type ObjectSegmentReaderFn func(offset int64) (io.ReadCloser, error)

// ObjectReadSeekCloser implements ReadSeekCloser interface for reading objects.
// It uses a function that returns a io.ReadCloser for the object.
type ObjectReadSeekCloser struct {
	segmentReader ObjectSegmentReaderFn

	size   int64 // actual object size regardless of compression/encryption
	offset int64
	reader io.ReadCloser

	m.wg.Wait()
	close(m.opCh)
	atomic.StoreInt32(&m.closed, 1)

	if len(m.opCh) > 0 {
		healingLogEvent(context.Background(), "Saving MRF healing data (%d entries)", len(m.opCh))
	}

	newReader := func() io.ReadCloser {
		r, w := io.Pipe()
		go func() {
			// Initialize MRF meta header.
			var data [4]byte
			binary.LittleEndian.PutUint16(data[0:2], healMRFMetaFormat)

type Args struct {
	URL         *xnet.URL             `json:"url"`
	AuthToken   string                `json:"authToken"`
	Transport   http.RoundTripper     `json:"-"`
	CloseRespFn func(r io.ReadCloser) `json:"-"`
}

// Validate - validate opa configuration params.
func (a *Args) Validate() error {
	req, err := http.NewRequest(http.MethodPost, a.URL.String(), bytes.NewReader([]byte("")))
	if err != nil {

	// map of config names to providerCfg's
	ProviderCfgs map[string]*providerCfg

	pubKeys          publicKeys
	roleArnPolicyMap map[arn.ARN]string

	transport   http.RoundTripper
	closeRespFn func(io.ReadCloser)
}

// Clone returns a cloned copy of OpenID config.
func (r *Config) Clone() Config {
	if r == nil {
		return Config{}
	}
	cfg := Config{
		Enabled:            r.Enabled,

// and a healthcheck routine gets invoked that would reconnect.
func (client *storageRESTClient) callGet(ctx context.Context, rpcMethod string, values url.Values, body io.Reader, length int64) (io.ReadCloser, error) {
	if values == nil {
		values = make(url.Values)
	}
	values.Set(storageRESTDiskID, *client.diskID.Load())

// out of HTTP "chunked" format before returning it.
// The s3ChunkedReader returns io.EOF when the final 0-length chunk is read.
func newUnsignedV4ChunkedReader(req *http.Request, trailer bool) (io.ReadCloser, APIErrorCode) {
	if trailer {
		// Discard anything unsigned.
		req.Trailer = make(http.Header)
		trailers := req.Header.Values(awsTrailerHeader)
		for _, key := range trailers {
			req.Trailer.Add(key, "")
		}

		pubKeys: pubKeys,
		arnProviderCfgsMap: map[arn.ARN]*providerCfg{
			DummyRoleARN: &provider,
		},
		ProviderCfgs: map[string]*providerCfg{
			"1": &provider,
		},
		closeRespFn: func(rc io.ReadCloser) {
			rc.Close()
		},
	}

	var claims jwtgo.MapClaims
	if err = cfg.Validate(context.Background(), DummyRoleARN, token, "", "", claims); err != nil {
		t.Fatal(err)
	}
}

// Args for authentication plugin.
type Args struct {
	URL         *xnet.URL
	AuthToken   string
	Transport   http.RoundTripper
	CloseRespFn func(r io.ReadCloser)

	RolePolicy string
	RoleARN    arn.ARN
}

// Validate - validate configuration params.
func (a *Args) Validate() error {

	PutWithMeta(ctx context.Context, object string, r io.Reader, length int64, meta map[string]string) (remoteVersionID, error)
	Get(ctx context.Context, object string, rv remoteVersionID, opts WarmBackendGetOpts) (io.ReadCloser, error)
	Remove(ctx context.Context, object string, rv remoteVersionID) error
	InUse(ctx context.Context) (bool, error)
}

const probeObject = "probeobject"

		return 0, err
	}
	return d.disk.ReadFile(ctx, volume, path, offset, buf, verifier)
}

func (d *naughtyDisk) ReadFileStream(ctx context.Context, volume, path string, offset, length int64) (io.ReadCloser, error) {
	if err := d.calcError(); err != nil {
		return nil, err
	}
	return d.disk.ReadFileStream(ctx, volume, path, offset, length)
}