// Confirm that when Reader panics, the empty buffer remains empty
	var buf2 Buffer
	defer func() {
		recover()
		check(t, "TestReadFromPanicReader (2)", &buf2, "")
	}()
	buf2.ReadFrom(panicReader{panic: true})
}

func TestReadFromNegativeReader(t *testing.T) {
	var b Buffer
	defer func() {
		switch err := recover().(type) {
		case nil:
			t.Fatal("bytes.Buffer.ReadFrom didn't panic")
		case error:

			// Account for padding and forced compression overhead and encryption.
			buffer = make([]byte, data.ActualSize()+256+32+32, data.ActualSize()*2+512)
		} else {
			buffer = globalBytePoolCap.Load().Get()
			defer globalBytePoolCap.Load().Put(buffer)
		}
	case size >= fi.Erasure.BlockSize:
		buffer = globalBytePoolCap.Load().Get()
		defer globalBytePoolCap.Load().Put(buffer)
	case size < fi.Erasure.BlockSize:

		buffer = make([]byte, size, 2*size+int64(fi.Erasure.ParityBlocks+fi.Erasure.DataBlocks-1))
	}

	if len(buffer) > int(fi.Erasure.BlockSize) {
		buffer = buffer[:fi.Erasure.BlockSize]
	}

	writers := make([]io.Writer, len(onlineDisks))
	inlineBuffers := make([]*bytes.Buffer, len(onlineDisks))
	for i, disk := range onlineDisks {
		if disk == nil {

	values.Set(storageRESTTotalVersions, strconv.Itoa(len(versions)))

	var buffer bytes.Buffer
	encoder := msgp.NewWriter(&buffer)
	for _, version := range versions {
		version.EncodeMsg(encoder)
	}
	storageLogIf(ctx, encoder.Flush())

	errs = make([]error, len(versions))

	respBody, err := client.call(ctx, storageRESTMethodDeleteVersions, values, &buffer, -1)
	defer xhttp.DrainBody(respBody)
	if err != nil {

    ([CVE-2021-37649](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37649))
*   Fixes a segfault and a heap buffer overflow in
    `{Experimental,}DatasetToTFRecord`
    ([CVE-2021-37650](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37650))
*   Fixes a heap buffer overflow in `FractionalAvgPoolGrad`
    ([CVE-2021-37651](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-37651))

	}

	if verifier == nil {
		n, err = file.ReadAt(buffer, offset)
		return int64(n), err
	}

	h := verifier.algorithm.New()
	if _, err = io.Copy(h, io.LimitReader(file, offset)); err != nil {
		return 0, err
	}

	if n, err = io.ReadFull(file, buffer); err != nil {
		return int64(n), err
	}

	if _, err = h.Write(buffer); err != nil {
		return 0, err
	}

	}{
		{byteData: generateBytesData(6 * humanize.KiByte)},
	}
	h := md5.New()
	h.Write(bytesData[0].byteData)
	bytesData[0].md5sum = hex.EncodeToString(h.Sum(nil))

	buffers := []*bytes.Buffer{
		new(bytes.Buffer),
		new(bytes.Buffer),
	}

	// set of inputs for uploading the objects before tests for downloading is done.
	putObjectInputs := []struct {
		bucketName    string
		objectName    string

	dstDataDir := latestMeta.DataDir
	if latestMeta.XLV1 {
		dstDataDir = migrateDataDir
	}

	var inlineBuffers []*bytes.Buffer
	if !latestMeta.Deleted && !latestMeta.IsRemote() {
		if latestMeta.InlineData() {
			inlineBuffers = make([]*bytes.Buffer, len(outDatedDisks))
		}

		erasureInfo := latestMeta.Erasure
		for partIndex := 0; partIndex < len(latestMeta.Parts); partIndex++ {

		return res, err
	}
	defer func() {
		if err == nil && !skipAccessChecks(dstVolume) {
			p.storage.setWriteAttribute(p.totalWrites.Add(1))
		}
		done(&err)
	}()

	// Copy inline data to a new buffer to function with deadlines.
	if len(fi.Data) > 0 {
		fi.Data = append(grid.GetByteBufferCap(len(fi.Data))[:0], fi.Data...)
	}

make(chan int, 100)
</pre>

<p>
The capacity, in number of elements, sets the size of the buffer in the channel.
If the capacity is zero or absent, the channel is unbuffered and communication
succeeds only when both a sender and receiver are ready. Otherwise, the channel
is buffered and communication succeeds without blocking if the buffer
is not full (sends) or not empty (receives).