},
	}}
}

// ServeHTTP forwards HTTP traffic using the configured transport
func (f *Forwarder) ServeHTTP(w http.ResponseWriter, inReq *http.Request) {
	outReq := new(http.Request)
	*outReq = *inReq // includes shallow copies of maps, but we handle this in Director

	revproxy := httputil.ReverseProxy{
		Director: func(req *http.Request) {
			f.modifyRequest(req, inReq.URL)
		},
		BufferPool:    newBufPool(128 << 10),

// This is usually orders of magnitude faster than actually sorting.
func (m metaCacheEntries) isSorted() bool {
	return sort.SliceIsSorted(m, m.less)
}

// shallowClone will create a shallow clone of the array objects,
// but object metadata will not be cloned.
func (m metaCacheEntries) shallowClone() metaCacheEntries {
	dst := make(metaCacheEntries, len(m))
	copy(dst, m)
	return dst
}

		if err != nil {
			m.Errors = append(m.Errors, fmt.Sprintf("%s: %v (loadStat)", byHostName, err.Error()))
		} else {
			m.Aggregated.CPU.LoadStat = loadStat
		}
	}
	// Add types...

	// ByHost is a shallow reference, so careful about sharing.
	m.ByHost = map[string]madmin.Metrics{byHostName: m.Aggregated}
	m.Hosts = append(m.Hosts, byHostName)

	return m
}

			continue
		} // doesn't exist on disk remove from memory.
		delete(sys.metadataMap, bucket)
		globalBucketMonitor.DeleteBucket(bucket)
	}
}

// Set - sets a new metadata in-memory.
// Only a shallow copy is saved and fields with references
// cannot be modified without causing a race condition,
// so they should be replaced atomically and not appended to, etc.
// Data is not persisted to disk.

		XLV1:        true,
		NumVersions: 1,
	}

	return fi, nil
}

// Signature will return a signature that is expected to be the same across all disks.
func (m *xlMetaV1Object) Signature() [4]byte {
	// Shallow copy
	c := *m
	// Zero unimportant fields
	c.Erasure.Index = 0
	c.Minio.Release = ""
	crc := hashDeterministicString(c.Meta)
	c.Meta = nil

	if bts, err := c.MarshalMsg(metaDataPoolGet()); err == nil {

			j.ObjectV2.ModTime > 0
	case DeleteType:
		return j.DeleteMarker != nil &&
			j.DeleteMarker.ModTime > 0
	}
	return false
}

// header will return a shallow header of the version.
func (j *xlMetaV2Version) header() xlMetaV2VersionHeader {
	var flags xlFlags
	if j.FreeVersion() {
		flags |= xlFlagFreeVersion
	}
	if j.Type == ObjectType && j.ObjectV2.UsesDataDir() {

			return false
		}
	}
	return true
}

// clone creates a deep-copy clone.
func (r *replicationAllStats) clone() *replicationAllStats {
	if r == nil {
		return nil
	}

	// Shallow copy
	dst := *r

	// Copy individual targets.
	dst.Targets = make(map[string]replicationStats, len(r.Targets))
	for k, v := range r.Targets {
		dst.Targets[k] = v
	}

	return &dst
}

type Target interface {
	ID() TargetID
	IsActive() (bool, error)
	Save(Event) error
	SendFromStore(store.Key) error
	Close() error
	Store() TargetStore
}

// TargetStore is a shallow version of a target.Store
type TargetStore interface {
	Len() int
}

// Stats is a collection of stats for multiple targets.
type Stats struct {
	TotalEvents        int64 // Deprecated
	EventsSkipped      int64

func NewURLValuesWith(values map[string][]string) *URLValues {
	u := URLValues(values)
	return &u
}

// Values returns the url.Values.
// If u is nil, an empty url.Values is returned.
// The values are a shallow copy of the underlying map.
func (u *URLValues) Values() url.Values {
	if u == nil {
		return url.Values{}
	}
	return url.Values(*u)
}

// Recycle the underlying map.
func (u *URLValues) Recycle() {

func (c *Client) Call(ctx context.Context, method string, values url.Values, body io.Reader, length int64) (reply io.ReadCloser, err error) {
	if !c.IsOnline() {
		return nil, &NetworkError{Err: c.LastError()}
	}

	// Shallow copy. We don't modify the *UserInfo, if set.
	// All other fields are copied.
	u := *c.url
	u.Path = path.Join(u.Path, method)
	u.RawQuery = values.Encode()

	req, err := c.newRequest(ctx, u, body)