hammerRWMutex(t, 10, 10, n)
	hammerRWMutex(t, 10, 5, n)
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic(t *testing.T) {
	defer func() {
		if recover() == nil {
			t.Fatalf("unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewDRWMutex(ds, "test")
	mu.Unlock(context.Background())
}

// Borrowed from rwmutex_test.go
func TestUnlockPanic2(t *testing.T) {

		}
	}()
	mu := NewLRWMutex()
	mu.RLock()
	mu.Unlock()
}

// Borrowed from rwmutex_test.go
func TestRUnlockPanic(t *testing.T) {
	defer func() {
		if recover() == nil {
			t.Fatalf("read unlock of unlocked RWMutex did not panic")
		}
	}()
	mu := NewLRWMutex()
	mu.RUnlock()
}

// Borrowed from rwmutex_test.go
func TestRUnlockPanic2(t *testing.T) {

type distLockInstance struct {
	rwMutex *dsync.DRWMutex
	opsID   string
}

// Lock - block until write lock is taken or timeout has occurred.
func (di *distLockInstance) GetLock(ctx context.Context, timeout *dynamicTimeout) (LockContext, error) {
	lockSource := getSource(2)
	start := UTCNow()

	newCtx, cancel := context.WithCancel(ctx)
	if !di.rwMutex.GetLock(newCtx, cancel, di.opsID, lockSource, dsync.Options{

	if err != nil {
		t.Fatal(err)
	}
	fmt.Println(token)

	u1, err := xnet.ParseHTTPURL(server.URL)
	if err != nil {
		t.Fatal(err)
	}

	pubKeys := publicKeys{
		RWMutex: &sync.RWMutex{},
		pkMap:   map[string]interface{}{},
	}
	pubKeys.add("76b95ae5-33ef-4283-97b7-d2a85dc2d8f4", []byte("WNGvKVyyNmXq0TraSvjaDN9CtpFgx35IXtGEffMCPR0"))

	if len(pubKeys.pkMap) != 1 {

	// Can be swapped to another while holding swapMu
	systemTargets  = []Target{}
	swapSystemMuRW sync.RWMutex

	// auditTargets is the list of enabled audit loggers
	// Must be immutable at all times.
	// Can be swapped to another while holding swapMu
	auditTargets  = []Target{}
	swapAuditMuRW sync.RWMutex

	// This is always set represent /dev/console target
	consoleTgt Target
)

type bucketThrottle struct {
	*rate.Limiter
	NodeBandwidthPerSec int64
}

// Monitor holds the state of the global bucket monitor
type Monitor struct {
	tlock sync.RWMutex // mutex for bucket throttling
	mlock sync.RWMutex // mutex for bucket measurement

	bucketsThrottle    map[BucketOptions]*bucketThrottle
	bucketsMeasurement map[BucketOptions]*bucketMeasurement // Buckets with objects in flight

	"github.com/minio/minio/internal/config/ilm"
)

var globalILMConfig = ilmConfig{
	cfg: ilm.Config{
		ExpirationWorkers: 100,
		TransitionWorkers: 100,
	},
}

type ilmConfig struct {
	mu  sync.RWMutex
	cfg ilm.Config
}

func (c *ilmConfig) getExpirationWorkers() int {
	c.mu.RLock()
	defer c.mu.RUnlock()

	return c.cfg.ExpirationWorkers
}

func (c *ilmConfig) getTransitionWorkers() int {

	currentS3Requests *HTTPAPIStats
	totalS3Requests   *HTTPAPIStats
	totalS34xxErrors  *HTTPAPIStats
	totalS35xxErrors  *HTTPAPIStats
	totalS3Canceled   *HTTPAPIStats
}

type bucketHTTPStats struct {
	sync.RWMutex
	httpStats map[string]bucketHTTPAPIStats
}

func newBucketHTTPStats() *bucketHTTPStats {
	return &bucketHTTPStats{
		httpStats: make(map[string]bucketHTTPAPIStats),
	}
}

	currentSendCalls  atomic.Int64
	totalEvents       atomic.Int64
	eventsSkipped     atomic.Int64
	eventsErrorsTotal atomic.Int64

	sync.RWMutex
	targets map[TargetID]Target
	queue   chan asyncEvent
	ctx     context.Context

	statLock    sync.RWMutex
	targetStats map[TargetID]targetStat
}

type targetStat struct {
	// The number of concurrent async Send calls per targets
	currentSendCalls int64

	// ETag (hex encoded md5sum) of empty string.
	emptyETag = "d41d8cd98f00b204e9800998ecf8427e"
)

// Global object layer mutex, used for safely updating object layer.
var globalObjLayerMutex sync.RWMutex

// Global object layer, only accessed by globalObjectAPI.
var globalObjectAPI ObjectLayer

type storageOpts struct {
	cleanUp     bool
	healthCheck bool
}