return nil
}

// updates rebalance.bin from let's say 2 pool setup in the middle
// of a rebalance, was expanded can cause z.rebalMeta to be outdated
// due to a missing new pool. This function tries to handle this
// scenario, albeit rare it seems to have occurred in the wild.
//
// since we do not explicitly disallow it, but it is okay for them
// expand and then we continue to rebalance.

		reqInfo := (&logger.ReqInfo{}).AppendTags("size", strconv.FormatUint(size, 10))
		ctx := logger.SetReqInfo(GlobalContext, reqInfo)
		logger.CriticalIf(ctx, err)
	}
	return int64(size)
}

// DecryptObjectInfo tries to decrypt the provided object if it is encrypted.
// It fails if the object is encrypted and the HTTP headers don't contain
// SSE-C headers or the object is not encrypted but SSE-C headers are provided. (AWS behavior)

	globalObjectAPI = o
	globalObjLayerMutex.Unlock()
}

// objectAPIHandler implements and provides http handlers for S3 API.
type objectAPIHandlers struct {
	ObjectAPI func() ObjectLayer
}

// getHost tries its best to return the request host.
// According to section 14.23 of RFC 2616 the Host header
// can include the port number if the default value of 80 is not used.
func getHost(r *http.Request) string {
	if r.URL.IsAbs() {

}

// compressSelfTest performs a self-test to ensure that compression
// algorithms completes a roundtrip. If any algorithm
// produces an incorrect checksum it fails with a hard error.
//
// compressSelfTest tries to catch any issue in the compression implementation
// early instead of silently corrupting data.
func compressSelfTest() {
	// 4 MB block.
	// Approx runtime ~30ms
	data := make([]byte, 4<<20)

		Timeout: drwMutexInfinite,
	})
}

// Options lock options.
type Options struct {
	Timeout       time.Duration
	RetryInterval time.Duration
}

// GetLock tries to get a write lock on dm before the timeout elapses.
//
// If the lock is already in use, the calling go routine
// blocks until either the mutex becomes available and return success or

// APIs retrieves a list of supported API endpoints
func (c *kesClient) APIs(ctx context.Context) ([]kes.API, error) {
	c.lock.RLock()
	defer c.lock.RUnlock()

	return c.client.APIs(ctx)
}

// CreateKey tries to create a new key at the KMS with the
// given key ID.
//
// If the a key with the same keyID already exists then
// CreateKey returns kes.ErrKeyExists.

}

// load the cache content with name from minioMetaBackgroundOpsBucket.
// Only backend errors are returned as errors.
// The loader is optimistic and has no locking, but tries 5 times before giving up.
// If the object is not found, a nil error with empty data usage cache is returned.
func (d *dataUsageCache) load(ctx context.Context, store objectIO, name string) error {

// testing.
type OpenIDClientAppParams struct {
	ClientID, ClientSecret, ProviderURL, RedirectURL string
}

// MockOpenIDTestUserInteraction - tries to login to dex using provided credentials.
// It performs the user's browser interaction to login and retrieves the auth
// code from dex and exchanges it for a JWT.

	for {
		// Only log once every 10 iterations, then reset the tries count.
		verbose = tries >= 10
		if verbose {
			tries = 1
		}

		storageDisks, format, err := connectLoadInitFormats(verbose, firstDisk, endpoints, poolCount, setCount, setDriveCount, deploymentID)
		if err == nil {
			return storageDisks, format, nil
		}

		tries++
		switch err {
		case errNotFirstDisk: