return &targetsList{}
}

func (tl *targetsList) get() []Target {
	tl.mu.RLock()
	defer tl.mu.RUnlock()

	return tl.list
}

func (tl *targetsList) add(t Target) {
	tl.mu.Lock()
	defer tl.mu.Unlock()

	tl.list = append(tl.list, t)
}

func (tl *targetsList) set(tgts []Target) {
	tl.mu.Lock()
	defer tl.mu.Unlock()

	tl.list = tgts
}

var (

		}
		sfx += v
	}

	return string(name) + "_" + sfx
}

func updateResourceMetrics(subSys MetricSubsystem, name MetricName, val float64, labels map[string]string, isCumulative bool) {
	resourceMetricsMapMu.Lock()
	defer resourceMetricsMapMu.Unlock()
	subsysMetrics, found := resourceMetricsMap[subSys]
	if !found {
		subsysMetrics = ResourceMetrics{}
	}

	key := getResourceKey(name, labels)

	activeConnections uint64
	sync.RWMutex
}

func (n *netPerfRX) Connect() {
	n.Lock()
	defer n.Unlock()
	n.activeConnections++
	atomic.StoreUint64(&n.RX, 0)
	n.lastToConnect = time.Now()
}

func (n *netPerfRX) Disconnect() {
	n.Lock()
	defer n.Unlock()
	n.activeConnections--
	if n.firstToDisconnect.IsZero() {
		n.RXSample = atomic.LoadUint64(&n.RX)

	// MaxTimeout - maximum timeout for a drive operation
	MaxTimeout time.Duration `json:"maxTimeout"`
}

// Update - updates the config with latest values
func (c *Config) Update(new Config) error {
	configLk.Lock()
	defer configLk.Unlock()
	c.MaxTimeout = getMaxTimeout(new.MaxTimeout)
	return nil
}

// GetMaxTimeout - returns the per call drive operation timeout
func (c *Config) GetMaxTimeout() time.Duration {

	}

	// Compare only necessary headers
	compareKeys := []string{
		"Expires",
		"Cache-Control",
		"Content-Language",
		"Content-Disposition",
		"X-Amz-Object-Lock-Mode",
		"X-Amz-Object-Lock-Retain-Until-Date",
		"X-Amz-Object-Lock-Legal-Hold",
		"X-Amz-Website-Redirect-Location",
		"X-Amz-Meta-",
	}

	// compare metadata on both maps to see if meta is identical
	compareMeta1 := make(map[string]string)

	// are set.
	var lastN []log.Info
	if last > defaultLogBufferCount || last <= 0 {
		last = defaultLogBufferCount
	}

	lastN = make([]log.Info, last)
	sys.RLock()
	sys.logBuf.Do(func(p interface{}) {
		if p != nil {
			lg, ok := p.(log.Info)
			if ok && lg.SendLog(node, logKind) {
				lastN[cnt%last] = lg
				cnt++
			}
		}
	})
	sys.RUnlock()

	sets []*erasureObjects

	// Reference format.
	format *formatErasureV3

	// erasureDisks mutex to lock erasureDisks.
	erasureDisksMu sync.RWMutex

	// Re-ordered list of disks per set.
	erasureDisks [][]StorageAPI

	// Distributed locker clients.
	erasureLockers setsDsyncLockers

	// Distributed lock owner (constant per running instance).
	erasureLockOwner string

	// List of endpoints provided on the command line.

	auditTgts := AuditTargets()
	if len(auditTgts) == 0 {
		return
	}

	var entry audit.Entry
	if w != nil && r != nil {
		reqInfo := GetReqInfo(ctx)
		if reqInfo == nil {
			return
		}
		reqInfo.RLock()
		defer reqInfo.RUnlock()

		entry = internalAudit.ToEntry(w, r, reqClaims, xhttp.GlobalDeploymentID)
		// indicates all requests for this API call are inbound
		entry.Trigger = "incoming"

var a string

func f() {
	a = "hello, world"
	l.Unlock()
}

func main() {
	l.Lock()
	go f()
	l.Lock()
	print(a)
}
</pre>

<p>
is guaranteed to print <code>"hello, world"</code>.
The first call to <code>l.Unlock()</code> (in <code>f</code>) is synchronized
before the second call to <code>l.Lock()</code> (in <code>main</code>) returns,
which is sequenced before the <code>print</code>.
</p>

		iamCache:     newIamCache(),
		client:       client,
		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()
}