// NewGetObjectReader creates a new GetObjectReader. The cleanUpFns
// are called on Close() in FIFO order as passed in ObjReadFn(). NOTE: It is
// assumed that clean up functions do not panic (otherwise, they may
// not all run!).
func NewGetObjectReader(rs *HTTPRangeSpec, oi ObjectInfo, opts ObjectOptions, h http.Header) (

	tgtClient, err := globalTierConfigMgr.getDriver(ctx, oi.TransitionedObject.Tier)
	if err != nil {
		return nil, fmt.Errorf("transition storage class not configured: %w", err)
	}

	fn, off, length, err := NewGetObjectReader(rs, oi, opts, h)
	if err != nil {
		return nil, ErrorRespToObjectError(err, bucket, object)
	}
	gopts := WarmBackendGetOpts{}

	// get correct offsets for object
	if off >= 0 && length >= 0 {

		if err != nil {
			return nil, err
		}
		unlockOnDefer = false
		return gr.WithCleanupFuncs(nsUnlocker), nil
	}

	fn, off, length, err := NewGetObjectReader(rs, objInfo, opts, h)
	if err != nil {
		return nil, err
	}

	if unlockOnDefer {
		unlockOnDefer = fi.InlineData() || len(fi.Data) > 0
	}

	pr, pw := xioutil.WaitPipe()
	go func() {

	tgt, oi, proxy := proxyHeadToRepTarget(ctx, bucket, object, rs, opts, proxyTargets)
	if !proxy.Proxy {
		return nil, proxy, nil
	}
	fn, _, _, err := NewGetObjectReader(nil, oi, opts, h)
	if err != nil {
		return nil, proxy, err
	}
	gopts := minio.GetObjectOptions{
		VersionID:            opts.VersionID,
		ServerSideEncryption: opts.ServerSideEncryption,