fillReady chan int64
	readerErr error // underlying reader error, if any
}

func newScanner(r io.Reader) *scanner {
	sr := &scanner{
		end:       maxInt,
		fillReq:   make(chan struct{}),
		fillReady: make(chan int64),
	}

	go func() {
		var rpos int64 // total bytes read into buffer

		defer func() {
			atomic.StoreInt64(&sr.end, rpos)
			close(sr.fillReady)
		}()

		for range sr.fillReq {

func (rulesMap RulesMap) add(eventNames []Name, pattern string, targetID TargetID) {
	rules := make(Rules)
	rules.Add(pattern, targetID)

	for _, eventName := range eventNames {
		for _, name := range eventName.Expand() {
			rulesMap[name] = rulesMap[name].Union(rules)
		}
	}
}

// Clone - returns copy of this rules map.
func (rulesMap RulesMap) Clone() RulesMap {

			settings[k] = val
		} else if k != "" {
			settings[k] = k
		}
	}

	return settings
}

func toColumns(val string) (results []string) {
	if val != "" {
		for _, v := range strings.Split(val, ",") {
			results = append(results, strings.TrimSpace(v))
		}
	}
	return
}

func removeSettingFromTag(tag reflect.StructTag, names ...string) reflect.StructTag {
	for _, name := range names {

				}
			}

			if !found {
				t.Errorf("schema %v failed to found primary key: %v", s, field)
			}
		}
	})
}

func checkSchemaField(t *testing.T, s *schema.Schema, f *schema.Field, fc func(*schema.Field)) {
	t.Run("CheckField/"+f.Name, func(t *testing.T) {
		if fc != nil {
			fc(f)
		}

		if f.TagSettings == nil {
			if f.Tag != "" {

				return
			}
		}
	}
	return
}

// EncodeMsg implements msgp.Encodable
func (z BaseOptions) EncodeMsg(en *msgp.Writer) (err error) {
	// map header, size 0
	_ = z
	err = en.Append(0x80)
	if err != nil {
		return
	}
	return
}

// MarshalMsg implements msgp.Marshaler
func (z BaseOptions) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 0

	*io.PipeWriter
	once sync.Once
	done func()
}

// CloseWithError close with supplied error the writer end.
func (w *PipeWriter) CloseWithError(err error) error {
	err = w.PipeWriter.CloseWithError(err)
	w.once.Do(func() {
		w.done()
	})
	return err
}

// PipeReader is similar to io.PipeReader with wait group
type PipeReader struct {
	*io.PipeReader
	wait func()
}

		t.Fatalf("mprotect high failed %s\n", err)
	}
	return b[pagesize : 2*pagesize]
}

func TestEqualNearPageBoundary(t *testing.T) {
	t.Parallel()
	b := dangerousSlice(t)
	for i := range b {
		b[i] = 'A'
	}
	for i := 0; i <= len(b); i++ {
		Equal(b[:i], b[len(b)-i:])
		Equal(b[len(b)-i:], b[:i])
	}
}

func TestIndexByteNearPageBoundary(t *testing.T) {
	t.Parallel()
	b := dangerousSlice(t)

// GO_ADDR2LINETEST_IS_ADDR2LINE is set, and runs the tests otherwise.
func TestMain(m *testing.M) {
	if os.Getenv("GO_ADDR2LINETEST_IS_ADDR2LINE") != "" {
		main()
		os.Exit(0)
	}

	os.Setenv("GO_ADDR2LINETEST_IS_ADDR2LINE", "1") // Set for subprocesses to inherit.
	os.Exit(m.Run())
}

func loadSyms(t *testing.T, dbgExePath string) map[string]string {

	return xlMeta
}

func (m *xlMetaV1Object) AddTestObjectCheckSum(partNumber int, algorithm BitrotAlgorithm, hash string) {
	checksum, err := hex.DecodeString(hash)
	if err != nil {
		panic(err)
	}
	m.Erasure.Checksums[partNumber-1] = ChecksumInfo{partNumber, algorithm, checksum}
}

// AddTestObjectPart - add a new object part in order.

func (e ObjectNameInvalid) Error() string {
	return "Object name invalid: " + e.Bucket + "/" + e.Object
}

// Error returns string an error formatted as the given text.
func (e ObjectNameTooLong) Error() string {
	return "Object name too long: " + e.Bucket + "/" + e.Object
}

// Error returns string an error formatted as the given text.
func (e ObjectNamePrefixAsSlash) Error() string {