) []prometheus.Metric {
	metrics := make([]prometheus.Metric, 0, len(m.values))
	for metricName, mv := range m.values {
		desc := m.descriptors[metricName]
		promDesc := desc.toPromDesc(namePrefix, extraLabels)
		for _, v := range mv {
			// labelValues is in the same order as the variable labels in the
			// descriptor.
			labelValues := make([]string, 0, len(v.Labels))
			for _, k := range desc.VariableLabels {

	copyPartsMetadata := make([]FileInfo, len(partsMetadata))
	for i := range latestDisks {
		if latestDisks[i] == nil {
			continue
		}
		copyPartsMetadata[i] = partsMetadata[i]
	}

	for i := range outDatedDisks {
		if outDatedDisks[i] == nil {
			continue
		}
		// Make sure to write the FileInfo information
		// that is expected to be in quorum.

	if err != nil {
		t.Fatal(err)
	}

	// Make 9 disks offline, which leaves less than quorum number of disks
	// in a 16 disk Erasure setup. The original disks are 'replaced' with
	// naughtyDisks that fail after 'f' successful StorageAPI method
	// invocations, where f - [0,4)
	for f := 0; f < 2; f++ {
		diskErrors := make(map[int]error)
		for i := 0; i <= f; i++ {
			diskErrors[i] = nil
		}

			BitrotChecksumAlgo: HighwayHash,
			ErasureDist:        make([]uint8, len(fi.Erasure.Distribution)),
			PartNumbers:        make([]int, len(fi.Parts)),
			PartETags:          nil,
			PartSizes:          make([]int64, len(fi.Parts)),
			PartActualSizes:    make([]int64, len(fi.Parts)),
			MetaSys:            make(map[string][]byte),
			MetaUser:           make(map[string]string, len(fi.Metadata)),
		}

# Note: We intentionally don't add the flags we'd need to make Flags and Enums
# work. That's because the Proguard configuration required to make them work on
# optimized code would preclude lots of optimization, like converting enums
# into ints.

# Throwables uses internal APIs for lazy stack trace resolution
-dontnote sun.misc.SharedSecrets
-keep class sun.misc.SharedSecrets {
  *** getJavaLangAccess(...);
}
-dontnote sun.misc.JavaLangAccess

 * An implementation of {@code Iterable} which throws an exception on all invocations of the {@link
 * #iterator()} method after the first, and whose iterator is always unmodifiable.
 *
 * <p>The {@code Iterable} specification does not make it absolutely clear what should happen on a
 * second invocation, so implementors have made various choices, including:
 *
 * <ul>
 *   <li>returning the same iterator again
 *   <li>throwing an exception of some kind

patch -p1 < /gcc9-fixups.patch
patch -p1 < /stringop_trunc.patch
cd ../glibc-build
../glibc-src/configure --prefix=/usr --disable-werror --enable-obsolete-rpc --disable-profile
make -j$(nproc)
make install DESTDIR=${TARGET}
cd ..

# Symlinks in the binary distribution are set up for installation in /usr, we
# need to fix up all the links to stay within /${TARGET}.
/fixlinks.sh "/${TARGET}"

	})
	testCancel(func() {
		rb.Write(make([]byte, sz))
		rb.WriteByte(0)
	})
	testCancel(func() {
		rb.Read([]byte{10: 1})
	})
	testCancel(func() {
		rb.ReadByte()
	})
	testCancel(func() {
		rb.Write(make([]byte, sz))
		rb.Flush()
	})
}

func TestWriteAfterWriterClose(t *testing.T) {
	rb := New(100).SetBlocking(true)

	done := make(chan error)
	go func() {
		defer close(done)

	}

	format, err := getFormatJSON(localDisks[0].path)
	if err != nil {
		log.Fatal(err)
	}

	setSize := len(format.XL.Sets[0])

	expectedDisksName := make(map[string]string)
	actualDisksName := make(map[string]string)

	// Calculate the set/disk index
	for _, disk := range localDisks {
		expectedDisksName[fmt.Sprintf("%d-%d", disk.index/setSize, disk.index%setSize)] = disk.path

	// with less quorum return error.
	if quorum < 1 {
		return FileInfo{}, InsufficientReadQuorum{Err: errErasureReadQuorum, Type: RQInsufficientOnlineDrives}
	}
	metaHashes := make([]string, len(metaArr))
	h := sha256.New()
	for i, meta := range metaArr {
		if !meta.IsValid() {
			continue
		}
		etagOnly := modTime.Equal(timeSentinel) && (etag != "" && etag == meta.Metadata["etag"])