskCount: len(storageDisks),
	}

	if !opts.NoLock {
		lk := er.NewNSLock(bucket, object)
		lkctx, err := lk.GetLock(ctx, globalOperationTimeout)
		if err != nil {
			return result, err
		}
		ctx = lkctx.Context()
		defer lk.Unlock(lkctx)
	}

	// Re-read when we have lock...
	partsMetadata, errs := readAllFileInfo(ctx, storageDisks, "", bucket, object, versionID, true, true)

func (c *kesClient) Metrics(ctx context.Context) (kes.Metric, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	return c.client.Metrics(ctx)
}

// Version retrieves version information
func (c *kesClient) Version(ctx context.Context) (string, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	return c.client.Version(ctx)
}

// APIs retrieves a list of supported API endpoints