type nsLockMap struct {
	// Indicates if namespace is part of a distributed setup.
	isDistErasure bool
	lockMap       map[string]*nsLock
	lockMapMutex  sync.Mutex
}

// Lock the namespace resource.
func (n *nsLockMap) lock(ctx context.Context, volume string, path string, lockSource, opsID string, readLock bool, timeout time.Duration) (locked bool) {
	resource := pathJoin(volume, path)

	n.lockMapMutex.Lock()

	healLocalDisks map[Endpoint]bool
	healStatus     map[string]healingTracker // Indexed by disk ID
}

// newHealState - initialize global heal state management
func newHealState(ctx context.Context, cleanup bool) *allHealState {
	hstate := &allHealState{
		healSeqMap:     make(map[string]*healSequence),
		healLocalDisks: make(map[Endpoint]bool),
		healStatus:     make(map[string]healingTracker),
	}

// if validate is true, an error is returned if the user does not exist.
func getUserWithProvider(ctx context.Context, userProvider, user string, validate bool) (string, error) {
	switch userProvider {
	case madmin.BuiltinProvider:
		if validate {
			if _, ok := globalIAMSys.GetUser(ctx, user); !ok {
				return "", errNoSuchUser
			}
		}
		return user, nil

		}
	}
}

// TestRestoreObjOnDisk tests restoreObjStatus' OnDisk method
func TestRestoreObjOnDisk(t *testing.T) {
	testCases := []struct {
		restoreStatus restoreObjStatus
		ondisk        bool
	}{
		{
			// restore in progress
			restoreStatus: ongoingRestoreObj(),
			ondisk:        false,
		},
		{
			// restore completed but expired

)

// PeerSiteInfo is a wrapper struct around madmin.PeerSite with extra info on site status
type PeerSiteInfo struct {
	madmin.PeerSite
	self         bool
	DeploymentID string
	Replicated   bool // true if already participating in site replication
	Empty        bool // true if cluster has no buckets
}

// getSiteStatuses gathers more info on the sites being added

	deleteClauses = []string{"DELETE", "FROM", "WHERE"}
)

type Config struct {
	LastInsertIDReversed bool
	CreateClauses        []string
	QueryClauses         []string
	UpdateClauses        []string
	DeleteClauses        []string
}

func RegisterDefaultCallbacks(db *gorm.DB, config *Config) {
	enableTransaction := func(db *gorm.DB) bool {
		return !db.SkipDefaultTransaction
	}

	if len(config.CreateClauses) == 0 {

}

// Check to allow access to the reserved "bucket" `/minio` for Admin
// API requests.
func isAdminReq(r *http.Request) bool {
	return strings.HasPrefix(r.URL.Path, adminPathPrefix)
}

// Check to allow access to the reserved "bucket" `/minio` for KMS
// API requests.
func isKMSReq(r *http.Request) bool {
	return strings.HasPrefix(r.URL.Path, kmsPathPrefix)
}

// Supported Amz date headers.

    int tasksPerThread = 10;
    int nTasks = nThreads * tasksPerThread;
    ExecutorService pool = newFixedThreadPool(nThreads);
    ImmutableList<String> keys = ImmutableList.of("a", "b", "c");
    try {
      List<Future<int[]>> futures = newArrayListWithExpectedSize(nTasks);
      for (int i = 0; i < nTasks; i++) {
        futures.add(pool.submit(new MutateTask(multiset, keys)));
      }

      int[] deltas = new int[3];

	end          int       // End of data in buf.
	err          error     // Sticky error.
	empties      int       // Count of successive empty tokens.
	scanCalled   bool      // Scan has been called; buffer is in use.
	done         bool      // Scan has finished.
}

// SplitFunc is the signature of the split function used to tokenize the
// input. The arguments are an initial substring of the remaining unprocessed

		}
	}
}

// Tests isCompressed method
func TestIsCompressed(t *testing.T) {
	testCases := []struct {
		objInfo ObjectInfo
		result  bool
		err     bool
	}{
		0: {
			objInfo: ObjectInfo{
				UserDefined: map[string]string{
					"X-Minio-Internal-compression": compressionAlgorithmV1,
					"content-type":                 "application/octet-stream",