defer xioutil.ODirectPoolSmall.Put(bufp)

	for left > 0 {
		// Read expected hash...
		h.Reset()
		n, err := io.ReadFull(r, hashBuf)
		if err != nil {
			// Read's failed for object with right size, file is corrupt.
			return err
		}
		// Subtract hash length..
		left -= int64(n)
		if left < shardSize {
			shardSize = left
		}

		read, err := io.CopyBuffer(h, io.LimitReader(r, shardSize), *bufp)

		t.Errorf("r.Len(): got %d, want %d", got, want)
	}
	if n, err := r.Read(make([]byte, 10)); err != nil || n != 10 {
		t.Errorf("Read failed: read %d %v", n, err)
	}
	if got, want := r.Len(), 1; got != want {
		t.Errorf("r.Len(): got %d, want %d", got, want)
	}
	if n, err := r.Read(make([]byte, 1)); err != nil || n != 1 {
		t.Errorf("Read failed: read %d %v; want 1, nil", n, err)
	}
	if got, want := r.Len(), 0; got != want {

) (bool, error) {
	a, err := os.ReadFile(args[0])
	if err != nil {
		return false, fmt.Errorf("could not read %q: %v", args[0], err)
	}
	b, err := os.ReadFile(args[1])
	if err != nil {
		return false, fmt.Errorf("could not read %q: %v", args[1], err)
	}

	diff, err := compare.ManifestDiffWithRenameSelectIgnore(string(a), string(b), renameResources, selectResources,

		t.Fatalf("Failed to read xl meta data %v", reducedErr)
	}

	// Test 1: Test that all disks are returned without any failures with
	// unmodified meta data
	partsMetadata, errs := readAllFileInfo(ctx, erasureDisks, "", bucket, object, "", false, true)
	if err != nil {
		t.Fatalf("Failed to read xl meta data %v", err)
	}

	minioMetaTmpDeletedBucket = minioMetaTmpBucket + "/.trash"

	// DNS separator (period), used for bucket name validation.
	dnsDelimiter = "."
	// On compressed files bigger than this;
	compReadAheadSize = 100 << 20
	// Read this many buffers ahead.
	compReadAheadBuffers = 5
	// Size of each buffer.
	compReadAheadBufSize = 1 << 20
	// Pad Encrypted+Compressed files to a multiple of this.
	compPadEncrypted = 256

			}
		})
	}
}

type errReader struct {
	err error
}

func (e errReader) Read(p []byte) (n int, err error) {
	return 0, e.err
}

func TestReadFailures(t *testing.T) {
	customErr := errors.New("unable to read file :(")
	cases := []struct {
		file            string
		recordDelimiter string
		fieldDelimiter  string
		sendErr         error

// the Close() function is called.
type closeNotifier struct {
	rc   io.ReadCloser
	done chan struct{}
}

func (c *closeNotifier) Read(p []byte) (n int, err error) {
	n, err = c.rc.Read(p)
	if err != nil {
		if c.done != nil {
			xioutil.SafeClose(c.done)
			c.done = nil
		}
	}
	return n, err
}

func (c *closeNotifier) Close() error {

func (r *PipeReader) CloseWithError(err error) error {
	err = r.PipeReader.CloseWithError(err)
	r.wait()
	return err
}

// WaitPipe implements wait-group backend io.Pipe to provide
// synchronization between read() end with write() end.
func WaitPipe() (*PipeReader, *PipeWriter) {
	r, w := io.Pipe()
	var wg sync.WaitGroup
	wg.Add(1)
	return &PipeReader{
			PipeReader: r,
			wait:       wg.Wait,
		}, &PipeWriter{

var ErrAlreadyLocked = errors.New("file already locked")

// RLockedFile represents a read locked file, implements a special
// closer which only closes the associated *os.File when the ref count.
// has reached zero, i.e when all the readers have given up their locks.
type RLockedFile struct {
	*LockedFile
	mutex sync.Mutex
	refs  int // Holds read lock refs.
}

// IsClosed - Check if the rlocked file is already closed.

		return nil
	}

	return errors.New("no local drive found")
}

// rotate rotates the journal. If a read-only journal already exists it does
// nothing. Otherwise renames the active journal to a read-only journal and
// opens a new active journal.
func (jd *tierDiskJournal) rotate() error {
	// Do nothing if a read-only journal file already exists.
	if _, err := os.Stat(jd.ReadOnlyPath()); err == nil {
		return nil
	}