// errInvalidRange - returned when given range value is not valid.
var errInvalidRange = errors.New("Invalid range")

// errInvalidRangeSource - returned when given range value exceeds
// the source object size.
var errInvalidRangeSource = errors.New("Range specified exceeds source object size")

// error returned by disks which are to be initialized are waiting for the

// server lists all metrics that could be returned for the requested path.
//
// The (repeatable) `buckets` query parameter is a list of bucket names (or it
// could be a comma separated value) to return metrics with a bucket label.
// Bucket metrics will be returned only for the provided buckets. If no buckets
// parameter is provided, no bucket metrics are returned.

// An Update function must be set to provide an updated value when needed.
type Cache[T any] struct {
	// updateFn must return an updated value.
	// If an error is returned the cached value is not set.
	// Only one caller will call this function at any time, others will be blocking.
	// The returned value can no longer be modified once returned.
	// Should be set before calling Get().
	updateFn func() (T, error)

	// ttl for a cached value.

		switch r {
		case ' ', '\t', '\n', '\v', '\f', '\r':
			return true
		case '\u0085', '\u00A0':
			return true
		}
		return false
	}
	// High-valued ones.
	if '\u2000' <= r && r <= '\u200a' {
		return true
	}
	switch r {
	case '\u1680', '\u2028', '\u2029', '\u202f', '\u205f', '\u3000':
		return true
	}
	return false
}

	} else if err != nil {
		return true
	}
	// Fall back...
	xlMeta, err := e.xlmeta()
	if err != nil || len(xlMeta.versions) == 0 {
		return true
	}
	return xlMeta.versions[0].header.Type == DeleteType
}

// isAllFreeVersions returns if all objects are free versions.
// If metadata is NOT versioned false will always be returned.
// If v2 and UNABLE to load metadata true will be returned.

	if r == nil || other == nil {
		return r == other
	}
	var o RemoteErr
	if errors.As(other, &o) {
		return r == &o
	}
	return false
}

// IsRemoteErr returns the value if the error is a RemoteErr.
func IsRemoteErr(err error) *RemoteErr {
	var r RemoteErr
	if errors.As(err, &r) {
		return &r
	}
	return nil
}

type (

	if len(o.UserDefined) == 0 {
		return nil
	}
	z, ok := o.UserDefined[archiveInfoMetadataKey]
	if !ok {
		return nil
	}
	data := []byte(z)
	if v, ok := o.UserDefined[archiveTypeMetadataKey]; ok && v == archiveTypeEnc {
		decrypted, err := o.metadataDecrypter()(archiveTypeEnc, data)
		if err != nil {
			encLogIf(GlobalContext, err)
			return nil
		}
		data = decrypted
	}
	return data
}

func (s *Stream) Send(b []byte) error {
	if s.Requests == nil {
		return errors.New("stream does not accept requests")
	}
	select {
	case s.Requests <- b:
		return nil
	case <-s.ctx.Done():
		return context.Cause(s.ctx)
	}
}

// Results returns the results from the remote server one by one.
// If any error is returned by the callback, the stream will be canceled.

				funcReturnedMu.Unlock()
				outCh <- entry
				if returned {
					xioutil.SafeClose(outCh)
				}
			}
			entry.reusable = returned
			saveCh <- entry
		}
		if !returned {
			xioutil.SafeClose(outCh)
		}
		xioutil.SafeClose(saveCh)
	}()

	return filteredResults()

		// Test case - 3
		// In case of garbage request body ErrMalformedXML is returned.
		{badRequest, globalMinioDefaultRegion, ErrMalformedXML},
		// Test case - 4
		// In case of invalid XML request body ErrMalformedXML is returned.
		{malformedReq, globalMinioDefaultRegion, ErrMalformedXML},
	}

	for i, testCase := range testCases {
		config.SetRegion(globalServerConfig, testCase.serverConfigRegion)